From fb7e79eb4c8d6e22b7324de4bb1ea9cd11b8da7c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 7 Apr 2023 14:35:04 +0200 Subject: Merging upstream version 11.5.2. Signed-off-by: Daniel Baumann --- .github/workflows/python-publish.yml | 4 +- CHANGELOG.md | 45 +- README.md | 1 + docs/search.js | 2 +- docs/sqlglot.html | 4 +- docs/sqlglot/dataframe.html | 2 +- docs/sqlglot/dataframe/sql.html | 40 +- docs/sqlglot/dialects.html | 2 +- docs/sqlglot/dialects/bigquery.html | 602 +- docs/sqlglot/dialects/clickhouse.html | 592 +- docs/sqlglot/dialects/databricks.html | 102 +- docs/sqlglot/dialects/dialect.html | 2 +- docs/sqlglot/dialects/drill.html | 334 +- docs/sqlglot/dialects/duckdb.html | 6 +- docs/sqlglot/dialects/hive.html | 789 +- docs/sqlglot/dialects/mysql.html | 1190 +- docs/sqlglot/dialects/oracle.html | 596 +- docs/sqlglot/dialects/postgres.html | 6 +- docs/sqlglot/dialects/presto.html | 6 +- docs/sqlglot/dialects/redshift.html | 913 +- docs/sqlglot/dialects/snowflake.html | 1447 +- docs/sqlglot/dialects/spark.html | 6 +- docs/sqlglot/dialects/sqlite.html | 6 +- docs/sqlglot/dialects/starrocks.html | 6 +- docs/sqlglot/dialects/tableau.html | 6 +- docs/sqlglot/dialects/teradata.html | 6 +- docs/sqlglot/dialects/trino.html | 6 +- docs/sqlglot/dialects/tsql.html | 955 +- docs/sqlglot/diff.html | 2 +- docs/sqlglot/errors.html | 2 +- docs/sqlglot/executor.html | 2 +- docs/sqlglot/executor/context.html | 2 +- docs/sqlglot/executor/env.html | 2 +- docs/sqlglot/executor/python.html | 6 +- docs/sqlglot/executor/table.html | 2 +- docs/sqlglot/expressions.html | 16434 ++++++++++--------- docs/sqlglot/generator.html | 9048 +++++----- docs/sqlglot/helper.html | 2 +- docs/sqlglot/lineage.html | 4 +- docs/sqlglot/optimizer.html | 2 +- docs/sqlglot/optimizer/annotate_types.html | 2 +- docs/sqlglot/optimizer/canonicalize.html | 2 +- docs/sqlglot/optimizer/eliminate_ctes.html | 2 +- docs/sqlglot/optimizer/eliminate_joins.html | 2 +- docs/sqlglot/optimizer/eliminate_subqueries.html | 2 +- docs/sqlglot/optimizer/expand_laterals.html | 2 +- .../optimizer/expand_multi_table_selects.html | 2 +- docs/sqlglot/optimizer/isolate_table_selects.html | 2 +- docs/sqlglot/optimizer/lower_identities.html | 2 +- docs/sqlglot/optimizer/merge_subqueries.html | 2 +- docs/sqlglot/optimizer/normalize.html | 2 +- docs/sqlglot/optimizer/optimize_joins.html | 2 +- docs/sqlglot/optimizer/optimizer.html | 4 +- docs/sqlglot/optimizer/pushdown_predicates.html | 2 +- docs/sqlglot/optimizer/pushdown_projections.html | 2 +- docs/sqlglot/optimizer/qualify_columns.html | 1068 +- docs/sqlglot/optimizer/qualify_tables.html | 2 +- docs/sqlglot/optimizer/scope.html | 2 +- docs/sqlglot/optimizer/simplify.html | 4 +- docs/sqlglot/optimizer/unnest_subqueries.html | 2 +- docs/sqlglot/parser.html | 13732 ++++++++-------- docs/sqlglot/planner.html | 2 +- docs/sqlglot/schema.html | 2 +- docs/sqlglot/serde.html | 2 +- docs/sqlglot/time.html | 2 +- docs/sqlglot/tokens.html | 852 +- docs/sqlglot/transforms.html | 14 +- docs/sqlglot/trie.html | 2 +- sqlglot/__init__.py | 2 +- sqlglot/dataframe/sql/functions.py | 4 +- sqlglot/dialects/bigquery.py | 3 + sqlglot/dialects/clickhouse.py | 13 +- sqlglot/dialects/hive.py | 4 + sqlglot/dialects/mysql.py | 6 +- sqlglot/dialects/oracle.py | 2 - sqlglot/dialects/redshift.py | 3 - sqlglot/dialects/snowflake.py | 9 +- sqlglot/dialects/tsql.py | 2 + sqlglot/executor/env.py | 7 + sqlglot/expressions.py | 41 +- sqlglot/generator.py | 15 +- sqlglot/optimizer/qualify_columns.py | 21 +- sqlglot/optimizer/simplify.py | 5 +- sqlglot/parser.py | 96 +- sqlglot/tokens.py | 9 +- sqlglot/transforms.py | 4 +- tests/dialects/test_clickhouse.py | 1 + tests/dialects/test_dialect.py | 54 + tests/dialects/test_duckdb.py | 23 + tests/dialects/test_hive.py | 8 + tests/dialects/test_mysql.py | 35 + tests/dialects/test_presto.py | 10 + tests/dialects/test_redshift.py | 11 +- tests/dialects/test_snowflake.py | 15 +- tests/dialects/test_spark.py | 10 + tests/dialects/test_sqlite.py | 2 +- tests/dialects/test_tsql.py | 14 +- tests/fixtures/identity.sql | 3 + tests/fixtures/optimizer/optimizer.sql | 1 + tests/fixtures/optimizer/qualify_columns.sql | 22 +- tests/fixtures/optimizer/simplify.sql | 16 +- tests/fixtures/optimizer/tpc-ds/tpc-ds.sql | 16 +- tests/test_executor.py | 23 + tests/test_expressions.py | 40 +- tests/test_optimizer.py | 9 +- tests/test_tokens.py | 1 + 106 files changed, 25262 insertions(+), 24200 deletions(-) diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml index b73681a..8f7c01c 100644 --- a/.github/workflows/python-publish.yml +++ b/.github/workflows/python-publish.yml @@ -9,9 +9,9 @@ jobs: deploy: runs-on: ubuntu-latest steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v3 - name: Set up Python - uses: actions/setup-python@v2 + uses: actions/setup-python@v3 with: python-version: "3.10" - name: Install dependencies diff --git a/CHANGELOG.md b/CHANGELOG.md index be4a3a3..0209053 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,8 +1,51 @@ Changelog ========= +v11.5.0 +------ + +- Breaking/Improvement: replace_placeholders now uses exp.convert instead of exp.to_identifier. + +- New: Added support for the HLL aggregate function (Snowflake, Redshift). + +- New: Added support for MATCH ... AGAINST ... expression (MySQL). + +- New: Added TPC-DS in the test suite. + +- New: Added support for BigQuery's SELECT AS [STRUCT|VALUE] expression. + +- Improvement: Allow parsing `[]` for [nested types](https://github.com/tobymao/sqlglot/commit/709421aab7ef427619eb5feb95988a0f36792b84). + +- Improvement: [Normalize](https://github.com/tobymao/sqlglot/commit/58fdbf05f5e7627936ebf2036410c60396d6da72) keyword texts in the tokenizer. + +- Improvement: Parse DECODE function into CASE expression when it has >2 args. + +- Improvement: [Don't expand aliases in inner scopes](https://github.com/tobymao/sqlglot/commit/9a574b0e79e7532fd49929cf86396d4485091118). + +- Improvement: [Allow HAVING to alias selects](https://github.com/tobymao/sqlglot/commit/2b3eb31ca2ecb81a70bb462ff3987f0749a32d0e). + +- Improvement: Added support for the limit argument in Spark's SPLIT function. + +- Improvement: [Fix](https://github.com/tobymao/sqlglot/commit/68aea4ab95586723ed0c3d3ab0281577cc71e40c) related to expanding forward references in selects. + +- Improvement: Generate ->> for JSON_EXTRACT_SCALAR (MySQL). + +- Improvement: [Fix](https://github.com/tobymao/sqlglot/commit/68aea4ab95586723ed0c3d3ab0281577cc71e40c) related to expanding alias references in the WHERE clause. + +- Improvement: Fixed transpilation of some char types to Bigquery. + +- Improvement: [Map MAX to GREATEST conditionally for some dialects](https://github.com/tobymao/sqlglot/commit/27483e9f3b7f3043ba1b325d58aa864db54255f1). + +- Improvement: Make normalize default to CNF. + +- Improvement: Fixed star expansion when USING clause is present. + +- Improvement: Various performance improvements in the optimizer. + +- Improvement: Various simplifications in the executor (e.g. scan, join). + v11.4.0 -______ +------ - Breaking/Improvement: Canonicalization now only quotes when safe. diff --git a/README.md b/README.md index 21fb257..145d05c 100644 --- a/README.md +++ b/README.md @@ -435,6 +435,7 @@ user_id price See also: [Writing a Python SQL engine from scratch](https://github.com/tobymao/sqlglot/blob/main/posts/python_sql_engine.md). ## Used By +* [SQLMesh](https://github.com/TobikoData/sqlmesh) * [Fugue](https://github.com/fugue-project/fugue) * [ibis](https://github.com/ibis-project/ibis) * [mysql-mimic](https://github.com/kelsin/mysql-mimic) diff --git a/docs/search.js b/docs/search.js index d9608c9..ee20f45 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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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();o\"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='139664661722448'>], List[<MagicMock id='139664661722448'>], Tuple]],\tschema: Optional[<MagicMock id='139664663687136'>] = 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='139664666867024'>,\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='139664666468816'>] = 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='139664662140320'>,\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='139664662567456'>], <MagicMock id='139664662567456'>, 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='139664662120624'>],\t*cols: <MagicMock id='139664660651392'>) -> 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='139664664676480'>, 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='139664660714432'>, 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='139664661180336'>, 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='139664660985216'>],\tfunc_name: str,\t*args: Optional[<MagicMock id='139664660877840'>]) -> 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='139664660828688'>],\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='139664660803696'>,\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='139664661093472'>,\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='139664661278976'>, Iterable[<MagicMock id='139664661278976'>]]):", "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='139664661413264'>,\tupperBound: <MagicMock id='139664661467808'>) -> 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='139664661492640'>) -> 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='139664661620352'>, List[<MagicMock id='139664661620352'>]]) -> 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='139664661565392'>, List[<MagicMock id='139664661565392'>]]) -> 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='139664659914448'>, List[<MagicMock id='139664659914448'>]]) -> 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='139664659893216'>, List[<MagicMock id='139664659893216'>]]) -> 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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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": "(\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.tokenize": {"fullname": "sqlglot.dialects.dialect.Dialect.tokenize", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.tokenize", "kind": "function", "doc": "

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

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

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\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.date_trunc_to_time": {"fullname": "sqlglot.dialects.dialect.date_trunc_to_time", "modulename": "sqlglot.dialects.dialect", "qualname": "date_trunc_to_time", "kind": "function", "doc": "

\n", "signature": "(\targs: Sequence) -> sqlglot.expressions.DateTrunc | sqlglot.expressions.TimestampTrunc:", "funcdef": "def"}, "sqlglot.dialects.dialect.timestamptrunc_sql": {"fullname": "sqlglot.dialects.dialect.timestamptrunc_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "timestamptrunc_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.TimestampTrunc) -> str:", "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.max_or_greatest": {"fullname": "sqlglot.dialects.dialect.max_or_greatest", "modulename": "sqlglot.dialects.dialect", "qualname": "max_or_greatest", "kind": "function", "doc": "

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

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.CountIf) -> 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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.arrayagg_sql": {"fullname": "sqlglot.dialects.hive.Hive.Generator.arrayagg_sql", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.arrayagg_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ArrayAgg) -> str:", "funcdef": "def"}, "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: sqlglot.expressions.Properties) -> str:", "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: sqlglot.expressions.DataType) -> str:", "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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.cast_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.cast_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.cast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cast) -> str:", "funcdef": "def"}, "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.groupconcat_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.groupconcat_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.groupconcat_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: sqlglot.expressions.Least) -> str:", "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: sqlglot.expressions.Transaction) -> str:", "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.Parser": {"fullname": "sqlglot.dialects.starrocks.StarRocks.Parser", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks.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.mysql.MySQL.Parser"}, "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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.offset_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.offset_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.offset_sql", "kind": "function", "doc": "

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

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

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

Semantic Diff for SQL

\n\n

by Iaroslav Zeigerman

\n\n

Motivation

\n\n

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

\n\n

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

\n\n

Consider the following diff generated by Git:

\n\n

\"Git

\n\n

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

\n\n

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

\n\n

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

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

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

\n\n

The Search for a Solution

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

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

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

\n\n

Na\u00efve Brute-Force

\n\n

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

\n\n

Myers Algorithm

\n\n

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

\n\n

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

\n\n

Change Distiller

\n\n

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

\n\n

The algorithm consists of two high-level steps:

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

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

\n\n

Building the Matching Set

\n\n

Matching Leaves

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

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

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

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

The dice coefficient formula looks like following:

\n\n

\"Dice

\n\n

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

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

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

\n\n

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

\n\n

\"Matching

\n\n

The two nodes are matched if two conditions are met:

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

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

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

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

\n\n

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

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

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

\n\n

Matching Inner Nodes

\n\n

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

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

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

\n\n

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

\n\n

\"Matching

\n\n

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

\n\n

There are two additional heuristics associated with this matching criteria:

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

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

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

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

\n\n

Generating the Edit Script

\n\n

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

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

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

\n\n

The latter two cases are pretty straightforward to implement:

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

Traversing the matching set requires a little more thought:

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

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

\n\n

Now with this knowledge, the implementation becomes straightforward:

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

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

\n\n

Output

\n\n

The implemented algorithm produces the output that resembles the following:

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

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

\n\n

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

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

Optimizations

\n\n

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

\n\n

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

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

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

\n\n

Alternative Solutions

\n\n

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

\n\n

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

\n\n

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

\n\n

Conclusion

\n\n

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

\n\n

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

\n\n

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

\n\n

References

\n\n

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

\n\n

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

\n\n

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

\n\n

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

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

Indicates that a new node has been inserted

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

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

Indicates that an existing node has been removed

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

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

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

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

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

Indicates that an existing node has been updated

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

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

Indicates that an existing node hasn't been changed

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

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

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

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

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

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

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

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

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

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

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

An enumeration.

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

Ignore all errors.

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

Log all errors.

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

Collect all errors and raise a single exception.

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

Immediately raise an exception on the first error found.

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

Common base class for all non-exit exceptions.

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

Common base class for all non-exit exceptions.

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

Common base class for all non-exit exceptions.

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

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

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

Common base class for all non-exit exceptions.

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

Common base class for all non-exit exceptions.

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

Common base class for all non-exit exceptions.

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

Common base class for all non-exit exceptions.

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

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

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

Writing a Python SQL engine from scratch

\n\n

Toby Mao

\n\n

Introduction

\n\n

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

\n\n

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

\n\n\n\n

Why?

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

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

How?

\n\n

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

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

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

\n\n

Tokenizing

\n\n

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

\n\n

Running the SQLGlot tokenizer shows the output.

\n\n

\"Tokenizer

\n\n

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

\n\n

Parsing

\n\n

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

\n\n

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

\n\n

\"Parser

\n\n

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

\n\n

Optimizing

\n\n

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

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

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

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

  6. \n
\n\n

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

\n\n

\"Optimizer

\n\n

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

\n\n

Some example rules are:

\n\n

qualify_tables and qualify_columns

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

simplify

\n\n

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

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

normalize

\n\n

Attempts to convert all predicates into conjunctive normal form.

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

unnest_subqueries

\n\n

Converts subqueries in predicates into joins.

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

pushdown_predicates

\n\n

Push down filters into the innermost query.

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

annotate_types

\n\n

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

\n\n

Planning

\n\n

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

\n\n

Scan

\n\n

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

\n\n

Sort

\n\n

Sorts a table for order by expressions.

\n\n

Set

\n\n

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

\n\n

Aggregate

\n\n

Applies an aggregation/group by.

\n\n

Join

\n\n

Joins multiple tables together.

\n\n

\"Planner

\n\n

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

\n\n

Executing

\n\n

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

\n\n

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

\n\n

\"Executor

\n\n

What's next

\n\n

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

\n\n

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

\n\n

Special thanks

\n\n

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

\n\n

Get in touch

\n\n

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

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

Run a sql query against data.

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

Simple columnar data structure.

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

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Execution context for sql expressions.

\n\n

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

\n\n

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

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

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

\n\n

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

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

In which case all arguments are required.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.Python": {"fullname": "sqlglot.executor.python.Python", "modulename": "sqlglot.executor.python", "qualname": "Python", "kind": "class", "doc": "

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

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

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

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.iter_expressions": {"fullname": "sqlglot.expressions.Expression.iter_expressions", "modulename": "sqlglot.expressions", "qualname": "Expression.iter_expressions", "kind": "function", "doc": "

Yields the key and expression for all arguments, exploding list args.

\n", "signature": "(self) -> Iterator[Tuple[str, sqlglot.expressions.Expression]]:", "funcdef": "def"}, "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: 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: 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: 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.same_parent": {"fullname": "sqlglot.expressions.Expression.same_parent", "modulename": "sqlglot.expressions", "qualname": "Expression.same_parent", "kind": "variable", "doc": "

Returns if the parent is the same class as itself.

\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\n
Returns:
\n\n
\n

The popped expression.

\n
\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.Pragma": {"fullname": "sqlglot.expressions.Pragma", "modulename": "sqlglot.expressions", "qualname": "Pragma", "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.Column.parts": {"fullname": "sqlglot.expressions.Column.parts", "modulename": "sqlglot.expressions", "qualname": "Column.parts", "kind": "variable", "doc": "

Return the parts of a column in order catalog, db, table, name.

\n", "annotation": ": List[sqlglot.expressions.Identifier]"}, "sqlglot.expressions.Column.to_dot": {"fullname": "sqlglot.expressions.Column.to_dot", "modulename": "sqlglot.expressions", "qualname": "Column.to_dot", "kind": "function", "doc": "

Converts the column into a dot expression.

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

Create a DELETE expression or replace the table on an existing DELETE expression.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").sql()\n'DELETE FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • table: the table from which to delete.
  • \n
  • dialect: the dialect used to parse the input expression.
  • \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

Delete: the modified expression.

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

Append to or set the WHERE expressions.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").where("x = 'a' OR x < 'b'").sql()\n"DELETE FROM tbl WHERE x = 'a' OR x < 'b'"\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.\nMultiple expressions are combined with an AND operator.
  • \n
  • append: if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \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

Delete: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: Union[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.Delete:", "funcdef": "def"}, "sqlglot.expressions.Delete.returning": {"fullname": "sqlglot.expressions.Delete.returning", "modulename": "sqlglot.expressions", "qualname": "Delete.returning", "kind": "function", "doc": "

Set the RETURNING expression. Not supported by all dialects.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").returning("*", dialect="postgres").sql()\n'DELETE FROM tbl RETURNING *'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \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

Delete: the modified expression.

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

Build a Dot object with a sequence of expressions.

\n", "signature": "(\tself,\texpressions: Sequence[sqlglot.expressions.Expression]) -> sqlglot.expressions.Dot:", "funcdef": "def"}, "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.ToChar": {"fullname": "sqlglot.expressions.ToChar", "modulename": "sqlglot.expressions", "qualname": "ToChar", "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.CountIf": {"fullname": "sqlglot.expressions.CountIf", "modulename": "sqlglot.expressions", "qualname": "CountIf", "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.ExponentialTimeDecayedAvg": {"fullname": "sqlglot.expressions.ExponentialTimeDecayedAvg", "modulename": "sqlglot.expressions", "qualname": "ExponentialTimeDecayedAvg", "kind": "class", "doc": "

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

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

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

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

\n", "bases": "Expression"}, "sqlglot.expressions.JSONObject": {"fullname": "sqlglot.expressions.JSONObject", "modulename": "sqlglot.expressions", "qualname": "JSONObject", "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.LogicalAnd": {"fullname": "sqlglot.expressions.LogicalAnd", "modulename": "sqlglot.expressions", "qualname": "LogicalAnd", "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: Union[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: Union[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: dictionary of properties to set which are\nauto converted to sql objects eg None -> NULL
  • \n
  • where: sql conditional parsed into a WHERE statement
  • \n
  • from_: sql statement parsed into a FROM statement
  • \n
  • dialect: 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: str | sqlglot.expressions.Table,\tproperties: dict,\twhere: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tfrom_: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = 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: sql conditional parsed into a WHERE statement
  • \n
  • returning: sql conditional parsed into a RETURNING statement
  • \n
  • dialect: 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": "(\ttable: Union[str, sqlglot.expressions.Expression],\twhere: Union[str, sqlglot.expressions.Expression, NoneType] = None,\treturning: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**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: Union[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
  • db: db name
  • \n
  • catalog: catalog 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,\tdb: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tcatalog: 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: Union[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, *args, **kwargs):", "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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 cache: an optional sql string cache. this leverages the hash of an expression which is slow, so only use this if you set _hash on each node.

\n\n

Returns\n the SQL string.

\n", "signature": "(\tself,\texpression: Optional[sqlglot.expressions.Expression],\tcache: Optional[Dict[int, str]] = None) -> 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": "

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\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.generator.Generator.tochar_sql": {"fullname": "sqlglot.generator.Generator.tochar_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tochar_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ToChar) -> 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: sqlglot.expressions.Expression,\tfunc: Callable[[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.helper.should_identify": {"fullname": "sqlglot.helper.should_identify", "modulename": "sqlglot.helper", "qualname": "should_identify", "kind": "function", "doc": "

Checks if text should be identified given an identify option.

\n\n
Arguments:
\n\n
    \n
  • text: the text to check.
  • \n
  • identify: \"always\" | True - always returns true, \"safe\" - true if no upper case
  • \n
\n\n
Returns:
\n\n
\n

Whether or not a string should be identified.

\n
\n", "signature": "(text: str, identify: str | bool) -> bool:", "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 0x7f0637f3fa30>, <function qualify_columns at 0x7f0637f3e950>, <function expand_laterals at 0x7f0637f3d000>),\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
  • identify: Whether or not to force identify identifier.
  • \n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tidentify: str = 'safe') -> 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.canonicalize.ensure_bool_predicates": {"fullname": "sqlglot.optimizer.canonicalize.ensure_bool_predicates", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "ensure_bool_predicates", "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 or disjunctive normal form.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("(x AND y) OR z")\n>>> normalize(expression, dnf=False).sql()\n'(x OR z) AND (y OR z)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: expression to normalize
  • \n
  • dnf: rewrite in disjunctive normal form instead.
  • \n
  • max_distance (int): the maximal estimated distance from cnf/dnf to attempt conversion
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: normalized expression

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tdnf: bool = False,\tmax_distance: int = 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, cache=None):", "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 0x7f0637f3d360>, <function qualify_tables at 0x7f0637f3fa30>, <function isolate_table_selects at 0x7f0637f3d240>, <function qualify_columns at 0x7f0637f3e950>, <function expand_laterals at 0x7f0637f3d000>, <function pushdown_projections at 0x7f0637f3f400>, <function validate_qualify_columns at 0x7f0637f3e9e0>, <function normalize at 0x7f0637eeae60>, <function unnest_subqueries at 0x7f0637f3fb50>, <function expand_multi_table_selects at 0x7f0637f3d1b0>, <function pushdown_predicates at 0x7f0637f3e4d0>, <function optimize_joins at 0x7f0637f3e0e0>, <function eliminate_subqueries at 0x7f0637f3cc10>, <function merge_subqueries at 0x7f0637f3d630>, <function eliminate_joins at 0x7f0637eead40>, <function eliminate_ctes at 0x7f0637eeac20>, <function annotate_types at 0x7f0637ec7490>, <function canonicalize at 0x7f0637eea680>, <function simplify at 0x7f0637eeaf80>),\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, root=True):", "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, root=True):", "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, cache=None, root=True):", "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, root=True):", "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, root=True):", "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.is_false": {"fullname": "sqlglot.optimizer.simplify.is_false", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_false", "kind": "function", "doc": "

\n", "signature": "(a: sqlglot.expressions.Expression) -> bool:", "funcdef": "def"}, "sqlglot.optimizer.simplify.is_null": {"fullname": "sqlglot.optimizer.simplify.is_null", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_null", "kind": "function", "doc": "

\n", "signature": "(a: sqlglot.expressions.Expression) -> bool:", "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: Sequence) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.parser.parse_like": {"fullname": "sqlglot.parser.parse_like", "modulename": "sqlglot.parser", "qualname": "parse_like", "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": "(\tschema: Any,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> 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": "

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\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.eliminate_qualify": {"fullname": "sqlglot.transforms.eliminate_qualify", "modulename": "sqlglot.transforms", "qualname": "eliminate_qualify", "kind": "function", "doc": "

Convert SELECT statements that contain the QUALIFY clause into subqueries, filtered equivalently.

\n\n

The idea behind this transformation can be seen in Snowflake's documentation for QUALIFY:\nhttps://docs.snowflake.com/en/sql-reference/constructs/qualify

\n\n

Some dialects don't support window functions in the WHERE clause, so we need to include them as\nprojections in the subquery, in order to refer to them in the outer filter using aliases. Also,\nif a column is referenced in the QUALIFY clause but is not selected, we need to include it too,\notherwise we won't be able to refer to it in the outer query's WHERE clause.

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

Some dialects only allow the precision for parameterized types to be defined in the DDL and not in other expressions.\nThis transforms removes the precision from parameterized types in expressions.

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

Creates a new transform by chaining a sequence of transformations and converts the resulting\nexpression to SQL, using an appropriate Generator.TRANSFORMS function.

\n\n
Arguments:
\n\n
    \n
  • transforms: sequence of transform functions. These will be called in order.
  • \n
  • to_sql: final transform that converts the resulting expression to a SQL string.
  • \n
\n\n
Returns:
\n\n
\n

Function that can be used as a generator transform.

\n
\n", "signature": "(\ttransforms: List[Callable[[sqlglot.expressions.Expression], sqlglot.expressions.Expression]],\tto_sql: Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]) -> Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]:", "funcdef": "def"}, "sqlglot.transforms.delegate": {"fullname": "sqlglot.transforms.delegate", "modulename": "sqlglot.transforms", "qualname": "delegate", "kind": "function", "doc": "

Create a new method that delegates to attr. This is useful for creating Generator.TRANSFORMS\nfunctions that delegate to existing generator methods.

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

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

Creates a new trie out of a collection of keywords.

\n\n

The trie is represented as a sequence of nested dictionaries keyed by either single character\nstrings, or by 0, which is used to designate that a keyword is in the trie.

\n\n
Example:
\n\n
\n
\n
>>> new_trie(["bla", "foo", "blab"])\n{'b': {'l': {'a': {0: True, 'b': {0: True}}}}, 'f': {'o': {'o': {0: True}}}}\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • keywords: the keywords to create the trie from.
  • \n
\n\n
Returns:
\n\n
\n

The trie corresponding to keywords.

\n
\n", "signature": "(keywords: Iterable[Sequence[Hashable]]) -> Dict:", "funcdef": "def"}, "sqlglot.trie.in_trie": {"fullname": "sqlglot.trie.in_trie", "modulename": "sqlglot.trie", "qualname": "in_trie", "kind": "function", "doc": "

Checks whether a key is in a trie.

\n\n
Examples:
\n\n
\n
\n
>>> in_trie(new_trie(["cat"]), "bob")\n(0, {'c': {'a': {'t': {0: True}}}})\n
\n
\n \n
\n
>>> in_trie(new_trie(["cat"]), "ca")\n(1, {'t': {0: True}})\n
\n
\n \n
\n
>>> in_trie(new_trie(["cat"]), "cat")\n(2, {0: True})\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • trie: the trie to be searched.
  • \n
  • key: the target key.
  • \n
\n\n
Returns:
\n\n
\n

A pair (value, subtrie), where subtrie is the sub-trie we get at the point where the search stops, and value\n is either 0 (search was unsuccessful), 1 (value is a prefix of a keyword in trie) or 2 (key is intrie`).

\n
\n", "signature": "(trie: Dict, key: Sequence[Hashable]) -> Tuple[int, Dict]:", "funcdef": "def"}}, "docInfo": {"sqlglot": {"qualname": 0, "fullname": 1, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 5686}, "sqlglot.pretty": {"qualname": 1, "fullname": 2, "annotation": 0, "default_value": 1, "signature": 0, "bases": 0, "doc": 10}, "sqlglot.schema": {"qualname": 0, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 3}, "sqlglot.parse": {"qualname": 1, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 124, "bases": 0, "doc": 84}, "sqlglot.parse_one": {"qualname": 2, "fullname": 3, "annotation": 0, "default_value": 0, "signature": 198, "bases": 0, "doc": 99}, "sqlglot.transpile": {"qualname": 1, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 239, "bases": 0, "doc": 177}, "sqlglot.dataframe": {"qualname": 0, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 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"sqlglot.parser.Parser.expression": {"tf": 1}}, "df": 28}}}}}}}}}, "pipeline": ["trimmer"], "_isPrebuiltIndex": true}; + /** pdoc search index */const docs = {"version": "0.9.5", "fields": ["qualname", "fullname", "annotation", "default_value", "signature", "bases", "doc"], "ref": "fullname", "documentStore": {"docs": {"sqlglot": {"fullname": "sqlglot", "modulename": "sqlglot", "kind": "module", "doc": "

\"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:

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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

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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

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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:

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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

\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.

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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='139719846869552'>], List[<MagicMock id='139719846869552'>], Tuple]],\tschema: Optional[<MagicMock id='139719847382416'>] = 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='139719851707024'>,\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='139719851535440'>] = 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='139719847202288'>,\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='139719846105664'>], <MagicMock id='139719846105664'>, 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": "

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

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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

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\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='139719844913712'>, List[<MagicMock id='139719844913712'>]]) -> 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='139719844813248'>, List[<MagicMock id='139719844813248'>]]) -> 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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.

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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.

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\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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.arrayagg_sql": {"fullname": "sqlglot.dialects.hive.Hive.Generator.arrayagg_sql", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.arrayagg_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ArrayAgg) -> str:", "funcdef": "def"}, "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: sqlglot.expressions.Properties) -> str:", "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: sqlglot.expressions.DataType) -> str:", "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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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: sqlglot.expressions.Show) -> str:", "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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.cast_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.cast_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.cast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cast) -> str:", "funcdef": "def"}, "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.groupconcat_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.groupconcat_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.groupconcat_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: sqlglot.expressions.Least) -> str:", "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: sqlglot.expressions.Transaction) -> str:", "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.Parser": {"fullname": "sqlglot.dialects.starrocks.StarRocks.Parser", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks.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.mysql.MySQL.Parser"}, "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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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.offset_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.offset_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.offset_sql", "kind": "function", "doc": "

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

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

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

Semantic Diff for SQL

\n\n

by Iaroslav Zeigerman

\n\n

Motivation

\n\n

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

\n\n

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

\n\n

Consider the following diff generated by Git:

\n\n

\"Git

\n\n

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

\n\n

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

\n\n

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

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

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

\n\n

The Search for a Solution

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

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

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

\n\n

Na\u00efve Brute-Force

\n\n

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

\n\n

Myers Algorithm

\n\n

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

\n\n

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

\n\n

Change Distiller

\n\n

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

\n\n

The algorithm consists of two high-level steps:

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

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

\n\n

Building the Matching Set

\n\n

Matching Leaves

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

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

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

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

The dice coefficient formula looks like following:

\n\n

\"Dice

\n\n

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

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

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

\n\n

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

\n\n

\"Matching

\n\n

The two nodes are matched if two conditions are met:

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

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

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

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

\n\n

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

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

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

\n\n

Matching Inner Nodes

\n\n

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

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

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

\n\n

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

\n\n

\"Matching

\n\n

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

\n\n

There are two additional heuristics associated with this matching criteria:

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

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

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

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

\n\n

Generating the Edit Script

\n\n

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

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

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

\n\n

The latter two cases are pretty straightforward to implement:

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

Traversing the matching set requires a little more thought:

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

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

\n\n

Now with this knowledge, the implementation becomes straightforward:

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

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

\n\n

Output

\n\n

The implemented algorithm produces the output that resembles the following:

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

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

\n\n

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

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

Optimizations

\n\n

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

\n\n

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

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

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

\n\n

Alternative Solutions

\n\n

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

\n\n

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

\n\n

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

\n\n

Conclusion

\n\n

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

\n\n

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

\n\n

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

\n\n

References

\n\n

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

\n\n

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

\n\n

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

\n\n

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

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

Indicates that a new node has been inserted

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

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

Indicates that an existing node has been removed

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

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

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

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

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

Indicates that an existing node has been updated

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

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

Indicates that an existing node hasn't been changed

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

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

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

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

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

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

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

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

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

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

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

An enumeration.

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

Ignore all errors.

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

Log all errors.

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

Collect all errors and raise a single exception.

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

Immediately raise an exception on the first error found.

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

Common base class for all non-exit exceptions.

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

Common base class for all non-exit exceptions.

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

Common base class for all non-exit exceptions.

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

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

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

Common base class for all non-exit exceptions.

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

Common base class for all non-exit exceptions.

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

Common base class for all non-exit exceptions.

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

Common base class for all non-exit exceptions.

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

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

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

Writing a Python SQL engine from scratch

\n\n

Toby Mao

\n\n

Introduction

\n\n

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

\n\n

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

\n\n\n\n

Why?

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

\n\n

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

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

How?

\n\n

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

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

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

\n\n

Tokenizing

\n\n

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

\n\n

Running the SQLGlot tokenizer shows the output.

\n\n

\"Tokenizer

\n\n

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

\n\n

Parsing

\n\n

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

\n\n

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

\n\n

\"Parser

\n\n

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

\n\n

Optimizing

\n\n

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

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

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

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

  6. \n
\n\n

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

\n\n

\"Optimizer

\n\n

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

\n\n

Some example rules are:

\n\n

qualify_tables and qualify_columns

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

simplify

\n\n

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

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

normalize

\n\n

Attempts to convert all predicates into conjunctive normal form.

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

unnest_subqueries

\n\n

Converts subqueries in predicates into joins.

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

pushdown_predicates

\n\n

Push down filters into the innermost query.

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

annotate_types

\n\n

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

\n\n

Planning

\n\n

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

\n\n

Scan

\n\n

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

\n\n

Sort

\n\n

Sorts a table for order by expressions.

\n\n

Set

\n\n

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

\n\n

Aggregate

\n\n

Applies an aggregation/group by.

\n\n

Join

\n\n

Joins multiple tables together.

\n\n

\"Planner

\n\n

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

\n\n

Executing

\n\n

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

\n\n

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

\n\n

\"Executor

\n\n

What's next

\n\n

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

\n\n

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

\n\n

Special thanks

\n\n

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

\n\n

Get in touch

\n\n

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

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

Run a sql query against data.

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

Simple columnar data structure.

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

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Execution context for sql expressions.

\n\n

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

\n\n

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

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

\n\n

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

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

In which case all arguments are required.

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

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

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

Yields the key and expression for all arguments, exploding list args.

\n", "signature": "(self) -> Iterator[Tuple[str, sqlglot.expressions.Expression]]:", "funcdef": "def"}, "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: 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: 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: 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.same_parent": {"fullname": "sqlglot.expressions.Expression.same_parent", "modulename": "sqlglot.expressions", "qualname": "Expression.same_parent", "kind": "variable", "doc": "

Returns if the parent is the same class as itself.

\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\n
Returns:
\n\n
\n

The popped expression.

\n
\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.Pragma": {"fullname": "sqlglot.expressions.Pragma", "modulename": "sqlglot.expressions", "qualname": "Pragma", "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.Column.parts": {"fullname": "sqlglot.expressions.Column.parts", "modulename": "sqlglot.expressions", "qualname": "Column.parts", "kind": "variable", "doc": "

Return the parts of a column in order catalog, db, table, name.

\n", "annotation": ": List[sqlglot.expressions.Identifier]"}, "sqlglot.expressions.Column.to_dot": {"fullname": "sqlglot.expressions.Column.to_dot", "modulename": "sqlglot.expressions", "qualname": "Column.to_dot", "kind": "function", "doc": "

Converts the column into a dot expression.

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

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

Create a DELETE expression or replace the table on an existing DELETE expression.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").sql()\n'DELETE FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • table: the table from which to delete.
  • \n
  • dialect: the dialect used to parse the input expression.
  • \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

Delete: the modified expression.

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

Append to or set the WHERE expressions.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").where("x = 'a' OR x < 'b'").sql()\n"DELETE FROM tbl WHERE x = 'a' OR x < 'b'"\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.\nMultiple expressions are combined with an AND operator.
  • \n
  • append: if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \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

Delete: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: Union[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.Delete:", "funcdef": "def"}, "sqlglot.expressions.Delete.returning": {"fullname": "sqlglot.expressions.Delete.returning", "modulename": "sqlglot.expressions", "qualname": "Delete.returning", "kind": "function", "doc": "

Set the RETURNING expression. Not supported by all dialects.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").returning("*", dialect="postgres").sql()\n'DELETE FROM tbl RETURNING *'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \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

Delete: the modified expression.

\n
\n", "signature": "(\tself,\texpression: Union[str, sqlglot.expressions.Expression],\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "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: Union[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: Union[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": "

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\n", "signature": "(\tself,\texpressions: Sequence[sqlglot.expressions.Expression]) -> sqlglot.expressions.Dot:", "funcdef": "def"}, "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.Hll": {"fullname": "sqlglot.expressions.Hll", "modulename": "sqlglot.expressions", "qualname": "Hll", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "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.ToChar": {"fullname": "sqlglot.expressions.ToChar", "modulename": "sqlglot.expressions", "qualname": "ToChar", "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.CountIf": {"fullname": "sqlglot.expressions.CountIf", "modulename": "sqlglot.expressions", "qualname": "CountIf", "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.ExponentialTimeDecayedAvg": {"fullname": "sqlglot.expressions.ExponentialTimeDecayedAvg", "modulename": "sqlglot.expressions", "qualname": "ExponentialTimeDecayedAvg", "kind": "class", "doc": "

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

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

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

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

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

\n", "bases": "Func"}, "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.LogicalAnd": {"fullname": "sqlglot.expressions.LogicalAnd", "modulename": "sqlglot.expressions", "qualname": "LogicalAnd", "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.MatchAgainst": {"fullname": "sqlglot.expressions.MatchAgainst", "modulename": "sqlglot.expressions", "qualname": "MatchAgainst", "kind": "class", "doc": "

\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: Union[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: Union[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: dictionary of properties to set which are\nauto converted to sql objects eg None -> NULL
  • \n
  • where: sql conditional parsed into a WHERE statement
  • \n
  • from_: sql statement parsed into a FROM statement
  • \n
  • dialect: 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: str | sqlglot.expressions.Table,\tproperties: dict,\twhere: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tfrom_: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = 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: sql conditional parsed into a WHERE statement
  • \n
  • returning: sql conditional parsed into a RETURNING statement
  • \n
  • dialect: 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": "(\ttable: Union[str, sqlglot.expressions.Expression],\twhere: Union[str, sqlglot.expressions.Expression, NoneType] = None,\treturning: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**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: Union[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
  • db: db name
  • \n
  • catalog: catalog 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,\tdb: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tcatalog: 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: Union[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, *args, **kwargs):", "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 ? = ?"),\n...     exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo")\n... ).sql()\n"SELECT * FROM foo WHERE str_col = '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 | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \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 cache: an optional sql string cache. this leverages the hash of an expression which is slow, so only use this if you set _hash on each node.

\n\n

Returns\n the SQL string.

\n", "signature": "(\tself,\texpression: Optional[sqlglot.expressions.Expression],\tcache: Optional[Dict[int, str]] = None) -> 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.columnposition_sql": {"fullname": "sqlglot.generator.Generator.columnposition_sql", "modulename": "sqlglot.generator", "qualname": "Generator.columnposition_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ColumnPosition) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.columndef_sql": {"fullname": "sqlglot.generator.Generator.columndef_sql", "modulename": "sqlglot.generator", "qualname": "Generator.columndef_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ColumnDef) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.columnconstraint_sql": {"fullname": "sqlglot.generator.Generator.columnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.columnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.autoincrementcolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.autoincrementcolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.autoincrementcolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, _) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.compresscolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.compresscolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.compresscolumnconstraint_sql", "kind": "function", "doc": "

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

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

\n", "signature": "(self, expression: sqlglot.expressions.NotNullColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.primarykeycolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.primarykeycolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.primarykeycolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.PrimaryKeyColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.uniquecolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.uniquecolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.uniquecolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, _) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.create_sql": {"fullname": "sqlglot.generator.Generator.create_sql", "modulename": "sqlglot.generator", "qualname": "Generator.create_sql", "kind": "function", "doc": "

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

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

\n", "signature": "(self, expression: sqlglot.expressions.Expression, sql: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.with_sql": {"fullname": "sqlglot.generator.Generator.with_sql", "modulename": "sqlglot.generator", "qualname": "Generator.with_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.With) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.cte_sql": {"fullname": "sqlglot.generator.Generator.cte_sql", "modulename": "sqlglot.generator", "qualname": "Generator.cte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CTE) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.tablealias_sql": {"fullname": "sqlglot.generator.Generator.tablealias_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tablealias_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.TableAlias) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.bitstring_sql": {"fullname": "sqlglot.generator.Generator.bitstring_sql", "modulename": "sqlglot.generator", "qualname": "Generator.bitstring_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.BitString) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.hexstring_sql": {"fullname": "sqlglot.generator.Generator.hexstring_sql", "modulename": "sqlglot.generator", "qualname": "Generator.hexstring_sql", "kind": "function", "doc": "

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

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

\n", "signature": "(self, expression: sqlglot.expressions.Directory) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.delete_sql": {"fullname": "sqlglot.generator.Generator.delete_sql", "modulename": "sqlglot.generator", "qualname": "Generator.delete_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Delete) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.drop_sql": {"fullname": "sqlglot.generator.Generator.drop_sql", "modulename": "sqlglot.generator", "qualname": "Generator.drop_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Drop) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.except_sql": {"fullname": "sqlglot.generator.Generator.except_sql", "modulename": "sqlglot.generator", "qualname": "Generator.except_sql", "kind": "function", "doc": "

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

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

\n", "signature": "(self, expression: sqlglot.expressions.Fetch) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.filter_sql": {"fullname": "sqlglot.generator.Generator.filter_sql", "modulename": "sqlglot.generator", "qualname": "Generator.filter_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Filter) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.hint_sql": {"fullname": "sqlglot.generator.Generator.hint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.hint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Hint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.index_sql": {"fullname": "sqlglot.generator.Generator.index_sql", "modulename": "sqlglot.generator", "qualname": "Generator.index_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Index) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.identifier_sql": {"fullname": "sqlglot.generator.Generator.identifier_sql", "modulename": "sqlglot.generator", "qualname": "Generator.identifier_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Identifier) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.national_sql": {"fullname": "sqlglot.generator.Generator.national_sql", "modulename": "sqlglot.generator", "qualname": "Generator.national_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.National) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.partition_sql": {"fullname": "sqlglot.generator.Generator.partition_sql", "modulename": "sqlglot.generator", "qualname": "Generator.partition_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Partition) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.properties_sql": {"fullname": "sqlglot.generator.Generator.properties_sql", "modulename": "sqlglot.generator", "qualname": "Generator.properties_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.root_properties": {"fullname": "sqlglot.generator.Generator.root_properties", "modulename": "sqlglot.generator", "qualname": "Generator.root_properties", "kind": "function", "doc": "

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

\n", "signature": "(\tself,\tproperties: sqlglot.expressions.Properties,\tprefix: str = '',\tsep: str = ', ',\tsuffix: str = '',\twrapped: bool = True) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.with_properties": {"fullname": "sqlglot.generator.Generator.with_properties", "modulename": "sqlglot.generator", "qualname": "Generator.with_properties", "kind": "function", "doc": "

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\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": "

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\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.generator.Generator.tochar_sql": {"fullname": "sqlglot.generator.Generator.tochar_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tochar_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ToChar) -> 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: sqlglot.expressions.Expression,\tfunc: Callable[[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.helper.should_identify": {"fullname": "sqlglot.helper.should_identify", "modulename": "sqlglot.helper", "qualname": "should_identify", "kind": "function", "doc": "

Checks if text should be identified given an identify option.

\n\n
Arguments:
\n\n
    \n
  • text: the text to check.
  • \n
  • identify: \"always\" | True - always returns true, \"safe\" - true if no upper case
  • \n
\n\n
Returns:
\n\n
\n

Whether or not a string should be identified.

\n
\n", "signature": "(text: str, identify: str | bool) -> bool:", "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 0x7f1311384310>, <function qualify_columns at 0x7f13113b71c0>, <function expand_laterals at 0x7f13113b5870>),\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
  • identify: Whether or not to force identify identifier.
  • \n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tidentify: str = 'safe') -> 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.canonicalize.ensure_bool_predicates": {"fullname": "sqlglot.optimizer.canonicalize.ensure_bool_predicates", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "ensure_bool_predicates", "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 or disjunctive normal form.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("(x AND y) OR z")\n>>> normalize(expression, dnf=False).sql()\n'(x OR z) AND (y OR z)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: expression to normalize
  • \n
  • dnf: rewrite in disjunctive normal form instead.
  • \n
  • max_distance (int): the maximal estimated distance from cnf/dnf to attempt conversion
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: normalized expression

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tdnf: bool = False,\tmax_distance: int = 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, cache=None):", "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 0x7f13113b5bd0>, <function qualify_tables at 0x7f1311384310>, <function isolate_table_selects at 0x7f13113b5ab0>, <function qualify_columns at 0x7f13113b71c0>, <function expand_laterals at 0x7f13113b5870>, <function pushdown_projections at 0x7f13113b7c70>, <function validate_qualify_columns at 0x7f13113b7250>, <function normalize at 0x7f13113976d0>, <function unnest_subqueries at 0x7f1311384430>, <function expand_multi_table_selects at 0x7f13113b5a20>, <function pushdown_predicates at 0x7f13113b6d40>, <function optimize_joins at 0x7f13113b6950>, <function eliminate_subqueries at 0x7f13113b5480>, <function merge_subqueries at 0x7f13113b5ea0>, <function eliminate_joins at 0x7f13113975b0>, <function eliminate_ctes at 0x7f1311397490>, <function annotate_types at 0x7f1311343d00>, <function canonicalize at 0x7f1311396ef0>, <function simplify at 0x7f13113977f0>),\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, root=True):", "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, root=True):", "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, cache=None, root=True):", "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, root=True):", "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, root=True):", "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.is_false": {"fullname": "sqlglot.optimizer.simplify.is_false", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_false", "kind": "function", "doc": "

\n", "signature": "(a: sqlglot.expressions.Expression) -> bool:", "funcdef": "def"}, "sqlglot.optimizer.simplify.is_null": {"fullname": "sqlglot.optimizer.simplify.is_null", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_null", "kind": "function", "doc": "

\n", "signature": "(a: sqlglot.expressions.Expression) -> bool:", "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: Sequence) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.parser.parse_like": {"fullname": "sqlglot.parser.parse_like", "modulename": "sqlglot.parser", "qualname": "parse_like", "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": "(\tschema: Any,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> 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": "

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

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

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

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

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

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

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

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

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

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

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

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

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

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\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.eliminate_qualify": {"fullname": "sqlglot.transforms.eliminate_qualify", "modulename": "sqlglot.transforms", "qualname": "eliminate_qualify", "kind": "function", "doc": "

Convert SELECT statements that contain the QUALIFY clause into subqueries, filtered equivalently.

\n\n

The idea behind this transformation can be seen in Snowflake's documentation for QUALIFY:\nhttps://docs.snowflake.com/en/sql-reference/constructs/qualify

\n\n

Some dialects don't support window functions in the WHERE clause, so we need to include them as\nprojections in the subquery, in order to refer to them in the outer filter using aliases. Also,\nif a column is referenced in the QUALIFY clause but is not selected, we need to include it too,\notherwise we won't be able to refer to it in the outer query's WHERE clause.

\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\nother expressions. This 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.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 9c719f7..bca466c 100644 --- a/docs/sqlglot.html +++ b/docs/sqlglot.html @@ -3,7 +3,7 @@ - + sqlglot API documentation @@ -698,7 +698,7 @@ 47 T = t.TypeVar("T", bound=Expression) 48 49 - 50__version__ = "11.4.4" + 50__version__ = "11.5.1" 51 52pretty = False 53"""Whether to format generated SQL by default.""" diff --git a/docs/sqlglot/dataframe.html b/docs/sqlglot/dataframe.html index b0fa431..e042de2 100644 --- a/docs/sqlglot/dataframe.html +++ b/docs/sqlglot/dataframe.html @@ -3,7 +3,7 @@ - + sqlglot.dataframe API documentation diff --git a/docs/sqlglot/dataframe/sql.html b/docs/sqlglot/dataframe/sql.html index b64e56b..9fd995a 100644 --- a/docs/sqlglot/dataframe/sql.html +++ b/docs/sqlglot/dataframe/sql.html @@ -3,7 +3,7 @@ - + sqlglot.dataframe.sql API documentation @@ -608,7 +608,7 @@
def - createDataFrame( self, data: Sequence[Union[Dict[str, <MagicMock id='139664661722448'>], List[<MagicMock id='139664661722448'>], Tuple]], schema: Optional[<MagicMock id='139664663687136'>] = None, samplingRatio: Optional[float] = None, verifySchema: bool = False) -> sqlglot.dataframe.sql.DataFrame: + createDataFrame( self, data: Sequence[Union[Dict[str, <MagicMock id='139719846869552'>], List[<MagicMock id='139719846869552'>], Tuple]], schema: Optional[<MagicMock id='139719847382416'>] = None, samplingRatio: Optional[float] = None, verifySchema: bool = False) -> sqlglot.dataframe.sql.DataFrame: @@ -1476,7 +1476,7 @@
- DataFrame( spark: <MagicMock id='139664666867024'>, 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='139664666468816'>] = None, **kwargs) + DataFrame( spark: <MagicMock id='139719851707024'>, 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='139719851535440'>] = None, **kwargs) @@ -2214,7 +2214,7 @@ is unlikely to come up.

@operation(Operation.FROM)
def - fillna( self, value: <MagicMock id='139664662140320'>, subset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.DataFrame: + fillna( self, value: <MagicMock id='139719847202288'>, 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='139664662567456'>], <MagicMock id='139664662567456'>, 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='139719846105664'>], <MagicMock id='139719846105664'>, 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='139664662120624'>], *cols: <MagicMock id='139664660651392'>) -> sqlglot.dataframe.sql.DataFrame: + repartition( self, numPartitions: Union[int, <MagicMock id='139719845685008'>], *cols: <MagicMock id='139719845795232'>) -> 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='139664664676480'>, sqlglot.expressions.Expression, NoneType]) + Column( expression: Union[<MagicMock id='139719847713120'>, 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='139664660714432'>, sqlglot.expressions.Expression, NoneType]): + ensure_col( cls, value: Union[<MagicMock id='139719845612224'>, 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='139664661180336'>, sqlglot.expressions.Expression]]) -> List[sqlglot.dataframe.sql.Column]: + ensure_cols( cls, args: List[Union[<MagicMock id='139719846275024'>, 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='139664660985216'>], func_name: str, *args: Optional[<MagicMock id='139664660877840'>]) -> sqlglot.dataframe.sql.Column: + invoke_anonymous_function( cls, column: Optional[<MagicMock id='139719846030752'>], func_name: str, *args: Optional[<MagicMock id='139719845950944'>]) -> 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='139664660828688'>], callable_expression: Callable, **kwargs) -> sqlglot.dataframe.sql.Column: + invoke_expression_over_column( cls, column: Optional[<MagicMock id='139719845906896'>], 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='139664660803696'>, **kwargs) -> sqlglot.dataframe.sql.Column: + binary_op( self, klass: Callable, other: <MagicMock id='139719845931152'>, **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='139664661093472'>, **kwargs) -> sqlglot.dataframe.sql.Column: + inverse_binary_op( self, klass: Callable, other: <MagicMock id='139719845815168'>, **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='139664661278976'>, Iterable[<MagicMock id='139664661278976'>]]): + isin( self, *cols: Union[<MagicMock id='139719846379728'>, Iterable[<MagicMock id='139719846379728'>]]): @@ -3842,7 +3842,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - between( self, lowerBound: <MagicMock id='139664661413264'>, upperBound: <MagicMock id='139664661467808'>) -> sqlglot.dataframe.sql.Column: + between( self, lowerBound: <MagicMock id='139719846507952'>, upperBound: <MagicMock id='139719844481728'>) -> 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='139664661492640'>) -> sqlglot.dataframe.sql.Column: + over( self, window: <MagicMock id='139719844522944'>) -> 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='139664661620352'>, List[<MagicMock id='139664661620352'>]]) -> sqlglot.dataframe.sql.WindowSpec: + partitionBy( cls, *cols: Union[<MagicMock id='139719845053776'>, List[<MagicMock id='139719845053776'>]]) -> 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='139664661565392'>, List[<MagicMock id='139664661565392'>]]) -> sqlglot.dataframe.sql.WindowSpec: + orderBy( cls, *cols: Union[<MagicMock id='139719844989536'>, List[<MagicMock id='139719844989536'>]]) -> 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='139664659914448'>, List[<MagicMock id='139664659914448'>]]) -> sqlglot.dataframe.sql.WindowSpec: + partitionBy( self, *cols: Union[<MagicMock id='139719844913712'>, List[<MagicMock id='139719844913712'>]]) -> 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='139664659893216'>, List[<MagicMock id='139664659893216'>]]) -> sqlglot.dataframe.sql.WindowSpec: + orderBy( self, *cols: Union[<MagicMock id='139719844813248'>, List[<MagicMock id='139719844813248'>]]) -> sqlglot.dataframe.sql.WindowSpec: diff --git a/docs/sqlglot/dialects.html b/docs/sqlglot/dialects.html index 8c8b57f..8ec3beb 100644 --- a/docs/sqlglot/dialects.html +++ b/docs/sqlglot/dialects.html @@ -3,7 +3,7 @@ - + sqlglot.dialects API documentation diff --git a/docs/sqlglot/dialects/bigquery.html b/docs/sqlglot/dialects/bigquery.html index 7a0daa5..c1b1dce 100644 --- a/docs/sqlglot/dialects/bigquery.html +++ b/docs/sqlglot/dialects/bigquery.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.bigquery API documentation @@ -313,98 +313,104 @@ 213 ), 214 } 215 -216 class Generator(generator.Generator): -217 TRANSFORMS = { -218 **generator.Generator.TRANSFORMS, # type: ignore -219 **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES, # type: ignore -220 exp.ArraySize: rename_func("ARRAY_LENGTH"), -221 exp.DateAdd: _date_add_sql("DATE", "ADD"), -222 exp.DateSub: _date_add_sql("DATE", "SUB"), -223 exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"), -224 exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"), -225 exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})", -226 exp.DateStrToDate: datestrtodate_sql, -227 exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")), -228 exp.GroupConcat: rename_func("STRING_AGG"), -229 exp.ILike: no_ilike_sql, -230 exp.IntDiv: rename_func("DIV"), -231 exp.Max: max_or_greatest, -232 exp.Min: min_or_least, -233 exp.Select: transforms.preprocess( -234 [_unqualify_unnest], transforms.delegate("select_sql") -235 ), -236 exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})", -237 exp.TimeAdd: _date_add_sql("TIME", "ADD"), -238 exp.TimeSub: _date_add_sql("TIME", "SUB"), -239 exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"), -240 exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"), -241 exp.TimeStrToTime: timestrtotime_sql, -242 exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"), -243 exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"), -244 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -245 exp.VariancePop: rename_func("VAR_POP"), -246 exp.Values: _derived_table_values_to_unnest, -247 exp.ReturnsProperty: _returnsproperty_sql, -248 exp.Create: _create_sql, -249 exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression), -250 exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC" -251 if e.name == "IMMUTABLE" -252 else "NOT DETERMINISTIC", -253 exp.RegexpLike: rename_func("REGEXP_CONTAINS"), -254 } -255 -256 TYPE_MAPPING = { -257 **generator.Generator.TYPE_MAPPING, # type: ignore -258 exp.DataType.Type.BIGINT: "INT64", -259 exp.DataType.Type.BOOLEAN: "BOOL", -260 exp.DataType.Type.CHAR: "STRING", -261 exp.DataType.Type.DECIMAL: "NUMERIC", -262 exp.DataType.Type.DOUBLE: "FLOAT64", -263 exp.DataType.Type.FLOAT: "FLOAT64", -264 exp.DataType.Type.INT: "INT64", -265 exp.DataType.Type.NCHAR: "STRING", -266 exp.DataType.Type.NVARCHAR: "STRING", -267 exp.DataType.Type.SMALLINT: "INT64", -268 exp.DataType.Type.TEXT: "STRING", -269 exp.DataType.Type.TINYINT: "INT64", -270 exp.DataType.Type.VARCHAR: "STRING", -271 } -272 PROPERTIES_LOCATION = { -273 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -274 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, -275 } -276 -277 EXPLICIT_UNION = True -278 LIMIT_FETCH = "LIMIT" -279 -280 def array_sql(self, expression: exp.Array) -> str: -281 first_arg = seq_get(expression.expressions, 0) -282 if isinstance(first_arg, exp.Subqueryable): -283 return f"ARRAY{self.wrap(self.sql(first_arg))}" -284 -285 return inline_array_sql(self, expression) -286 -287 def transaction_sql(self, *_) -> str: -288 return "BEGIN TRANSACTION" -289 -290 def commit_sql(self, *_) -> str: -291 return "COMMIT TRANSACTION" +216 LOG_BASE_FIRST = False +217 LOG_DEFAULTS_TO_LN = True +218 +219 class Generator(generator.Generator): +220 TRANSFORMS = { +221 **generator.Generator.TRANSFORMS, # type: ignore +222 **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES, # type: ignore +223 exp.ArraySize: rename_func("ARRAY_LENGTH"), +224 exp.AtTimeZone: lambda self, e: self.func( +225 "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone")) +226 ), +227 exp.DateAdd: _date_add_sql("DATE", "ADD"), +228 exp.DateSub: _date_add_sql("DATE", "SUB"), +229 exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"), +230 exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"), +231 exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})", +232 exp.DateStrToDate: datestrtodate_sql, +233 exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")), +234 exp.GroupConcat: rename_func("STRING_AGG"), +235 exp.ILike: no_ilike_sql, +236 exp.IntDiv: rename_func("DIV"), +237 exp.Max: max_or_greatest, +238 exp.Min: min_or_least, +239 exp.Select: transforms.preprocess( +240 [_unqualify_unnest], transforms.delegate("select_sql") +241 ), +242 exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})", +243 exp.TimeAdd: _date_add_sql("TIME", "ADD"), +244 exp.TimeSub: _date_add_sql("TIME", "SUB"), +245 exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"), +246 exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"), +247 exp.TimeStrToTime: timestrtotime_sql, +248 exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"), +249 exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"), +250 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", +251 exp.VariancePop: rename_func("VAR_POP"), +252 exp.Values: _derived_table_values_to_unnest, +253 exp.ReturnsProperty: _returnsproperty_sql, +254 exp.Create: _create_sql, +255 exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression), +256 exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC" +257 if e.name == "IMMUTABLE" +258 else "NOT DETERMINISTIC", +259 exp.RegexpLike: rename_func("REGEXP_CONTAINS"), +260 } +261 +262 TYPE_MAPPING = { +263 **generator.Generator.TYPE_MAPPING, # type: ignore +264 exp.DataType.Type.BIGINT: "INT64", +265 exp.DataType.Type.BOOLEAN: "BOOL", +266 exp.DataType.Type.CHAR: "STRING", +267 exp.DataType.Type.DECIMAL: "NUMERIC", +268 exp.DataType.Type.DOUBLE: "FLOAT64", +269 exp.DataType.Type.FLOAT: "FLOAT64", +270 exp.DataType.Type.INT: "INT64", +271 exp.DataType.Type.NCHAR: "STRING", +272 exp.DataType.Type.NVARCHAR: "STRING", +273 exp.DataType.Type.SMALLINT: "INT64", +274 exp.DataType.Type.TEXT: "STRING", +275 exp.DataType.Type.TINYINT: "INT64", +276 exp.DataType.Type.VARCHAR: "STRING", +277 } +278 PROPERTIES_LOCATION = { +279 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +280 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, +281 } +282 +283 EXPLICIT_UNION = True +284 LIMIT_FETCH = "LIMIT" +285 +286 def array_sql(self, expression: exp.Array) -> str: +287 first_arg = seq_get(expression.expressions, 0) +288 if isinstance(first_arg, exp.Subqueryable): +289 return f"ARRAY{self.wrap(self.sql(first_arg))}" +290 +291 return inline_array_sql(self, expression) 292 -293 def rollback_sql(self, *_) -> str: -294 return "ROLLBACK TRANSACTION" +293 def transaction_sql(self, *_) -> str: +294 return "BEGIN TRANSACTION" 295 -296 def in_unnest_op(self, expression: exp.Unnest) -> str: -297 return self.sql(expression) +296 def commit_sql(self, *_) -> str: +297 return "COMMIT TRANSACTION" 298 -299 def except_op(self, expression: exp.Except) -> str: -300 if not expression.args.get("distinct", False): -301 self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery") -302 return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" -303 -304 def intersect_op(self, expression: exp.Intersect) -> str: -305 if not expression.args.get("distinct", False): -306 self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery") -307 return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" +299 def rollback_sql(self, *_) -> str: +300 return "ROLLBACK TRANSACTION" +301 +302 def in_unnest_op(self, expression: exp.Unnest) -> str: +303 return self.sql(expression) +304 +305 def except_op(self, expression: exp.Except) -> str: +306 if not expression.args.get("distinct", False): +307 self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery") +308 return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" +309 +310 def intersect_op(self, expression: exp.Intersect) -> str: +311 if not expression.args.get("distinct", False): +312 self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery") +313 return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
@@ -517,98 +523,104 @@ 214 ), 215 } 216 -217 class Generator(generator.Generator): -218 TRANSFORMS = { -219 **generator.Generator.TRANSFORMS, # type: ignore -220 **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES, # type: ignore -221 exp.ArraySize: rename_func("ARRAY_LENGTH"), -222 exp.DateAdd: _date_add_sql("DATE", "ADD"), -223 exp.DateSub: _date_add_sql("DATE", "SUB"), -224 exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"), -225 exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"), -226 exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})", -227 exp.DateStrToDate: datestrtodate_sql, -228 exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")), -229 exp.GroupConcat: rename_func("STRING_AGG"), -230 exp.ILike: no_ilike_sql, -231 exp.IntDiv: rename_func("DIV"), -232 exp.Max: max_or_greatest, -233 exp.Min: min_or_least, -234 exp.Select: transforms.preprocess( -235 [_unqualify_unnest], transforms.delegate("select_sql") -236 ), -237 exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})", -238 exp.TimeAdd: _date_add_sql("TIME", "ADD"), -239 exp.TimeSub: _date_add_sql("TIME", "SUB"), -240 exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"), -241 exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"), -242 exp.TimeStrToTime: timestrtotime_sql, -243 exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"), -244 exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"), -245 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -246 exp.VariancePop: rename_func("VAR_POP"), -247 exp.Values: _derived_table_values_to_unnest, -248 exp.ReturnsProperty: _returnsproperty_sql, -249 exp.Create: _create_sql, -250 exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression), -251 exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC" -252 if e.name == "IMMUTABLE" -253 else "NOT DETERMINISTIC", -254 exp.RegexpLike: rename_func("REGEXP_CONTAINS"), -255 } -256 -257 TYPE_MAPPING = { -258 **generator.Generator.TYPE_MAPPING, # type: ignore -259 exp.DataType.Type.BIGINT: "INT64", -260 exp.DataType.Type.BOOLEAN: "BOOL", -261 exp.DataType.Type.CHAR: "STRING", -262 exp.DataType.Type.DECIMAL: "NUMERIC", -263 exp.DataType.Type.DOUBLE: "FLOAT64", -264 exp.DataType.Type.FLOAT: "FLOAT64", -265 exp.DataType.Type.INT: "INT64", -266 exp.DataType.Type.NCHAR: "STRING", -267 exp.DataType.Type.NVARCHAR: "STRING", -268 exp.DataType.Type.SMALLINT: "INT64", -269 exp.DataType.Type.TEXT: "STRING", -270 exp.DataType.Type.TINYINT: "INT64", -271 exp.DataType.Type.VARCHAR: "STRING", -272 } -273 PROPERTIES_LOCATION = { -274 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -275 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, -276 } -277 -278 EXPLICIT_UNION = True -279 LIMIT_FETCH = "LIMIT" -280 -281 def array_sql(self, expression: exp.Array) -> str: -282 first_arg = seq_get(expression.expressions, 0) -283 if isinstance(first_arg, exp.Subqueryable): -284 return f"ARRAY{self.wrap(self.sql(first_arg))}" -285 -286 return inline_array_sql(self, expression) -287 -288 def transaction_sql(self, *_) -> str: -289 return "BEGIN TRANSACTION" -290 -291 def commit_sql(self, *_) -> str: -292 return "COMMIT TRANSACTION" +217 LOG_BASE_FIRST = False +218 LOG_DEFAULTS_TO_LN = True +219 +220 class Generator(generator.Generator): +221 TRANSFORMS = { +222 **generator.Generator.TRANSFORMS, # type: ignore +223 **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES, # type: ignore +224 exp.ArraySize: rename_func("ARRAY_LENGTH"), +225 exp.AtTimeZone: lambda self, e: self.func( +226 "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone")) +227 ), +228 exp.DateAdd: _date_add_sql("DATE", "ADD"), +229 exp.DateSub: _date_add_sql("DATE", "SUB"), +230 exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"), +231 exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"), +232 exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})", +233 exp.DateStrToDate: datestrtodate_sql, +234 exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")), +235 exp.GroupConcat: rename_func("STRING_AGG"), +236 exp.ILike: no_ilike_sql, +237 exp.IntDiv: rename_func("DIV"), +238 exp.Max: max_or_greatest, +239 exp.Min: min_or_least, +240 exp.Select: transforms.preprocess( +241 [_unqualify_unnest], transforms.delegate("select_sql") +242 ), +243 exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})", +244 exp.TimeAdd: _date_add_sql("TIME", "ADD"), +245 exp.TimeSub: _date_add_sql("TIME", "SUB"), +246 exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"), +247 exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"), +248 exp.TimeStrToTime: timestrtotime_sql, +249 exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"), +250 exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"), +251 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", +252 exp.VariancePop: rename_func("VAR_POP"), +253 exp.Values: _derived_table_values_to_unnest, +254 exp.ReturnsProperty: _returnsproperty_sql, +255 exp.Create: _create_sql, +256 exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression), +257 exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC" +258 if e.name == "IMMUTABLE" +259 else "NOT DETERMINISTIC", +260 exp.RegexpLike: rename_func("REGEXP_CONTAINS"), +261 } +262 +263 TYPE_MAPPING = { +264 **generator.Generator.TYPE_MAPPING, # type: ignore +265 exp.DataType.Type.BIGINT: "INT64", +266 exp.DataType.Type.BOOLEAN: "BOOL", +267 exp.DataType.Type.CHAR: "STRING", +268 exp.DataType.Type.DECIMAL: "NUMERIC", +269 exp.DataType.Type.DOUBLE: "FLOAT64", +270 exp.DataType.Type.FLOAT: "FLOAT64", +271 exp.DataType.Type.INT: "INT64", +272 exp.DataType.Type.NCHAR: "STRING", +273 exp.DataType.Type.NVARCHAR: "STRING", +274 exp.DataType.Type.SMALLINT: "INT64", +275 exp.DataType.Type.TEXT: "STRING", +276 exp.DataType.Type.TINYINT: "INT64", +277 exp.DataType.Type.VARCHAR: "STRING", +278 } +279 PROPERTIES_LOCATION = { +280 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +281 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, +282 } +283 +284 EXPLICIT_UNION = True +285 LIMIT_FETCH = "LIMIT" +286 +287 def array_sql(self, expression: exp.Array) -> str: +288 first_arg = seq_get(expression.expressions, 0) +289 if isinstance(first_arg, exp.Subqueryable): +290 return f"ARRAY{self.wrap(self.sql(first_arg))}" +291 +292 return inline_array_sql(self, expression) 293 -294 def rollback_sql(self, *_) -> str: -295 return "ROLLBACK TRANSACTION" +294 def transaction_sql(self, *_) -> str: +295 return "BEGIN TRANSACTION" 296 -297 def in_unnest_op(self, expression: exp.Unnest) -> str: -298 return self.sql(expression) +297 def commit_sql(self, *_) -> str: +298 return "COMMIT TRANSACTION" 299 -300 def except_op(self, expression: exp.Except) -> str: -301 if not expression.args.get("distinct", False): -302 self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery") -303 return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" -304 -305 def intersect_op(self, expression: exp.Intersect) -> str: -306 if not expression.args.get("distinct", False): -307 self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery") -308 return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" +300 def rollback_sql(self, *_) -> str: +301 return "ROLLBACK TRANSACTION" +302 +303 def in_unnest_op(self, expression: exp.Unnest) -> str: +304 return self.sql(expression) +305 +306 def except_op(self, expression: exp.Except) -> str: +307 if not expression.args.get("distinct", False): +308 self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery") +309 return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" +310 +311 def intersect_op(self, expression: exp.Intersect) -> str: +312 if not expression.args.get("distinct", False): +313 self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery") +314 return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
@@ -752,6 +764,9 @@ 213 exp.VolatilityProperty, this=exp.Literal.string("VOLATILE") 214 ), 215 } +216 +217 LOG_BASE_FIRST = False +218 LOG_DEFAULTS_TO_LN = True
@@ -808,98 +823,101 @@ Default: "nulls_are_small"
-
217    class Generator(generator.Generator):
-218        TRANSFORMS = {
-219            **generator.Generator.TRANSFORMS,  # type: ignore
-220            **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES,  # type: ignore
-221            exp.ArraySize: rename_func("ARRAY_LENGTH"),
-222            exp.DateAdd: _date_add_sql("DATE", "ADD"),
-223            exp.DateSub: _date_add_sql("DATE", "SUB"),
-224            exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"),
-225            exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"),
-226            exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})",
-227            exp.DateStrToDate: datestrtodate_sql,
-228            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
-229            exp.GroupConcat: rename_func("STRING_AGG"),
-230            exp.ILike: no_ilike_sql,
-231            exp.IntDiv: rename_func("DIV"),
-232            exp.Max: max_or_greatest,
-233            exp.Min: min_or_least,
-234            exp.Select: transforms.preprocess(
-235                [_unqualify_unnest], transforms.delegate("select_sql")
-236            ),
-237            exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})",
-238            exp.TimeAdd: _date_add_sql("TIME", "ADD"),
-239            exp.TimeSub: _date_add_sql("TIME", "SUB"),
-240            exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"),
-241            exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"),
-242            exp.TimeStrToTime: timestrtotime_sql,
-243            exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"),
-244            exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"),
-245            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
-246            exp.VariancePop: rename_func("VAR_POP"),
-247            exp.Values: _derived_table_values_to_unnest,
-248            exp.ReturnsProperty: _returnsproperty_sql,
-249            exp.Create: _create_sql,
-250            exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression),
-251            exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC"
-252            if e.name == "IMMUTABLE"
-253            else "NOT DETERMINISTIC",
-254            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
-255        }
-256
-257        TYPE_MAPPING = {
-258            **generator.Generator.TYPE_MAPPING,  # type: ignore
-259            exp.DataType.Type.BIGINT: "INT64",
-260            exp.DataType.Type.BOOLEAN: "BOOL",
-261            exp.DataType.Type.CHAR: "STRING",
-262            exp.DataType.Type.DECIMAL: "NUMERIC",
-263            exp.DataType.Type.DOUBLE: "FLOAT64",
-264            exp.DataType.Type.FLOAT: "FLOAT64",
-265            exp.DataType.Type.INT: "INT64",
-266            exp.DataType.Type.NCHAR: "STRING",
-267            exp.DataType.Type.NVARCHAR: "STRING",
-268            exp.DataType.Type.SMALLINT: "INT64",
-269            exp.DataType.Type.TEXT: "STRING",
-270            exp.DataType.Type.TINYINT: "INT64",
-271            exp.DataType.Type.VARCHAR: "STRING",
-272        }
-273        PROPERTIES_LOCATION = {
-274            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
-275            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
-276        }
-277
-278        EXPLICIT_UNION = True
-279        LIMIT_FETCH = "LIMIT"
-280
-281        def array_sql(self, expression: exp.Array) -> str:
-282            first_arg = seq_get(expression.expressions, 0)
-283            if isinstance(first_arg, exp.Subqueryable):
-284                return f"ARRAY{self.wrap(self.sql(first_arg))}"
-285
-286            return inline_array_sql(self, expression)
-287
-288        def transaction_sql(self, *_) -> str:
-289            return "BEGIN TRANSACTION"
-290
-291        def commit_sql(self, *_) -> str:
-292            return "COMMIT TRANSACTION"
+            
220    class Generator(generator.Generator):
+221        TRANSFORMS = {
+222            **generator.Generator.TRANSFORMS,  # type: ignore
+223            **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES,  # type: ignore
+224            exp.ArraySize: rename_func("ARRAY_LENGTH"),
+225            exp.AtTimeZone: lambda self, e: self.func(
+226                "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone"))
+227            ),
+228            exp.DateAdd: _date_add_sql("DATE", "ADD"),
+229            exp.DateSub: _date_add_sql("DATE", "SUB"),
+230            exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"),
+231            exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"),
+232            exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})",
+233            exp.DateStrToDate: datestrtodate_sql,
+234            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
+235            exp.GroupConcat: rename_func("STRING_AGG"),
+236            exp.ILike: no_ilike_sql,
+237            exp.IntDiv: rename_func("DIV"),
+238            exp.Max: max_or_greatest,
+239            exp.Min: min_or_least,
+240            exp.Select: transforms.preprocess(
+241                [_unqualify_unnest], transforms.delegate("select_sql")
+242            ),
+243            exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})",
+244            exp.TimeAdd: _date_add_sql("TIME", "ADD"),
+245            exp.TimeSub: _date_add_sql("TIME", "SUB"),
+246            exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"),
+247            exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"),
+248            exp.TimeStrToTime: timestrtotime_sql,
+249            exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"),
+250            exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"),
+251            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
+252            exp.VariancePop: rename_func("VAR_POP"),
+253            exp.Values: _derived_table_values_to_unnest,
+254            exp.ReturnsProperty: _returnsproperty_sql,
+255            exp.Create: _create_sql,
+256            exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression),
+257            exp.VolatilityProperty: lambda self, e: f"DETERMINISTIC"
+258            if e.name == "IMMUTABLE"
+259            else "NOT DETERMINISTIC",
+260            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
+261        }
+262
+263        TYPE_MAPPING = {
+264            **generator.Generator.TYPE_MAPPING,  # type: ignore
+265            exp.DataType.Type.BIGINT: "INT64",
+266            exp.DataType.Type.BOOLEAN: "BOOL",
+267            exp.DataType.Type.CHAR: "STRING",
+268            exp.DataType.Type.DECIMAL: "NUMERIC",
+269            exp.DataType.Type.DOUBLE: "FLOAT64",
+270            exp.DataType.Type.FLOAT: "FLOAT64",
+271            exp.DataType.Type.INT: "INT64",
+272            exp.DataType.Type.NCHAR: "STRING",
+273            exp.DataType.Type.NVARCHAR: "STRING",
+274            exp.DataType.Type.SMALLINT: "INT64",
+275            exp.DataType.Type.TEXT: "STRING",
+276            exp.DataType.Type.TINYINT: "INT64",
+277            exp.DataType.Type.VARCHAR: "STRING",
+278        }
+279        PROPERTIES_LOCATION = {
+280            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+281            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
+282        }
+283
+284        EXPLICIT_UNION = True
+285        LIMIT_FETCH = "LIMIT"
+286
+287        def array_sql(self, expression: exp.Array) -> str:
+288            first_arg = seq_get(expression.expressions, 0)
+289            if isinstance(first_arg, exp.Subqueryable):
+290                return f"ARRAY{self.wrap(self.sql(first_arg))}"
+291
+292            return inline_array_sql(self, expression)
 293
-294        def rollback_sql(self, *_) -> str:
-295            return "ROLLBACK TRANSACTION"
+294        def transaction_sql(self, *_) -> str:
+295            return "BEGIN TRANSACTION"
 296
-297        def in_unnest_op(self, expression: exp.Unnest) -> str:
-298            return self.sql(expression)
+297        def commit_sql(self, *_) -> str:
+298            return "COMMIT TRANSACTION"
 299
-300        def except_op(self, expression: exp.Except) -> str:
-301            if not expression.args.get("distinct", False):
-302                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
-303            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
-304
-305        def intersect_op(self, expression: exp.Intersect) -> str:
-306            if not expression.args.get("distinct", False):
-307                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
-308            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
+300        def rollback_sql(self, *_) -> str:
+301            return "ROLLBACK TRANSACTION"
+302
+303        def in_unnest_op(self, expression: exp.Unnest) -> str:
+304            return self.sql(expression)
+305
+306        def except_op(self, expression: exp.Except) -> str:
+307            if not expression.args.get("distinct", False):
+308                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
+309            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
+310
+311        def intersect_op(self, expression: exp.Intersect) -> str:
+312            if not expression.args.get("distinct", False):
+313                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
+314            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
 
@@ -958,12 +976,12 @@ Default: True
-
281        def array_sql(self, expression: exp.Array) -> str:
-282            first_arg = seq_get(expression.expressions, 0)
-283            if isinstance(first_arg, exp.Subqueryable):
-284                return f"ARRAY{self.wrap(self.sql(first_arg))}"
-285
-286            return inline_array_sql(self, expression)
+            
287        def array_sql(self, expression: exp.Array) -> str:
+288            first_arg = seq_get(expression.expressions, 0)
+289            if isinstance(first_arg, exp.Subqueryable):
+290                return f"ARRAY{self.wrap(self.sql(first_arg))}"
+291
+292            return inline_array_sql(self, expression)
 
@@ -981,8 +999,8 @@ Default: True
-
288        def transaction_sql(self, *_) -> str:
-289            return "BEGIN TRANSACTION"
+            
294        def transaction_sql(self, *_) -> str:
+295            return "BEGIN TRANSACTION"
 
@@ -1000,8 +1018,8 @@ Default: True
-
291        def commit_sql(self, *_) -> str:
-292            return "COMMIT TRANSACTION"
+            
297        def commit_sql(self, *_) -> str:
+298            return "COMMIT TRANSACTION"
 
@@ -1019,8 +1037,8 @@ Default: True
-
294        def rollback_sql(self, *_) -> str:
-295            return "ROLLBACK TRANSACTION"
+            
300        def rollback_sql(self, *_) -> str:
+301            return "ROLLBACK TRANSACTION"
 
@@ -1038,8 +1056,8 @@ Default: True
-
297        def in_unnest_op(self, expression: exp.Unnest) -> str:
-298            return self.sql(expression)
+            
303        def in_unnest_op(self, expression: exp.Unnest) -> str:
+304            return self.sql(expression)
 
@@ -1057,10 +1075,10 @@ Default: True
-
300        def except_op(self, expression: exp.Except) -> str:
-301            if not expression.args.get("distinct", False):
-302                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
-303            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
+            
306        def except_op(self, expression: exp.Except) -> str:
+307            if not expression.args.get("distinct", False):
+308                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
+309            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
 
@@ -1078,10 +1096,10 @@ Default: True
-
305        def intersect_op(self, expression: exp.Intersect) -> str:
-306            if not expression.args.get("distinct", False):
-307                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
-308            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
+            
311        def intersect_op(self, expression: exp.Intersect) -> str:
+312            if not expression.args.get("distinct", False):
+313                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
+314            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
 
@@ -1108,6 +1126,7 @@ Default: True
cache_sql
characterset_sql
column_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -1223,6 +1242,7 @@ Default: True
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -1270,8 +1290,10 @@ Default: True
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
diff --git a/docs/sqlglot/dialects/clickhouse.html b/docs/sqlglot/dialects/clickhouse.html index 529646d..7bd3cf0 100644 --- a/docs/sqlglot/dialects/clickhouse.html +++ b/docs/sqlglot/dialects/clickhouse.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.clickhouse API documentation @@ -150,104 +150,106 @@
68 69 TABLE_ALIAS_TOKENS = {*parser.Parser.TABLE_ALIAS_TOKENS} - {TokenType.ANY} # type: ignore 70 - 71 def _parse_in( - 72 self, this: t.Optional[exp.Expression], is_global: bool = False - 73 ) -> exp.Expression: - 74 this = super()._parse_in(this) - 75 this.set("is_global", is_global) - 76 return this - 77 - 78 def _parse_table( - 79 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None - 80 ) -> t.Optional[exp.Expression]: - 81 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) - 82 - 83 if self._match(TokenType.FINAL): - 84 this = self.expression(exp.Final, this=this) - 85 - 86 return this + 71 LOG_DEFAULTS_TO_LN = True + 72 + 73 def _parse_in( + 74 self, this: t.Optional[exp.Expression], is_global: bool = False + 75 ) -> exp.Expression: + 76 this = super()._parse_in(this) + 77 this.set("is_global", is_global) + 78 return this + 79 + 80 def _parse_table( + 81 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None + 82 ) -> t.Optional[exp.Expression]: + 83 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) + 84 + 85 if self._match(TokenType.FINAL): + 86 this = self.expression(exp.Final, this=this) 87 - 88 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: - 89 return super()._parse_position(haystack_first=True) - 90 - 91 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ - 92 def _parse_cte(self) -> exp.Expression: - 93 index = self._index - 94 try: - 95 # WITH <identifier> AS <subquery expression> - 96 return super()._parse_cte() - 97 except ParseError: - 98 # WITH <expression> AS <identifier> - 99 self._retreat(index) -100 statement = self._parse_statement() -101 -102 if statement and isinstance(statement.this, exp.Alias): -103 self.raise_error("Expected CTE to have alias") -104 -105 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) + 88 return this + 89 + 90 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: + 91 return super()._parse_position(haystack_first=True) + 92 + 93 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ + 94 def _parse_cte(self) -> exp.Expression: + 95 index = self._index + 96 try: + 97 # WITH <identifier> AS <subquery expression> + 98 return super()._parse_cte() + 99 except ParseError: +100 # WITH <expression> AS <identifier> +101 self._retreat(index) +102 statement = self._parse_statement() +103 +104 if statement and isinstance(statement.this, exp.Alias): +105 self.raise_error("Expected CTE to have alias") 106 -107 class Generator(generator.Generator): -108 STRUCT_DELIMITER = ("(", ")") -109 -110 TYPE_MAPPING = { -111 **generator.Generator.TYPE_MAPPING, # type: ignore -112 exp.DataType.Type.NULLABLE: "Nullable", -113 exp.DataType.Type.DATETIME: "DateTime64", -114 exp.DataType.Type.MAP: "Map", -115 exp.DataType.Type.ARRAY: "Array", -116 exp.DataType.Type.STRUCT: "Tuple", -117 exp.DataType.Type.TINYINT: "Int8", -118 exp.DataType.Type.SMALLINT: "Int16", -119 exp.DataType.Type.INT: "Int32", -120 exp.DataType.Type.BIGINT: "Int64", -121 exp.DataType.Type.FLOAT: "Float32", -122 exp.DataType.Type.DOUBLE: "Float64", -123 } -124 -125 TRANSFORMS = { -126 **generator.Generator.TRANSFORMS, # type: ignore -127 exp.Array: inline_array_sql, -128 exp.ExponentialTimeDecayedAvg: lambda self, e: f"exponentialTimeDecayedAvg{self._param_args_sql(e, 'decay', ['this', 'time'])}", -129 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", -130 exp.GroupUniqArray: lambda self, e: f"groupUniqArray{self._param_args_sql(e, 'size', 'this')}", -131 exp.Histogram: lambda self, e: f"histogram{self._param_args_sql(e, 'bins', 'this')}", -132 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), -133 exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}", -134 exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}", -135 exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}", -136 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", -137 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), -138 } -139 -140 EXPLICIT_UNION = True +107 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) +108 +109 class Generator(generator.Generator): +110 STRUCT_DELIMITER = ("(", ")") +111 +112 TYPE_MAPPING = { +113 **generator.Generator.TYPE_MAPPING, # type: ignore +114 exp.DataType.Type.NULLABLE: "Nullable", +115 exp.DataType.Type.DATETIME: "DateTime64", +116 exp.DataType.Type.MAP: "Map", +117 exp.DataType.Type.ARRAY: "Array", +118 exp.DataType.Type.STRUCT: "Tuple", +119 exp.DataType.Type.TINYINT: "Int8", +120 exp.DataType.Type.SMALLINT: "Int16", +121 exp.DataType.Type.INT: "Int32", +122 exp.DataType.Type.BIGINT: "Int64", +123 exp.DataType.Type.FLOAT: "Float32", +124 exp.DataType.Type.DOUBLE: "Float64", +125 } +126 +127 TRANSFORMS = { +128 **generator.Generator.TRANSFORMS, # type: ignore +129 exp.Array: inline_array_sql, +130 exp.ExponentialTimeDecayedAvg: lambda self, e: f"exponentialTimeDecayedAvg{self._param_args_sql(e, 'decay', ['this', 'time'])}", +131 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", +132 exp.GroupUniqArray: lambda self, e: f"groupUniqArray{self._param_args_sql(e, 'size', 'this')}", +133 exp.Histogram: lambda self, e: f"histogram{self._param_args_sql(e, 'bins', 'this')}", +134 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), +135 exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}", +136 exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}", +137 exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}", +138 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", +139 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), +140 } 141 -142 def _param_args_sql( -143 self, -144 expression: exp.Expression, -145 param_names: str | t.List[str], -146 arg_names: str | t.List[str], -147 ) -> str: -148 params = self.format_args( -149 *( -150 arg -151 for name in ensure_list(param_names) -152 for arg in ensure_list(expression.args.get(name)) -153 ) -154 ) -155 args = self.format_args( -156 *( -157 arg -158 for name in ensure_list(arg_names) -159 for arg in ensure_list(expression.args.get(name)) -160 ) -161 ) -162 return f"({params})({args})" -163 -164 def cte_sql(self, expression: exp.CTE) -> str: -165 if isinstance(expression.this, exp.Alias): -166 return self.sql(expression, "this") -167 -168 return super().cte_sql(expression) +142 EXPLICIT_UNION = True +143 +144 def _param_args_sql( +145 self, +146 expression: exp.Expression, +147 param_names: str | t.List[str], +148 arg_names: str | t.List[str], +149 ) -> str: +150 params = self.format_args( +151 *( +152 arg +153 for name in ensure_list(param_names) +154 for arg in ensure_list(expression.args.get(name)) +155 ) +156 ) +157 args = self.format_args( +158 *( +159 arg +160 for name in ensure_list(arg_names) +161 for arg in ensure_list(expression.args.get(name)) +162 ) +163 ) +164 return f"({params})({args})" +165 +166 def cte_sql(self, expression: exp.CTE) -> str: +167 if isinstance(expression.this, exp.Alias): +168 return self.sql(expression, "this") +169 +170 return super().cte_sql(expression)
@@ -316,104 +318,106 @@ 69 70 TABLE_ALIAS_TOKENS = {*parser.Parser.TABLE_ALIAS_TOKENS} - {TokenType.ANY} # type: ignore 71 - 72 def _parse_in( - 73 self, this: t.Optional[exp.Expression], is_global: bool = False - 74 ) -> exp.Expression: - 75 this = super()._parse_in(this) - 76 this.set("is_global", is_global) - 77 return this - 78 - 79 def _parse_table( - 80 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None - 81 ) -> t.Optional[exp.Expression]: - 82 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) - 83 - 84 if self._match(TokenType.FINAL): - 85 this = self.expression(exp.Final, this=this) - 86 - 87 return this + 72 LOG_DEFAULTS_TO_LN = True + 73 + 74 def _parse_in( + 75 self, this: t.Optional[exp.Expression], is_global: bool = False + 76 ) -> exp.Expression: + 77 this = super()._parse_in(this) + 78 this.set("is_global", is_global) + 79 return this + 80 + 81 def _parse_table( + 82 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None + 83 ) -> t.Optional[exp.Expression]: + 84 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) + 85 + 86 if self._match(TokenType.FINAL): + 87 this = self.expression(exp.Final, this=this) 88 - 89 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: - 90 return super()._parse_position(haystack_first=True) - 91 - 92 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ - 93 def _parse_cte(self) -> exp.Expression: - 94 index = self._index - 95 try: - 96 # WITH <identifier> AS <subquery expression> - 97 return super()._parse_cte() - 98 except ParseError: - 99 # WITH <expression> AS <identifier> -100 self._retreat(index) -101 statement = self._parse_statement() -102 -103 if statement and isinstance(statement.this, exp.Alias): -104 self.raise_error("Expected CTE to have alias") -105 -106 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) + 89 return this + 90 + 91 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: + 92 return super()._parse_position(haystack_first=True) + 93 + 94 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ + 95 def _parse_cte(self) -> exp.Expression: + 96 index = self._index + 97 try: + 98 # WITH <identifier> AS <subquery expression> + 99 return super()._parse_cte() +100 except ParseError: +101 # WITH <expression> AS <identifier> +102 self._retreat(index) +103 statement = self._parse_statement() +104 +105 if statement and isinstance(statement.this, exp.Alias): +106 self.raise_error("Expected CTE to have alias") 107 -108 class Generator(generator.Generator): -109 STRUCT_DELIMITER = ("(", ")") -110 -111 TYPE_MAPPING = { -112 **generator.Generator.TYPE_MAPPING, # type: ignore -113 exp.DataType.Type.NULLABLE: "Nullable", -114 exp.DataType.Type.DATETIME: "DateTime64", -115 exp.DataType.Type.MAP: "Map", -116 exp.DataType.Type.ARRAY: "Array", -117 exp.DataType.Type.STRUCT: "Tuple", -118 exp.DataType.Type.TINYINT: "Int8", -119 exp.DataType.Type.SMALLINT: "Int16", -120 exp.DataType.Type.INT: "Int32", -121 exp.DataType.Type.BIGINT: "Int64", -122 exp.DataType.Type.FLOAT: "Float32", -123 exp.DataType.Type.DOUBLE: "Float64", -124 } -125 -126 TRANSFORMS = { -127 **generator.Generator.TRANSFORMS, # type: ignore -128 exp.Array: inline_array_sql, -129 exp.ExponentialTimeDecayedAvg: lambda self, e: f"exponentialTimeDecayedAvg{self._param_args_sql(e, 'decay', ['this', 'time'])}", -130 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", -131 exp.GroupUniqArray: lambda self, e: f"groupUniqArray{self._param_args_sql(e, 'size', 'this')}", -132 exp.Histogram: lambda self, e: f"histogram{self._param_args_sql(e, 'bins', 'this')}", -133 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), -134 exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}", -135 exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}", -136 exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}", -137 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", -138 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), -139 } -140 -141 EXPLICIT_UNION = True +108 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) +109 +110 class Generator(generator.Generator): +111 STRUCT_DELIMITER = ("(", ")") +112 +113 TYPE_MAPPING = { +114 **generator.Generator.TYPE_MAPPING, # type: ignore +115 exp.DataType.Type.NULLABLE: "Nullable", +116 exp.DataType.Type.DATETIME: "DateTime64", +117 exp.DataType.Type.MAP: "Map", +118 exp.DataType.Type.ARRAY: "Array", +119 exp.DataType.Type.STRUCT: "Tuple", +120 exp.DataType.Type.TINYINT: "Int8", +121 exp.DataType.Type.SMALLINT: "Int16", +122 exp.DataType.Type.INT: "Int32", +123 exp.DataType.Type.BIGINT: "Int64", +124 exp.DataType.Type.FLOAT: "Float32", +125 exp.DataType.Type.DOUBLE: "Float64", +126 } +127 +128 TRANSFORMS = { +129 **generator.Generator.TRANSFORMS, # type: ignore +130 exp.Array: inline_array_sql, +131 exp.ExponentialTimeDecayedAvg: lambda self, e: f"exponentialTimeDecayedAvg{self._param_args_sql(e, 'decay', ['this', 'time'])}", +132 exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL", +133 exp.GroupUniqArray: lambda self, e: f"groupUniqArray{self._param_args_sql(e, 'size', 'this')}", +134 exp.Histogram: lambda self, e: f"histogram{self._param_args_sql(e, 'bins', 'this')}", +135 exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)), +136 exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}", +137 exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}", +138 exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}", +139 exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", +140 exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), +141 } 142 -143 def _param_args_sql( -144 self, -145 expression: exp.Expression, -146 param_names: str | t.List[str], -147 arg_names: str | t.List[str], -148 ) -> str: -149 params = self.format_args( -150 *( -151 arg -152 for name in ensure_list(param_names) -153 for arg in ensure_list(expression.args.get(name)) -154 ) -155 ) -156 args = self.format_args( -157 *( -158 arg -159 for name in ensure_list(arg_names) -160 for arg in ensure_list(expression.args.get(name)) -161 ) -162 ) -163 return f"({params})({args})" -164 -165 def cte_sql(self, expression: exp.CTE) -> str: -166 if isinstance(expression.this, exp.Alias): -167 return self.sql(expression, "this") -168 -169 return super().cte_sql(expression) +143 EXPLICIT_UNION = True +144 +145 def _param_args_sql( +146 self, +147 expression: exp.Expression, +148 param_names: str | t.List[str], +149 arg_names: str | t.List[str], +150 ) -> str: +151 params = self.format_args( +152 *( +153 arg +154 for name in ensure_list(param_names) +155 for arg in ensure_list(expression.args.get(name)) +156 ) +157 ) +158 args = self.format_args( +159 *( +160 arg +161 for name in ensure_list(arg_names) +162 for arg in ensure_list(expression.args.get(name)) +163 ) +164 ) +165 return f"({params})({args})" +166 +167 def cte_sql(self, expression: exp.CTE) -> str: +168 if isinstance(expression.this, exp.Alias): +169 return self.sql(expression, "this") +170 +171 return super().cte_sql(expression)
@@ -523,41 +527,43 @@ 69 70 TABLE_ALIAS_TOKENS = {*parser.Parser.TABLE_ALIAS_TOKENS} - {TokenType.ANY} # type: ignore 71 - 72 def _parse_in( - 73 self, this: t.Optional[exp.Expression], is_global: bool = False - 74 ) -> exp.Expression: - 75 this = super()._parse_in(this) - 76 this.set("is_global", is_global) - 77 return this - 78 - 79 def _parse_table( - 80 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None - 81 ) -> t.Optional[exp.Expression]: - 82 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) - 83 - 84 if self._match(TokenType.FINAL): - 85 this = self.expression(exp.Final, this=this) - 86 - 87 return this + 72 LOG_DEFAULTS_TO_LN = True + 73 + 74 def _parse_in( + 75 self, this: t.Optional[exp.Expression], is_global: bool = False + 76 ) -> exp.Expression: + 77 this = super()._parse_in(this) + 78 this.set("is_global", is_global) + 79 return this + 80 + 81 def _parse_table( + 82 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None + 83 ) -> t.Optional[exp.Expression]: + 84 this = super()._parse_table(schema=schema, alias_tokens=alias_tokens) + 85 + 86 if self._match(TokenType.FINAL): + 87 this = self.expression(exp.Final, this=this) 88 - 89 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: - 90 return super()._parse_position(haystack_first=True) - 91 - 92 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ - 93 def _parse_cte(self) -> exp.Expression: - 94 index = self._index - 95 try: - 96 # WITH <identifier> AS <subquery expression> - 97 return super()._parse_cte() - 98 except ParseError: - 99 # WITH <expression> AS <identifier> -100 self._retreat(index) -101 statement = self._parse_statement() -102 -103 if statement and isinstance(statement.this, exp.Alias): -104 self.raise_error("Expected CTE to have alias") -105 -106 return self.expression(exp.CTE, this=statement, alias=statement and statement.this) + 89 return this + 90 + 91 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: + 92 return super()._parse_position(haystack_first=True) + 93 + 94 # https://clickhouse.com/docs/en/sql-reference/statements/select/with/ + 95 def _parse_cte(self) -> exp.Expression: + 96 index = self._index + 97 try: + 98 # WITH <identifier> AS <subquery expression> + 99 return super()._parse_cte() +100 except ParseError: +101 # WITH <expression> AS <identifier> +102 self._retreat(index) +103 statement = self._parse_statement() +104 +105 if statement and isinstance(statement.this, exp.Alias): +106 self.raise_error("Expected CTE to have alias") +107 +108 return self.expression(exp.CTE, this=statement, alias=statement and statement.this)
@@ -614,68 +620,68 @@ Default: "nulls_are_small"
-
108    class Generator(generator.Generator):
-109        STRUCT_DELIMITER = ("(", ")")
-110
-111        TYPE_MAPPING = {
-112            **generator.Generator.TYPE_MAPPING,  # type: ignore
-113            exp.DataType.Type.NULLABLE: "Nullable",
-114            exp.DataType.Type.DATETIME: "DateTime64",
-115            exp.DataType.Type.MAP: "Map",
-116            exp.DataType.Type.ARRAY: "Array",
-117            exp.DataType.Type.STRUCT: "Tuple",
-118            exp.DataType.Type.TINYINT: "Int8",
-119            exp.DataType.Type.SMALLINT: "Int16",
-120            exp.DataType.Type.INT: "Int32",
-121            exp.DataType.Type.BIGINT: "Int64",
-122            exp.DataType.Type.FLOAT: "Float32",
-123            exp.DataType.Type.DOUBLE: "Float64",
-124        }
-125
-126        TRANSFORMS = {
-127            **generator.Generator.TRANSFORMS,  # type: ignore
-128            exp.Array: inline_array_sql,
-129            exp.ExponentialTimeDecayedAvg: lambda self, e: f"exponentialTimeDecayedAvg{self._param_args_sql(e, 'decay', ['this', 'time'])}",
-130            exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL",
-131            exp.GroupUniqArray: lambda self, e: f"groupUniqArray{self._param_args_sql(e, 'size', 'this')}",
-132            exp.Histogram: lambda self, e: f"histogram{self._param_args_sql(e, 'bins', 'this')}",
-133            exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)),
-134            exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}",
-135            exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}",
-136            exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}",
-137            exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})",
-138            exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)),
-139        }
-140
-141        EXPLICIT_UNION = True
+            
110    class Generator(generator.Generator):
+111        STRUCT_DELIMITER = ("(", ")")
+112
+113        TYPE_MAPPING = {
+114            **generator.Generator.TYPE_MAPPING,  # type: ignore
+115            exp.DataType.Type.NULLABLE: "Nullable",
+116            exp.DataType.Type.DATETIME: "DateTime64",
+117            exp.DataType.Type.MAP: "Map",
+118            exp.DataType.Type.ARRAY: "Array",
+119            exp.DataType.Type.STRUCT: "Tuple",
+120            exp.DataType.Type.TINYINT: "Int8",
+121            exp.DataType.Type.SMALLINT: "Int16",
+122            exp.DataType.Type.INT: "Int32",
+123            exp.DataType.Type.BIGINT: "Int64",
+124            exp.DataType.Type.FLOAT: "Float32",
+125            exp.DataType.Type.DOUBLE: "Float64",
+126        }
+127
+128        TRANSFORMS = {
+129            **generator.Generator.TRANSFORMS,  # type: ignore
+130            exp.Array: inline_array_sql,
+131            exp.ExponentialTimeDecayedAvg: lambda self, e: f"exponentialTimeDecayedAvg{self._param_args_sql(e, 'decay', ['this', 'time'])}",
+132            exp.Final: lambda self, e: f"{self.sql(e, 'this')} FINAL",
+133            exp.GroupUniqArray: lambda self, e: f"groupUniqArray{self._param_args_sql(e, 'size', 'this')}",
+134            exp.Histogram: lambda self, e: f"histogram{self._param_args_sql(e, 'bins', 'this')}",
+135            exp.Map: lambda self, e: _lower_func(var_map_sql(self, e)),
+136            exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}",
+137            exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}",
+138            exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}",
+139            exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})",
+140            exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)),
+141        }
 142
-143        def _param_args_sql(
-144            self,
-145            expression: exp.Expression,
-146            param_names: str | t.List[str],
-147            arg_names: str | t.List[str],
-148        ) -> str:
-149            params = self.format_args(
-150                *(
-151                    arg
-152                    for name in ensure_list(param_names)
-153                    for arg in ensure_list(expression.args.get(name))
-154                )
-155            )
-156            args = self.format_args(
-157                *(
-158                    arg
-159                    for name in ensure_list(arg_names)
-160                    for arg in ensure_list(expression.args.get(name))
-161                )
-162            )
-163            return f"({params})({args})"
-164
-165        def cte_sql(self, expression: exp.CTE) -> str:
-166            if isinstance(expression.this, exp.Alias):
-167                return self.sql(expression, "this")
-168
-169            return super().cte_sql(expression)
+143        EXPLICIT_UNION = True
+144
+145        def _param_args_sql(
+146            self,
+147            expression: exp.Expression,
+148            param_names: str | t.List[str],
+149            arg_names: str | t.List[str],
+150        ) -> str:
+151            params = self.format_args(
+152                *(
+153                    arg
+154                    for name in ensure_list(param_names)
+155                    for arg in ensure_list(expression.args.get(name))
+156                )
+157            )
+158            args = self.format_args(
+159                *(
+160                    arg
+161                    for name in ensure_list(arg_names)
+162                    for arg in ensure_list(expression.args.get(name))
+163                )
+164            )
+165            return f"({params})({args})"
+166
+167        def cte_sql(self, expression: exp.CTE) -> str:
+168            if isinstance(expression.this, exp.Alias):
+169                return self.sql(expression, "this")
+170
+171            return super().cte_sql(expression)
 
@@ -734,11 +740,11 @@ Default: True
-
165        def cte_sql(self, expression: exp.CTE) -> str:
-166            if isinstance(expression.this, exp.Alias):
-167                return self.sql(expression, "this")
-168
-169            return super().cte_sql(expression)
+            
167        def cte_sql(self, expression: exp.CTE) -> str:
+168            if isinstance(expression.this, exp.Alias):
+169                return self.sql(expression, "this")
+170
+171            return super().cte_sql(expression)
 
@@ -765,6 +771,7 @@ Default: True
cache_sql
characterset_sql
column_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -881,6 +888,7 @@ Default: True
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -932,8 +940,10 @@ Default: True
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
diff --git a/docs/sqlglot/dialects/databricks.html b/docs/sqlglot/dialects/databricks.html index 2489f93..a7c10e6 100644 --- a/docs/sqlglot/dialects/databricks.html +++ b/docs/sqlglot/dialects/databricks.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.databricks API documentation @@ -95,22 +95,24 @@
16 "DATEDIFF": parse_date_delta(exp.DateDiff), 17 } 18 -19 class Generator(Spark.Generator): -20 TRANSFORMS = { -21 **Spark.Generator.TRANSFORMS, # type: ignore -22 exp.DateAdd: generate_date_delta_with_unit_sql, -23 exp.DateDiff: generate_date_delta_with_unit_sql, -24 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -25 } -26 TRANSFORMS.pop(exp.Select) # Remove the ELIMINATE_QUALIFY transformation -27 -28 PARAMETER_TOKEN = "$" +19 LOG_DEFAULTS_TO_LN = True +20 +21 class Generator(Spark.Generator): +22 TRANSFORMS = { +23 **Spark.Generator.TRANSFORMS, # type: ignore +24 exp.DateAdd: generate_date_delta_with_unit_sql, +25 exp.DateDiff: generate_date_delta_with_unit_sql, +26 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +27 } +28 TRANSFORMS.pop(exp.Select) # Remove the ELIMINATE_QUALIFY transformation 29 -30 class Tokenizer(Spark.Tokenizer): -31 SINGLE_TOKENS = { -32 **Spark.Tokenizer.SINGLE_TOKENS, -33 "$": TokenType.PARAMETER, -34 } +30 PARAMETER_TOKEN = "$" +31 +32 class Tokenizer(Spark.Tokenizer): +33 SINGLE_TOKENS = { +34 **Spark.Tokenizer.SINGLE_TOKENS, +35 "$": TokenType.PARAMETER, +36 }
@@ -135,22 +137,24 @@ 17 "DATEDIFF": parse_date_delta(exp.DateDiff), 18 } 19 -20 class Generator(Spark.Generator): -21 TRANSFORMS = { -22 **Spark.Generator.TRANSFORMS, # type: ignore -23 exp.DateAdd: generate_date_delta_with_unit_sql, -24 exp.DateDiff: generate_date_delta_with_unit_sql, -25 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -26 } -27 TRANSFORMS.pop(exp.Select) # Remove the ELIMINATE_QUALIFY transformation -28 -29 PARAMETER_TOKEN = "$" +20 LOG_DEFAULTS_TO_LN = True +21 +22 class Generator(Spark.Generator): +23 TRANSFORMS = { +24 **Spark.Generator.TRANSFORMS, # type: ignore +25 exp.DateAdd: generate_date_delta_with_unit_sql, +26 exp.DateDiff: generate_date_delta_with_unit_sql, +27 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +28 } +29 TRANSFORMS.pop(exp.Select) # Remove the ELIMINATE_QUALIFY transformation 30 -31 class Tokenizer(Spark.Tokenizer): -32 SINGLE_TOKENS = { -33 **Spark.Tokenizer.SINGLE_TOKENS, -34 "$": TokenType.PARAMETER, -35 } +31 PARAMETER_TOKEN = "$" +32 +33 class Tokenizer(Spark.Tokenizer): +34 SINGLE_TOKENS = { +35 **Spark.Tokenizer.SINGLE_TOKENS, +36 "$": TokenType.PARAMETER, +37 }
@@ -192,6 +196,8 @@ 16 "DATE_ADD": parse_date_delta(exp.DateAdd), 17 "DATEDIFF": parse_date_delta(exp.DateDiff), 18 } +19 +20 LOG_DEFAULTS_TO_LN = True
@@ -248,16 +254,16 @@ Default: "nulls_are_small"
-
20    class Generator(Spark.Generator):
-21        TRANSFORMS = {
-22            **Spark.Generator.TRANSFORMS,  # type: ignore
-23            exp.DateAdd: generate_date_delta_with_unit_sql,
-24            exp.DateDiff: generate_date_delta_with_unit_sql,
-25            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
-26        }
-27        TRANSFORMS.pop(exp.Select)  # Remove the ELIMINATE_QUALIFY transformation
-28
-29        PARAMETER_TOKEN = "$"
+            
22    class Generator(Spark.Generator):
+23        TRANSFORMS = {
+24            **Spark.Generator.TRANSFORMS,  # type: ignore
+25            exp.DateAdd: generate_date_delta_with_unit_sql,
+26            exp.DateDiff: generate_date_delta_with_unit_sql,
+27            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
+28        }
+29        TRANSFORMS.pop(exp.Select)  # Remove the ELIMINATE_QUALIFY transformation
+30
+31        PARAMETER_TOKEN = "$"
 
@@ -325,6 +331,7 @@ Default: True
cache_sql
characterset_sql
column_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -440,6 +447,7 @@ Default: True
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -490,8 +498,10 @@ Default: True
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
@@ -549,11 +559,11 @@ Default: True
-
31    class Tokenizer(Spark.Tokenizer):
-32        SINGLE_TOKENS = {
-33            **Spark.Tokenizer.SINGLE_TOKENS,
-34            "$": TokenType.PARAMETER,
-35        }
+            
33    class Tokenizer(Spark.Tokenizer):
+34        SINGLE_TOKENS = {
+35            **Spark.Tokenizer.SINGLE_TOKENS,
+36            "$": TokenType.PARAMETER,
+37        }
 
diff --git a/docs/sqlglot/dialects/dialect.html b/docs/sqlglot/dialects/dialect.html index dce43fd..6d80873 100644 --- a/docs/sqlglot/dialects/dialect.html +++ b/docs/sqlglot/dialects/dialect.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.dialect API documentation diff --git a/docs/sqlglot/dialects/drill.html b/docs/sqlglot/dialects/drill.html index e7c25e1..e6ed13c 100644 --- a/docs/sqlglot/dialects/drill.html +++ b/docs/sqlglot/dialects/drill.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.drill API documentation @@ -183,59 +183,61 @@
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.Pow: rename_func("POW"), -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.ToChar: lambda self, e: self.function_fallback_sql(e), -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 exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`" +104 LOG_DEFAULTS_TO_LN = True +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.RegexpLike: rename_func("REGEXP_MATCHES"), +141 exp.StrPosition: str_position_sql, +142 exp.StrToDate: _str_to_date, +143 exp.Pow: rename_func("POW"), +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.ToChar: lambda self, e: self.function_fallback_sql(e), +151 exp.TryCast: no_trycast_sql, +152 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')))})", +153 exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), +154 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", +155 } +156 +157 def normalize_func(self, name: str) -> str: +158 return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`"
@@ -306,59 +308,61 @@
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.Pow: rename_func("POW"), -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.ToChar: lambda self, e: self.function_fallback_sql(e), -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 exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`" +105 LOG_DEFAULTS_TO_LN = True +106 +107 class Generator(generator.Generator): +108 TYPE_MAPPING = { +109 **generator.Generator.TYPE_MAPPING, # type: ignore +110 exp.DataType.Type.INT: "INTEGER", +111 exp.DataType.Type.SMALLINT: "INTEGER", +112 exp.DataType.Type.TINYINT: "INTEGER", +113 exp.DataType.Type.BINARY: "VARBINARY", +114 exp.DataType.Type.TEXT: "VARCHAR", +115 exp.DataType.Type.NCHAR: "VARCHAR", +116 exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP", +117 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", +118 exp.DataType.Type.DATETIME: "TIMESTAMP", +119 } +120 +121 PROPERTIES_LOCATION = { +122 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +123 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, +124 } +125 +126 TRANSFORMS = { +127 **generator.Generator.TRANSFORMS, # type: ignore +128 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", +129 exp.ArrayContains: rename_func("REPEATED_CONTAINS"), +130 exp.ArraySize: rename_func("REPEATED_COUNT"), +131 exp.Create: create_with_partitions_sql, +132 exp.DateAdd: _date_add_sql("ADD"), +133 exp.DateStrToDate: datestrtodate_sql, +134 exp.DateSub: _date_add_sql("SUB"), +135 exp.DateToDi: lambda self, e: f"CAST(TO_DATE({self.sql(e, 'this')}, {Drill.dateint_format}) AS INT)", +136 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS VARCHAR), {Drill.dateint_format})", +137 exp.If: lambda self, e: f"`IF`({self.format_args(e.this, e.args.get('true'), e.args.get('false'))})", +138 exp.ILike: lambda self, e: f" {self.sql(e, 'this')} `ILIKE` {self.sql(e, 'expression')}", +139 exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"), +140 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", +141 exp.RegexpLike: rename_func("REGEXP_MATCHES"), +142 exp.StrPosition: str_position_sql, +143 exp.StrToDate: _str_to_date, +144 exp.Pow: rename_func("POW"), +145 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +146 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", +147 exp.TimeStrToTime: timestrtotime_sql, +148 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +149 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +150 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), +151 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +152 exp.TryCast: no_trycast_sql, +153 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')))})", +154 exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), +155 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", +156 } +157 +158 def normalize_func(self, name: str) -> str: +159 return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`" @@ -434,6 +438,8 @@ 101 "TO_TIMESTAMP": exp.TimeStrToTime.from_arg_list, 102 "TO_CHAR": format_time_lambda(exp.TimeToStr, "drill"), 103 } +104 +105 LOG_DEFAULTS_TO_LN = True @@ -490,59 +496,59 @@ Default: "nulls_are_small" -
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.Pow: rename_func("POW"),
-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.ToChar: lambda self, e: self.function_fallback_sql(e),
-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 exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`"
+            
107    class Generator(generator.Generator):
+108        TYPE_MAPPING = {
+109            **generator.Generator.TYPE_MAPPING,  # type: ignore
+110            exp.DataType.Type.INT: "INTEGER",
+111            exp.DataType.Type.SMALLINT: "INTEGER",
+112            exp.DataType.Type.TINYINT: "INTEGER",
+113            exp.DataType.Type.BINARY: "VARBINARY",
+114            exp.DataType.Type.TEXT: "VARCHAR",
+115            exp.DataType.Type.NCHAR: "VARCHAR",
+116            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
+117            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
+118            exp.DataType.Type.DATETIME: "TIMESTAMP",
+119        }
+120
+121        PROPERTIES_LOCATION = {
+122            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+123            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
+124        }
+125
+126        TRANSFORMS = {
+127            **generator.Generator.TRANSFORMS,  # type: ignore
+128            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
+129            exp.ArrayContains: rename_func("REPEATED_CONTAINS"),
+130            exp.ArraySize: rename_func("REPEATED_COUNT"),
+131            exp.Create: create_with_partitions_sql,
+132            exp.DateAdd: _date_add_sql("ADD"),
+133            exp.DateStrToDate: datestrtodate_sql,
+134            exp.DateSub: _date_add_sql("SUB"),
+135            exp.DateToDi: lambda self, e: f"CAST(TO_DATE({self.sql(e, 'this')}, {Drill.dateint_format}) AS INT)",
+136            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS VARCHAR), {Drill.dateint_format})",
+137            exp.If: lambda self, e: f"`IF`({self.format_args(e.this, e.args.get('true'), e.args.get('false'))})",
+138            exp.ILike: lambda self, e: f" {self.sql(e, 'this')} `ILIKE` {self.sql(e, 'expression')}",
+139            exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"),
+140            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
+141            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
+142            exp.StrPosition: str_position_sql,
+143            exp.StrToDate: _str_to_date,
+144            exp.Pow: rename_func("POW"),
+145            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
+146            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
+147            exp.TimeStrToTime: timestrtotime_sql,
+148            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
+149            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
+150            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
+151            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
+152            exp.TryCast: no_trycast_sql,
+153            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')))})",
+154            exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"),
+155            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)",
+156        }
+157
+158        def normalize_func(self, name: str) -> str:
+159            return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`"
 
@@ -601,8 +607,8 @@ Default: True
-
156        def normalize_func(self, name: str) -> str:
-157            return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`"
+            
158        def normalize_func(self, name: str) -> str:
+159            return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`"
 
@@ -628,6 +634,7 @@ Default: True
cache_sql
characterset_sql
column_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -745,6 +752,7 @@ Default: True
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -796,8 +804,10 @@ Default: True
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
diff --git a/docs/sqlglot/dialects/duckdb.html b/docs/sqlglot/dialects/duckdb.html index 4486029..da06284 100644 --- a/docs/sqlglot/dialects/duckdb.html +++ b/docs/sqlglot/dialects/duckdb.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.duckdb API documentation @@ -796,6 +796,7 @@ Default: True
cache_sql
characterset_sql
column_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -912,6 +913,7 @@ Default: True
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -963,8 +965,10 @@ Default: True
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
diff --git a/docs/sqlglot/dialects/hive.html b/docs/sqlglot/dialects/hive.html index d1b5e63..66a4b7f 100644 --- a/docs/sqlglot/dialects/hive.html +++ b/docs/sqlglot/dialects/hive.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.hive API documentation @@ -341,131 +341,130 @@
253 "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True), 254 "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list, 255 "LOCATE": locate_to_strposition, -256 "LOG": ( -257 lambda args: exp.Log.from_arg_list(args) -258 if len(args) > 1 -259 else exp.Ln.from_arg_list(args) -260 ), -261 "MAP": parse_var_map, -262 "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)), -263 "PERCENTILE": exp.Quantile.from_arg_list, -264 "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list, -265 "COLLECT_SET": exp.SetAgg.from_arg_list, -266 "SIZE": exp.ArraySize.from_arg_list, -267 "SPLIT": exp.RegexpSplit.from_arg_list, -268 "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), -269 "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), -270 "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), -271 } -272 -273 PROPERTY_PARSERS = { -274 **parser.Parser.PROPERTY_PARSERS, # type: ignore -275 "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties( -276 expressions=self._parse_wrapped_csv(self._parse_property) -277 ), -278 } -279 -280 class Generator(generator.Generator): -281 TYPE_MAPPING = { -282 **generator.Generator.TYPE_MAPPING, # type: ignore -283 exp.DataType.Type.TEXT: "STRING", -284 exp.DataType.Type.DATETIME: "TIMESTAMP", -285 exp.DataType.Type.VARBINARY: "BINARY", -286 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", -287 } -288 -289 TRANSFORMS = { -290 **generator.Generator.TRANSFORMS, # type: ignore -291 **transforms.UNALIAS_GROUP, # type: ignore -292 **transforms.ELIMINATE_QUALIFY, # type: ignore -293 exp.Property: _property_sql, -294 exp.ApproxDistinct: approx_count_distinct_sql, -295 exp.ArrayConcat: rename_func("CONCAT"), -296 exp.ArraySize: rename_func("SIZE"), -297 exp.ArraySort: _array_sort, -298 exp.With: no_recursive_cte_sql, -299 exp.DateAdd: _add_date_sql, -300 exp.DateDiff: _date_diff_sql, -301 exp.DateStrToDate: rename_func("TO_DATE"), -302 exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)", -303 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})", -304 exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}", -305 exp.If: if_sql, -306 exp.Index: _index_sql, -307 exp.ILike: no_ilike_sql, -308 exp.Join: _unnest_to_explode_sql, -309 exp.JSONExtract: rename_func("GET_JSON_OBJECT"), -310 exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), -311 exp.Map: var_map_sql, -312 exp.Max: max_or_greatest, -313 exp.Min: min_or_least, -314 exp.VarMap: var_map_sql, -315 exp.Create: create_with_partitions_sql, -316 exp.Quantile: rename_func("PERCENTILE"), -317 exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"), -318 exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"), -319 exp.RegexpSplit: rename_func("SPLIT"), -320 exp.SafeDivide: no_safe_divide_sql, -321 exp.SchemaCommentProperty: lambda self, e: self.naked_property(e), -322 exp.SetAgg: rename_func("COLLECT_SET"), -323 exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))", -324 exp.StrPosition: strposition_to_locate_sql, -325 exp.StrToDate: _str_to_date, -326 exp.StrToTime: _str_to_time, -327 exp.StrToUnix: _str_to_unix, -328 exp.StructExtract: struct_extract_sql, -329 exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}", -330 exp.TimeStrToDate: rename_func("TO_DATE"), -331 exp.TimeStrToTime: timestrtotime_sql, -332 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), -333 exp.TimeToStr: _time_to_str, -334 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), -335 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)", -336 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})", -337 exp.TsOrDsToDate: _to_date_sql, -338 exp.TryCast: no_trycast_sql, -339 exp.UnixToStr: lambda self, e: self.func( -340 "FROM_UNIXTIME", e.this, _time_format(self, e) -341 ), -342 exp.UnixToTime: rename_func("FROM_UNIXTIME"), -343 exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"), -344 exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}", -345 exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}", -346 exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"), -347 exp.NumberToStr: rename_func("FORMAT_NUMBER"), -348 exp.LastDateOfMonth: rename_func("LAST_DAY"), -349 } -350 -351 PROPERTIES_LOCATION = { -352 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -353 exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA, -354 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, -355 exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA, -356 } -357 -358 LIMIT_FETCH = "LIMIT" -359 -360 def arrayagg_sql(self, expression: exp.ArrayAgg) -> str: -361 return self.func( -362 "COLLECT_LIST", -363 expression.this.this if isinstance(expression.this, exp.Order) else expression.this, -364 ) -365 -366 def with_properties(self, properties: exp.Properties) -> str: -367 return self.properties( -368 properties, -369 prefix=self.seg("TBLPROPERTIES"), -370 ) -371 -372 def datatype_sql(self, expression: exp.DataType) -> str: -373 if ( -374 expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR) -375 and not expression.expressions -376 ): -377 expression = exp.DataType.build("text") -378 elif expression.this in exp.DataType.TEMPORAL_TYPES: -379 expression = exp.DataType.build(expression.this) -380 return super().datatype_sql(expression) +256 "MAP": parse_var_map, +257 "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)), +258 "PERCENTILE": exp.Quantile.from_arg_list, +259 "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list, +260 "COLLECT_SET": exp.SetAgg.from_arg_list, +261 "SIZE": exp.ArraySize.from_arg_list, +262 "SPLIT": exp.RegexpSplit.from_arg_list, +263 "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), +264 "TO_JSON": exp.JSONFormat.from_arg_list, +265 "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), +266 "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), +267 } +268 +269 PROPERTY_PARSERS = { +270 **parser.Parser.PROPERTY_PARSERS, # type: ignore +271 "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties( +272 expressions=self._parse_wrapped_csv(self._parse_property) +273 ), +274 } +275 +276 LOG_DEFAULTS_TO_LN = True +277 +278 class Generator(generator.Generator): +279 TYPE_MAPPING = { +280 **generator.Generator.TYPE_MAPPING, # type: ignore +281 exp.DataType.Type.TEXT: "STRING", +282 exp.DataType.Type.DATETIME: "TIMESTAMP", +283 exp.DataType.Type.VARBINARY: "BINARY", +284 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", +285 } +286 +287 TRANSFORMS = { +288 **generator.Generator.TRANSFORMS, # type: ignore +289 **transforms.UNALIAS_GROUP, # type: ignore +290 **transforms.ELIMINATE_QUALIFY, # type: ignore +291 exp.Property: _property_sql, +292 exp.ApproxDistinct: approx_count_distinct_sql, +293 exp.ArrayConcat: rename_func("CONCAT"), +294 exp.ArraySize: rename_func("SIZE"), +295 exp.ArraySort: _array_sort, +296 exp.With: no_recursive_cte_sql, +297 exp.DateAdd: _add_date_sql, +298 exp.DateDiff: _date_diff_sql, +299 exp.DateStrToDate: rename_func("TO_DATE"), +300 exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)", +301 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})", +302 exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}", +303 exp.If: if_sql, +304 exp.Index: _index_sql, +305 exp.ILike: no_ilike_sql, +306 exp.Join: _unnest_to_explode_sql, +307 exp.JSONExtract: rename_func("GET_JSON_OBJECT"), +308 exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), +309 exp.JSONFormat: rename_func("TO_JSON"), +310 exp.Map: var_map_sql, +311 exp.Max: max_or_greatest, +312 exp.Min: min_or_least, +313 exp.VarMap: var_map_sql, +314 exp.Create: create_with_partitions_sql, +315 exp.Quantile: rename_func("PERCENTILE"), +316 exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"), +317 exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"), +318 exp.RegexpSplit: rename_func("SPLIT"), +319 exp.SafeDivide: no_safe_divide_sql, +320 exp.SchemaCommentProperty: lambda self, e: self.naked_property(e), +321 exp.SetAgg: rename_func("COLLECT_SET"), +322 exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))", +323 exp.StrPosition: strposition_to_locate_sql, +324 exp.StrToDate: _str_to_date, +325 exp.StrToTime: _str_to_time, +326 exp.StrToUnix: _str_to_unix, +327 exp.StructExtract: struct_extract_sql, +328 exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}", +329 exp.TimeStrToDate: rename_func("TO_DATE"), +330 exp.TimeStrToTime: timestrtotime_sql, +331 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +332 exp.TimeToStr: _time_to_str, +333 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), +334 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)", +335 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})", +336 exp.TsOrDsToDate: _to_date_sql, +337 exp.TryCast: no_trycast_sql, +338 exp.UnixToStr: lambda self, e: self.func( +339 "FROM_UNIXTIME", e.this, _time_format(self, e) +340 ), +341 exp.UnixToTime: rename_func("FROM_UNIXTIME"), +342 exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"), +343 exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}", +344 exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}", +345 exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"), +346 exp.NumberToStr: rename_func("FORMAT_NUMBER"), +347 exp.LastDateOfMonth: rename_func("LAST_DAY"), +348 } +349 +350 PROPERTIES_LOCATION = { +351 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +352 exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA, +353 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, +354 exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA, +355 } +356 +357 LIMIT_FETCH = "LIMIT" +358 +359 def arrayagg_sql(self, expression: exp.ArrayAgg) -> str: +360 return self.func( +361 "COLLECT_LIST", +362 expression.this.this if isinstance(expression.this, exp.Order) else expression.this, +363 ) +364 +365 def with_properties(self, properties: exp.Properties) -> str: +366 return self.properties( +367 properties, +368 prefix=self.seg("TBLPROPERTIES"), +369 ) +370 +371 def datatype_sql(self, expression: exp.DataType) -> str: +372 if ( +373 expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR) +374 and not expression.expressions +375 ): +376 expression = exp.DataType.build("text") +377 elif expression.this in exp.DataType.TEMPORAL_TYPES: +378 expression = exp.DataType.build(expression.this) +379 return super().datatype_sql(expression)
@@ -582,131 +581,130 @@ 254 "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True), 255 "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list, 256 "LOCATE": locate_to_strposition, -257 "LOG": ( -258 lambda args: exp.Log.from_arg_list(args) -259 if len(args) > 1 -260 else exp.Ln.from_arg_list(args) -261 ), -262 "MAP": parse_var_map, -263 "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)), -264 "PERCENTILE": exp.Quantile.from_arg_list, -265 "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list, -266 "COLLECT_SET": exp.SetAgg.from_arg_list, -267 "SIZE": exp.ArraySize.from_arg_list, -268 "SPLIT": exp.RegexpSplit.from_arg_list, -269 "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), -270 "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), -271 "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), -272 } -273 -274 PROPERTY_PARSERS = { -275 **parser.Parser.PROPERTY_PARSERS, # type: ignore -276 "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties( -277 expressions=self._parse_wrapped_csv(self._parse_property) -278 ), -279 } -280 -281 class Generator(generator.Generator): -282 TYPE_MAPPING = { -283 **generator.Generator.TYPE_MAPPING, # type: ignore -284 exp.DataType.Type.TEXT: "STRING", -285 exp.DataType.Type.DATETIME: "TIMESTAMP", -286 exp.DataType.Type.VARBINARY: "BINARY", -287 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", -288 } -289 -290 TRANSFORMS = { -291 **generator.Generator.TRANSFORMS, # type: ignore -292 **transforms.UNALIAS_GROUP, # type: ignore -293 **transforms.ELIMINATE_QUALIFY, # type: ignore -294 exp.Property: _property_sql, -295 exp.ApproxDistinct: approx_count_distinct_sql, -296 exp.ArrayConcat: rename_func("CONCAT"), -297 exp.ArraySize: rename_func("SIZE"), -298 exp.ArraySort: _array_sort, -299 exp.With: no_recursive_cte_sql, -300 exp.DateAdd: _add_date_sql, -301 exp.DateDiff: _date_diff_sql, -302 exp.DateStrToDate: rename_func("TO_DATE"), -303 exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)", -304 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})", -305 exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}", -306 exp.If: if_sql, -307 exp.Index: _index_sql, -308 exp.ILike: no_ilike_sql, -309 exp.Join: _unnest_to_explode_sql, -310 exp.JSONExtract: rename_func("GET_JSON_OBJECT"), -311 exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), -312 exp.Map: var_map_sql, -313 exp.Max: max_or_greatest, -314 exp.Min: min_or_least, -315 exp.VarMap: var_map_sql, -316 exp.Create: create_with_partitions_sql, -317 exp.Quantile: rename_func("PERCENTILE"), -318 exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"), -319 exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"), -320 exp.RegexpSplit: rename_func("SPLIT"), -321 exp.SafeDivide: no_safe_divide_sql, -322 exp.SchemaCommentProperty: lambda self, e: self.naked_property(e), -323 exp.SetAgg: rename_func("COLLECT_SET"), -324 exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))", -325 exp.StrPosition: strposition_to_locate_sql, -326 exp.StrToDate: _str_to_date, -327 exp.StrToTime: _str_to_time, -328 exp.StrToUnix: _str_to_unix, -329 exp.StructExtract: struct_extract_sql, -330 exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}", -331 exp.TimeStrToDate: rename_func("TO_DATE"), -332 exp.TimeStrToTime: timestrtotime_sql, -333 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), -334 exp.TimeToStr: _time_to_str, -335 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), -336 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)", -337 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})", -338 exp.TsOrDsToDate: _to_date_sql, -339 exp.TryCast: no_trycast_sql, -340 exp.UnixToStr: lambda self, e: self.func( -341 "FROM_UNIXTIME", e.this, _time_format(self, e) -342 ), -343 exp.UnixToTime: rename_func("FROM_UNIXTIME"), -344 exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"), -345 exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}", -346 exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}", -347 exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"), -348 exp.NumberToStr: rename_func("FORMAT_NUMBER"), -349 exp.LastDateOfMonth: rename_func("LAST_DAY"), -350 } -351 -352 PROPERTIES_LOCATION = { -353 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -354 exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA, -355 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, -356 exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA, -357 } -358 -359 LIMIT_FETCH = "LIMIT" -360 -361 def arrayagg_sql(self, expression: exp.ArrayAgg) -> str: -362 return self.func( -363 "COLLECT_LIST", -364 expression.this.this if isinstance(expression.this, exp.Order) else expression.this, -365 ) -366 -367 def with_properties(self, properties: exp.Properties) -> str: -368 return self.properties( -369 properties, -370 prefix=self.seg("TBLPROPERTIES"), -371 ) -372 -373 def datatype_sql(self, expression: exp.DataType) -> str: -374 if ( -375 expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR) -376 and not expression.expressions -377 ): -378 expression = exp.DataType.build("text") -379 elif expression.this in exp.DataType.TEMPORAL_TYPES: -380 expression = exp.DataType.build(expression.this) -381 return super().datatype_sql(expression) +257 "MAP": parse_var_map, +258 "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)), +259 "PERCENTILE": exp.Quantile.from_arg_list, +260 "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list, +261 "COLLECT_SET": exp.SetAgg.from_arg_list, +262 "SIZE": exp.ArraySize.from_arg_list, +263 "SPLIT": exp.RegexpSplit.from_arg_list, +264 "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), +265 "TO_JSON": exp.JSONFormat.from_arg_list, +266 "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), +267 "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), +268 } +269 +270 PROPERTY_PARSERS = { +271 **parser.Parser.PROPERTY_PARSERS, # type: ignore +272 "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties( +273 expressions=self._parse_wrapped_csv(self._parse_property) +274 ), +275 } +276 +277 LOG_DEFAULTS_TO_LN = True +278 +279 class Generator(generator.Generator): +280 TYPE_MAPPING = { +281 **generator.Generator.TYPE_MAPPING, # type: ignore +282 exp.DataType.Type.TEXT: "STRING", +283 exp.DataType.Type.DATETIME: "TIMESTAMP", +284 exp.DataType.Type.VARBINARY: "BINARY", +285 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", +286 } +287 +288 TRANSFORMS = { +289 **generator.Generator.TRANSFORMS, # type: ignore +290 **transforms.UNALIAS_GROUP, # type: ignore +291 **transforms.ELIMINATE_QUALIFY, # type: ignore +292 exp.Property: _property_sql, +293 exp.ApproxDistinct: approx_count_distinct_sql, +294 exp.ArrayConcat: rename_func("CONCAT"), +295 exp.ArraySize: rename_func("SIZE"), +296 exp.ArraySort: _array_sort, +297 exp.With: no_recursive_cte_sql, +298 exp.DateAdd: _add_date_sql, +299 exp.DateDiff: _date_diff_sql, +300 exp.DateStrToDate: rename_func("TO_DATE"), +301 exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)", +302 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})", +303 exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}", +304 exp.If: if_sql, +305 exp.Index: _index_sql, +306 exp.ILike: no_ilike_sql, +307 exp.Join: _unnest_to_explode_sql, +308 exp.JSONExtract: rename_func("GET_JSON_OBJECT"), +309 exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), +310 exp.JSONFormat: rename_func("TO_JSON"), +311 exp.Map: var_map_sql, +312 exp.Max: max_or_greatest, +313 exp.Min: min_or_least, +314 exp.VarMap: var_map_sql, +315 exp.Create: create_with_partitions_sql, +316 exp.Quantile: rename_func("PERCENTILE"), +317 exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"), +318 exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"), +319 exp.RegexpSplit: rename_func("SPLIT"), +320 exp.SafeDivide: no_safe_divide_sql, +321 exp.SchemaCommentProperty: lambda self, e: self.naked_property(e), +322 exp.SetAgg: rename_func("COLLECT_SET"), +323 exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))", +324 exp.StrPosition: strposition_to_locate_sql, +325 exp.StrToDate: _str_to_date, +326 exp.StrToTime: _str_to_time, +327 exp.StrToUnix: _str_to_unix, +328 exp.StructExtract: struct_extract_sql, +329 exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}", +330 exp.TimeStrToDate: rename_func("TO_DATE"), +331 exp.TimeStrToTime: timestrtotime_sql, +332 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +333 exp.TimeToStr: _time_to_str, +334 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), +335 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)", +336 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})", +337 exp.TsOrDsToDate: _to_date_sql, +338 exp.TryCast: no_trycast_sql, +339 exp.UnixToStr: lambda self, e: self.func( +340 "FROM_UNIXTIME", e.this, _time_format(self, e) +341 ), +342 exp.UnixToTime: rename_func("FROM_UNIXTIME"), +343 exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"), +344 exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}", +345 exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}", +346 exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"), +347 exp.NumberToStr: rename_func("FORMAT_NUMBER"), +348 exp.LastDateOfMonth: rename_func("LAST_DAY"), +349 } +350 +351 PROPERTIES_LOCATION = { +352 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +353 exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA, +354 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, +355 exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA, +356 } +357 +358 LIMIT_FETCH = "LIMIT" +359 +360 def arrayagg_sql(self, expression: exp.ArrayAgg) -> str: +361 return self.func( +362 "COLLECT_LIST", +363 expression.this.this if isinstance(expression.this, exp.Order) else expression.this, +364 ) +365 +366 def with_properties(self, properties: exp.Properties) -> str: +367 return self.properties( +368 properties, +369 prefix=self.seg("TBLPROPERTIES"), +370 ) +371 +372 def datatype_sql(self, expression: exp.DataType) -> str: +373 if ( +374 expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR) +375 and not expression.expressions +376 ): +377 expression = exp.DataType.build("text") +378 elif expression.this in exp.DataType.TEMPORAL_TYPES: +379 expression = exp.DataType.build(expression.this) +380 return super().datatype_sql(expression) @@ -830,29 +828,27 @@ 254 "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True), 255 "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list, 256 "LOCATE": locate_to_strposition, -257 "LOG": ( -258 lambda args: exp.Log.from_arg_list(args) -259 if len(args) > 1 -260 else exp.Ln.from_arg_list(args) -261 ), -262 "MAP": parse_var_map, -263 "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)), -264 "PERCENTILE": exp.Quantile.from_arg_list, -265 "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list, -266 "COLLECT_SET": exp.SetAgg.from_arg_list, -267 "SIZE": exp.ArraySize.from_arg_list, -268 "SPLIT": exp.RegexpSplit.from_arg_list, -269 "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), -270 "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), -271 "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), -272 } -273 -274 PROPERTY_PARSERS = { -275 **parser.Parser.PROPERTY_PARSERS, # type: ignore -276 "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties( -277 expressions=self._parse_wrapped_csv(self._parse_property) -278 ), -279 } +257 "MAP": parse_var_map, +258 "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)), +259 "PERCENTILE": exp.Quantile.from_arg_list, +260 "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list, +261 "COLLECT_SET": exp.SetAgg.from_arg_list, +262 "SIZE": exp.ArraySize.from_arg_list, +263 "SPLIT": exp.RegexpSplit.from_arg_list, +264 "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), +265 "TO_JSON": exp.JSONFormat.from_arg_list, +266 "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), +267 "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), +268 } +269 +270 PROPERTY_PARSERS = { +271 **parser.Parser.PROPERTY_PARSERS, # type: ignore +272 "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties( +273 expressions=self._parse_wrapped_csv(self._parse_property) +274 ), +275 } +276 +277 LOG_DEFAULTS_TO_LN = True @@ -909,107 +905,108 @@ Default: "nulls_are_small" -
281    class Generator(generator.Generator):
-282        TYPE_MAPPING = {
-283            **generator.Generator.TYPE_MAPPING,  # type: ignore
-284            exp.DataType.Type.TEXT: "STRING",
-285            exp.DataType.Type.DATETIME: "TIMESTAMP",
-286            exp.DataType.Type.VARBINARY: "BINARY",
-287            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
-288        }
-289
-290        TRANSFORMS = {
-291            **generator.Generator.TRANSFORMS,  # type: ignore
-292            **transforms.UNALIAS_GROUP,  # type: ignore
-293            **transforms.ELIMINATE_QUALIFY,  # type: ignore
-294            exp.Property: _property_sql,
-295            exp.ApproxDistinct: approx_count_distinct_sql,
-296            exp.ArrayConcat: rename_func("CONCAT"),
-297            exp.ArraySize: rename_func("SIZE"),
-298            exp.ArraySort: _array_sort,
-299            exp.With: no_recursive_cte_sql,
-300            exp.DateAdd: _add_date_sql,
-301            exp.DateDiff: _date_diff_sql,
-302            exp.DateStrToDate: rename_func("TO_DATE"),
-303            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)",
-304            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})",
-305            exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}",
-306            exp.If: if_sql,
-307            exp.Index: _index_sql,
-308            exp.ILike: no_ilike_sql,
-309            exp.Join: _unnest_to_explode_sql,
-310            exp.JSONExtract: rename_func("GET_JSON_OBJECT"),
-311            exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"),
-312            exp.Map: var_map_sql,
-313            exp.Max: max_or_greatest,
-314            exp.Min: min_or_least,
-315            exp.VarMap: var_map_sql,
-316            exp.Create: create_with_partitions_sql,
-317            exp.Quantile: rename_func("PERCENTILE"),
-318            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
-319            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
-320            exp.RegexpSplit: rename_func("SPLIT"),
-321            exp.SafeDivide: no_safe_divide_sql,
-322            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
-323            exp.SetAgg: rename_func("COLLECT_SET"),
-324            exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))",
-325            exp.StrPosition: strposition_to_locate_sql,
-326            exp.StrToDate: _str_to_date,
-327            exp.StrToTime: _str_to_time,
-328            exp.StrToUnix: _str_to_unix,
-329            exp.StructExtract: struct_extract_sql,
-330            exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}",
-331            exp.TimeStrToDate: rename_func("TO_DATE"),
-332            exp.TimeStrToTime: timestrtotime_sql,
-333            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
-334            exp.TimeToStr: _time_to_str,
-335            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
-336            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
-337            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
-338            exp.TsOrDsToDate: _to_date_sql,
-339            exp.TryCast: no_trycast_sql,
-340            exp.UnixToStr: lambda self, e: self.func(
-341                "FROM_UNIXTIME", e.this, _time_format(self, e)
-342            ),
-343            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
-344            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
-345            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
-346            exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}",
-347            exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"),
-348            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
-349            exp.LastDateOfMonth: rename_func("LAST_DAY"),
-350        }
-351
-352        PROPERTIES_LOCATION = {
-353            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
-354            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
-355            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
-356            exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA,
-357        }
-358
-359        LIMIT_FETCH = "LIMIT"
-360
-361        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
-362            return self.func(
-363                "COLLECT_LIST",
-364                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
-365            )
-366
-367        def with_properties(self, properties: exp.Properties) -> str:
-368            return self.properties(
-369                properties,
-370                prefix=self.seg("TBLPROPERTIES"),
-371            )
-372
-373        def datatype_sql(self, expression: exp.DataType) -> str:
-374            if (
-375                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
-376                and not expression.expressions
-377            ):
-378                expression = exp.DataType.build("text")
-379            elif expression.this in exp.DataType.TEMPORAL_TYPES:
-380                expression = exp.DataType.build(expression.this)
-381            return super().datatype_sql(expression)
+            
279    class Generator(generator.Generator):
+280        TYPE_MAPPING = {
+281            **generator.Generator.TYPE_MAPPING,  # type: ignore
+282            exp.DataType.Type.TEXT: "STRING",
+283            exp.DataType.Type.DATETIME: "TIMESTAMP",
+284            exp.DataType.Type.VARBINARY: "BINARY",
+285            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
+286        }
+287
+288        TRANSFORMS = {
+289            **generator.Generator.TRANSFORMS,  # type: ignore
+290            **transforms.UNALIAS_GROUP,  # type: ignore
+291            **transforms.ELIMINATE_QUALIFY,  # type: ignore
+292            exp.Property: _property_sql,
+293            exp.ApproxDistinct: approx_count_distinct_sql,
+294            exp.ArrayConcat: rename_func("CONCAT"),
+295            exp.ArraySize: rename_func("SIZE"),
+296            exp.ArraySort: _array_sort,
+297            exp.With: no_recursive_cte_sql,
+298            exp.DateAdd: _add_date_sql,
+299            exp.DateDiff: _date_diff_sql,
+300            exp.DateStrToDate: rename_func("TO_DATE"),
+301            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)",
+302            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})",
+303            exp.FileFormatProperty: lambda self, e: f"STORED AS {e.name.upper()}",
+304            exp.If: if_sql,
+305            exp.Index: _index_sql,
+306            exp.ILike: no_ilike_sql,
+307            exp.Join: _unnest_to_explode_sql,
+308            exp.JSONExtract: rename_func("GET_JSON_OBJECT"),
+309            exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"),
+310            exp.JSONFormat: rename_func("TO_JSON"),
+311            exp.Map: var_map_sql,
+312            exp.Max: max_or_greatest,
+313            exp.Min: min_or_least,
+314            exp.VarMap: var_map_sql,
+315            exp.Create: create_with_partitions_sql,
+316            exp.Quantile: rename_func("PERCENTILE"),
+317            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
+318            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
+319            exp.RegexpSplit: rename_func("SPLIT"),
+320            exp.SafeDivide: no_safe_divide_sql,
+321            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
+322            exp.SetAgg: rename_func("COLLECT_SET"),
+323            exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))",
+324            exp.StrPosition: strposition_to_locate_sql,
+325            exp.StrToDate: _str_to_date,
+326            exp.StrToTime: _str_to_time,
+327            exp.StrToUnix: _str_to_unix,
+328            exp.StructExtract: struct_extract_sql,
+329            exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}",
+330            exp.TimeStrToDate: rename_func("TO_DATE"),
+331            exp.TimeStrToTime: timestrtotime_sql,
+332            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
+333            exp.TimeToStr: _time_to_str,
+334            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
+335            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
+336            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
+337            exp.TsOrDsToDate: _to_date_sql,
+338            exp.TryCast: no_trycast_sql,
+339            exp.UnixToStr: lambda self, e: self.func(
+340                "FROM_UNIXTIME", e.this, _time_format(self, e)
+341            ),
+342            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
+343            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
+344            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
+345            exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}",
+346            exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"),
+347            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
+348            exp.LastDateOfMonth: rename_func("LAST_DAY"),
+349        }
+350
+351        PROPERTIES_LOCATION = {
+352            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+353            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
+354            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
+355            exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA,
+356        }
+357
+358        LIMIT_FETCH = "LIMIT"
+359
+360        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
+361            return self.func(
+362                "COLLECT_LIST",
+363                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
+364            )
+365
+366        def with_properties(self, properties: exp.Properties) -> str:
+367            return self.properties(
+368                properties,
+369                prefix=self.seg("TBLPROPERTIES"),
+370            )
+371
+372        def datatype_sql(self, expression: exp.DataType) -> str:
+373            if (
+374                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
+375                and not expression.expressions
+376            ):
+377                expression = exp.DataType.build("text")
+378            elif expression.this in exp.DataType.TEMPORAL_TYPES:
+379                expression = exp.DataType.build(expression.this)
+380            return super().datatype_sql(expression)
 
@@ -1068,11 +1065,11 @@ Default: True
-
361        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
-362            return self.func(
-363                "COLLECT_LIST",
-364                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
-365            )
+            
360        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
+361            return self.func(
+362                "COLLECT_LIST",
+363                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
+364            )
 
@@ -1090,11 +1087,11 @@ Default: True
-
367        def with_properties(self, properties: exp.Properties) -> str:
-368            return self.properties(
-369                properties,
-370                prefix=self.seg("TBLPROPERTIES"),
-371            )
+            
366        def with_properties(self, properties: exp.Properties) -> str:
+367            return self.properties(
+368                properties,
+369                prefix=self.seg("TBLPROPERTIES"),
+370            )
 
@@ -1112,15 +1109,15 @@ Default: True
-
373        def datatype_sql(self, expression: exp.DataType) -> str:
-374            if (
-375                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
-376                and not expression.expressions
-377            ):
-378                expression = exp.DataType.build("text")
-379            elif expression.this in exp.DataType.TEMPORAL_TYPES:
-380                expression = exp.DataType.build(expression.this)
-381            return super().datatype_sql(expression)
+            
372        def datatype_sql(self, expression: exp.DataType) -> str:
+373            if (
+374                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
+375                and not expression.expressions
+376            ):
+377                expression = exp.DataType.build("text")
+378            elif expression.this in exp.DataType.TEMPORAL_TYPES:
+379                expression = exp.DataType.build(expression.this)
+380            return super().datatype_sql(expression)
 
@@ -1147,6 +1144,7 @@ Default: True
cache_sql
characterset_sql
column_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -1262,6 +1260,7 @@ Default: True
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -1313,8 +1312,10 @@ Default: True
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
diff --git a/docs/sqlglot/dialects/mysql.html b/docs/sqlglot/dialects/mysql.html index 166cd1a..b6d8558 100644 --- a/docs/sqlglot/dialects/mysql.html +++ b/docs/sqlglot/dialects/mysql.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.mysql API documentation @@ -372,196 +372,198 @@
290 "SWAPS", 291 } 292 -293 def _parse_show_mysql(self, this, target=False, full=None, global_=None): -294 if target: -295 if isinstance(target, str): -296 self._match_text_seq(target) -297 target_id = self._parse_id_var() -298 else: -299 target_id = None -300 -301 log = self._parse_string() if self._match_text_seq("IN") else None +293 LOG_DEFAULTS_TO_LN = True +294 +295 def _parse_show_mysql(self, this, target=False, full=None, global_=None): +296 if target: +297 if isinstance(target, str): +298 self._match_text_seq(target) +299 target_id = self._parse_id_var() +300 else: +301 target_id = None 302 -303 if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}: -304 position = self._parse_number() if self._match_text_seq("FROM") else None -305 db = None -306 else: -307 position = None -308 db = None -309 -310 if self._match(TokenType.FROM): -311 db = self._parse_id_var() -312 elif self._match(TokenType.DOT): -313 db = target_id -314 target_id = self._parse_id_var() -315 -316 channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None +303 log = self._parse_string() if self._match_text_seq("IN") else None +304 +305 if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}: +306 position = self._parse_number() if self._match_text_seq("FROM") else None +307 db = None +308 else: +309 position = None +310 db = None +311 +312 if self._match(TokenType.FROM): +313 db = self._parse_id_var() +314 elif self._match(TokenType.DOT): +315 db = target_id +316 target_id = self._parse_id_var() 317 -318 like = self._parse_string() if self._match_text_seq("LIKE") else None -319 where = self._parse_where() -320 -321 if this == "PROFILE": -322 types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES)) -323 query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None -324 offset = self._parse_number() if self._match_text_seq("OFFSET") else None -325 limit = self._parse_number() if self._match_text_seq("LIMIT") else None -326 else: -327 types, query = None, None -328 offset, limit = self._parse_oldstyle_limit() -329 -330 mutex = True if self._match_text_seq("MUTEX") else None -331 mutex = False if self._match_text_seq("STATUS") else mutex -332 -333 return self.expression( -334 exp.Show, -335 this=this, -336 target=target_id, -337 full=full, -338 log=log, -339 position=position, -340 db=db, -341 channel=channel, -342 like=like, -343 where=where, -344 types=types, -345 query=query, -346 offset=offset, -347 limit=limit, -348 mutex=mutex, -349 **{"global": global_}, -350 ) -351 -352 def _parse_oldstyle_limit(self): -353 limit = None -354 offset = None -355 if self._match_text_seq("LIMIT"): -356 parts = self._parse_csv(self._parse_number) -357 if len(parts) == 1: -358 limit = parts[0] -359 elif len(parts) == 2: -360 limit = parts[1] -361 offset = parts[0] -362 return offset, limit -363 -364 def _parse_set_item_charset(self, kind): -365 this = self._parse_string() or self._parse_id_var() -366 -367 return self.expression( -368 exp.SetItem, -369 this=this, -370 kind=kind, -371 ) -372 -373 def _parse_set_item_names(self): -374 charset = self._parse_string() or self._parse_id_var() -375 if self._match_text_seq("COLLATE"): -376 collate = self._parse_string() or self._parse_id_var() -377 else: -378 collate = None -379 return self.expression( -380 exp.SetItem, -381 this=charset, -382 collate=collate, -383 kind="NAMES", -384 ) -385 -386 class Generator(generator.Generator): -387 LOCKING_READS_SUPPORTED = True -388 NULL_ORDERING_SUPPORTED = False -389 -390 TRANSFORMS = { -391 **generator.Generator.TRANSFORMS, # type: ignore -392 exp.CurrentDate: no_paren_current_date_sql, -393 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", -394 exp.ILike: no_ilike_sql, -395 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, -396 exp.Max: max_or_greatest, -397 exp.Min: min_or_least, -398 exp.TableSample: no_tablesample_sql, -399 exp.TryCast: no_trycast_sql, -400 exp.DateAdd: _date_add_sql("ADD"), -401 exp.DateDiff: lambda self, e: f"DATEDIFF({self.format_args(e.this, e.expression)})", -402 exp.DateSub: _date_add_sql("SUB"), -403 exp.DateTrunc: _date_trunc_sql, -404 exp.DayOfWeek: rename_func("DAYOFWEEK"), -405 exp.DayOfMonth: rename_func("DAYOFMONTH"), -406 exp.DayOfYear: rename_func("DAYOFYEAR"), -407 exp.WeekOfYear: rename_func("WEEKOFYEAR"), -408 exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""", -409 exp.StrToDate: _str_to_date_sql, -410 exp.StrToTime: _str_to_date_sql, -411 exp.Trim: _trim_sql, -412 exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), -413 exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), -414 exp.StrPosition: strposition_to_locate_sql, -415 } -416 -417 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() -418 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) -419 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) -420 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) -421 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) -422 -423 PROPERTIES_LOCATION = { -424 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -425 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, -426 } -427 -428 LIMIT_FETCH = "LIMIT" +318 channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None +319 +320 like = self._parse_string() if self._match_text_seq("LIKE") else None +321 where = self._parse_where() +322 +323 if this == "PROFILE": +324 types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES)) +325 query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None +326 offset = self._parse_number() if self._match_text_seq("OFFSET") else None +327 limit = self._parse_number() if self._match_text_seq("LIMIT") else None +328 else: +329 types, query = None, None +330 offset, limit = self._parse_oldstyle_limit() +331 +332 mutex = True if self._match_text_seq("MUTEX") else None +333 mutex = False if self._match_text_seq("STATUS") else mutex +334 +335 return self.expression( +336 exp.Show, +337 this=this, +338 target=target_id, +339 full=full, +340 log=log, +341 position=position, +342 db=db, +343 channel=channel, +344 like=like, +345 where=where, +346 types=types, +347 query=query, +348 offset=offset, +349 limit=limit, +350 mutex=mutex, +351 **{"global": global_}, +352 ) +353 +354 def _parse_oldstyle_limit(self): +355 limit = None +356 offset = None +357 if self._match_text_seq("LIMIT"): +358 parts = self._parse_csv(self._parse_number) +359 if len(parts) == 1: +360 limit = parts[0] +361 elif len(parts) == 2: +362 limit = parts[1] +363 offset = parts[0] +364 return offset, limit +365 +366 def _parse_set_item_charset(self, kind): +367 this = self._parse_string() or self._parse_id_var() +368 +369 return self.expression( +370 exp.SetItem, +371 this=this, +372 kind=kind, +373 ) +374 +375 def _parse_set_item_names(self): +376 charset = self._parse_string() or self._parse_id_var() +377 if self._match_text_seq("COLLATE"): +378 collate = self._parse_string() or self._parse_id_var() +379 else: +380 collate = None +381 return self.expression( +382 exp.SetItem, +383 this=charset, +384 collate=collate, +385 kind="NAMES", +386 ) +387 +388 class Generator(generator.Generator): +389 LOCKING_READS_SUPPORTED = True +390 NULL_ORDERING_SUPPORTED = False +391 +392 TRANSFORMS = { +393 **generator.Generator.TRANSFORMS, # type: ignore +394 exp.CurrentDate: no_paren_current_date_sql, +395 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", +396 exp.ILike: no_ilike_sql, +397 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, +398 exp.Max: max_or_greatest, +399 exp.Min: min_or_least, +400 exp.TableSample: no_tablesample_sql, +401 exp.TryCast: no_trycast_sql, +402 exp.DateAdd: _date_add_sql("ADD"), +403 exp.DateDiff: lambda self, e: f"DATEDIFF({self.format_args(e.this, e.expression)})", +404 exp.DateSub: _date_add_sql("SUB"), +405 exp.DateTrunc: _date_trunc_sql, +406 exp.DayOfWeek: rename_func("DAYOFWEEK"), +407 exp.DayOfMonth: rename_func("DAYOFMONTH"), +408 exp.DayOfYear: rename_func("DAYOFYEAR"), +409 exp.WeekOfYear: rename_func("WEEKOFYEAR"), +410 exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""", +411 exp.StrToDate: _str_to_date_sql, +412 exp.StrToTime: _str_to_date_sql, +413 exp.Trim: _trim_sql, +414 exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), +415 exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), +416 exp.StrPosition: strposition_to_locate_sql, +417 } +418 +419 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() +420 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) +421 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) +422 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) +423 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) +424 +425 PROPERTIES_LOCATION = { +426 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +427 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, +428 } 429 -430 def show_sql(self, expression): -431 this = f" {expression.name}" -432 full = " FULL" if expression.args.get("full") else "" -433 global_ = " GLOBAL" if expression.args.get("global") else "" -434 -435 target = self.sql(expression, "target") -436 target = f" {target}" if target else "" -437 if expression.name in {"COLUMNS", "INDEX"}: -438 target = f" FROM{target}" -439 elif expression.name == "GRANTS": -440 target = f" FOR{target}" -441 -442 db = self._prefixed_sql("FROM", expression, "db") +430 LIMIT_FETCH = "LIMIT" +431 +432 def show_sql(self, expression: exp.Show) -> str: +433 this = f" {expression.name}" +434 full = " FULL" if expression.args.get("full") else "" +435 global_ = " GLOBAL" if expression.args.get("global") else "" +436 +437 target = self.sql(expression, "target") +438 target = f" {target}" if target else "" +439 if expression.name in {"COLUMNS", "INDEX"}: +440 target = f" FROM{target}" +441 elif expression.name == "GRANTS": +442 target = f" FOR{target}" 443 -444 like = self._prefixed_sql("LIKE", expression, "like") -445 where = self.sql(expression, "where") -446 -447 types = self.expressions(expression, key="types") -448 types = f" {types}" if types else types -449 query = self._prefixed_sql("FOR QUERY", expression, "query") -450 -451 if expression.name == "PROFILE": -452 offset = self._prefixed_sql("OFFSET", expression, "offset") -453 limit = self._prefixed_sql("LIMIT", expression, "limit") -454 else: -455 offset = "" -456 limit = self._oldstyle_limit_sql(expression) -457 -458 log = self._prefixed_sql("IN", expression, "log") -459 position = self._prefixed_sql("FROM", expression, "position") -460 -461 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") +444 db = self._prefixed_sql("FROM", expression, "db") +445 +446 like = self._prefixed_sql("LIKE", expression, "like") +447 where = self.sql(expression, "where") +448 +449 types = self.expressions(expression, key="types") +450 types = f" {types}" if types else types +451 query = self._prefixed_sql("FOR QUERY", expression, "query") +452 +453 if expression.name == "PROFILE": +454 offset = self._prefixed_sql("OFFSET", expression, "offset") +455 limit = self._prefixed_sql("LIMIT", expression, "limit") +456 else: +457 offset = "" +458 limit = self._oldstyle_limit_sql(expression) +459 +460 log = self._prefixed_sql("IN", expression, "log") +461 position = self._prefixed_sql("FROM", expression, "position") 462 -463 if expression.name == "ENGINE": -464 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" -465 else: -466 mutex_or_status = "" -467 -468 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" +463 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") +464 +465 if expression.name == "ENGINE": +466 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" +467 else: +468 mutex_or_status = "" 469 -470 def _prefixed_sql(self, prefix, expression, arg): -471 sql = self.sql(expression, arg) -472 if not sql: -473 return "" -474 return f" {prefix} {sql}" -475 -476 def _oldstyle_limit_sql(self, expression): -477 limit = self.sql(expression, "limit") -478 offset = self.sql(expression, "offset") -479 if limit: -480 limit_offset = f"{offset}, {limit}" if offset else limit -481 return f" LIMIT {limit_offset}" -482 return "" +470 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" +471 +472 def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str: +473 sql = self.sql(expression, arg) +474 if not sql: +475 return "" +476 return f" {prefix} {sql}" +477 +478 def _oldstyle_limit_sql(self, expression: exp.Show) -> str: +479 limit = self.sql(expression, "limit") +480 offset = self.sql(expression, "offset") +481 if limit: +482 limit_offset = f"{offset}, {limit}" if offset else limit +483 return f" LIMIT {limit_offset}" +484 return ""
@@ -768,196 +770,198 @@ 291 "SWAPS", 292 } 293 -294 def _parse_show_mysql(self, this, target=False, full=None, global_=None): -295 if target: -296 if isinstance(target, str): -297 self._match_text_seq(target) -298 target_id = self._parse_id_var() -299 else: -300 target_id = None -301 -302 log = self._parse_string() if self._match_text_seq("IN") else None +294 LOG_DEFAULTS_TO_LN = True +295 +296 def _parse_show_mysql(self, this, target=False, full=None, global_=None): +297 if target: +298 if isinstance(target, str): +299 self._match_text_seq(target) +300 target_id = self._parse_id_var() +301 else: +302 target_id = None 303 -304 if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}: -305 position = self._parse_number() if self._match_text_seq("FROM") else None -306 db = None -307 else: -308 position = None -309 db = None -310 -311 if self._match(TokenType.FROM): -312 db = self._parse_id_var() -313 elif self._match(TokenType.DOT): -314 db = target_id -315 target_id = self._parse_id_var() -316 -317 channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None +304 log = self._parse_string() if self._match_text_seq("IN") else None +305 +306 if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}: +307 position = self._parse_number() if self._match_text_seq("FROM") else None +308 db = None +309 else: +310 position = None +311 db = None +312 +313 if self._match(TokenType.FROM): +314 db = self._parse_id_var() +315 elif self._match(TokenType.DOT): +316 db = target_id +317 target_id = self._parse_id_var() 318 -319 like = self._parse_string() if self._match_text_seq("LIKE") else None -320 where = self._parse_where() -321 -322 if this == "PROFILE": -323 types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES)) -324 query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None -325 offset = self._parse_number() if self._match_text_seq("OFFSET") else None -326 limit = self._parse_number() if self._match_text_seq("LIMIT") else None -327 else: -328 types, query = None, None -329 offset, limit = self._parse_oldstyle_limit() -330 -331 mutex = True if self._match_text_seq("MUTEX") else None -332 mutex = False if self._match_text_seq("STATUS") else mutex -333 -334 return self.expression( -335 exp.Show, -336 this=this, -337 target=target_id, -338 full=full, -339 log=log, -340 position=position, -341 db=db, -342 channel=channel, -343 like=like, -344 where=where, -345 types=types, -346 query=query, -347 offset=offset, -348 limit=limit, -349 mutex=mutex, -350 **{"global": global_}, -351 ) -352 -353 def _parse_oldstyle_limit(self): -354 limit = None -355 offset = None -356 if self._match_text_seq("LIMIT"): -357 parts = self._parse_csv(self._parse_number) -358 if len(parts) == 1: -359 limit = parts[0] -360 elif len(parts) == 2: -361 limit = parts[1] -362 offset = parts[0] -363 return offset, limit -364 -365 def _parse_set_item_charset(self, kind): -366 this = self._parse_string() or self._parse_id_var() -367 -368 return self.expression( -369 exp.SetItem, -370 this=this, -371 kind=kind, -372 ) -373 -374 def _parse_set_item_names(self): -375 charset = self._parse_string() or self._parse_id_var() -376 if self._match_text_seq("COLLATE"): -377 collate = self._parse_string() or self._parse_id_var() -378 else: -379 collate = None -380 return self.expression( -381 exp.SetItem, -382 this=charset, -383 collate=collate, -384 kind="NAMES", -385 ) -386 -387 class Generator(generator.Generator): -388 LOCKING_READS_SUPPORTED = True -389 NULL_ORDERING_SUPPORTED = False -390 -391 TRANSFORMS = { -392 **generator.Generator.TRANSFORMS, # type: ignore -393 exp.CurrentDate: no_paren_current_date_sql, -394 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", -395 exp.ILike: no_ilike_sql, -396 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, -397 exp.Max: max_or_greatest, -398 exp.Min: min_or_least, -399 exp.TableSample: no_tablesample_sql, -400 exp.TryCast: no_trycast_sql, -401 exp.DateAdd: _date_add_sql("ADD"), -402 exp.DateDiff: lambda self, e: f"DATEDIFF({self.format_args(e.this, e.expression)})", -403 exp.DateSub: _date_add_sql("SUB"), -404 exp.DateTrunc: _date_trunc_sql, -405 exp.DayOfWeek: rename_func("DAYOFWEEK"), -406 exp.DayOfMonth: rename_func("DAYOFMONTH"), -407 exp.DayOfYear: rename_func("DAYOFYEAR"), -408 exp.WeekOfYear: rename_func("WEEKOFYEAR"), -409 exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""", -410 exp.StrToDate: _str_to_date_sql, -411 exp.StrToTime: _str_to_date_sql, -412 exp.Trim: _trim_sql, -413 exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), -414 exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), -415 exp.StrPosition: strposition_to_locate_sql, -416 } -417 -418 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() -419 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) -420 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) -421 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) -422 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) -423 -424 PROPERTIES_LOCATION = { -425 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -426 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, -427 } -428 -429 LIMIT_FETCH = "LIMIT" +319 channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None +320 +321 like = self._parse_string() if self._match_text_seq("LIKE") else None +322 where = self._parse_where() +323 +324 if this == "PROFILE": +325 types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES)) +326 query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None +327 offset = self._parse_number() if self._match_text_seq("OFFSET") else None +328 limit = self._parse_number() if self._match_text_seq("LIMIT") else None +329 else: +330 types, query = None, None +331 offset, limit = self._parse_oldstyle_limit() +332 +333 mutex = True if self._match_text_seq("MUTEX") else None +334 mutex = False if self._match_text_seq("STATUS") else mutex +335 +336 return self.expression( +337 exp.Show, +338 this=this, +339 target=target_id, +340 full=full, +341 log=log, +342 position=position, +343 db=db, +344 channel=channel, +345 like=like, +346 where=where, +347 types=types, +348 query=query, +349 offset=offset, +350 limit=limit, +351 mutex=mutex, +352 **{"global": global_}, +353 ) +354 +355 def _parse_oldstyle_limit(self): +356 limit = None +357 offset = None +358 if self._match_text_seq("LIMIT"): +359 parts = self._parse_csv(self._parse_number) +360 if len(parts) == 1: +361 limit = parts[0] +362 elif len(parts) == 2: +363 limit = parts[1] +364 offset = parts[0] +365 return offset, limit +366 +367 def _parse_set_item_charset(self, kind): +368 this = self._parse_string() or self._parse_id_var() +369 +370 return self.expression( +371 exp.SetItem, +372 this=this, +373 kind=kind, +374 ) +375 +376 def _parse_set_item_names(self): +377 charset = self._parse_string() or self._parse_id_var() +378 if self._match_text_seq("COLLATE"): +379 collate = self._parse_string() or self._parse_id_var() +380 else: +381 collate = None +382 return self.expression( +383 exp.SetItem, +384 this=charset, +385 collate=collate, +386 kind="NAMES", +387 ) +388 +389 class Generator(generator.Generator): +390 LOCKING_READS_SUPPORTED = True +391 NULL_ORDERING_SUPPORTED = False +392 +393 TRANSFORMS = { +394 **generator.Generator.TRANSFORMS, # type: ignore +395 exp.CurrentDate: no_paren_current_date_sql, +396 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", +397 exp.ILike: no_ilike_sql, +398 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, +399 exp.Max: max_or_greatest, +400 exp.Min: min_or_least, +401 exp.TableSample: no_tablesample_sql, +402 exp.TryCast: no_trycast_sql, +403 exp.DateAdd: _date_add_sql("ADD"), +404 exp.DateDiff: lambda self, e: f"DATEDIFF({self.format_args(e.this, e.expression)})", +405 exp.DateSub: _date_add_sql("SUB"), +406 exp.DateTrunc: _date_trunc_sql, +407 exp.DayOfWeek: rename_func("DAYOFWEEK"), +408 exp.DayOfMonth: rename_func("DAYOFMONTH"), +409 exp.DayOfYear: rename_func("DAYOFYEAR"), +410 exp.WeekOfYear: rename_func("WEEKOFYEAR"), +411 exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""", +412 exp.StrToDate: _str_to_date_sql, +413 exp.StrToTime: _str_to_date_sql, +414 exp.Trim: _trim_sql, +415 exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), +416 exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), +417 exp.StrPosition: strposition_to_locate_sql, +418 } +419 +420 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() +421 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) +422 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) +423 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) +424 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) +425 +426 PROPERTIES_LOCATION = { +427 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +428 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, +429 } 430 -431 def show_sql(self, expression): -432 this = f" {expression.name}" -433 full = " FULL" if expression.args.get("full") else "" -434 global_ = " GLOBAL" if expression.args.get("global") else "" -435 -436 target = self.sql(expression, "target") -437 target = f" {target}" if target else "" -438 if expression.name in {"COLUMNS", "INDEX"}: -439 target = f" FROM{target}" -440 elif expression.name == "GRANTS": -441 target = f" FOR{target}" -442 -443 db = self._prefixed_sql("FROM", expression, "db") +431 LIMIT_FETCH = "LIMIT" +432 +433 def show_sql(self, expression: exp.Show) -> str: +434 this = f" {expression.name}" +435 full = " FULL" if expression.args.get("full") else "" +436 global_ = " GLOBAL" if expression.args.get("global") else "" +437 +438 target = self.sql(expression, "target") +439 target = f" {target}" if target else "" +440 if expression.name in {"COLUMNS", "INDEX"}: +441 target = f" FROM{target}" +442 elif expression.name == "GRANTS": +443 target = f" FOR{target}" 444 -445 like = self._prefixed_sql("LIKE", expression, "like") -446 where = self.sql(expression, "where") -447 -448 types = self.expressions(expression, key="types") -449 types = f" {types}" if types else types -450 query = self._prefixed_sql("FOR QUERY", expression, "query") -451 -452 if expression.name == "PROFILE": -453 offset = self._prefixed_sql("OFFSET", expression, "offset") -454 limit = self._prefixed_sql("LIMIT", expression, "limit") -455 else: -456 offset = "" -457 limit = self._oldstyle_limit_sql(expression) -458 -459 log = self._prefixed_sql("IN", expression, "log") -460 position = self._prefixed_sql("FROM", expression, "position") -461 -462 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") +445 db = self._prefixed_sql("FROM", expression, "db") +446 +447 like = self._prefixed_sql("LIKE", expression, "like") +448 where = self.sql(expression, "where") +449 +450 types = self.expressions(expression, key="types") +451 types = f" {types}" if types else types +452 query = self._prefixed_sql("FOR QUERY", expression, "query") +453 +454 if expression.name == "PROFILE": +455 offset = self._prefixed_sql("OFFSET", expression, "offset") +456 limit = self._prefixed_sql("LIMIT", expression, "limit") +457 else: +458 offset = "" +459 limit = self._oldstyle_limit_sql(expression) +460 +461 log = self._prefixed_sql("IN", expression, "log") +462 position = self._prefixed_sql("FROM", expression, "position") 463 -464 if expression.name == "ENGINE": -465 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" -466 else: -467 mutex_or_status = "" -468 -469 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" +464 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") +465 +466 if expression.name == "ENGINE": +467 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" +468 else: +469 mutex_or_status = "" 470 -471 def _prefixed_sql(self, prefix, expression, arg): -472 sql = self.sql(expression, arg) -473 if not sql: -474 return "" -475 return f" {prefix} {sql}" -476 -477 def _oldstyle_limit_sql(self, expression): -478 limit = self.sql(expression, "limit") -479 offset = self.sql(expression, "offset") -480 if limit: -481 limit_offset = f"{offset}, {limit}" if offset else limit -482 return f" LIMIT {limit_offset}" -483 return "" +471 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" +472 +473 def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str: +474 sql = self.sql(expression, arg) +475 if not sql: +476 return "" +477 return f" {prefix} {sql}" +478 +479 def _oldstyle_limit_sql(self, expression: exp.Show) -> str: +480 limit = self.sql(expression, "limit") +481 offset = self.sql(expression, "offset") +482 if limit: +483 limit_offset = f"{offset}, {limit}" if offset else limit +484 return f" LIMIT {limit_offset}" +485 return "" @@ -1191,98 +1195,100 @@ 291 "SWAPS", 292 } 293 -294 def _parse_show_mysql(self, this, target=False, full=None, global_=None): -295 if target: -296 if isinstance(target, str): -297 self._match_text_seq(target) -298 target_id = self._parse_id_var() -299 else: -300 target_id = None -301 -302 log = self._parse_string() if self._match_text_seq("IN") else None +294 LOG_DEFAULTS_TO_LN = True +295 +296 def _parse_show_mysql(self, this, target=False, full=None, global_=None): +297 if target: +298 if isinstance(target, str): +299 self._match_text_seq(target) +300 target_id = self._parse_id_var() +301 else: +302 target_id = None 303 -304 if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}: -305 position = self._parse_number() if self._match_text_seq("FROM") else None -306 db = None -307 else: -308 position = None -309 db = None -310 -311 if self._match(TokenType.FROM): -312 db = self._parse_id_var() -313 elif self._match(TokenType.DOT): -314 db = target_id -315 target_id = self._parse_id_var() -316 -317 channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None +304 log = self._parse_string() if self._match_text_seq("IN") else None +305 +306 if this in {"BINLOG EVENTS", "RELAYLOG EVENTS"}: +307 position = self._parse_number() if self._match_text_seq("FROM") else None +308 db = None +309 else: +310 position = None +311 db = None +312 +313 if self._match(TokenType.FROM): +314 db = self._parse_id_var() +315 elif self._match(TokenType.DOT): +316 db = target_id +317 target_id = self._parse_id_var() 318 -319 like = self._parse_string() if self._match_text_seq("LIKE") else None -320 where = self._parse_where() -321 -322 if this == "PROFILE": -323 types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES)) -324 query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None -325 offset = self._parse_number() if self._match_text_seq("OFFSET") else None -326 limit = self._parse_number() if self._match_text_seq("LIMIT") else None -327 else: -328 types, query = None, None -329 offset, limit = self._parse_oldstyle_limit() -330 -331 mutex = True if self._match_text_seq("MUTEX") else None -332 mutex = False if self._match_text_seq("STATUS") else mutex -333 -334 return self.expression( -335 exp.Show, -336 this=this, -337 target=target_id, -338 full=full, -339 log=log, -340 position=position, -341 db=db, -342 channel=channel, -343 like=like, -344 where=where, -345 types=types, -346 query=query, -347 offset=offset, -348 limit=limit, -349 mutex=mutex, -350 **{"global": global_}, -351 ) -352 -353 def _parse_oldstyle_limit(self): -354 limit = None -355 offset = None -356 if self._match_text_seq("LIMIT"): -357 parts = self._parse_csv(self._parse_number) -358 if len(parts) == 1: -359 limit = parts[0] -360 elif len(parts) == 2: -361 limit = parts[1] -362 offset = parts[0] -363 return offset, limit -364 -365 def _parse_set_item_charset(self, kind): -366 this = self._parse_string() or self._parse_id_var() -367 -368 return self.expression( -369 exp.SetItem, -370 this=this, -371 kind=kind, -372 ) -373 -374 def _parse_set_item_names(self): -375 charset = self._parse_string() or self._parse_id_var() -376 if self._match_text_seq("COLLATE"): -377 collate = self._parse_string() or self._parse_id_var() -378 else: -379 collate = None -380 return self.expression( -381 exp.SetItem, -382 this=charset, -383 collate=collate, -384 kind="NAMES", -385 ) +319 channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None +320 +321 like = self._parse_string() if self._match_text_seq("LIKE") else None +322 where = self._parse_where() +323 +324 if this == "PROFILE": +325 types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES)) +326 query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None +327 offset = self._parse_number() if self._match_text_seq("OFFSET") else None +328 limit = self._parse_number() if self._match_text_seq("LIMIT") else None +329 else: +330 types, query = None, None +331 offset, limit = self._parse_oldstyle_limit() +332 +333 mutex = True if self._match_text_seq("MUTEX") else None +334 mutex = False if self._match_text_seq("STATUS") else mutex +335 +336 return self.expression( +337 exp.Show, +338 this=this, +339 target=target_id, +340 full=full, +341 log=log, +342 position=position, +343 db=db, +344 channel=channel, +345 like=like, +346 where=where, +347 types=types, +348 query=query, +349 offset=offset, +350 limit=limit, +351 mutex=mutex, +352 **{"global": global_}, +353 ) +354 +355 def _parse_oldstyle_limit(self): +356 limit = None +357 offset = None +358 if self._match_text_seq("LIMIT"): +359 parts = self._parse_csv(self._parse_number) +360 if len(parts) == 1: +361 limit = parts[0] +362 elif len(parts) == 2: +363 limit = parts[1] +364 offset = parts[0] +365 return offset, limit +366 +367 def _parse_set_item_charset(self, kind): +368 this = self._parse_string() or self._parse_id_var() +369 +370 return self.expression( +371 exp.SetItem, +372 this=this, +373 kind=kind, +374 ) +375 +376 def _parse_set_item_names(self): +377 charset = self._parse_string() or self._parse_id_var() +378 if self._match_text_seq("COLLATE"): +379 collate = self._parse_string() or self._parse_id_var() +380 else: +381 collate = None +382 return self.expression( +383 exp.SetItem, +384 this=charset, +385 collate=collate, +386 kind="NAMES", +387 ) @@ -1339,103 +1345,103 @@ Default: "nulls_are_small" -
387    class Generator(generator.Generator):
-388        LOCKING_READS_SUPPORTED = True
-389        NULL_ORDERING_SUPPORTED = False
-390
-391        TRANSFORMS = {
-392            **generator.Generator.TRANSFORMS,  # type: ignore
-393            exp.CurrentDate: no_paren_current_date_sql,
-394            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
-395            exp.ILike: no_ilike_sql,
-396            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
-397            exp.Max: max_or_greatest,
-398            exp.Min: min_or_least,
-399            exp.TableSample: no_tablesample_sql,
-400            exp.TryCast: no_trycast_sql,
-401            exp.DateAdd: _date_add_sql("ADD"),
-402            exp.DateDiff: lambda self, e: f"DATEDIFF({self.format_args(e.this, e.expression)})",
-403            exp.DateSub: _date_add_sql("SUB"),
-404            exp.DateTrunc: _date_trunc_sql,
-405            exp.DayOfWeek: rename_func("DAYOFWEEK"),
-406            exp.DayOfMonth: rename_func("DAYOFMONTH"),
-407            exp.DayOfYear: rename_func("DAYOFYEAR"),
-408            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
-409            exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
-410            exp.StrToDate: _str_to_date_sql,
-411            exp.StrToTime: _str_to_date_sql,
-412            exp.Trim: _trim_sql,
-413            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
-414            exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")),
-415            exp.StrPosition: strposition_to_locate_sql,
-416        }
-417
-418        TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy()
-419        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
-420        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
-421        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
-422        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
-423
-424        PROPERTIES_LOCATION = {
-425            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
-426            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
-427        }
-428
-429        LIMIT_FETCH = "LIMIT"
+            
389    class Generator(generator.Generator):
+390        LOCKING_READS_SUPPORTED = True
+391        NULL_ORDERING_SUPPORTED = False
+392
+393        TRANSFORMS = {
+394            **generator.Generator.TRANSFORMS,  # type: ignore
+395            exp.CurrentDate: no_paren_current_date_sql,
+396            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
+397            exp.ILike: no_ilike_sql,
+398            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
+399            exp.Max: max_or_greatest,
+400            exp.Min: min_or_least,
+401            exp.TableSample: no_tablesample_sql,
+402            exp.TryCast: no_trycast_sql,
+403            exp.DateAdd: _date_add_sql("ADD"),
+404            exp.DateDiff: lambda self, e: f"DATEDIFF({self.format_args(e.this, e.expression)})",
+405            exp.DateSub: _date_add_sql("SUB"),
+406            exp.DateTrunc: _date_trunc_sql,
+407            exp.DayOfWeek: rename_func("DAYOFWEEK"),
+408            exp.DayOfMonth: rename_func("DAYOFMONTH"),
+409            exp.DayOfYear: rename_func("DAYOFYEAR"),
+410            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
+411            exp.GroupConcat: lambda self, e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
+412            exp.StrToDate: _str_to_date_sql,
+413            exp.StrToTime: _str_to_date_sql,
+414            exp.Trim: _trim_sql,
+415            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
+416            exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")),
+417            exp.StrPosition: strposition_to_locate_sql,
+418        }
+419
+420        TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy()
+421        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
+422        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
+423        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
+424        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
+425
+426        PROPERTIES_LOCATION = {
+427            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
+428            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
+429        }
 430
-431        def show_sql(self, expression):
-432            this = f" {expression.name}"
-433            full = " FULL" if expression.args.get("full") else ""
-434            global_ = " GLOBAL" if expression.args.get("global") else ""
-435
-436            target = self.sql(expression, "target")
-437            target = f" {target}" if target else ""
-438            if expression.name in {"COLUMNS", "INDEX"}:
-439                target = f" FROM{target}"
-440            elif expression.name == "GRANTS":
-441                target = f" FOR{target}"
-442
-443            db = self._prefixed_sql("FROM", expression, "db")
+431        LIMIT_FETCH = "LIMIT"
+432
+433        def show_sql(self, expression: exp.Show) -> str:
+434            this = f" {expression.name}"
+435            full = " FULL" if expression.args.get("full") else ""
+436            global_ = " GLOBAL" if expression.args.get("global") else ""
+437
+438            target = self.sql(expression, "target")
+439            target = f" {target}" if target else ""
+440            if expression.name in {"COLUMNS", "INDEX"}:
+441                target = f" FROM{target}"
+442            elif expression.name == "GRANTS":
+443                target = f" FOR{target}"
 444
-445            like = self._prefixed_sql("LIKE", expression, "like")
-446            where = self.sql(expression, "where")
-447
-448            types = self.expressions(expression, key="types")
-449            types = f" {types}" if types else types
-450            query = self._prefixed_sql("FOR QUERY", expression, "query")
-451
-452            if expression.name == "PROFILE":
-453                offset = self._prefixed_sql("OFFSET", expression, "offset")
-454                limit = self._prefixed_sql("LIMIT", expression, "limit")
-455            else:
-456                offset = ""
-457                limit = self._oldstyle_limit_sql(expression)
-458
-459            log = self._prefixed_sql("IN", expression, "log")
-460            position = self._prefixed_sql("FROM", expression, "position")
-461
-462            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
+445            db = self._prefixed_sql("FROM", expression, "db")
+446
+447            like = self._prefixed_sql("LIKE", expression, "like")
+448            where = self.sql(expression, "where")
+449
+450            types = self.expressions(expression, key="types")
+451            types = f" {types}" if types else types
+452            query = self._prefixed_sql("FOR QUERY", expression, "query")
+453
+454            if expression.name == "PROFILE":
+455                offset = self._prefixed_sql("OFFSET", expression, "offset")
+456                limit = self._prefixed_sql("LIMIT", expression, "limit")
+457            else:
+458                offset = ""
+459                limit = self._oldstyle_limit_sql(expression)
+460
+461            log = self._prefixed_sql("IN", expression, "log")
+462            position = self._prefixed_sql("FROM", expression, "position")
 463
-464            if expression.name == "ENGINE":
-465                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
-466            else:
-467                mutex_or_status = ""
-468
-469            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
+464            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
+465
+466            if expression.name == "ENGINE":
+467                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
+468            else:
+469                mutex_or_status = ""
 470
-471        def _prefixed_sql(self, prefix, expression, arg):
-472            sql = self.sql(expression, arg)
-473            if not sql:
-474                return ""
-475            return f" {prefix} {sql}"
-476
-477        def _oldstyle_limit_sql(self, expression):
-478            limit = self.sql(expression, "limit")
-479            offset = self.sql(expression, "offset")
-480            if limit:
-481                limit_offset = f"{offset}, {limit}" if offset else limit
-482                return f" LIMIT {limit_offset}"
-483            return ""
+471            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
+472
+473        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
+474            sql = self.sql(expression, arg)
+475            if not sql:
+476                return ""
+477            return f" {prefix} {sql}"
+478
+479        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
+480            limit = self.sql(expression, "limit")
+481            offset = self.sql(expression, "offset")
+482            if limit:
+483                limit_offset = f"{offset}, {limit}" if offset else limit
+484                return f" LIMIT {limit_offset}"
+485            return ""
 
@@ -1488,51 +1494,51 @@ Default: True
def - show_sql(self, expression): + show_sql(self, expression: sqlglot.expressions.Show) -> str:
-
431        def show_sql(self, expression):
-432            this = f" {expression.name}"
-433            full = " FULL" if expression.args.get("full") else ""
-434            global_ = " GLOBAL" if expression.args.get("global") else ""
-435
-436            target = self.sql(expression, "target")
-437            target = f" {target}" if target else ""
-438            if expression.name in {"COLUMNS", "INDEX"}:
-439                target = f" FROM{target}"
-440            elif expression.name == "GRANTS":
-441                target = f" FOR{target}"
-442
-443            db = self._prefixed_sql("FROM", expression, "db")
+            
433        def show_sql(self, expression: exp.Show) -> str:
+434            this = f" {expression.name}"
+435            full = " FULL" if expression.args.get("full") else ""
+436            global_ = " GLOBAL" if expression.args.get("global") else ""
+437
+438            target = self.sql(expression, "target")
+439            target = f" {target}" if target else ""
+440            if expression.name in {"COLUMNS", "INDEX"}:
+441                target = f" FROM{target}"
+442            elif expression.name == "GRANTS":
+443                target = f" FOR{target}"
 444
-445            like = self._prefixed_sql("LIKE", expression, "like")
-446            where = self.sql(expression, "where")
-447
-448            types = self.expressions(expression, key="types")
-449            types = f" {types}" if types else types
-450            query = self._prefixed_sql("FOR QUERY", expression, "query")
-451
-452            if expression.name == "PROFILE":
-453                offset = self._prefixed_sql("OFFSET", expression, "offset")
-454                limit = self._prefixed_sql("LIMIT", expression, "limit")
-455            else:
-456                offset = ""
-457                limit = self._oldstyle_limit_sql(expression)
-458
-459            log = self._prefixed_sql("IN", expression, "log")
-460            position = self._prefixed_sql("FROM", expression, "position")
-461
-462            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
+445            db = self._prefixed_sql("FROM", expression, "db")
+446
+447            like = self._prefixed_sql("LIKE", expression, "like")
+448            where = self.sql(expression, "where")
+449
+450            types = self.expressions(expression, key="types")
+451            types = f" {types}" if types else types
+452            query = self._prefixed_sql("FOR QUERY", expression, "query")
+453
+454            if expression.name == "PROFILE":
+455                offset = self._prefixed_sql("OFFSET", expression, "offset")
+456                limit = self._prefixed_sql("LIMIT", expression, "limit")
+457            else:
+458                offset = ""
+459                limit = self._oldstyle_limit_sql(expression)
+460
+461            log = self._prefixed_sql("IN", expression, "log")
+462            position = self._prefixed_sql("FROM", expression, "position")
 463
-464            if expression.name == "ENGINE":
-465                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
-466            else:
-467                mutex_or_status = ""
-468
-469            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
+464            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
+465
+466            if expression.name == "ENGINE":
+467                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
+468            else:
+469                mutex_or_status = ""
+470
+471            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
 
@@ -1559,6 +1565,7 @@ Default: True
cache_sql
characterset_sql
column_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -1676,6 +1683,7 @@ Default: True
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -1727,8 +1735,10 @@ Default: True
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
diff --git a/docs/sqlglot/dialects/oracle.html b/docs/sqlglot/dialects/oracle.html index c1d00d2..dcf8bf6 100644 --- a/docs/sqlglot/dialects/oracle.html +++ b/docs/sqlglot/dialects/oracle.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.oracle API documentation @@ -158,102 +158,100 @@
70 class Parser(parser.Parser): 71 FUNCTIONS = { 72 **parser.Parser.FUNCTIONS, # type: ignore - 73 "DECODE": exp.Matches.from_arg_list, - 74 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), - 75 } - 76 - 77 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { - 78 **parser.Parser.FUNCTION_PARSERS, - 79 "XMLTABLE": _parse_xml_table, - 80 } - 81 - 82 def _parse_column(self) -> t.Optional[exp.Expression]: - 83 column = super()._parse_column() - 84 if column: - 85 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) - 86 return column - 87 - 88 def _parse_hint(self) -> t.Optional[exp.Expression]: - 89 if self._match(TokenType.HINT): - 90 start = self._curr - 91 while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH): - 92 self._advance() - 93 - 94 if not self._curr: - 95 self.raise_error("Expected */ after HINT") - 96 - 97 end = self._tokens[self._index - 3] - 98 return exp.Hint(expressions=[self._find_sql(start, end)]) - 99 -100 return None -101 -102 class Generator(generator.Generator): -103 LOCKING_READS_SUPPORTED = True -104 -105 TYPE_MAPPING = { -106 **generator.Generator.TYPE_MAPPING, # type: ignore -107 exp.DataType.Type.TINYINT: "NUMBER", -108 exp.DataType.Type.SMALLINT: "NUMBER", -109 exp.DataType.Type.INT: "NUMBER", -110 exp.DataType.Type.BIGINT: "NUMBER", -111 exp.DataType.Type.DECIMAL: "NUMBER", -112 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", -113 exp.DataType.Type.VARCHAR: "VARCHAR2", -114 exp.DataType.Type.NVARCHAR: "NVARCHAR2", -115 exp.DataType.Type.TEXT: "CLOB", -116 exp.DataType.Type.BINARY: "BLOB", -117 exp.DataType.Type.VARBINARY: "BLOB", -118 } -119 -120 TRANSFORMS = { -121 **generator.Generator.TRANSFORMS, # type: ignore -122 **transforms.UNALIAS_GROUP, # type: ignore -123 exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */", -124 exp.ILike: no_ilike_sql, -125 exp.Matches: rename_func("DECODE"), -126 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -127 exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), -128 exp.Substring: rename_func("SUBSTR"), -129 exp.Table: lambda self, e: self.table_sql(e, sep=" "), -130 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", -131 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -132 exp.Trim: trim_sql, -133 exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", -134 } + 73 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), + 74 } + 75 + 76 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { + 77 **parser.Parser.FUNCTION_PARSERS, + 78 "XMLTABLE": _parse_xml_table, + 79 } + 80 + 81 def _parse_column(self) -> t.Optional[exp.Expression]: + 82 column = super()._parse_column() + 83 if column: + 84 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) + 85 return column + 86 + 87 def _parse_hint(self) -> t.Optional[exp.Expression]: + 88 if self._match(TokenType.HINT): + 89 start = self._curr + 90 while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH): + 91 self._advance() + 92 + 93 if not self._curr: + 94 self.raise_error("Expected */ after HINT") + 95 + 96 end = self._tokens[self._index - 3] + 97 return exp.Hint(expressions=[self._find_sql(start, end)]) + 98 + 99 return None +100 +101 class Generator(generator.Generator): +102 LOCKING_READS_SUPPORTED = True +103 +104 TYPE_MAPPING = { +105 **generator.Generator.TYPE_MAPPING, # type: ignore +106 exp.DataType.Type.TINYINT: "NUMBER", +107 exp.DataType.Type.SMALLINT: "NUMBER", +108 exp.DataType.Type.INT: "NUMBER", +109 exp.DataType.Type.BIGINT: "NUMBER", +110 exp.DataType.Type.DECIMAL: "NUMBER", +111 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", +112 exp.DataType.Type.VARCHAR: "VARCHAR2", +113 exp.DataType.Type.NVARCHAR: "NVARCHAR2", +114 exp.DataType.Type.TEXT: "CLOB", +115 exp.DataType.Type.BINARY: "BLOB", +116 exp.DataType.Type.VARBINARY: "BLOB", +117 } +118 +119 TRANSFORMS = { +120 **generator.Generator.TRANSFORMS, # type: ignore +121 **transforms.UNALIAS_GROUP, # type: ignore +122 exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */", +123 exp.ILike: no_ilike_sql, +124 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +125 exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), +126 exp.Substring: rename_func("SUBSTR"), +127 exp.Table: lambda self, e: self.table_sql(e, sep=" "), +128 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +129 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +130 exp.Trim: trim_sql, +131 exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", +132 } +133 +134 LIMIT_FETCH = "FETCH" 135 -136 LIMIT_FETCH = "FETCH" -137 -138 def offset_sql(self, expression: exp.Offset) -> str: -139 return f"{super().offset_sql(expression)} ROWS" -140 -141 def column_sql(self, expression: exp.Column) -> str: -142 column = super().column_sql(expression) -143 return f"{column} (+)" if expression.args.get("join_mark") else column -144 -145 def xmltable_sql(self, expression: exp.XMLTable) -> str: -146 this = self.sql(expression, "this") -147 passing = self.expressions(expression, "passing") -148 passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else "" -149 columns = self.expressions(expression, "columns") -150 columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else "" -151 by_ref = ( -152 f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else "" -153 ) -154 return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" -155 -156 class Tokenizer(tokens.Tokenizer): -157 KEYWORDS = { -158 **tokens.Tokenizer.KEYWORDS, -159 "(+)": TokenType.JOIN_MARKER, -160 "COLUMNS": TokenType.COLUMN, -161 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, -162 "MINUS": TokenType.EXCEPT, -163 "NVARCHAR2": TokenType.NVARCHAR, -164 "RETURNING": TokenType.RETURNING, -165 "START": TokenType.BEGIN, -166 "TOP": TokenType.TOP, -167 "VARCHAR2": TokenType.VARCHAR, -168 } +136 def offset_sql(self, expression: exp.Offset) -> str: +137 return f"{super().offset_sql(expression)} ROWS" +138 +139 def column_sql(self, expression: exp.Column) -> str: +140 column = super().column_sql(expression) +141 return f"{column} (+)" if expression.args.get("join_mark") else column +142 +143 def xmltable_sql(self, expression: exp.XMLTable) -> str: +144 this = self.sql(expression, "this") +145 passing = self.expressions(expression, "passing") +146 passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else "" +147 columns = self.expressions(expression, "columns") +148 columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else "" +149 by_ref = ( +150 f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else "" +151 ) +152 return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" +153 +154 class Tokenizer(tokens.Tokenizer): +155 KEYWORDS = { +156 **tokens.Tokenizer.KEYWORDS, +157 "(+)": TokenType.JOIN_MARKER, +158 "COLUMNS": TokenType.COLUMN, +159 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, +160 "MINUS": TokenType.EXCEPT, +161 "NVARCHAR2": TokenType.NVARCHAR, +162 "RETURNING": TokenType.RETURNING, +163 "START": TokenType.BEGIN, +164 "TOP": TokenType.TOP, +165 "VARCHAR2": TokenType.VARCHAR, +166 }
@@ -299,102 +297,100 @@
71 class Parser(parser.Parser): 72 FUNCTIONS = { 73 **parser.Parser.FUNCTIONS, # type: ignore - 74 "DECODE": exp.Matches.from_arg_list, - 75 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), - 76 } - 77 - 78 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { - 79 **parser.Parser.FUNCTION_PARSERS, - 80 "XMLTABLE": _parse_xml_table, - 81 } - 82 - 83 def _parse_column(self) -> t.Optional[exp.Expression]: - 84 column = super()._parse_column() - 85 if column: - 86 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) - 87 return column - 88 - 89 def _parse_hint(self) -> t.Optional[exp.Expression]: - 90 if self._match(TokenType.HINT): - 91 start = self._curr - 92 while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH): - 93 self._advance() - 94 - 95 if not self._curr: - 96 self.raise_error("Expected */ after HINT") - 97 - 98 end = self._tokens[self._index - 3] - 99 return exp.Hint(expressions=[self._find_sql(start, end)]) -100 -101 return None -102 -103 class Generator(generator.Generator): -104 LOCKING_READS_SUPPORTED = True -105 -106 TYPE_MAPPING = { -107 **generator.Generator.TYPE_MAPPING, # type: ignore -108 exp.DataType.Type.TINYINT: "NUMBER", -109 exp.DataType.Type.SMALLINT: "NUMBER", -110 exp.DataType.Type.INT: "NUMBER", -111 exp.DataType.Type.BIGINT: "NUMBER", -112 exp.DataType.Type.DECIMAL: "NUMBER", -113 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", -114 exp.DataType.Type.VARCHAR: "VARCHAR2", -115 exp.DataType.Type.NVARCHAR: "NVARCHAR2", -116 exp.DataType.Type.TEXT: "CLOB", -117 exp.DataType.Type.BINARY: "BLOB", -118 exp.DataType.Type.VARBINARY: "BLOB", -119 } -120 -121 TRANSFORMS = { -122 **generator.Generator.TRANSFORMS, # type: ignore -123 **transforms.UNALIAS_GROUP, # type: ignore -124 exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */", -125 exp.ILike: no_ilike_sql, -126 exp.Matches: rename_func("DECODE"), -127 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -128 exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), -129 exp.Substring: rename_func("SUBSTR"), -130 exp.Table: lambda self, e: self.table_sql(e, sep=" "), -131 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", -132 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -133 exp.Trim: trim_sql, -134 exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", -135 } + 74 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), + 75 } + 76 + 77 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { + 78 **parser.Parser.FUNCTION_PARSERS, + 79 "XMLTABLE": _parse_xml_table, + 80 } + 81 + 82 def _parse_column(self) -> t.Optional[exp.Expression]: + 83 column = super()._parse_column() + 84 if column: + 85 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) + 86 return column + 87 + 88 def _parse_hint(self) -> t.Optional[exp.Expression]: + 89 if self._match(TokenType.HINT): + 90 start = self._curr + 91 while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH): + 92 self._advance() + 93 + 94 if not self._curr: + 95 self.raise_error("Expected */ after HINT") + 96 + 97 end = self._tokens[self._index - 3] + 98 return exp.Hint(expressions=[self._find_sql(start, end)]) + 99 +100 return None +101 +102 class Generator(generator.Generator): +103 LOCKING_READS_SUPPORTED = True +104 +105 TYPE_MAPPING = { +106 **generator.Generator.TYPE_MAPPING, # type: ignore +107 exp.DataType.Type.TINYINT: "NUMBER", +108 exp.DataType.Type.SMALLINT: "NUMBER", +109 exp.DataType.Type.INT: "NUMBER", +110 exp.DataType.Type.BIGINT: "NUMBER", +111 exp.DataType.Type.DECIMAL: "NUMBER", +112 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", +113 exp.DataType.Type.VARCHAR: "VARCHAR2", +114 exp.DataType.Type.NVARCHAR: "NVARCHAR2", +115 exp.DataType.Type.TEXT: "CLOB", +116 exp.DataType.Type.BINARY: "BLOB", +117 exp.DataType.Type.VARBINARY: "BLOB", +118 } +119 +120 TRANSFORMS = { +121 **generator.Generator.TRANSFORMS, # type: ignore +122 **transforms.UNALIAS_GROUP, # type: ignore +123 exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */", +124 exp.ILike: no_ilike_sql, +125 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +126 exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), +127 exp.Substring: rename_func("SUBSTR"), +128 exp.Table: lambda self, e: self.table_sql(e, sep=" "), +129 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +130 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +131 exp.Trim: trim_sql, +132 exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", +133 } +134 +135 LIMIT_FETCH = "FETCH" 136 -137 LIMIT_FETCH = "FETCH" -138 -139 def offset_sql(self, expression: exp.Offset) -> str: -140 return f"{super().offset_sql(expression)} ROWS" -141 -142 def column_sql(self, expression: exp.Column) -> str: -143 column = super().column_sql(expression) -144 return f"{column} (+)" if expression.args.get("join_mark") else column -145 -146 def xmltable_sql(self, expression: exp.XMLTable) -> str: -147 this = self.sql(expression, "this") -148 passing = self.expressions(expression, "passing") -149 passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else "" -150 columns = self.expressions(expression, "columns") -151 columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else "" -152 by_ref = ( -153 f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else "" -154 ) -155 return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" -156 -157 class Tokenizer(tokens.Tokenizer): -158 KEYWORDS = { -159 **tokens.Tokenizer.KEYWORDS, -160 "(+)": TokenType.JOIN_MARKER, -161 "COLUMNS": TokenType.COLUMN, -162 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, -163 "MINUS": TokenType.EXCEPT, -164 "NVARCHAR2": TokenType.NVARCHAR, -165 "RETURNING": TokenType.RETURNING, -166 "START": TokenType.BEGIN, -167 "TOP": TokenType.TOP, -168 "VARCHAR2": TokenType.VARCHAR, -169 } +137 def offset_sql(self, expression: exp.Offset) -> str: +138 return f"{super().offset_sql(expression)} ROWS" +139 +140 def column_sql(self, expression: exp.Column) -> str: +141 column = super().column_sql(expression) +142 return f"{column} (+)" if expression.args.get("join_mark") else column +143 +144 def xmltable_sql(self, expression: exp.XMLTable) -> str: +145 this = self.sql(expression, "this") +146 passing = self.expressions(expression, "passing") +147 passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else "" +148 columns = self.expressions(expression, "columns") +149 columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else "" +150 by_ref = ( +151 f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else "" +152 ) +153 return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" +154 +155 class Tokenizer(tokens.Tokenizer): +156 KEYWORDS = { +157 **tokens.Tokenizer.KEYWORDS, +158 "(+)": TokenType.JOIN_MARKER, +159 "COLUMNS": TokenType.COLUMN, +160 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, +161 "MINUS": TokenType.EXCEPT, +162 "NVARCHAR2": TokenType.NVARCHAR, +163 "RETURNING": TokenType.RETURNING, +164 "START": TokenType.BEGIN, +165 "TOP": TokenType.TOP, +166 "VARCHAR2": TokenType.VARCHAR, +167 }
@@ -432,34 +428,33 @@
 71    class Parser(parser.Parser):
  72        FUNCTIONS = {
  73            **parser.Parser.FUNCTIONS,  # type: ignore
- 74            "DECODE": exp.Matches.from_arg_list,
- 75            "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)),
- 76        }
- 77
- 78        FUNCTION_PARSERS: t.Dict[str, t.Callable] = {
- 79            **parser.Parser.FUNCTION_PARSERS,
- 80            "XMLTABLE": _parse_xml_table,
- 81        }
- 82
- 83        def _parse_column(self) -> t.Optional[exp.Expression]:
- 84            column = super()._parse_column()
- 85            if column:
- 86                column.set("join_mark", self._match(TokenType.JOIN_MARKER))
- 87            return column
- 88
- 89        def _parse_hint(self) -> t.Optional[exp.Expression]:
- 90            if self._match(TokenType.HINT):
- 91                start = self._curr
- 92                while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH):
- 93                    self._advance()
- 94
- 95                if not self._curr:
- 96                    self.raise_error("Expected */ after HINT")
- 97
- 98                end = self._tokens[self._index - 3]
- 99                return exp.Hint(expressions=[self._find_sql(start, end)])
-100
-101            return None
+ 74            "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)),
+ 75        }
+ 76
+ 77        FUNCTION_PARSERS: t.Dict[str, t.Callable] = {
+ 78            **parser.Parser.FUNCTION_PARSERS,
+ 79            "XMLTABLE": _parse_xml_table,
+ 80        }
+ 81
+ 82        def _parse_column(self) -> t.Optional[exp.Expression]:
+ 83            column = super()._parse_column()
+ 84            if column:
+ 85                column.set("join_mark", self._match(TokenType.JOIN_MARKER))
+ 86            return column
+ 87
+ 88        def _parse_hint(self) -> t.Optional[exp.Expression]:
+ 89            if self._match(TokenType.HINT):
+ 90                start = self._curr
+ 91                while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH):
+ 92                    self._advance()
+ 93
+ 94                if not self._curr:
+ 95                    self.raise_error("Expected */ after HINT")
+ 96
+ 97                end = self._tokens[self._index - 3]
+ 98                return exp.Hint(expressions=[self._find_sql(start, end)])
+ 99
+100            return None
 
@@ -516,59 +511,58 @@ Default: "nulls_are_small" -
103    class Generator(generator.Generator):
-104        LOCKING_READS_SUPPORTED = True
-105
-106        TYPE_MAPPING = {
-107            **generator.Generator.TYPE_MAPPING,  # type: ignore
-108            exp.DataType.Type.TINYINT: "NUMBER",
-109            exp.DataType.Type.SMALLINT: "NUMBER",
-110            exp.DataType.Type.INT: "NUMBER",
-111            exp.DataType.Type.BIGINT: "NUMBER",
-112            exp.DataType.Type.DECIMAL: "NUMBER",
-113            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
-114            exp.DataType.Type.VARCHAR: "VARCHAR2",
-115            exp.DataType.Type.NVARCHAR: "NVARCHAR2",
-116            exp.DataType.Type.TEXT: "CLOB",
-117            exp.DataType.Type.BINARY: "BLOB",
-118            exp.DataType.Type.VARBINARY: "BLOB",
-119        }
-120
-121        TRANSFORMS = {
-122            **generator.Generator.TRANSFORMS,  # type: ignore
-123            **transforms.UNALIAS_GROUP,  # type: ignore
-124            exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */",
-125            exp.ILike: no_ilike_sql,
-126            exp.Matches: rename_func("DECODE"),
-127            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
-128            exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "),
-129            exp.Substring: rename_func("SUBSTR"),
-130            exp.Table: lambda self, e: self.table_sql(e, sep=" "),
-131            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
-132            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
-133            exp.Trim: trim_sql,
-134            exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)",
-135        }
+            
102    class Generator(generator.Generator):
+103        LOCKING_READS_SUPPORTED = True
+104
+105        TYPE_MAPPING = {
+106            **generator.Generator.TYPE_MAPPING,  # type: ignore
+107            exp.DataType.Type.TINYINT: "NUMBER",
+108            exp.DataType.Type.SMALLINT: "NUMBER",
+109            exp.DataType.Type.INT: "NUMBER",
+110            exp.DataType.Type.BIGINT: "NUMBER",
+111            exp.DataType.Type.DECIMAL: "NUMBER",
+112            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
+113            exp.DataType.Type.VARCHAR: "VARCHAR2",
+114            exp.DataType.Type.NVARCHAR: "NVARCHAR2",
+115            exp.DataType.Type.TEXT: "CLOB",
+116            exp.DataType.Type.BINARY: "BLOB",
+117            exp.DataType.Type.VARBINARY: "BLOB",
+118        }
+119
+120        TRANSFORMS = {
+121            **generator.Generator.TRANSFORMS,  # type: ignore
+122            **transforms.UNALIAS_GROUP,  # type: ignore
+123            exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */",
+124            exp.ILike: no_ilike_sql,
+125            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
+126            exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "),
+127            exp.Substring: rename_func("SUBSTR"),
+128            exp.Table: lambda self, e: self.table_sql(e, sep=" "),
+129            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
+130            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
+131            exp.Trim: trim_sql,
+132            exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)",
+133        }
+134
+135        LIMIT_FETCH = "FETCH"
 136
-137        LIMIT_FETCH = "FETCH"
-138
-139        def offset_sql(self, expression: exp.Offset) -> str:
-140            return f"{super().offset_sql(expression)} ROWS"
-141
-142        def column_sql(self, expression: exp.Column) -> str:
-143            column = super().column_sql(expression)
-144            return f"{column} (+)" if expression.args.get("join_mark") else column
-145
-146        def xmltable_sql(self, expression: exp.XMLTable) -> str:
-147            this = self.sql(expression, "this")
-148            passing = self.expressions(expression, "passing")
-149            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
-150            columns = self.expressions(expression, "columns")
-151            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
-152            by_ref = (
-153                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
-154            )
-155            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
+137        def offset_sql(self, expression: exp.Offset) -> str:
+138            return f"{super().offset_sql(expression)} ROWS"
+139
+140        def column_sql(self, expression: exp.Column) -> str:
+141            column = super().column_sql(expression)
+142            return f"{column} (+)" if expression.args.get("join_mark") else column
+143
+144        def xmltable_sql(self, expression: exp.XMLTable) -> str:
+145            this = self.sql(expression, "this")
+146            passing = self.expressions(expression, "passing")
+147            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
+148            columns = self.expressions(expression, "columns")
+149            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
+150            by_ref = (
+151                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
+152            )
+153            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
 
@@ -627,8 +621,8 @@ Default: True
-
139        def offset_sql(self, expression: exp.Offset) -> str:
-140            return f"{super().offset_sql(expression)} ROWS"
+            
137        def offset_sql(self, expression: exp.Offset) -> str:
+138            return f"{super().offset_sql(expression)} ROWS"
 
@@ -646,9 +640,9 @@ Default: True
-
142        def column_sql(self, expression: exp.Column) -> str:
-143            column = super().column_sql(expression)
-144            return f"{column} (+)" if expression.args.get("join_mark") else column
+            
140        def column_sql(self, expression: exp.Column) -> str:
+141            column = super().column_sql(expression)
+142            return f"{column} (+)" if expression.args.get("join_mark") else column
 
@@ -666,16 +660,16 @@ Default: True
-
146        def xmltable_sql(self, expression: exp.XMLTable) -> str:
-147            this = self.sql(expression, "this")
-148            passing = self.expressions(expression, "passing")
-149            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
-150            columns = self.expressions(expression, "columns")
-151            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
-152            by_ref = (
-153                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
-154            )
-155            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
+            
144        def xmltable_sql(self, expression: exp.XMLTable) -> str:
+145            this = self.sql(expression, "this")
+146            passing = self.expressions(expression, "passing")
+147            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
+148            columns = self.expressions(expression, "columns")
+149            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
+150            by_ref = (
+151                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
+152            )
+153            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
 
@@ -701,6 +695,7 @@ Default: True
uncache_sql
cache_sql
characterset_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -817,6 +812,7 @@ Default: True
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -868,8 +864,10 @@ Default: True
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
@@ -917,19 +915,19 @@ Default: True
-
157    class Tokenizer(tokens.Tokenizer):
-158        KEYWORDS = {
-159            **tokens.Tokenizer.KEYWORDS,
-160            "(+)": TokenType.JOIN_MARKER,
-161            "COLUMNS": TokenType.COLUMN,
-162            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
-163            "MINUS": TokenType.EXCEPT,
-164            "NVARCHAR2": TokenType.NVARCHAR,
-165            "RETURNING": TokenType.RETURNING,
-166            "START": TokenType.BEGIN,
-167            "TOP": TokenType.TOP,
-168            "VARCHAR2": TokenType.VARCHAR,
-169        }
+            
155    class Tokenizer(tokens.Tokenizer):
+156        KEYWORDS = {
+157            **tokens.Tokenizer.KEYWORDS,
+158            "(+)": TokenType.JOIN_MARKER,
+159            "COLUMNS": TokenType.COLUMN,
+160            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
+161            "MINUS": TokenType.EXCEPT,
+162            "NVARCHAR2": TokenType.NVARCHAR,
+163            "RETURNING": TokenType.RETURNING,
+164            "START": TokenType.BEGIN,
+165            "TOP": TokenType.TOP,
+166            "VARCHAR2": TokenType.VARCHAR,
+167        }
 
diff --git a/docs/sqlglot/dialects/postgres.html b/docs/sqlglot/dialects/postgres.html index 86cdd70..6a3d84e 100644 --- a/docs/sqlglot/dialects/postgres.html +++ b/docs/sqlglot/dialects/postgres.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.postgres API documentation @@ -928,6 +928,7 @@ Default: True
cache_sql
characterset_sql
column_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -1045,6 +1046,7 @@ Default: True
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -1096,8 +1098,10 @@ Default: True
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
diff --git a/docs/sqlglot/dialects/presto.html b/docs/sqlglot/dialects/presto.html index 2c5983c..cce2c46 100644 --- a/docs/sqlglot/dialects/presto.html +++ b/docs/sqlglot/dialects/presto.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.presto API documentation @@ -886,6 +886,7 @@ Default: True
cache_sql
characterset_sql
column_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -1003,6 +1004,7 @@ Default: True
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -1053,8 +1055,10 @@ Default: True
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
diff --git a/docs/sqlglot/dialects/redshift.html b/docs/sqlglot/dialects/redshift.html index 5af8b73..6c2abad 100644 --- a/docs/sqlglot/dialects/redshift.html +++ b/docs/sqlglot/dialects/redshift.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.redshift API documentation @@ -94,152 +94,149 @@
3import typing as t 4 5from sqlglot import exp, transforms - 6from sqlglot.dialects.dialect import rename_func - 7from sqlglot.dialects.postgres import Postgres - 8from sqlglot.helper import seq_get - 9from sqlglot.tokens import TokenType + 6from sqlglot.dialects.postgres import Postgres + 7from sqlglot.helper import seq_get + 8from sqlglot.tokens import TokenType + 9 10 - 11 - 12class Redshift(Postgres): - 13 time_format = "'YYYY-MM-DD HH:MI:SS'" - 14 time_mapping = { - 15 **Postgres.time_mapping, # type: ignore - 16 "MON": "%b", - 17 "HH": "%H", - 18 } - 19 - 20 class Parser(Postgres.Parser): - 21 FUNCTIONS = { - 22 **Postgres.Parser.FUNCTIONS, # type: ignore - 23 "DATEADD": lambda args: exp.DateAdd( - 24 this=seq_get(args, 2), - 25 expression=seq_get(args, 1), - 26 unit=seq_get(args, 0), - 27 ), - 28 "DATEDIFF": lambda args: exp.DateDiff( - 29 this=seq_get(args, 2), - 30 expression=seq_get(args, 1), - 31 unit=seq_get(args, 0), - 32 ), - 33 "DECODE": exp.Matches.from_arg_list, - 34 "NVL": exp.Coalesce.from_arg_list, - 35 } + 11class Redshift(Postgres): + 12 time_format = "'YYYY-MM-DD HH:MI:SS'" + 13 time_mapping = { + 14 **Postgres.time_mapping, # type: ignore + 15 "MON": "%b", + 16 "HH": "%H", + 17 } + 18 + 19 class Parser(Postgres.Parser): + 20 FUNCTIONS = { + 21 **Postgres.Parser.FUNCTIONS, # type: ignore + 22 "DATEADD": lambda args: exp.DateAdd( + 23 this=seq_get(args, 2), + 24 expression=seq_get(args, 1), + 25 unit=seq_get(args, 0), + 26 ), + 27 "DATEDIFF": lambda args: exp.DateDiff( + 28 this=seq_get(args, 2), + 29 expression=seq_get(args, 1), + 30 unit=seq_get(args, 0), + 31 ), + 32 "NVL": exp.Coalesce.from_arg_list, + 33 } + 34 + 35 CONVERT_TYPE_FIRST = True 36 - 37 CONVERT_TYPE_FIRST = True - 38 - 39 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: - 40 this = super()._parse_types(check_func=check_func) - 41 - 42 if ( - 43 isinstance(this, exp.DataType) - 44 and this.this == exp.DataType.Type.VARCHAR - 45 and this.expressions - 46 and this.expressions[0] == exp.column("MAX") - 47 ): - 48 this.set("expressions", [exp.Var(this="MAX")]) + 37 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: + 38 this = super()._parse_types(check_func=check_func) + 39 + 40 if ( + 41 isinstance(this, exp.DataType) + 42 and this.this == exp.DataType.Type.VARCHAR + 43 and this.expressions + 44 and this.expressions[0] == exp.column("MAX") + 45 ): + 46 this.set("expressions", [exp.Var(this="MAX")]) + 47 + 48 return this 49 - 50 return this - 51 - 52 class Tokenizer(Postgres.Tokenizer): - 53 STRING_ESCAPES = ["\\"] - 54 - 55 KEYWORDS = { - 56 **Postgres.Tokenizer.KEYWORDS, # type: ignore - 57 "GEOMETRY": TokenType.GEOMETRY, - 58 "GEOGRAPHY": TokenType.GEOGRAPHY, - 59 "HLLSKETCH": TokenType.HLLSKETCH, - 60 "SUPER": TokenType.SUPER, - 61 "TIME": TokenType.TIMESTAMP, - 62 "TIMETZ": TokenType.TIMESTAMPTZ, - 63 "TOP": TokenType.TOP, - 64 "UNLOAD": TokenType.COMMAND, - 65 "VARBYTE": TokenType.VARBINARY, - 66 } - 67 - 68 class Generator(Postgres.Generator): - 69 TYPE_MAPPING = { - 70 **Postgres.Generator.TYPE_MAPPING, # type: ignore - 71 exp.DataType.Type.BINARY: "VARBYTE", - 72 exp.DataType.Type.VARBINARY: "VARBYTE", - 73 exp.DataType.Type.INT: "INTEGER", - 74 } - 75 - 76 PROPERTIES_LOCATION = { - 77 **Postgres.Generator.PROPERTIES_LOCATION, # type: ignore - 78 exp.LikeProperty: exp.Properties.Location.POST_WITH, - 79 } - 80 - 81 TRANSFORMS = { - 82 **Postgres.Generator.TRANSFORMS, # type: ignore - 83 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore - 84 exp.DateAdd: lambda self, e: self.func( - 85 "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this - 86 ), - 87 exp.DateDiff: lambda self, e: self.func( - 88 "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this - 89 ), - 90 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", - 91 exp.DistStyleProperty: lambda self, e: self.naked_property(e), - 92 exp.Matches: rename_func("DECODE"), - 93 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", - 94 } + 50 class Tokenizer(Postgres.Tokenizer): + 51 STRING_ESCAPES = ["\\"] + 52 + 53 KEYWORDS = { + 54 **Postgres.Tokenizer.KEYWORDS, # type: ignore + 55 "GEOMETRY": TokenType.GEOMETRY, + 56 "GEOGRAPHY": TokenType.GEOGRAPHY, + 57 "HLLSKETCH": TokenType.HLLSKETCH, + 58 "SUPER": TokenType.SUPER, + 59 "TIME": TokenType.TIMESTAMP, + 60 "TIMETZ": TokenType.TIMESTAMPTZ, + 61 "TOP": TokenType.TOP, + 62 "UNLOAD": TokenType.COMMAND, + 63 "VARBYTE": TokenType.VARBINARY, + 64 } + 65 + 66 class Generator(Postgres.Generator): + 67 TYPE_MAPPING = { + 68 **Postgres.Generator.TYPE_MAPPING, # type: ignore + 69 exp.DataType.Type.BINARY: "VARBYTE", + 70 exp.DataType.Type.VARBINARY: "VARBYTE", + 71 exp.DataType.Type.INT: "INTEGER", + 72 } + 73 + 74 PROPERTIES_LOCATION = { + 75 **Postgres.Generator.PROPERTIES_LOCATION, # type: ignore + 76 exp.LikeProperty: exp.Properties.Location.POST_WITH, + 77 } + 78 + 79 TRANSFORMS = { + 80 **Postgres.Generator.TRANSFORMS, # type: ignore + 81 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore + 82 exp.DateAdd: lambda self, e: self.func( + 83 "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this + 84 ), + 85 exp.DateDiff: lambda self, e: self.func( + 86 "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this + 87 ), + 88 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", + 89 exp.DistStyleProperty: lambda self, e: self.naked_property(e), + 90 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", + 91 } + 92 + 93 # Redshift uses the POW | POWER (expr1, expr2) syntax instead of expr1 ^ expr2 (postgres) + 94 TRANSFORMS.pop(exp.Pow) 95 - 96 # Redshift uses the POW | POWER (expr1, expr2) syntax instead of expr1 ^ expr2 (postgres) - 97 TRANSFORMS.pop(exp.Pow) - 98 - 99 def values_sql(self, expression: exp.Values) -> str: -100 """ -101 Converts `VALUES...` expression into a series of unions. -102 -103 Note: If you have a lot of unions then this will result in a large number of recursive statements to -104 evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be -105 very slow. -106 """ -107 if not isinstance(expression.unnest().parent, exp.From): -108 return super().values_sql(expression) -109 rows = [tuple_exp.expressions for tuple_exp in expression.expressions] -110 selects = [] -111 for i, row in enumerate(rows): -112 if i == 0 and expression.alias: -113 row = [ -114 exp.alias_(value, column_name) -115 for value, column_name in zip(row, expression.args["alias"].args["columns"]) -116 ] -117 selects.append(exp.Select(expressions=row)) -118 subquery_expression = selects[0] -119 if len(selects) > 1: -120 for select in selects[1:]: -121 subquery_expression = exp.union(subquery_expression, select, distinct=False) -122 return self.subquery_sql(subquery_expression.subquery(expression.alias)) -123 -124 def with_properties(self, properties: exp.Properties) -> str: -125 """Redshift doesn't have `WITH` as part of their with_properties so we remove it""" -126 return self.properties(properties, prefix=" ", suffix="") -127 -128 def renametable_sql(self, expression: exp.RenameTable) -> str: -129 """Redshift only supports defining the table name itself (not the db) when renaming tables""" -130 expression = expression.copy() -131 target_table = expression.this -132 for arg in target_table.args: -133 if arg != "this": -134 target_table.set(arg, None) -135 this = self.sql(expression, "this") -136 return f"RENAME TO {this}" -137 -138 def datatype_sql(self, expression: exp.DataType) -> str: -139 """ -140 Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean -141 VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type -142 without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert -143 `TEXT` to `VARCHAR`. -144 """ -145 if expression.this == exp.DataType.Type.TEXT: -146 expression = expression.copy() -147 expression.set("this", exp.DataType.Type.VARCHAR) -148 precision = expression.args.get("expressions") -149 if not precision: -150 expression.append("expressions", exp.Var(this="MAX")) -151 return super().datatype_sql(expression) + 96 def values_sql(self, expression: exp.Values) -> str: + 97 """ + 98 Converts `VALUES...` expression into a series of unions. + 99 +100 Note: If you have a lot of unions then this will result in a large number of recursive statements to +101 evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be +102 very slow. +103 """ +104 if not isinstance(expression.unnest().parent, exp.From): +105 return super().values_sql(expression) +106 rows = [tuple_exp.expressions for tuple_exp in expression.expressions] +107 selects = [] +108 for i, row in enumerate(rows): +109 if i == 0 and expression.alias: +110 row = [ +111 exp.alias_(value, column_name) +112 for value, column_name in zip(row, expression.args["alias"].args["columns"]) +113 ] +114 selects.append(exp.Select(expressions=row)) +115 subquery_expression = selects[0] +116 if len(selects) > 1: +117 for select in selects[1:]: +118 subquery_expression = exp.union(subquery_expression, select, distinct=False) +119 return self.subquery_sql(subquery_expression.subquery(expression.alias)) +120 +121 def with_properties(self, properties: exp.Properties) -> str: +122 """Redshift doesn't have `WITH` as part of their with_properties so we remove it""" +123 return self.properties(properties, prefix=" ", suffix="") +124 +125 def renametable_sql(self, expression: exp.RenameTable) -> str: +126 """Redshift only supports defining the table name itself (not the db) when renaming tables""" +127 expression = expression.copy() +128 target_table = expression.this +129 for arg in target_table.args: +130 if arg != "this": +131 target_table.set(arg, None) +132 this = self.sql(expression, "this") +133 return f"RENAME TO {this}" +134 +135 def datatype_sql(self, expression: exp.DataType) -> str: +136 """ +137 Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean +138 VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type +139 without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert +140 `TEXT` to `VARCHAR`. +141 """ +142 if expression.this == exp.DataType.Type.TEXT: +143 expression = expression.copy() +144 expression.set("this", exp.DataType.Type.VARCHAR) +145 precision = expression.args.get("expressions") +146 if not precision: +147 expression.append("expressions", exp.Var(this="MAX")) +148 return super().datatype_sql(expression)
@@ -255,146 +252,144 @@ -
 13class Redshift(Postgres):
- 14    time_format = "'YYYY-MM-DD HH:MI:SS'"
- 15    time_mapping = {
- 16        **Postgres.time_mapping,  # type: ignore
- 17        "MON": "%b",
- 18        "HH": "%H",
- 19    }
- 20
- 21    class Parser(Postgres.Parser):
- 22        FUNCTIONS = {
- 23            **Postgres.Parser.FUNCTIONS,  # type: ignore
- 24            "DATEADD": lambda args: exp.DateAdd(
- 25                this=seq_get(args, 2),
- 26                expression=seq_get(args, 1),
- 27                unit=seq_get(args, 0),
- 28            ),
- 29            "DATEDIFF": lambda args: exp.DateDiff(
- 30                this=seq_get(args, 2),
- 31                expression=seq_get(args, 1),
- 32                unit=seq_get(args, 0),
- 33            ),
- 34            "DECODE": exp.Matches.from_arg_list,
- 35            "NVL": exp.Coalesce.from_arg_list,
- 36        }
+            
 12class Redshift(Postgres):
+ 13    time_format = "'YYYY-MM-DD HH:MI:SS'"
+ 14    time_mapping = {
+ 15        **Postgres.time_mapping,  # type: ignore
+ 16        "MON": "%b",
+ 17        "HH": "%H",
+ 18    }
+ 19
+ 20    class Parser(Postgres.Parser):
+ 21        FUNCTIONS = {
+ 22            **Postgres.Parser.FUNCTIONS,  # type: ignore
+ 23            "DATEADD": lambda args: exp.DateAdd(
+ 24                this=seq_get(args, 2),
+ 25                expression=seq_get(args, 1),
+ 26                unit=seq_get(args, 0),
+ 27            ),
+ 28            "DATEDIFF": lambda args: exp.DateDiff(
+ 29                this=seq_get(args, 2),
+ 30                expression=seq_get(args, 1),
+ 31                unit=seq_get(args, 0),
+ 32            ),
+ 33            "NVL": exp.Coalesce.from_arg_list,
+ 34        }
+ 35
+ 36        CONVERT_TYPE_FIRST = True
  37
- 38        CONVERT_TYPE_FIRST = True
- 39
- 40        def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]:
- 41            this = super()._parse_types(check_func=check_func)
- 42
- 43            if (
- 44                isinstance(this, exp.DataType)
- 45                and this.this == exp.DataType.Type.VARCHAR
- 46                and this.expressions
- 47                and this.expressions[0] == exp.column("MAX")
- 48            ):
- 49                this.set("expressions", [exp.Var(this="MAX")])
+ 38        def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]:
+ 39            this = super()._parse_types(check_func=check_func)
+ 40
+ 41            if (
+ 42                isinstance(this, exp.DataType)
+ 43                and this.this == exp.DataType.Type.VARCHAR
+ 44                and this.expressions
+ 45                and this.expressions[0] == exp.column("MAX")
+ 46            ):
+ 47                this.set("expressions", [exp.Var(this="MAX")])
+ 48
+ 49            return this
  50
- 51            return this
- 52
- 53    class Tokenizer(Postgres.Tokenizer):
- 54        STRING_ESCAPES = ["\\"]
- 55
- 56        KEYWORDS = {
- 57            **Postgres.Tokenizer.KEYWORDS,  # type: ignore
- 58            "GEOMETRY": TokenType.GEOMETRY,
- 59            "GEOGRAPHY": TokenType.GEOGRAPHY,
- 60            "HLLSKETCH": TokenType.HLLSKETCH,
- 61            "SUPER": TokenType.SUPER,
- 62            "TIME": TokenType.TIMESTAMP,
- 63            "TIMETZ": TokenType.TIMESTAMPTZ,
- 64            "TOP": TokenType.TOP,
- 65            "UNLOAD": TokenType.COMMAND,
- 66            "VARBYTE": TokenType.VARBINARY,
- 67        }
- 68
- 69    class Generator(Postgres.Generator):
- 70        TYPE_MAPPING = {
- 71            **Postgres.Generator.TYPE_MAPPING,  # type: ignore
- 72            exp.DataType.Type.BINARY: "VARBYTE",
- 73            exp.DataType.Type.VARBINARY: "VARBYTE",
- 74            exp.DataType.Type.INT: "INTEGER",
- 75        }
- 76
- 77        PROPERTIES_LOCATION = {
- 78            **Postgres.Generator.PROPERTIES_LOCATION,  # type: ignore
- 79            exp.LikeProperty: exp.Properties.Location.POST_WITH,
- 80        }
- 81
- 82        TRANSFORMS = {
- 83            **Postgres.Generator.TRANSFORMS,  # type: ignore
- 84            **transforms.ELIMINATE_DISTINCT_ON,  # type: ignore
- 85            exp.DateAdd: lambda self, e: self.func(
- 86                "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this
- 87            ),
- 88            exp.DateDiff: lambda self, e: self.func(
- 89                "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this
- 90            ),
- 91            exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})",
- 92            exp.DistStyleProperty: lambda self, e: self.naked_property(e),
- 93            exp.Matches: rename_func("DECODE"),
- 94            exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})",
- 95        }
+ 51    class Tokenizer(Postgres.Tokenizer):
+ 52        STRING_ESCAPES = ["\\"]
+ 53
+ 54        KEYWORDS = {
+ 55            **Postgres.Tokenizer.KEYWORDS,  # type: ignore
+ 56            "GEOMETRY": TokenType.GEOMETRY,
+ 57            "GEOGRAPHY": TokenType.GEOGRAPHY,
+ 58            "HLLSKETCH": TokenType.HLLSKETCH,
+ 59            "SUPER": TokenType.SUPER,
+ 60            "TIME": TokenType.TIMESTAMP,
+ 61            "TIMETZ": TokenType.TIMESTAMPTZ,
+ 62            "TOP": TokenType.TOP,
+ 63            "UNLOAD": TokenType.COMMAND,
+ 64            "VARBYTE": TokenType.VARBINARY,
+ 65        }
+ 66
+ 67    class Generator(Postgres.Generator):
+ 68        TYPE_MAPPING = {
+ 69            **Postgres.Generator.TYPE_MAPPING,  # type: ignore
+ 70            exp.DataType.Type.BINARY: "VARBYTE",
+ 71            exp.DataType.Type.VARBINARY: "VARBYTE",
+ 72            exp.DataType.Type.INT: "INTEGER",
+ 73        }
+ 74
+ 75        PROPERTIES_LOCATION = {
+ 76            **Postgres.Generator.PROPERTIES_LOCATION,  # type: ignore
+ 77            exp.LikeProperty: exp.Properties.Location.POST_WITH,
+ 78        }
+ 79
+ 80        TRANSFORMS = {
+ 81            **Postgres.Generator.TRANSFORMS,  # type: ignore
+ 82            **transforms.ELIMINATE_DISTINCT_ON,  # type: ignore
+ 83            exp.DateAdd: lambda self, e: self.func(
+ 84                "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this
+ 85            ),
+ 86            exp.DateDiff: lambda self, e: self.func(
+ 87                "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this
+ 88            ),
+ 89            exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})",
+ 90            exp.DistStyleProperty: lambda self, e: self.naked_property(e),
+ 91            exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})",
+ 92        }
+ 93
+ 94        # Redshift uses the POW | POWER (expr1, expr2) syntax instead of expr1 ^ expr2 (postgres)
+ 95        TRANSFORMS.pop(exp.Pow)
  96
- 97        # Redshift uses the POW | POWER (expr1, expr2) syntax instead of expr1 ^ expr2 (postgres)
- 98        TRANSFORMS.pop(exp.Pow)
- 99
-100        def values_sql(self, expression: exp.Values) -> str:
-101            """
-102            Converts `VALUES...` expression into a series of unions.
-103
-104            Note: If you have a lot of unions then this will result in a large number of recursive statements to
-105            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
-106            very slow.
-107            """
-108            if not isinstance(expression.unnest().parent, exp.From):
-109                return super().values_sql(expression)
-110            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
-111            selects = []
-112            for i, row in enumerate(rows):
-113                if i == 0 and expression.alias:
-114                    row = [
-115                        exp.alias_(value, column_name)
-116                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
-117                    ]
-118                selects.append(exp.Select(expressions=row))
-119            subquery_expression = selects[0]
-120            if len(selects) > 1:
-121                for select in selects[1:]:
-122                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
-123            return self.subquery_sql(subquery_expression.subquery(expression.alias))
-124
-125        def with_properties(self, properties: exp.Properties) -> str:
-126            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
-127            return self.properties(properties, prefix=" ", suffix="")
-128
-129        def renametable_sql(self, expression: exp.RenameTable) -> str:
-130            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
-131            expression = expression.copy()
-132            target_table = expression.this
-133            for arg in target_table.args:
-134                if arg != "this":
-135                    target_table.set(arg, None)
-136            this = self.sql(expression, "this")
-137            return f"RENAME TO {this}"
-138
-139        def datatype_sql(self, expression: exp.DataType) -> str:
-140            """
-141            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
-142            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
-143            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
-144            `TEXT` to `VARCHAR`.
-145            """
-146            if expression.this == exp.DataType.Type.TEXT:
-147                expression = expression.copy()
-148                expression.set("this", exp.DataType.Type.VARCHAR)
-149                precision = expression.args.get("expressions")
-150                if not precision:
-151                    expression.append("expressions", exp.Var(this="MAX"))
-152            return super().datatype_sql(expression)
+ 97        def values_sql(self, expression: exp.Values) -> str:
+ 98            """
+ 99            Converts `VALUES...` expression into a series of unions.
+100
+101            Note: If you have a lot of unions then this will result in a large number of recursive statements to
+102            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
+103            very slow.
+104            """
+105            if not isinstance(expression.unnest().parent, exp.From):
+106                return super().values_sql(expression)
+107            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
+108            selects = []
+109            for i, row in enumerate(rows):
+110                if i == 0 and expression.alias:
+111                    row = [
+112                        exp.alias_(value, column_name)
+113                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
+114                    ]
+115                selects.append(exp.Select(expressions=row))
+116            subquery_expression = selects[0]
+117            if len(selects) > 1:
+118                for select in selects[1:]:
+119                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
+120            return self.subquery_sql(subquery_expression.subquery(expression.alias))
+121
+122        def with_properties(self, properties: exp.Properties) -> str:
+123            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
+124            return self.properties(properties, prefix=" ", suffix="")
+125
+126        def renametable_sql(self, expression: exp.RenameTable) -> str:
+127            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
+128            expression = expression.copy()
+129            target_table = expression.this
+130            for arg in target_table.args:
+131                if arg != "this":
+132                    target_table.set(arg, None)
+133            this = self.sql(expression, "this")
+134            return f"RENAME TO {this}"
+135
+136        def datatype_sql(self, expression: exp.DataType) -> str:
+137            """
+138            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
+139            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
+140            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
+141            `TEXT` to `VARCHAR`.
+142            """
+143            if expression.this == exp.DataType.Type.TEXT:
+144                expression = expression.copy()
+145                expression.set("this", exp.DataType.Type.VARCHAR)
+146                precision = expression.args.get("expressions")
+147                if not precision:
+148                    expression.append("expressions", exp.Var(this="MAX"))
+149            return super().datatype_sql(expression)
 
@@ -429,37 +424,36 @@
-
21    class Parser(Postgres.Parser):
-22        FUNCTIONS = {
-23            **Postgres.Parser.FUNCTIONS,  # type: ignore
-24            "DATEADD": lambda args: exp.DateAdd(
-25                this=seq_get(args, 2),
-26                expression=seq_get(args, 1),
-27                unit=seq_get(args, 0),
-28            ),
-29            "DATEDIFF": lambda args: exp.DateDiff(
-30                this=seq_get(args, 2),
-31                expression=seq_get(args, 1),
-32                unit=seq_get(args, 0),
-33            ),
-34            "DECODE": exp.Matches.from_arg_list,
-35            "NVL": exp.Coalesce.from_arg_list,
-36        }
+            
20    class Parser(Postgres.Parser):
+21        FUNCTIONS = {
+22            **Postgres.Parser.FUNCTIONS,  # type: ignore
+23            "DATEADD": lambda args: exp.DateAdd(
+24                this=seq_get(args, 2),
+25                expression=seq_get(args, 1),
+26                unit=seq_get(args, 0),
+27            ),
+28            "DATEDIFF": lambda args: exp.DateDiff(
+29                this=seq_get(args, 2),
+30                expression=seq_get(args, 1),
+31                unit=seq_get(args, 0),
+32            ),
+33            "NVL": exp.Coalesce.from_arg_list,
+34        }
+35
+36        CONVERT_TYPE_FIRST = True
 37
-38        CONVERT_TYPE_FIRST = True
-39
-40        def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]:
-41            this = super()._parse_types(check_func=check_func)
-42
-43            if (
-44                isinstance(this, exp.DataType)
-45                and this.this == exp.DataType.Type.VARCHAR
-46                and this.expressions
-47                and this.expressions[0] == exp.column("MAX")
-48            ):
-49                this.set("expressions", [exp.Var(this="MAX")])
-50
-51            return this
+38        def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]:
+39            this = super()._parse_types(check_func=check_func)
+40
+41            if (
+42                isinstance(this, exp.DataType)
+43                and this.this == exp.DataType.Type.VARCHAR
+44                and this.expressions
+45                and this.expressions[0] == exp.column("MAX")
+46            ):
+47                this.set("expressions", [exp.Var(this="MAX")])
+48
+49            return this
 
@@ -516,21 +510,21 @@ Default: "nulls_are_small"
-
53    class Tokenizer(Postgres.Tokenizer):
-54        STRING_ESCAPES = ["\\"]
-55
-56        KEYWORDS = {
-57            **Postgres.Tokenizer.KEYWORDS,  # type: ignore
-58            "GEOMETRY": TokenType.GEOMETRY,
-59            "GEOGRAPHY": TokenType.GEOGRAPHY,
-60            "HLLSKETCH": TokenType.HLLSKETCH,
-61            "SUPER": TokenType.SUPER,
-62            "TIME": TokenType.TIMESTAMP,
-63            "TIMETZ": TokenType.TIMESTAMPTZ,
-64            "TOP": TokenType.TOP,
-65            "UNLOAD": TokenType.COMMAND,
-66            "VARBYTE": TokenType.VARBINARY,
-67        }
+            
51    class Tokenizer(Postgres.Tokenizer):
+52        STRING_ESCAPES = ["\\"]
+53
+54        KEYWORDS = {
+55            **Postgres.Tokenizer.KEYWORDS,  # type: ignore
+56            "GEOMETRY": TokenType.GEOMETRY,
+57            "GEOGRAPHY": TokenType.GEOGRAPHY,
+58            "HLLSKETCH": TokenType.HLLSKETCH,
+59            "SUPER": TokenType.SUPER,
+60            "TIME": TokenType.TIMESTAMP,
+61            "TIMETZ": TokenType.TIMESTAMPTZ,
+62            "TOP": TokenType.TOP,
+63            "UNLOAD": TokenType.COMMAND,
+64            "VARBYTE": TokenType.VARBINARY,
+65        }
 
@@ -558,90 +552,89 @@ Default: "nulls_are_small"
-
 69    class Generator(Postgres.Generator):
- 70        TYPE_MAPPING = {
- 71            **Postgres.Generator.TYPE_MAPPING,  # type: ignore
- 72            exp.DataType.Type.BINARY: "VARBYTE",
- 73            exp.DataType.Type.VARBINARY: "VARBYTE",
- 74            exp.DataType.Type.INT: "INTEGER",
- 75        }
- 76
- 77        PROPERTIES_LOCATION = {
- 78            **Postgres.Generator.PROPERTIES_LOCATION,  # type: ignore
- 79            exp.LikeProperty: exp.Properties.Location.POST_WITH,
- 80        }
- 81
- 82        TRANSFORMS = {
- 83            **Postgres.Generator.TRANSFORMS,  # type: ignore
- 84            **transforms.ELIMINATE_DISTINCT_ON,  # type: ignore
- 85            exp.DateAdd: lambda self, e: self.func(
- 86                "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this
- 87            ),
- 88            exp.DateDiff: lambda self, e: self.func(
- 89                "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this
- 90            ),
- 91            exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})",
- 92            exp.DistStyleProperty: lambda self, e: self.naked_property(e),
- 93            exp.Matches: rename_func("DECODE"),
- 94            exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})",
- 95        }
+            
 67    class Generator(Postgres.Generator):
+ 68        TYPE_MAPPING = {
+ 69            **Postgres.Generator.TYPE_MAPPING,  # type: ignore
+ 70            exp.DataType.Type.BINARY: "VARBYTE",
+ 71            exp.DataType.Type.VARBINARY: "VARBYTE",
+ 72            exp.DataType.Type.INT: "INTEGER",
+ 73        }
+ 74
+ 75        PROPERTIES_LOCATION = {
+ 76            **Postgres.Generator.PROPERTIES_LOCATION,  # type: ignore
+ 77            exp.LikeProperty: exp.Properties.Location.POST_WITH,
+ 78        }
+ 79
+ 80        TRANSFORMS = {
+ 81            **Postgres.Generator.TRANSFORMS,  # type: ignore
+ 82            **transforms.ELIMINATE_DISTINCT_ON,  # type: ignore
+ 83            exp.DateAdd: lambda self, e: self.func(
+ 84                "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this
+ 85            ),
+ 86            exp.DateDiff: lambda self, e: self.func(
+ 87                "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this
+ 88            ),
+ 89            exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})",
+ 90            exp.DistStyleProperty: lambda self, e: self.naked_property(e),
+ 91            exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})",
+ 92        }
+ 93
+ 94        # Redshift uses the POW | POWER (expr1, expr2) syntax instead of expr1 ^ expr2 (postgres)
+ 95        TRANSFORMS.pop(exp.Pow)
  96
- 97        # Redshift uses the POW | POWER (expr1, expr2) syntax instead of expr1 ^ expr2 (postgres)
- 98        TRANSFORMS.pop(exp.Pow)
- 99
-100        def values_sql(self, expression: exp.Values) -> str:
-101            """
-102            Converts `VALUES...` expression into a series of unions.
-103
-104            Note: If you have a lot of unions then this will result in a large number of recursive statements to
-105            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
-106            very slow.
-107            """
-108            if not isinstance(expression.unnest().parent, exp.From):
-109                return super().values_sql(expression)
-110            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
-111            selects = []
-112            for i, row in enumerate(rows):
-113                if i == 0 and expression.alias:
-114                    row = [
-115                        exp.alias_(value, column_name)
-116                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
-117                    ]
-118                selects.append(exp.Select(expressions=row))
-119            subquery_expression = selects[0]
-120            if len(selects) > 1:
-121                for select in selects[1:]:
-122                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
-123            return self.subquery_sql(subquery_expression.subquery(expression.alias))
-124
-125        def with_properties(self, properties: exp.Properties) -> str:
-126            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
-127            return self.properties(properties, prefix=" ", suffix="")
-128
-129        def renametable_sql(self, expression: exp.RenameTable) -> str:
-130            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
-131            expression = expression.copy()
-132            target_table = expression.this
-133            for arg in target_table.args:
-134                if arg != "this":
-135                    target_table.set(arg, None)
-136            this = self.sql(expression, "this")
-137            return f"RENAME TO {this}"
-138
-139        def datatype_sql(self, expression: exp.DataType) -> str:
-140            """
-141            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
-142            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
-143            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
-144            `TEXT` to `VARCHAR`.
-145            """
-146            if expression.this == exp.DataType.Type.TEXT:
-147                expression = expression.copy()
-148                expression.set("this", exp.DataType.Type.VARCHAR)
-149                precision = expression.args.get("expressions")
-150                if not precision:
-151                    expression.append("expressions", exp.Var(this="MAX"))
-152            return super().datatype_sql(expression)
+ 97        def values_sql(self, expression: exp.Values) -> str:
+ 98            """
+ 99            Converts `VALUES...` expression into a series of unions.
+100
+101            Note: If you have a lot of unions then this will result in a large number of recursive statements to
+102            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
+103            very slow.
+104            """
+105            if not isinstance(expression.unnest().parent, exp.From):
+106                return super().values_sql(expression)
+107            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
+108            selects = []
+109            for i, row in enumerate(rows):
+110                if i == 0 and expression.alias:
+111                    row = [
+112                        exp.alias_(value, column_name)
+113                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
+114                    ]
+115                selects.append(exp.Select(expressions=row))
+116            subquery_expression = selects[0]
+117            if len(selects) > 1:
+118                for select in selects[1:]:
+119                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
+120            return self.subquery_sql(subquery_expression.subquery(expression.alias))
+121
+122        def with_properties(self, properties: exp.Properties) -> str:
+123            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
+124            return self.properties(properties, prefix=" ", suffix="")
+125
+126        def renametable_sql(self, expression: exp.RenameTable) -> str:
+127            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
+128            expression = expression.copy()
+129            target_table = expression.this
+130            for arg in target_table.args:
+131                if arg != "this":
+132                    target_table.set(arg, None)
+133            this = self.sql(expression, "this")
+134            return f"RENAME TO {this}"
+135
+136        def datatype_sql(self, expression: exp.DataType) -> str:
+137            """
+138            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
+139            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
+140            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
+141            `TEXT` to `VARCHAR`.
+142            """
+143            if expression.this == exp.DataType.Type.TEXT:
+144                expression = expression.copy()
+145                expression.set("this", exp.DataType.Type.VARCHAR)
+146                precision = expression.args.get("expressions")
+147                if not precision:
+148                    expression.append("expressions", exp.Var(this="MAX"))
+149            return super().datatype_sql(expression)
 
@@ -700,30 +693,30 @@ Default: True
-
100        def values_sql(self, expression: exp.Values) -> str:
-101            """
-102            Converts `VALUES...` expression into a series of unions.
-103
-104            Note: If you have a lot of unions then this will result in a large number of recursive statements to
-105            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
-106            very slow.
-107            """
-108            if not isinstance(expression.unnest().parent, exp.From):
-109                return super().values_sql(expression)
-110            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
-111            selects = []
-112            for i, row in enumerate(rows):
-113                if i == 0 and expression.alias:
-114                    row = [
-115                        exp.alias_(value, column_name)
-116                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
-117                    ]
-118                selects.append(exp.Select(expressions=row))
-119            subquery_expression = selects[0]
-120            if len(selects) > 1:
-121                for select in selects[1:]:
-122                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
-123            return self.subquery_sql(subquery_expression.subquery(expression.alias))
+            
 97        def values_sql(self, expression: exp.Values) -> str:
+ 98            """
+ 99            Converts `VALUES...` expression into a series of unions.
+100
+101            Note: If you have a lot of unions then this will result in a large number of recursive statements to
+102            evaluate the expression. You may need to increase `sys.setrecursionlimit` to run and it can also be
+103            very slow.
+104            """
+105            if not isinstance(expression.unnest().parent, exp.From):
+106                return super().values_sql(expression)
+107            rows = [tuple_exp.expressions for tuple_exp in expression.expressions]
+108            selects = []
+109            for i, row in enumerate(rows):
+110                if i == 0 and expression.alias:
+111                    row = [
+112                        exp.alias_(value, column_name)
+113                        for value, column_name in zip(row, expression.args["alias"].args["columns"])
+114                    ]
+115                selects.append(exp.Select(expressions=row))
+116            subquery_expression = selects[0]
+117            if len(selects) > 1:
+118                for select in selects[1:]:
+119                    subquery_expression = exp.union(subquery_expression, select, distinct=False)
+120            return self.subquery_sql(subquery_expression.subquery(expression.alias))
 
@@ -747,9 +740,9 @@ very slow.

-
125        def with_properties(self, properties: exp.Properties) -> str:
-126            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
-127            return self.properties(properties, prefix=" ", suffix="")
+            
122        def with_properties(self, properties: exp.Properties) -> str:
+123            """Redshift doesn't have `WITH` as part of their with_properties so we remove it"""
+124            return self.properties(properties, prefix=" ", suffix="")
 
@@ -769,15 +762,15 @@ very slow.

-
129        def renametable_sql(self, expression: exp.RenameTable) -> str:
-130            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
-131            expression = expression.copy()
-132            target_table = expression.this
-133            for arg in target_table.args:
-134                if arg != "this":
-135                    target_table.set(arg, None)
-136            this = self.sql(expression, "this")
-137            return f"RENAME TO {this}"
+            
126        def renametable_sql(self, expression: exp.RenameTable) -> str:
+127            """Redshift only supports defining the table name itself (not the db) when renaming tables"""
+128            expression = expression.copy()
+129            target_table = expression.this
+130            for arg in target_table.args:
+131                if arg != "this":
+132                    target_table.set(arg, None)
+133            this = self.sql(expression, "this")
+134            return f"RENAME TO {this}"
 
@@ -797,20 +790,20 @@ very slow.

-
139        def datatype_sql(self, expression: exp.DataType) -> str:
-140            """
-141            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
-142            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
-143            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
-144            `TEXT` to `VARCHAR`.
-145            """
-146            if expression.this == exp.DataType.Type.TEXT:
-147                expression = expression.copy()
-148                expression.set("this", exp.DataType.Type.VARCHAR)
-149                precision = expression.args.get("expressions")
-150                if not precision:
-151                    expression.append("expressions", exp.Var(this="MAX"))
-152            return super().datatype_sql(expression)
+            
136        def datatype_sql(self, expression: exp.DataType) -> str:
+137            """
+138            Redshift converts the `TEXT` data type to `VARCHAR(255)` by default when people more generally mean
+139            VARCHAR of max length which is `VARCHAR(max)` in Redshift. Therefore if we get a `TEXT` data type
+140            without precision we convert it to `VARCHAR(max)` and if it does have precision then we just convert
+141            `TEXT` to `VARCHAR`.
+142            """
+143            if expression.this == exp.DataType.Type.TEXT:
+144                expression = expression.copy()
+145                expression.set("this", exp.DataType.Type.VARCHAR)
+146                precision = expression.args.get("expressions")
+147                if not precision:
+148                    expression.append("expressions", exp.Var(this="MAX"))
+149            return super().datatype_sql(expression)
 
@@ -842,6 +835,7 @@ without precision we convert it to VARCHAR(max) and if it does have
cache_sql
characterset_sql
column_sql
+
columnposition_sql
columndef_sql
columnconstraint_sql
autoincrementcolumnconstraint_sql
@@ -956,6 +950,7 @@ without precision we convert it to VARCHAR(max) and if it does have
primarykey_sql
unique_sql
if_sql
+
matchagainst_sql
jsonkeyvalue_sql
jsonobject_sql
in_sql
@@ -1006,8 +1001,10 @@ without precision we convert it to VARCHAR(max) and if it does have
gt_sql
gte_sql
ilike_sql
+
ilikeany_sql
is_sql
like_sql
+
likeany_sql
similarto_sql
lt_sql
lte_sql
diff --git a/docs/sqlglot/dialects/snowflake.html b/docs/sqlglot/dialects/snowflake.html index 8202f0e..f78f8c2 100644 --- a/docs/sqlglot/dialects/snowflake.html +++ b/docs/sqlglot/dialects/snowflake.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.snowflake API documentation @@ -48,12 +48,6 @@
  • Snowflake.Generator
      -
    • - ilikeany_sql -
    • -
    • - likeany_sql -
    • except_op
    • @@ -285,224 +279,223 @@ 179 "ARRAYAGG": exp.ArrayAgg.from_arg_list, 180 "ARRAY_CONSTRUCT": exp.Array.from_arg_list, 181 "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list, -182 "DATE_TRUNC": date_trunc_to_time, -183 "DATEADD": lambda args: exp.DateAdd( -184 this=seq_get(args, 2), -185 expression=seq_get(args, 1), -186 unit=seq_get(args, 0), -187 ), -188 "DATEDIFF": lambda args: exp.DateDiff( -189 this=seq_get(args, 2), -190 expression=seq_get(args, 1), -191 unit=seq_get(args, 0), -192 ), -193 "DECODE": exp.Matches.from_arg_list, -194 "DIV0": _div0_to_if, -195 "IFF": exp.If.from_arg_list, -196 "NULLIFZERO": _nullifzero_to_if, -197 "OBJECT_CONSTRUCT": parser.parse_var_map, -198 "RLIKE": exp.RegexpLike.from_arg_list, -199 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), -200 "TO_ARRAY": exp.Array.from_arg_list, -201 "TO_VARCHAR": exp.ToChar.from_arg_list, -202 "TO_TIMESTAMP": _snowflake_to_timestamp, -203 "ZEROIFNULL": _zeroifnull_to_if, -204 } -205 -206 FUNCTION_PARSERS = { -207 **parser.Parser.FUNCTION_PARSERS, -208 "DATE_PART": _parse_date_part, -209 } -210 FUNCTION_PARSERS.pop("TRIM") -211 -212 FUNC_TOKENS = { -213 *parser.Parser.FUNC_TOKENS, -214 TokenType.RLIKE, -215 TokenType.TABLE, -216 } -217 -218 COLUMN_OPERATORS = { -219 **parser.Parser.COLUMN_OPERATORS, # type: ignore -220 TokenType.COLON: lambda self, this, path: self.expression( -221 exp.Bracket, -222 this=this, -223 expressions=[path], -224 ), -225 } -226 -227 RANGE_PARSERS = { -228 **parser.Parser.RANGE_PARSERS, # type: ignore -229 TokenType.LIKE_ANY: binary_range_parser(exp.LikeAny), -230 TokenType.ILIKE_ANY: binary_range_parser(exp.ILikeAny), -231 } -232 -233 ALTER_PARSERS = { -234 **parser.Parser.ALTER_PARSERS, # type: ignore -235 "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True), -236 "SET": lambda self: self._parse_alter_table_set_tag(), -237 } -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 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.DateDiff: lambda self, e: self.func( -280 "DATEDIFF", e.text("unit"), e.expression, e.this -281 ), -282 exp.DateStrToDate: datestrtodate_sql, -283 exp.DataType: _datatype_sql, -284 exp.If: rename_func("IFF"), -285 exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), -286 exp.LogicalOr: rename_func("BOOLOR_AGG"), -287 exp.LogicalAnd: rename_func("BOOLAND_AGG"), -288 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), -289 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -290 exp.Matches: rename_func("DECODE"), -291 exp.StrPosition: lambda self, e: self.func( -292 "POSITION", e.args.get("substr"), e.this, e.args.get("position") -293 ), -294 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -295 exp.TimestampTrunc: timestamptrunc_sql, -296 exp.TimeStrToTime: timestrtotime_sql, -297 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", -298 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), -299 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -300 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), -301 exp.UnixToTime: _unix_to_time_sql, -302 exp.DayOfWeek: rename_func("DAYOFWEEK"), -303 exp.Max: max_or_greatest, -304 exp.Min: min_or_least, -305 } -306 -307 TYPE_MAPPING = { -308 **generator.Generator.TYPE_MAPPING, # type: ignore -309 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", +182 "CONVERT_TIMEZONE": lambda args: exp.AtTimeZone( +183 this=seq_get(args, 1), +184 zone=seq_get(args, 0), +185 ), +186 "DATE_TRUNC": date_trunc_to_time, +187 "DATEADD": lambda args: exp.DateAdd( +188 this=seq_get(args, 2), +189 expression=seq_get(args, 1), +190 unit=seq_get(args, 0), +191 ), +192 "DATEDIFF": lambda args: exp.DateDiff( +193 this=seq_get(args, 2), +194 expression=seq_get(args, 1), +195 unit=seq_get(args, 0), +196 ), +197 "DIV0": _div0_to_if, +198 "IFF": exp.If.from_arg_list, +199 "NULLIFZERO": _nullifzero_to_if, +200 "OBJECT_CONSTRUCT": parser.parse_var_map, +201 "RLIKE": exp.RegexpLike.from_arg_list, +202 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), +203 "TO_ARRAY": exp.Array.from_arg_list, +204 "TO_VARCHAR": exp.ToChar.from_arg_list, +205 "TO_TIMESTAMP": _snowflake_to_timestamp, +206 "ZEROIFNULL": _zeroifnull_to_if, +207 } +208 +209 FUNCTION_PARSERS = { +210 **parser.Parser.FUNCTION_PARSERS, +211 "DATE_PART": _parse_date_part, +212 } +213 FUNCTION_PARSERS.pop("TRIM") +214 +215 FUNC_TOKENS = { +216 *parser.Parser.FUNC_TOKENS, +217 TokenType.RLIKE, +218 TokenType.TABLE, +219 } +220 +221 COLUMN_OPERATORS = { +222 **parser.Parser.COLUMN_OPERATORS, # type: ignore +223 TokenType.COLON: lambda self, this, path: self.expression( +224 exp.Bracket, +225 this=this, +226 expressions=[path], +227 ), +228 } +229 +230 RANGE_PARSERS = { +231 **parser.Parser.RANGE_PARSERS, # type: ignore +232 TokenType.LIKE_ANY: binary_range_parser(exp.LikeAny), +233 TokenType.ILIKE_ANY: binary_range_parser(exp.ILikeAny), +234 } +235 +236 ALTER_PARSERS = { +237 **parser.Parser.ALTER_PARSERS, # type: ignore +238 "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True), +239 "SET": lambda self: self._parse_alter_table_set_tag(), +240 } +241 +242 def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression: +243 self._match_text_seq("TAG") +244 parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction) +245 return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset) +246 +247 class Tokenizer(tokens.Tokenizer): +248 QUOTES = ["'", "$$"] +249 STRING_ESCAPES = ["\\", "'"] +250 +251 KEYWORDS = { +252 **tokens.Tokenizer.KEYWORDS, +253 "EXCLUDE": TokenType.EXCEPT, +254 "ILIKE ANY": TokenType.ILIKE_ANY, +255 "LIKE ANY": TokenType.LIKE_ANY, +256 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, +257 "PUT": TokenType.COMMAND, +258 "RENAME": TokenType.REPLACE, +259 "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ, +260 "TIMESTAMP_NTZ": TokenType.TIMESTAMP, +261 "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ, +262 "TIMESTAMPNTZ": TokenType.TIMESTAMP, +263 "MINUS": TokenType.EXCEPT, +264 "SAMPLE": TokenType.TABLE_SAMPLE, +265 } +266 +267 SINGLE_TOKENS = { +268 **tokens.Tokenizer.SINGLE_TOKENS, +269 "$": TokenType.PARAMETER, +270 } +271 +272 class Generator(generator.Generator): +273 PARAMETER_TOKEN = "$" +274 MATCHED_BY_SOURCE = False +275 +276 TRANSFORMS = { +277 **generator.Generator.TRANSFORMS, # type: ignore +278 exp.Array: inline_array_sql, +279 exp.ArrayConcat: rename_func("ARRAY_CAT"), +280 exp.ArrayJoin: rename_func("ARRAY_TO_STRING"), +281 exp.AtTimeZone: lambda self, e: self.func( +282 "CONVERT_TIMEZONE", e.args.get("zone"), e.this +283 ), +284 exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this), +285 exp.DateDiff: lambda self, e: self.func( +286 "DATEDIFF", e.text("unit"), e.expression, e.this +287 ), +288 exp.DateStrToDate: datestrtodate_sql, +289 exp.DataType: _datatype_sql, +290 exp.If: rename_func("IFF"), +291 exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +292 exp.LogicalOr: rename_func("BOOLOR_AGG"), +293 exp.LogicalAnd: rename_func("BOOLAND_AGG"), +294 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +295 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", +296 exp.StrPosition: lambda self, e: self.func( +297 "POSITION", e.args.get("substr"), e.this, e.args.get("position") +298 ), +299 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +300 exp.TimestampTrunc: timestamptrunc_sql, +301 exp.TimeStrToTime: timestrtotime_sql, +302 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", +303 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), +304 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +305 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), +306 exp.UnixToTime: _unix_to_time_sql, +307 exp.DayOfWeek: rename_func("DAYOFWEEK"), +308 exp.Max: max_or_greatest, +309 exp.Min: min_or_least, 310 } 311 -312 STAR_MAPPING = { -313 "except": "EXCLUDE", -314 "replace": "RENAME", +312 TYPE_MAPPING = { +313 **generator.Generator.TYPE_MAPPING, # type: ignore +314 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", 315 } 316 -317 PROPERTIES_LOCATION = { -318 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -319 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, +317 STAR_MAPPING = { +318 "except": "EXCLUDE", +319 "replace": "RENAME", 320 } 321 -322 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: -323 return self.binary(expression, "ILIKE ANY") -324 -325 def likeany_sql(self, expression: exp.LikeAny) -> str: -326 return self.binary(expression, "LIKE ANY") -327 -328 def except_op(self, expression): -329 if not expression.args.get("distinct", False): -330 self.unsupported("EXCEPT with All is not supported in Snowflake") -331 return super().except_op(expression) -332 -333 def intersect_op(self, expression): -334 if not expression.args.get("distinct", False): -335 self.unsupported("INTERSECT with All is not supported in Snowflake") -336 return super().intersect_op(expression) -337 -338 def values_sql(self, expression: exp.Values) -> str: -339 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. -340 -341 We also want to make sure that after we find matches where we need to unquote a column that we prevent users -342 from adding quotes to the column by using the `identify` argument when generating the SQL. -343 """ -344 alias = expression.args.get("alias") -345 if alias and alias.args.get("columns"): -346 expression = expression.transform( -347 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -348 if isinstance(node, exp.Identifier) -349 and isinstance(node.parent, exp.TableAlias) -350 and node.arg_key == "columns" -351 else node, -352 ) -353 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) -354 return super().values_sql(expression) -355 -356 def settag_sql(self, expression: exp.SetTag) -> str: -357 action = "UNSET" if expression.args.get("unset") else "SET" -358 return f"{action} TAG {self.expressions(expression)}" -359 -360 def select_sql(self, expression: exp.Select) -> str: -361 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also -362 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need -363 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when -364 generating the SQL. -365 -366 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the -367 expression. This might not be true in a case where the same column name can be sourced from another table that can -368 properly quote but should be true in most cases. -369 """ -370 values_identifiers = set( -371 flatten( -372 (v.args.get("alias") or exp.Alias()).args.get("columns", []) -373 for v in expression.find_all(exp.Values) -374 ) -375 ) -376 if values_identifiers: -377 expression = expression.transform( -378 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -379 if isinstance(node, exp.Identifier) and node in values_identifiers -380 else node, -381 ) -382 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) -383 return super().select_sql(expression) -384 -385 def describe_sql(self, expression: exp.Describe) -> str: -386 # Default to table if kind is unknown -387 kind_value = expression.args.get("kind") or "TABLE" -388 kind = f" {kind_value}" if kind_value else "" -389 this = f" {self.sql(expression, 'this')}" -390 return f"DESCRIBE{kind}{this}" -391 -392 def generatedasidentitycolumnconstraint_sql( -393 self, expression: exp.GeneratedAsIdentityColumnConstraint -394 ) -> str: -395 start = expression.args.get("start") -396 start = f" START {start}" if start else "" -397 increment = expression.args.get("increment") -398 increment = f" INCREMENT {increment}" if increment else "" -399 return f"AUTOINCREMENT{start}{increment}" +322 PROPERTIES_LOCATION = { +323 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +324 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, +325 } +326 +327 def except_op(self, expression): +328 if not expression.args.get("distinct", False): +329 self.unsupported("EXCEPT with All is not supported in Snowflake") +330 return super().except_op(expression) +331 +332 def intersect_op(self, expression): +333 if not expression.args.get("distinct", False): +334 self.unsupported("INTERSECT with All is not supported in Snowflake") +335 return super().intersect_op(expression) +336 +337 def values_sql(self, expression: exp.Values) -> str: +338 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. +339 +340 We also want to make sure that after we find matches where we need to unquote a column that we prevent users +341 from adding quotes to the column by using the `identify` argument when generating the SQL. +342 """ +343 alias = expression.args.get("alias") +344 if alias and alias.args.get("columns"): +345 expression = expression.transform( +346 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +347 if isinstance(node, exp.Identifier) +348 and isinstance(node.parent, exp.TableAlias) +349 and node.arg_key == "columns" +350 else node, +351 ) +352 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) +353 return super().values_sql(expression) +354 +355 def settag_sql(self, expression: exp.SetTag) -> str: +356 action = "UNSET" if expression.args.get("unset") else "SET" +357 return f"{action} TAG {self.expressions(expression)}" +358 +359 def select_sql(self, expression: exp.Select) -> str: +360 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also +361 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need +362 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when +363 generating the SQL. +364 +365 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the +366 expression. This might not be true in a case where the same column name can be sourced from another table that can +367 properly quote but should be true in most cases. +368 """ +369 values_identifiers = set( +370 flatten( +371 (v.args.get("alias") or exp.Alias()).args.get("columns", []) +372 for v in expression.find_all(exp.Values) +373 ) +374 ) +375 if values_identifiers: +376 expression = expression.transform( +377 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +378 if isinstance(node, exp.Identifier) and node in values_identifiers +379 else node, +380 ) +381 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) +382 return super().select_sql(expression) +383 +384 def describe_sql(self, expression: exp.Describe) -> str: +385 # Default to table if kind is unknown +386 kind_value = expression.args.get("kind") or "TABLE" +387 kind = f" {kind_value}" if kind_value else "" +388 this = f" {self.sql(expression, 'this')}" +389 return f"DESCRIBE{kind}{this}" +390 +391 def generatedasidentitycolumnconstraint_sql( +392 self, expression: exp.GeneratedAsIdentityColumnConstraint +393 ) -> str: +394 start = expression.args.get("start") +395 start = f" START {start}" if start else "" +396 increment = expression.args.get("increment") +397 increment = f" INCREMENT {increment}" if increment else "" +398 return f"AUTOINCREMENT{start}{increment}"
  • @@ -558,224 +551,223 @@ 180 "ARRAYAGG": exp.ArrayAgg.from_arg_list, 181 "ARRAY_CONSTRUCT": exp.Array.from_arg_list, 182 "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list, -183 "DATE_TRUNC": date_trunc_to_time, -184 "DATEADD": lambda args: exp.DateAdd( -185 this=seq_get(args, 2), -186 expression=seq_get(args, 1), -187 unit=seq_get(args, 0), -188 ), -189 "DATEDIFF": lambda args: exp.DateDiff( -190 this=seq_get(args, 2), -191 expression=seq_get(args, 1), -192 unit=seq_get(args, 0), -193 ), -194 "DECODE": exp.Matches.from_arg_list, -195 "DIV0": _div0_to_if, -196 "IFF": exp.If.from_arg_list, -197 "NULLIFZERO": _nullifzero_to_if, -198 "OBJECT_CONSTRUCT": parser.parse_var_map, -199 "RLIKE": exp.RegexpLike.from_arg_list, -200 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), -201 "TO_ARRAY": exp.Array.from_arg_list, -202 "TO_VARCHAR": exp.ToChar.from_arg_list, -203 "TO_TIMESTAMP": _snowflake_to_timestamp, -204 "ZEROIFNULL": _zeroifnull_to_if, -205 } -206 -207 FUNCTION_PARSERS = { -208 **parser.Parser.FUNCTION_PARSERS, -209 "DATE_PART": _parse_date_part, -210 } -211 FUNCTION_PARSERS.pop("TRIM") -212 -213 FUNC_TOKENS = { -214 *parser.Parser.FUNC_TOKENS, -215 TokenType.RLIKE, -216 TokenType.TABLE, -217 } -218 -219 COLUMN_OPERATORS = { -220 **parser.Parser.COLUMN_OPERATORS, # type: ignore -221 TokenType.COLON: lambda self, this, path: self.expression( -222 exp.Bracket, -223 this=this, -224 expressions=[path], -225 ), -226 } -227 -228 RANGE_PARSERS = { -229 **parser.Parser.RANGE_PARSERS, # type: ignore -230 TokenType.LIKE_ANY: binary_range_parser(exp.LikeAny), -231 TokenType.ILIKE_ANY: binary_range_parser(exp.ILikeAny), -232 } -233 -234 ALTER_PARSERS = { -235 **parser.Parser.ALTER_PARSERS, # type: ignore -236 "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True), -237 "SET": lambda self: self._parse_alter_table_set_tag(), -238 } -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 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.DateDiff: lambda self, e: self.func( -281 "DATEDIFF", e.text("unit"), e.expression, e.this -282 ), -283 exp.DateStrToDate: datestrtodate_sql, -284 exp.DataType: _datatype_sql, -285 exp.If: rename_func("IFF"), -286 exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), -287 exp.LogicalOr: rename_func("BOOLOR_AGG"), -288 exp.LogicalAnd: rename_func("BOOLAND_AGG"), -289 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), -290 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -291 exp.Matches: rename_func("DECODE"), -292 exp.StrPosition: lambda self, e: self.func( -293 "POSITION", e.args.get("substr"), e.this, e.args.get("position") -294 ), -295 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -296 exp.TimestampTrunc: timestamptrunc_sql, -297 exp.TimeStrToTime: timestrtotime_sql, -298 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", -299 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), -300 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -301 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), -302 exp.UnixToTime: _unix_to_time_sql, -303 exp.DayOfWeek: rename_func("DAYOFWEEK"), -304 exp.Max: max_or_greatest, -305 exp.Min: min_or_least, -306 } -307 -308 TYPE_MAPPING = { -309 **generator.Generator.TYPE_MAPPING, # type: ignore -310 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", +183 "CONVERT_TIMEZONE": lambda args: exp.AtTimeZone( +184 this=seq_get(args, 1), +185 zone=seq_get(args, 0), +186 ), +187 "DATE_TRUNC": date_trunc_to_time, +188 "DATEADD": lambda args: exp.DateAdd( +189 this=seq_get(args, 2), +190 expression=seq_get(args, 1), +191 unit=seq_get(args, 0), +192 ), +193 "DATEDIFF": lambda args: exp.DateDiff( +194 this=seq_get(args, 2), +195 expression=seq_get(args, 1), +196 unit=seq_get(args, 0), +197 ), +198 "DIV0": _div0_to_if, +199 "IFF": exp.If.from_arg_list, +200 "NULLIFZERO": _nullifzero_to_if, +201 "OBJECT_CONSTRUCT": parser.parse_var_map, +202 "RLIKE": exp.RegexpLike.from_arg_list, +203 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), +204 "TO_ARRAY": exp.Array.from_arg_list, +205 "TO_VARCHAR": exp.ToChar.from_arg_list, +206 "TO_TIMESTAMP": _snowflake_to_timestamp, +207 "ZEROIFNULL": _zeroifnull_to_if, +208 } +209 +210 FUNCTION_PARSERS = { +211 **parser.Parser.FUNCTION_PARSERS, +212 "DATE_PART": _parse_date_part, +213 } +214 FUNCTION_PARSERS.pop("TRIM") +215 +216 FUNC_TOKENS = { +217 *parser.Parser.FUNC_TOKENS, +218 TokenType.RLIKE, +219 TokenType.TABLE, +220 } +221 +222 COLUMN_OPERATORS = { +223 **parser.Parser.COLUMN_OPERATORS, # type: ignore +224 TokenType.COLON: lambda self, this, path: self.expression( +225 exp.Bracket, +226 this=this, +227 expressions=[path], +228 ), +229 } +230 +231 RANGE_PARSERS = { +232 **parser.Parser.RANGE_PARSERS, # type: ignore +233 TokenType.LIKE_ANY: binary_range_parser(exp.LikeAny), +234 TokenType.ILIKE_ANY: binary_range_parser(exp.ILikeAny), +235 } +236 +237 ALTER_PARSERS = { +238 **parser.Parser.ALTER_PARSERS, # type: ignore +239 "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True), +240 "SET": lambda self: self._parse_alter_table_set_tag(), +241 } +242 +243 def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression: +244 self._match_text_seq("TAG") +245 parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction) +246 return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset) +247 +248 class Tokenizer(tokens.Tokenizer): +249 QUOTES = ["'", "$$"] +250 STRING_ESCAPES = ["\\", "'"] +251 +252 KEYWORDS = { +253 **tokens.Tokenizer.KEYWORDS, +254 "EXCLUDE": TokenType.EXCEPT, +255 "ILIKE ANY": TokenType.ILIKE_ANY, +256 "LIKE ANY": TokenType.LIKE_ANY, +257 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, +258 "PUT": TokenType.COMMAND, +259 "RENAME": TokenType.REPLACE, +260 "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ, +261 "TIMESTAMP_NTZ": TokenType.TIMESTAMP, +262 "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ, +263 "TIMESTAMPNTZ": TokenType.TIMESTAMP, +264 "MINUS": TokenType.EXCEPT, +265 "SAMPLE": TokenType.TABLE_SAMPLE, +266 } +267 +268 SINGLE_TOKENS = { +269 **tokens.Tokenizer.SINGLE_TOKENS, +270 "$": TokenType.PARAMETER, +271 } +272 +273 class Generator(generator.Generator): +274 PARAMETER_TOKEN = "$" +275 MATCHED_BY_SOURCE = False +276 +277 TRANSFORMS = { +278 **generator.Generator.TRANSFORMS, # type: ignore +279 exp.Array: inline_array_sql, +280 exp.ArrayConcat: rename_func("ARRAY_CAT"), +281 exp.ArrayJoin: rename_func("ARRAY_TO_STRING"), +282 exp.AtTimeZone: lambda self, e: self.func( +283 "CONVERT_TIMEZONE", e.args.get("zone"), e.this +284 ), +285 exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this), +286 exp.DateDiff: lambda self, e: self.func( +287 "DATEDIFF", e.text("unit"), e.expression, e.this +288 ), +289 exp.DateStrToDate: datestrtodate_sql, +290 exp.DataType: _datatype_sql, +291 exp.If: rename_func("IFF"), +292 exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +293 exp.LogicalOr: rename_func("BOOLOR_AGG"), +294 exp.LogicalAnd: rename_func("BOOLAND_AGG"), +295 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +296 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", +297 exp.StrPosition: lambda self, e: self.func( +298 "POSITION", e.args.get("substr"), e.this, e.args.get("position") +299 ), +300 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +301 exp.TimestampTrunc: timestamptrunc_sql, +302 exp.TimeStrToTime: timestrtotime_sql, +303 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", +304 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), +305 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +306 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), +307 exp.UnixToTime: _unix_to_time_sql, +308 exp.DayOfWeek: rename_func("DAYOFWEEK"), +309 exp.Max: max_or_greatest, +310 exp.Min: min_or_least, 311 } 312 -313 STAR_MAPPING = { -314 "except": "EXCLUDE", -315 "replace": "RENAME", +313 TYPE_MAPPING = { +314 **generator.Generator.TYPE_MAPPING, # type: ignore +315 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", 316 } 317 -318 PROPERTIES_LOCATION = { -319 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -320 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, +318 STAR_MAPPING = { +319 "except": "EXCLUDE", +320 "replace": "RENAME", 321 } 322 -323 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: -324 return self.binary(expression, "ILIKE ANY") -325 -326 def likeany_sql(self, expression: exp.LikeAny) -> str: -327 return self.binary(expression, "LIKE ANY") -328 -329 def except_op(self, expression): -330 if not expression.args.get("distinct", False): -331 self.unsupported("EXCEPT with All is not supported in Snowflake") -332 return super().except_op(expression) -333 -334 def intersect_op(self, expression): -335 if not expression.args.get("distinct", False): -336 self.unsupported("INTERSECT with All is not supported in Snowflake") -337 return super().intersect_op(expression) -338 -339 def values_sql(self, expression: exp.Values) -> str: -340 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. -341 -342 We also want to make sure that after we find matches where we need to unquote a column that we prevent users -343 from adding quotes to the column by using the `identify` argument when generating the SQL. -344 """ -345 alias = expression.args.get("alias") -346 if alias and alias.args.get("columns"): -347 expression = expression.transform( -348 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -349 if isinstance(node, exp.Identifier) -350 and isinstance(node.parent, exp.TableAlias) -351 and node.arg_key == "columns" -352 else node, -353 ) -354 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) -355 return super().values_sql(expression) -356 -357 def settag_sql(self, expression: exp.SetTag) -> str: -358 action = "UNSET" if expression.args.get("unset") else "SET" -359 return f"{action} TAG {self.expressions(expression)}" -360 -361 def select_sql(self, expression: exp.Select) -> str: -362 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also -363 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need -364 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when -365 generating the SQL. -366 -367 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the -368 expression. This might not be true in a case where the same column name can be sourced from another table that can -369 properly quote but should be true in most cases. -370 """ -371 values_identifiers = set( -372 flatten( -373 (v.args.get("alias") or exp.Alias()).args.get("columns", []) -374 for v in expression.find_all(exp.Values) -375 ) -376 ) -377 if values_identifiers: -378 expression = expression.transform( -379 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -380 if isinstance(node, exp.Identifier) and node in values_identifiers -381 else node, -382 ) -383 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) -384 return super().select_sql(expression) -385 -386 def describe_sql(self, expression: exp.Describe) -> str: -387 # Default to table if kind is unknown -388 kind_value = expression.args.get("kind") or "TABLE" -389 kind = f" {kind_value}" if kind_value else "" -390 this = f" {self.sql(expression, 'this')}" -391 return f"DESCRIBE{kind}{this}" -392 -393 def generatedasidentitycolumnconstraint_sql( -394 self, expression: exp.GeneratedAsIdentityColumnConstraint -395 ) -> str: -396 start = expression.args.get("start") -397 start = f" START {start}" if start else "" -398 increment = expression.args.get("increment") -399 increment = f" INCREMENT {increment}" if increment else "" -400 return f"AUTOINCREMENT{start}{increment}" +323 PROPERTIES_LOCATION = { +324 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +325 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, +326 } +327 +328 def except_op(self, expression): +329 if not expression.args.get("distinct", False): +330 self.unsupported("EXCEPT with All is not supported in Snowflake") +331 return super().except_op(expression) +332 +333 def intersect_op(self, expression): +334 if not expression.args.get("distinct", False): +335 self.unsupported("INTERSECT with All is not supported in Snowflake") +336 return super().intersect_op(expression) +337 +338 def values_sql(self, expression: exp.Values) -> str: +339 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. +340 +341 We also want to make sure that after we find matches where we need to unquote a column that we prevent users +342 from adding quotes to the column by using the `identify` argument when generating the SQL. +343 """ +344 alias = expression.args.get("alias") +345 if alias and alias.args.get("columns"): +346 expression = expression.transform( +347 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +348 if isinstance(node, exp.Identifier) +349 and isinstance(node.parent, exp.TableAlias) +350 and node.arg_key == "columns" +351 else node, +352 ) +353 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) +354 return super().values_sql(expression) +355 +356 def settag_sql(self, expression: exp.SetTag) -> str: +357 action = "UNSET" if expression.args.get("unset") else "SET" +358 return f"{action} TAG {self.expressions(expression)}" +359 +360 def select_sql(self, expression: exp.Select) -> str: +361 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also +362 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need +363 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when +364 generating the SQL. +365 +366 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the +367 expression. This might not be true in a case where the same column name can be sourced from another table that can +368 properly quote but should be true in most cases. +369 """ +370 values_identifiers = set( +371 flatten( +372 (v.args.get("alias") or exp.Alias()).args.get("columns", []) +373 for v in expression.find_all(exp.Values) +374 ) +375 ) +376 if values_identifiers: +377 expression = expression.transform( +378 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +379 if isinstance(node, exp.Identifier) and node in values_identifiers +380 else node, +381 ) +382 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) +383 return super().select_sql(expression) +384 +385 def describe_sql(self, expression: exp.Describe) -> str: +386 # Default to table if kind is unknown +387 kind_value = expression.args.get("kind") or "TABLE" +388 kind = f" {kind_value}" if kind_value else "" +389 this = f" {self.sql(expression, 'this')}" +390 return f"DESCRIBE{kind}{this}" +391 +392 def generatedasidentitycolumnconstraint_sql( +393 self, expression: exp.GeneratedAsIdentityColumnConstraint +394 ) -> str: +395 start = expression.args.get("start") +396 start = f" START {start}" if start else "" +397 increment = expression.args.get("increment") +398 increment = f" INCREMENT {increment}" if increment else "" +399 return f"AUTOINCREMENT{start}{increment}" @@ -816,67 +808,70 @@ 180 "ARRAYAGG": exp.ArrayAgg.from_arg_list, 181 "ARRAY_CONSTRUCT": exp.Array.from_arg_list, 182 "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list, -183 "DATE_TRUNC": date_trunc_to_time, -184 "DATEADD": lambda args: exp.DateAdd( -185 this=seq_get(args, 2), -186 expression=seq_get(args, 1), -187 unit=seq_get(args, 0), -188 ), -189 "DATEDIFF": lambda args: exp.DateDiff( -190 this=seq_get(args, 2), -191 expression=seq_get(args, 1), -192 unit=seq_get(args, 0), -193 ), -194 "DECODE": exp.Matches.from_arg_list, -195 "DIV0": _div0_to_if, -196 "IFF": exp.If.from_arg_list, -197 "NULLIFZERO": _nullifzero_to_if, -198 "OBJECT_CONSTRUCT": parser.parse_var_map, -199 "RLIKE": exp.RegexpLike.from_arg_list, -200 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), -201 "TO_ARRAY": exp.Array.from_arg_list, -202 "TO_VARCHAR": exp.ToChar.from_arg_list, -203 "TO_TIMESTAMP": _snowflake_to_timestamp, -204 "ZEROIFNULL": _zeroifnull_to_if, -205 } -206 -207 FUNCTION_PARSERS = { -208 **parser.Parser.FUNCTION_PARSERS, -209 "DATE_PART": _parse_date_part, -210 } -211 FUNCTION_PARSERS.pop("TRIM") -212 -213 FUNC_TOKENS = { -214 *parser.Parser.FUNC_TOKENS, -215 TokenType.RLIKE, -216 TokenType.TABLE, -217 } -218 -219 COLUMN_OPERATORS = { -220 **parser.Parser.COLUMN_OPERATORS, # type: ignore -221 TokenType.COLON: lambda self, this, path: self.expression( -222 exp.Bracket, -223 this=this, -224 expressions=[path], -225 ), -226 } -227 -228 RANGE_PARSERS = { -229 **parser.Parser.RANGE_PARSERS, # type: ignore -230 TokenType.LIKE_ANY: binary_range_parser(exp.LikeAny), -231 TokenType.ILIKE_ANY: binary_range_parser(exp.ILikeAny), -232 } -233 -234 ALTER_PARSERS = { -235 **parser.Parser.ALTER_PARSERS, # type: ignore -236 "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True), -237 "SET": lambda self: self._parse_alter_table_set_tag(), -238 } -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) +183 "CONVERT_TIMEZONE": lambda args: exp.AtTimeZone( +184 this=seq_get(args, 1), +185 zone=seq_get(args, 0), +186 ), +187 "DATE_TRUNC": date_trunc_to_time, +188 "DATEADD": lambda args: exp.DateAdd( +189 this=seq_get(args, 2), +190 expression=seq_get(args, 1), +191 unit=seq_get(args, 0), +192 ), +193 "DATEDIFF": lambda args: exp.DateDiff( +194 this=seq_get(args, 2), +195 expression=seq_get(args, 1), +196 unit=seq_get(args, 0), +197 ), +198 "DIV0": _div0_to_if, +199 "IFF": exp.If.from_arg_list, +200 "NULLIFZERO": _nullifzero_to_if, +201 "OBJECT_CONSTRUCT": parser.parse_var_map, +202 "RLIKE": exp.RegexpLike.from_arg_list, +203 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), +204 "TO_ARRAY": exp.Array.from_arg_list, +205 "TO_VARCHAR": exp.ToChar.from_arg_list, +206 "TO_TIMESTAMP": _snowflake_to_timestamp, +207 "ZEROIFNULL": _zeroifnull_to_if, +208 } +209 +210 FUNCTION_PARSERS = { +211 **parser.Parser.FUNCTION_PARSERS, +212 "DATE_PART": _parse_date_part, +213 } +214 FUNCTION_PARSERS.pop("TRIM") +215 +216 FUNC_TOKENS = { +217 *parser.Parser.FUNC_TOKENS, +218 TokenType.RLIKE, +219 TokenType.TABLE, +220 } +221 +222 COLUMN_OPERATORS = { +223 **parser.Parser.COLUMN_OPERATORS, # type: ignore +224 TokenType.COLON: lambda self, this, path: self.expression( +225 exp.Bracket, +226 this=this, +227 expressions=[path], +228 ), +229 } +230 +231 RANGE_PARSERS = { +232 **parser.Parser.RANGE_PARSERS, # type: ignore +233 TokenType.LIKE_ANY: binary_range_parser(exp.LikeAny), +234 TokenType.ILIKE_ANY: binary_range_parser(exp.ILikeAny), +235 } +236 +237 ALTER_PARSERS = { +238 **parser.Parser.ALTER_PARSERS, # type: ignore +239 "UNSET": lambda self: self._parse_alter_table_set_tag(unset=True), +240 "SET": lambda self: self._parse_alter_table_set_tag(), +241 } +242 +243 def _parse_alter_table_set_tag(self, unset: bool = False) -> exp.Expression: +244 self._match_text_seq("TAG") +245 parser = t.cast(t.Callable, self._parse_id_var if unset else self._parse_conjunction) +246 return self.expression(exp.SetTag, expressions=self._parse_csv(parser), unset=unset) @@ -933,30 +928,30 @@ Default: "nulls_are_small" -
    245    class Tokenizer(tokens.Tokenizer):
    -246        QUOTES = ["'", "$$"]
    -247        STRING_ESCAPES = ["\\", "'"]
    -248
    -249        KEYWORDS = {
    -250            **tokens.Tokenizer.KEYWORDS,
    -251            "EXCLUDE": TokenType.EXCEPT,
    -252            "ILIKE ANY": TokenType.ILIKE_ANY,
    -253            "LIKE ANY": TokenType.LIKE_ANY,
    -254            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    -255            "PUT": TokenType.COMMAND,
    -256            "RENAME": TokenType.REPLACE,
    -257            "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ,
    -258            "TIMESTAMP_NTZ": TokenType.TIMESTAMP,
    -259            "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ,
    -260            "TIMESTAMPNTZ": TokenType.TIMESTAMP,
    -261            "MINUS": TokenType.EXCEPT,
    -262            "SAMPLE": TokenType.TABLE_SAMPLE,
    -263        }
    -264
    -265        SINGLE_TOKENS = {
    -266            **tokens.Tokenizer.SINGLE_TOKENS,
    -267            "$": TokenType.PARAMETER,
    -268        }
    +            
    248    class Tokenizer(tokens.Tokenizer):
    +249        QUOTES = ["'", "$$"]
    +250        STRING_ESCAPES = ["\\", "'"]
    +251
    +252        KEYWORDS = {
    +253            **tokens.Tokenizer.KEYWORDS,
    +254            "EXCLUDE": TokenType.EXCEPT,
    +255            "ILIKE ANY": TokenType.ILIKE_ANY,
    +256            "LIKE ANY": TokenType.LIKE_ANY,
    +257            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    +258            "PUT": TokenType.COMMAND,
    +259            "RENAME": TokenType.REPLACE,
    +260            "TIMESTAMP_LTZ": TokenType.TIMESTAMPLTZ,
    +261            "TIMESTAMP_NTZ": TokenType.TIMESTAMP,
    +262            "TIMESTAMP_TZ": TokenType.TIMESTAMPTZ,
    +263            "TIMESTAMPNTZ": TokenType.TIMESTAMP,
    +264            "MINUS": TokenType.EXCEPT,
    +265            "SAMPLE": TokenType.TABLE_SAMPLE,
    +266        }
    +267
    +268        SINGLE_TOKENS = {
    +269            **tokens.Tokenizer.SINGLE_TOKENS,
    +270            "$": TokenType.PARAMETER,
    +271        }
     
    @@ -984,137 +979,133 @@ Default: "nulls_are_small"
    -
    270    class Generator(generator.Generator):
    -271        PARAMETER_TOKEN = "$"
    -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.DateDiff: lambda self, e: self.func(
    -281                "DATEDIFF", e.text("unit"), e.expression, e.this
    -282            ),
    -283            exp.DateStrToDate: datestrtodate_sql,
    -284            exp.DataType: _datatype_sql,
    -285            exp.If: rename_func("IFF"),
    -286            exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    -287            exp.LogicalOr: rename_func("BOOLOR_AGG"),
    -288            exp.LogicalAnd: rename_func("BOOLAND_AGG"),
    -289            exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    -290            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    -291            exp.Matches: rename_func("DECODE"),
    -292            exp.StrPosition: lambda self, e: self.func(
    -293                "POSITION", e.args.get("substr"), e.this, e.args.get("position")
    -294            ),
    -295            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -296            exp.TimestampTrunc: timestamptrunc_sql,
    -297            exp.TimeStrToTime: timestrtotime_sql,
    -298            exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})",
    -299            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
    -300            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    -301            exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"),
    -302            exp.UnixToTime: _unix_to_time_sql,
    -303            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -304            exp.Max: max_or_greatest,
    -305            exp.Min: min_or_least,
    -306        }
    -307
    -308        TYPE_MAPPING = {
    -309            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -310            exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ",
    +            
    273    class Generator(generator.Generator):
    +274        PARAMETER_TOKEN = "$"
    +275        MATCHED_BY_SOURCE = False
    +276
    +277        TRANSFORMS = {
    +278            **generator.Generator.TRANSFORMS,  # type: ignore
    +279            exp.Array: inline_array_sql,
    +280            exp.ArrayConcat: rename_func("ARRAY_CAT"),
    +281            exp.ArrayJoin: rename_func("ARRAY_TO_STRING"),
    +282            exp.AtTimeZone: lambda self, e: self.func(
    +283                "CONVERT_TIMEZONE", e.args.get("zone"), e.this
    +284            ),
    +285            exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this),
    +286            exp.DateDiff: lambda self, e: self.func(
    +287                "DATEDIFF", e.text("unit"), e.expression, e.this
    +288            ),
    +289            exp.DateStrToDate: datestrtodate_sql,
    +290            exp.DataType: _datatype_sql,
    +291            exp.If: rename_func("IFF"),
    +292            exp.Map: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    +293            exp.LogicalOr: rename_func("BOOLOR_AGG"),
    +294            exp.LogicalAnd: rename_func("BOOLAND_AGG"),
    +295            exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"),
    +296            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    +297            exp.StrPosition: lambda self, e: self.func(
    +298                "POSITION", e.args.get("substr"), e.this, e.args.get("position")
    +299            ),
    +300            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    +301            exp.TimestampTrunc: timestamptrunc_sql,
    +302            exp.TimeStrToTime: timestrtotime_sql,
    +303            exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})",
    +304            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
    +305            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    +306            exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"),
    +307            exp.UnixToTime: _unix_to_time_sql,
    +308            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    +309            exp.Max: max_or_greatest,
    +310            exp.Min: min_or_least,
     311        }
     312
    -313        STAR_MAPPING = {
    -314            "except": "EXCLUDE",
    -315            "replace": "RENAME",
    +313        TYPE_MAPPING = {
    +314            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +315            exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ",
     316        }
     317
    -318        PROPERTIES_LOCATION = {
    -319            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -320            exp.SetProperty: exp.Properties.Location.UNSUPPORTED,
    +318        STAR_MAPPING = {
    +319            "except": "EXCLUDE",
    +320            "replace": "RENAME",
     321        }
     322
    -323        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    -324            return self.binary(expression, "ILIKE ANY")
    -325
    -326        def likeany_sql(self, expression: exp.LikeAny) -> str:
    -327            return self.binary(expression, "LIKE ANY")
    -328
    -329        def except_op(self, expression):
    -330            if not expression.args.get("distinct", False):
    -331                self.unsupported("EXCEPT with All is not supported in Snowflake")
    -332            return super().except_op(expression)
    -333
    -334        def intersect_op(self, expression):
    -335            if not expression.args.get("distinct", False):
    -336                self.unsupported("INTERSECT with All is not supported in Snowflake")
    -337            return super().intersect_op(expression)
    -338
    -339        def values_sql(self, expression: exp.Values) -> str:
    -340            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    -341
    -342            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    -343            from adding quotes to the column by using the `identify` argument when generating the SQL.
    -344            """
    -345            alias = expression.args.get("alias")
    -346            if alias and alias.args.get("columns"):
    -347                expression = expression.transform(
    -348                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -349                    if isinstance(node, exp.Identifier)
    -350                    and isinstance(node.parent, exp.TableAlias)
    -351                    and node.arg_key == "columns"
    -352                    else node,
    -353                )
    -354                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    -355            return super().values_sql(expression)
    -356
    -357        def settag_sql(self, expression: exp.SetTag) -> str:
    -358            action = "UNSET" if expression.args.get("unset") else "SET"
    -359            return f"{action} TAG {self.expressions(expression)}"
    -360
    -361        def select_sql(self, expression: exp.Select) -> str:
    -362            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    -363            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    -364            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    -365            generating the SQL.
    -366
    -367            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    -368            expression. This might not be true in a case where the same column name can be sourced from another table that can
    -369            properly quote but should be true in most cases.
    -370            """
    -371            values_identifiers = set(
    -372                flatten(
    -373                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
    -374                    for v in expression.find_all(exp.Values)
    -375                )
    -376            )
    -377            if values_identifiers:
    -378                expression = expression.transform(
    -379                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -380                    if isinstance(node, exp.Identifier) and node in values_identifiers
    -381                    else node,
    -382                )
    -383                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    -384            return super().select_sql(expression)
    -385
    -386        def describe_sql(self, expression: exp.Describe) -> str:
    -387            # Default to table if kind is unknown
    -388            kind_value = expression.args.get("kind") or "TABLE"
    -389            kind = f" {kind_value}" if kind_value else ""
    -390            this = f" {self.sql(expression, 'this')}"
    -391            return f"DESCRIBE{kind}{this}"
    -392
    -393        def generatedasidentitycolumnconstraint_sql(
    -394            self, expression: exp.GeneratedAsIdentityColumnConstraint
    -395        ) -> str:
    -396            start = expression.args.get("start")
    -397            start = f" START {start}" if start else ""
    -398            increment = expression.args.get("increment")
    -399            increment = f" INCREMENT {increment}" if increment else ""
    -400            return f"AUTOINCREMENT{start}{increment}"
    +323        PROPERTIES_LOCATION = {
    +324            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +325            exp.SetProperty: exp.Properties.Location.UNSUPPORTED,
    +326        }
    +327
    +328        def except_op(self, expression):
    +329            if not expression.args.get("distinct", False):
    +330                self.unsupported("EXCEPT with All is not supported in Snowflake")
    +331            return super().except_op(expression)
    +332
    +333        def intersect_op(self, expression):
    +334            if not expression.args.get("distinct", False):
    +335                self.unsupported("INTERSECT with All is not supported in Snowflake")
    +336            return super().intersect_op(expression)
    +337
    +338        def values_sql(self, expression: exp.Values) -> str:
    +339            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    +340
    +341            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    +342            from adding quotes to the column by using the `identify` argument when generating the SQL.
    +343            """
    +344            alias = expression.args.get("alias")
    +345            if alias and alias.args.get("columns"):
    +346                expression = expression.transform(
    +347                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +348                    if isinstance(node, exp.Identifier)
    +349                    and isinstance(node.parent, exp.TableAlias)
    +350                    and node.arg_key == "columns"
    +351                    else node,
    +352                )
    +353                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    +354            return super().values_sql(expression)
    +355
    +356        def settag_sql(self, expression: exp.SetTag) -> str:
    +357            action = "UNSET" if expression.args.get("unset") else "SET"
    +358            return f"{action} TAG {self.expressions(expression)}"
    +359
    +360        def select_sql(self, expression: exp.Select) -> str:
    +361            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    +362            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    +363            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    +364            generating the SQL.
    +365
    +366            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    +367            expression. This might not be true in a case where the same column name can be sourced from another table that can
    +368            properly quote but should be true in most cases.
    +369            """
    +370            values_identifiers = set(
    +371                flatten(
    +372                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
    +373                    for v in expression.find_all(exp.Values)
    +374                )
    +375            )
    +376            if values_identifiers:
    +377                expression = expression.transform(
    +378                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +379                    if isinstance(node, exp.Identifier) and node in values_identifiers
    +380                    else node,
    +381                )
    +382                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    +383            return super().select_sql(expression)
    +384
    +385        def describe_sql(self, expression: exp.Describe) -> str:
    +386            # Default to table if kind is unknown
    +387            kind_value = expression.args.get("kind") or "TABLE"
    +388            kind = f" {kind_value}" if kind_value else ""
    +389            this = f" {self.sql(expression, 'this')}"
    +390            return f"DESCRIBE{kind}{this}"
    +391
    +392        def generatedasidentitycolumnconstraint_sql(
    +393            self, expression: exp.GeneratedAsIdentityColumnConstraint
    +394        ) -> str:
    +395            start = expression.args.get("start")
    +396            start = f" START {start}" if start else ""
    +397            increment = expression.args.get("increment")
    +398            increment = f" INCREMENT {increment}" if increment else ""
    +399            return f"AUTOINCREMENT{start}{increment}"
     
    @@ -1162,44 +1153,6 @@ Default: True
    -
    - -
    - - def - ilikeany_sql(self, expression: sqlglot.expressions.ILikeAny) -> str: - - - -
    - -
    323        def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    -324            return self.binary(expression, "ILIKE ANY")
    -
    - - - - -
    -
    - -
    - - def - likeany_sql(self, expression: sqlglot.expressions.LikeAny) -> str: - - - -
    - -
    326        def likeany_sql(self, expression: exp.LikeAny) -> str:
    -327            return self.binary(expression, "LIKE ANY")
    -
    - - - - -
    @@ -1211,10 +1164,10 @@ Default: True
    -
    329        def except_op(self, expression):
    -330            if not expression.args.get("distinct", False):
    -331                self.unsupported("EXCEPT with All is not supported in Snowflake")
    -332            return super().except_op(expression)
    +            
    328        def except_op(self, expression):
    +329            if not expression.args.get("distinct", False):
    +330                self.unsupported("EXCEPT with All is not supported in Snowflake")
    +331            return super().except_op(expression)
     
    @@ -1232,10 +1185,10 @@ Default: True
    -
    334        def intersect_op(self, expression):
    -335            if not expression.args.get("distinct", False):
    -336                self.unsupported("INTERSECT with All is not supported in Snowflake")
    -337            return super().intersect_op(expression)
    +            
    333        def intersect_op(self, expression):
    +334            if not expression.args.get("distinct", False):
    +335                self.unsupported("INTERSECT with All is not supported in Snowflake")
    +336            return super().intersect_op(expression)
     
    @@ -1253,23 +1206,23 @@ Default: True
    -
    339        def values_sql(self, expression: exp.Values) -> str:
    -340            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    -341
    -342            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    -343            from adding quotes to the column by using the `identify` argument when generating the SQL.
    -344            """
    -345            alias = expression.args.get("alias")
    -346            if alias and alias.args.get("columns"):
    -347                expression = expression.transform(
    -348                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -349                    if isinstance(node, exp.Identifier)
    -350                    and isinstance(node.parent, exp.TableAlias)
    -351                    and node.arg_key == "columns"
    -352                    else node,
    -353                )
    -354                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    -355            return super().values_sql(expression)
    +            
    338        def values_sql(self, expression: exp.Values) -> str:
    +339            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    +340
    +341            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    +342            from adding quotes to the column by using the `identify` argument when generating the SQL.
    +343            """
    +344            alias = expression.args.get("alias")
    +345            if alias and alias.args.get("columns"):
    +346                expression = expression.transform(
    +347                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +348                    if isinstance(node, exp.Identifier)
    +349                    and isinstance(node.parent, exp.TableAlias)
    +350                    and node.arg_key == "columns"
    +351                    else node,
    +352                )
    +353                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    +354            return super().values_sql(expression)
     
    @@ -1292,9 +1245,9 @@ from adding quotes to the column by using the identify argument whe
    -
    357        def settag_sql(self, expression: exp.SetTag) -> str:
    -358            action = "UNSET" if expression.args.get("unset") else "SET"
    -359            return f"{action} TAG {self.expressions(expression)}"
    +            
    356        def settag_sql(self, expression: exp.SetTag) -> str:
    +357            action = "UNSET" if expression.args.get("unset") else "SET"
    +358            return f"{action} TAG {self.expressions(expression)}"
     
    @@ -1312,30 +1265,30 @@ from adding quotes to the column by using the identify argument whe
    -
    361        def select_sql(self, expression: exp.Select) -> str:
    -362            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    -363            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    -364            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    -365            generating the SQL.
    -366
    -367            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    -368            expression. This might not be true in a case where the same column name can be sourced from another table that can
    -369            properly quote but should be true in most cases.
    -370            """
    -371            values_identifiers = set(
    -372                flatten(
    -373                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
    -374                    for v in expression.find_all(exp.Values)
    -375                )
    -376            )
    -377            if values_identifiers:
    -378                expression = expression.transform(
    -379                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -380                    if isinstance(node, exp.Identifier) and node in values_identifiers
    -381                    else node,
    -382                )
    -383                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    -384            return super().select_sql(expression)
    +            
    360        def select_sql(self, expression: exp.Select) -> str:
    +361            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    +362            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    +363            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    +364            generating the SQL.
    +365
    +366            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    +367            expression. This might not be true in a case where the same column name can be sourced from another table that can
    +368            properly quote but should be true in most cases.
    +369            """
    +370            values_identifiers = set(
    +371                flatten(
    +372                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
    +373                    for v in expression.find_all(exp.Values)
    +374                )
    +375            )
    +376            if values_identifiers:
    +377                expression = expression.transform(
    +378                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +379                    if isinstance(node, exp.Identifier) and node in values_identifiers
    +380                    else node,
    +381                )
    +382                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    +383            return super().select_sql(expression)
     
    @@ -1362,12 +1315,12 @@ properly quote but should be true in most cases.

    -
    386        def describe_sql(self, expression: exp.Describe) -> str:
    -387            # Default to table if kind is unknown
    -388            kind_value = expression.args.get("kind") or "TABLE"
    -389            kind = f" {kind_value}" if kind_value else ""
    -390            this = f" {self.sql(expression, 'this')}"
    -391            return f"DESCRIBE{kind}{this}"
    +            
    385        def describe_sql(self, expression: exp.Describe) -> str:
    +386            # Default to table if kind is unknown
    +387            kind_value = expression.args.get("kind") or "TABLE"
    +388            kind = f" {kind_value}" if kind_value else ""
    +389            this = f" {self.sql(expression, 'this')}"
    +390            return f"DESCRIBE{kind}{this}"
     
    @@ -1385,14 +1338,14 @@ properly quote but should be true in most cases.

    -
    393        def generatedasidentitycolumnconstraint_sql(
    -394            self, expression: exp.GeneratedAsIdentityColumnConstraint
    -395        ) -> str:
    -396            start = expression.args.get("start")
    -397            start = f" START {start}" if start else ""
    -398            increment = expression.args.get("increment")
    -399            increment = f" INCREMENT {increment}" if increment else ""
    -400            return f"AUTOINCREMENT{start}{increment}"
    +            
    392        def generatedasidentitycolumnconstraint_sql(
    +393            self, expression: exp.GeneratedAsIdentityColumnConstraint
    +394        ) -> str:
    +395            start = expression.args.get("start")
    +396            start = f" START {start}" if start else ""
    +397            increment = expression.args.get("increment")
    +398            increment = f" INCREMENT {increment}" if increment else ""
    +399            return f"AUTOINCREMENT{start}{increment}"
     
    @@ -1419,6 +1372,7 @@ properly quote but should be true in most cases.

    cache_sql
    characterset_sql
    column_sql
    +
    columnposition_sql
    columndef_sql
    columnconstraint_sql
    autoincrementcolumnconstraint_sql
    @@ -1530,6 +1484,7 @@ properly quote but should be true in most cases.

    primarykey_sql
    unique_sql
    if_sql
    +
    matchagainst_sql
    jsonkeyvalue_sql
    jsonobject_sql
    in_sql
    @@ -1581,8 +1536,10 @@ properly quote but should be true in most cases.

    gt_sql
    gte_sql
    ilike_sql
    +
    ilikeany_sql
    is_sql
    like_sql
    +
    likeany_sql
    similarto_sql
    lt_sql
    lte_sql
    diff --git a/docs/sqlglot/dialects/spark.html b/docs/sqlglot/dialects/spark.html index 3107173..0633e78 100644 --- a/docs/sqlglot/dialects/spark.html +++ b/docs/sqlglot/dialects/spark.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.spark API documentation @@ -731,6 +731,7 @@ Default: True
    cache_sql
    characterset_sql
    column_sql
    +
    columnposition_sql
    columndef_sql
    columnconstraint_sql
    autoincrementcolumnconstraint_sql
    @@ -846,6 +847,7 @@ Default: True
    primarykey_sql
    unique_sql
    if_sql
    +
    matchagainst_sql
    jsonkeyvalue_sql
    jsonobject_sql
    in_sql
    @@ -896,8 +898,10 @@ Default: True
    gt_sql
    gte_sql
    ilike_sql
    +
    ilikeany_sql
    is_sql
    like_sql
    +
    likeany_sql
    similarto_sql
    lt_sql
    lte_sql
    diff --git a/docs/sqlglot/dialects/sqlite.html b/docs/sqlglot/dialects/sqlite.html index a8ac25c..ce7b580 100644 --- a/docs/sqlglot/dialects/sqlite.html +++ b/docs/sqlglot/dialects/sqlite.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.sqlite API documentation @@ -814,6 +814,7 @@ Default: True
    cache_sql
    characterset_sql
    column_sql
    +
    columnposition_sql
    columndef_sql
    columnconstraint_sql
    autoincrementcolumnconstraint_sql
    @@ -931,6 +932,7 @@ Default: True
    primarykey_sql
    unique_sql
    if_sql
    +
    matchagainst_sql
    jsonkeyvalue_sql
    jsonobject_sql
    in_sql
    @@ -980,8 +982,10 @@ Default: True
    gt_sql
    gte_sql
    ilike_sql
    +
    ilikeany_sql
    is_sql
    like_sql
    +
    likeany_sql
    similarto_sql
    lt_sql
    lte_sql
    diff --git a/docs/sqlglot/dialects/starrocks.html b/docs/sqlglot/dialects/starrocks.html index 0cbc4a0..d310083 100644 --- a/docs/sqlglot/dialects/starrocks.html +++ b/docs/sqlglot/dialects/starrocks.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.starrocks API documentation @@ -346,6 +346,7 @@ Default: True
    cache_sql
    characterset_sql
    column_sql
    +
    columnposition_sql
    columndef_sql
    columnconstraint_sql
    autoincrementcolumnconstraint_sql
    @@ -463,6 +464,7 @@ Default: True
    primarykey_sql
    unique_sql
    if_sql
    +
    matchagainst_sql
    jsonkeyvalue_sql
    jsonobject_sql
    in_sql
    @@ -514,8 +516,10 @@ Default: True
    gt_sql
    gte_sql
    ilike_sql
    +
    ilikeany_sql
    is_sql
    like_sql
    +
    likeany_sql
    similarto_sql
    lt_sql
    lte_sql
    diff --git a/docs/sqlglot/dialects/tableau.html b/docs/sqlglot/dialects/tableau.html index 44b7239..56616ee 100644 --- a/docs/sqlglot/dialects/tableau.html +++ b/docs/sqlglot/dialects/tableau.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.tableau API documentation @@ -243,6 +243,7 @@ Default: True
    cache_sql
    characterset_sql
    column_sql
    +
    columnposition_sql
    columndef_sql
    columnconstraint_sql
    autoincrementcolumnconstraint_sql
    @@ -360,6 +361,7 @@ Default: True
    primarykey_sql
    unique_sql
    if_sql
    +
    matchagainst_sql
    jsonkeyvalue_sql
    jsonobject_sql
    in_sql
    @@ -411,8 +413,10 @@ Default: True
    gt_sql
    gte_sql
    ilike_sql
    +
    ilikeany_sql
    is_sql
    like_sql
    +
    likeany_sql
    similarto_sql
    lt_sql
    lte_sql
    diff --git a/docs/sqlglot/dialects/teradata.html b/docs/sqlglot/dialects/teradata.html index d3c3041..2e299c0 100644 --- a/docs/sqlglot/dialects/teradata.html +++ b/docs/sqlglot/dialects/teradata.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.teradata API documentation @@ -870,6 +870,7 @@ Default: True
    cache_sql
    characterset_sql
    column_sql
    +
    columnposition_sql
    columndef_sql
    columnconstraint_sql
    autoincrementcolumnconstraint_sql
    @@ -985,6 +986,7 @@ Default: True
    primarykey_sql
    unique_sql
    if_sql
    +
    matchagainst_sql
    jsonkeyvalue_sql
    jsonobject_sql
    in_sql
    @@ -1036,8 +1038,10 @@ Default: True
    gt_sql
    gte_sql
    ilike_sql
    +
    ilikeany_sql
    is_sql
    like_sql
    +
    likeany_sql
    similarto_sql
    lt_sql
    lte_sql
    diff --git a/docs/sqlglot/dialects/trino.html b/docs/sqlglot/dialects/trino.html index d7a2728..d732461 100644 --- a/docs/sqlglot/dialects/trino.html +++ b/docs/sqlglot/dialects/trino.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.trino API documentation @@ -220,6 +220,7 @@ Default: True
    cache_sql
    characterset_sql
    column_sql
    +
    columnposition_sql
    columndef_sql
    columnconstraint_sql
    autoincrementcolumnconstraint_sql
    @@ -337,6 +338,7 @@ Default: True
    primarykey_sql
    unique_sql
    if_sql
    +
    matchagainst_sql
    jsonkeyvalue_sql
    jsonobject_sql
    in_sql
    @@ -387,8 +389,10 @@ Default: True
    gt_sql
    gte_sql
    ilike_sql
    +
    ilikeany_sql
    is_sql
    like_sql
    +
    likeany_sql
    similarto_sql
    lt_sql
    lte_sql
    diff --git a/docs/sqlglot/dialects/tsql.html b/docs/sqlglot/dialects/tsql.html index 630badb..bd8c032 100644 --- a/docs/sqlglot/dialects/tsql.html +++ b/docs/sqlglot/dialects/tsql.html @@ -3,7 +3,7 @@ - + sqlglot.dialects.tsql API documentation @@ -404,160 +404,163 @@
    313 TokenType.END: lambda self: self._parse_command(), 314 } 315 -316 def _parse_system_time(self) -> t.Optional[exp.Expression]: -317 if not self._match_text_seq("FOR", "SYSTEM_TIME"): -318 return None -319 -320 if self._match_text_seq("AS", "OF"): -321 system_time = self.expression( -322 exp.SystemTime, this=self._parse_bitwise(), kind="AS OF" -323 ) -324 elif self._match_set((TokenType.FROM, TokenType.BETWEEN)): -325 kind = self._prev.text -326 this = self._parse_bitwise() -327 self._match_texts(("TO", "AND")) -328 expression = self._parse_bitwise() -329 system_time = self.expression( -330 exp.SystemTime, this=this, expression=expression, kind=kind -331 ) -332 elif self._match_text_seq("CONTAINED", "IN"): -333 args = self._parse_wrapped_csv(self._parse_bitwise) -334 system_time = self.expression( -335 exp.SystemTime, -336 this=seq_get(args, 0), -337 expression=seq_get(args, 1), -338 kind="CONTAINED IN", -339 ) -340 elif self._match(TokenType.ALL): -341 system_time = self.expression(exp.SystemTime, kind="ALL") -342 else: -343 system_time = None -344 self.raise_error("Unable to parse FOR SYSTEM_TIME clause") -345 -346 return system_time -347 -348 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: -349 table = super()._parse_table_parts(schema=schema) -350 table.set("system_time", self._parse_system_time()) -351 return table -352 -353 def _parse_returns(self) -> exp.Expression: -354 table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS) -355 returns = super()._parse_returns() -356 returns.set("table", table) -357 return returns -358 -359 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: -360 to = self._parse_types() -361 self._match(TokenType.COMMA) -362 this = self._parse_conjunction() -363 -364 if not to or not this: -365 return None +316 LOG_BASE_FIRST = False +317 LOG_DEFAULTS_TO_LN = True +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 # Retrieve length of datatype and override to default if not specified -368 if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES: -369 to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False) -370 -371 # Check whether a conversion with format is applicable -372 if self._match(TokenType.COMMA): -373 format_val = self._parse_number() -374 format_val_name = format_val.name if format_val else "" -375 -376 if format_val_name not in TSQL.convert_format_mapping: -377 raise ValueError( -378 f"CONVERT function at T-SQL does not support format style {format_val_name}" -379 ) -380 -381 format_norm = exp.Literal.string(TSQL.convert_format_mapping[format_val_name]) -382 -383 # Check whether the convert entails a string to date format -384 if to.this == DataType.Type.DATE: -385 return self.expression(exp.StrToDate, this=this, format=format_norm) -386 # Check whether the convert entails a string to datetime format -387 elif to.this == DataType.Type.DATETIME: -388 return self.expression(exp.StrToTime, this=this, format=format_norm) -389 # Check whether the convert entails a date to string format -390 elif to.this in self.VAR_LENGTH_DATATYPES: -391 return self.expression( -392 exp.Cast if strict else exp.TryCast, -393 to=to, -394 this=self.expression(exp.TimeToStr, this=this, format=format_norm), -395 ) -396 elif to.this == DataType.Type.TEXT: -397 return self.expression(exp.TimeToStr, this=this, format=format_norm) -398 -399 # Entails a simple cast without any format requirement -400 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +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 def _parse_user_defined_function( -403 self, kind: t.Optional[TokenType] = None -404 ) -> t.Optional[exp.Expression]: -405 this = super()._parse_user_defined_function(kind=kind) -406 -407 if ( -408 kind == TokenType.FUNCTION -409 or isinstance(this, exp.UserDefinedFunction) -410 or self._match(TokenType.ALIAS, advance=False) -411 ): -412 return this -413 -414 expressions = self._parse_csv(self._parse_function_parameter) -415 return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions) +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 class Generator(generator.Generator): -418 LOCKING_READS_SUPPORTED = True +417 expressions = self._parse_csv(self._parse_function_parameter) +418 return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions) 419 -420 TYPE_MAPPING = { -421 **generator.Generator.TYPE_MAPPING, # type: ignore -422 exp.DataType.Type.INT: "INTEGER", -423 exp.DataType.Type.DECIMAL: "NUMERIC", -424 exp.DataType.Type.DATETIME: "DATETIME2", -425 exp.DataType.Type.VARIANT: "SQL_VARIANT", -426 } -427 -428 TRANSFORMS = { -429 **generator.Generator.TRANSFORMS, # type: ignore -430 exp.DateAdd: generate_date_delta_with_unit_sql, -431 exp.DateDiff: generate_date_delta_with_unit_sql, -432 exp.CurrentDate: rename_func("GETDATE"), -433 exp.CurrentTimestamp: rename_func("GETDATE"), -434 exp.If: rename_func("IIF"), -435 exp.NumberToStr: _format_sql, -436 exp.TimeToStr: _format_sql, -437 exp.GroupConcat: _string_agg_sql, -438 exp.Max: max_or_greatest, -439 exp.Min: min_or_least, -440 } -441 -442 TRANSFORMS.pop(exp.ReturnsProperty) -443 -444 LIMIT_FETCH = "FETCH" -445 -446 def offset_sql(self, expression: exp.Offset) -> str: -447 return f"{super().offset_sql(expression)} ROWS" +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.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.Max: max_or_greatest, +442 exp.Min: min_or_least, +443 } +444 +445 TRANSFORMS.pop(exp.ReturnsProperty) +446 +447 LIMIT_FETCH = "FETCH" 448 -449 def systemtime_sql(self, expression: exp.SystemTime) -> str: -450 kind = expression.args["kind"] -451 if kind == "ALL": -452 return "FOR SYSTEM_TIME ALL" -453 -454 start = self.sql(expression, "this") -455 if kind == "AS OF": -456 return f"FOR SYSTEM_TIME AS OF {start}" -457 -458 end = self.sql(expression, "expression") -459 if kind == "FROM": -460 return f"FOR SYSTEM_TIME FROM {start} TO {end}" -461 if kind == "BETWEEN": -462 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" -463 -464 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" -465 -466 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: -467 table = expression.args.get("table") -468 table = f"{table} " if table else "" -469 return f"RETURNS {table}{self.sql(expression, 'this')}" +449 def offset_sql(self, expression: exp.Offset) -> str: +450 return f"{super().offset_sql(expression)} ROWS" +451 +452 def systemtime_sql(self, expression: exp.SystemTime) -> str: +453 kind = expression.args["kind"] +454 if kind == "ALL": +455 return "FOR SYSTEM_TIME ALL" +456 +457 start = self.sql(expression, "this") +458 if kind == "AS OF": +459 return f"FOR SYSTEM_TIME AS OF {start}" +460 +461 end = self.sql(expression, "expression") +462 if kind == "FROM": +463 return f"FOR SYSTEM_TIME FROM {start} TO {end}" +464 if kind == "BETWEEN": +465 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" +466 +467 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" +468 +469 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: +470 table = expression.args.get("table") +471 table = f"{table} " if table else "" +472 return f"RETURNS {table}{self.sql(expression, 'this')}"
    @@ -776,160 +779,163 @@ 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 +317 LOG_BASE_FIRST = False +318 LOG_DEFAULTS_TO_LN = True +319 +320 def _parse_system_time(self) -> t.Optional[exp.Expression]: +321 if not self._match_text_seq("FOR", "SYSTEM_TIME"): +322 return None +323 +324 if self._match_text_seq("AS", "OF"): +325 system_time = self.expression( +326 exp.SystemTime, this=self._parse_bitwise(), kind="AS OF" +327 ) +328 elif self._match_set((TokenType.FROM, TokenType.BETWEEN)): +329 kind = self._prev.text +330 this = self._parse_bitwise() +331 self._match_texts(("TO", "AND")) +332 expression = self._parse_bitwise() +333 system_time = self.expression( +334 exp.SystemTime, this=this, expression=expression, kind=kind +335 ) +336 elif self._match_text_seq("CONTAINED", "IN"): +337 args = self._parse_wrapped_csv(self._parse_bitwise) +338 system_time = self.expression( +339 exp.SystemTime, +340 this=seq_get(args, 0), +341 expression=seq_get(args, 1), +342 kind="CONTAINED IN", +343 ) +344 elif self._match(TokenType.ALL): +345 system_time = self.expression(exp.SystemTime, kind="ALL") +346 else: +347 system_time = None +348 self.raise_error("Unable to parse FOR SYSTEM_TIME clause") +349 +350 return system_time +351 +352 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: +353 table = super()._parse_table_parts(schema=schema) +354 table.set("system_time", self._parse_system_time()) +355 return table +356 +357 def _parse_returns(self) -> exp.Expression: +358 table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS) +359 returns = super()._parse_returns() +360 returns.set("table", table) +361 return returns +362 +363 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: +364 to = self._parse_types() +365 self._match(TokenType.COMMA) +366 this = self._parse_conjunction() 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) +368 if not to or not this: +369 return None +370 +371 # Retrieve length of datatype and override to default if not specified +372 if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES: +373 to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False) +374 +375 # Check whether a conversion with format is applicable +376 if self._match(TokenType.COMMA): +377 format_val = self._parse_number() +378 format_val_name = format_val.name if format_val else "" +379 +380 if format_val_name not in TSQL.convert_format_mapping: +381 raise ValueError( +382 f"CONVERT function at T-SQL does not support format style {format_val_name}" +383 ) +384 +385 format_norm = exp.Literal.string(TSQL.convert_format_mapping[format_val_name]) +386 +387 # Check whether the convert entails a string to date format +388 if to.this == DataType.Type.DATE: +389 return self.expression(exp.StrToDate, this=this, format=format_norm) +390 # Check whether the convert entails a string to datetime format +391 elif to.this == DataType.Type.DATETIME: +392 return self.expression(exp.StrToTime, this=this, format=format_norm) +393 # Check whether the convert entails a date to string format +394 elif to.this in self.VAR_LENGTH_DATATYPES: +395 return self.expression( +396 exp.Cast if strict else exp.TryCast, +397 to=to, +398 this=self.expression(exp.TimeToStr, this=this, format=format_norm), +399 ) +400 elif to.this == DataType.Type.TEXT: +401 return self.expression(exp.TimeToStr, this=this, format=format_norm) 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) +403 # Entails a simple cast without any format requirement +404 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +405 +406 def _parse_user_defined_function( +407 self, kind: t.Optional[TokenType] = None +408 ) -> t.Optional[exp.Expression]: +409 this = super()._parse_user_defined_function(kind=kind) +410 +411 if ( +412 kind == TokenType.FUNCTION +413 or isinstance(this, exp.UserDefinedFunction) +414 or self._match(TokenType.ALIAS, advance=False) +415 ): +416 return this 417 -418 class Generator(generator.Generator): -419 LOCKING_READS_SUPPORTED = True +418 expressions = self._parse_csv(self._parse_function_parameter) +419 return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions) 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.Max: max_or_greatest, -440 exp.Min: min_or_least, -441 } -442 -443 TRANSFORMS.pop(exp.ReturnsProperty) -444 -445 LIMIT_FETCH = "FETCH" -446 -447 def offset_sql(self, expression: exp.Offset) -> str: -448 return f"{super().offset_sql(expression)} ROWS" +421 class Generator(generator.Generator): +422 LOCKING_READS_SUPPORTED = True +423 +424 TYPE_MAPPING = { +425 **generator.Generator.TYPE_MAPPING, # type: ignore +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.Max: max_or_greatest, +443 exp.Min: min_or_least, +444 } +445 +446 TRANSFORMS.pop(exp.ReturnsProperty) +447 +448 LIMIT_FETCH = "FETCH" 449 -450 def systemtime_sql(self, expression: exp.SystemTime) -> str: -451 kind = expression.args["kind"] -452 if kind == "ALL": -453 return "FOR SYSTEM_TIME ALL" -454 -455 start = self.sql(expression, "this") -456 if kind == "AS OF": -457 return f"FOR SYSTEM_TIME AS OF {start}" -458 -459 end = self.sql(expression, "expression") -460 if kind == "FROM": -461 return f"FOR SYSTEM_TIME FROM {start} TO {end}" -462 if kind == "BETWEEN": -463 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" -464 -465 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" -466 -467 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: -468 table = expression.args.get("table") -469 table = f"{table} " if table else "" -470 return f"RETURNS {table}{self.sql(expression, 'this')}" +450 def offset_sql(self, expression: exp.Offset) -> str: +451 return f"{super().offset_sql(expression)} ROWS" +452 +453 def systemtime_sql(self, expression: exp.SystemTime) -> str: +454 kind = expression.args["kind"] +455 if kind == "ALL": +456 return "FOR SYSTEM_TIME ALL" +457 +458 start = self.sql(expression, "this") +459 if kind == "AS OF": +460 return f"FOR SYSTEM_TIME AS OF {start}" +461 +462 end = self.sql(expression, "expression") +463 if kind == "FROM": +464 return f"FOR SYSTEM_TIME FROM {start} TO {end}" +465 if kind == "BETWEEN": +466 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" +467 +468 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" +469 +470 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: +471 table = expression.args.get("table") +472 table = f"{table} " if table else "" +473 return f"RETURNS {table}{self.sql(expression, 'this')}"
    @@ -1063,106 +1069,109 @@ 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 +317 LOG_BASE_FIRST = False +318 LOG_DEFAULTS_TO_LN = True +319 +320 def _parse_system_time(self) -> t.Optional[exp.Expression]: +321 if not self._match_text_seq("FOR", "SYSTEM_TIME"): +322 return None +323 +324 if self._match_text_seq("AS", "OF"): +325 system_time = self.expression( +326 exp.SystemTime, this=self._parse_bitwise(), kind="AS OF" +327 ) +328 elif self._match_set((TokenType.FROM, TokenType.BETWEEN)): +329 kind = self._prev.text +330 this = self._parse_bitwise() +331 self._match_texts(("TO", "AND")) +332 expression = self._parse_bitwise() +333 system_time = self.expression( +334 exp.SystemTime, this=this, expression=expression, kind=kind +335 ) +336 elif self._match_text_seq("CONTAINED", "IN"): +337 args = self._parse_wrapped_csv(self._parse_bitwise) +338 system_time = self.expression( +339 exp.SystemTime, +340 this=seq_get(args, 0), +341 expression=seq_get(args, 1), +342 kind="CONTAINED IN", +343 ) +344 elif self._match(TokenType.ALL): +345 system_time = self.expression(exp.SystemTime, kind="ALL") +346 else: +347 system_time = None +348 self.raise_error("Unable to parse FOR SYSTEM_TIME clause") +349 +350 return system_time +351 +352 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: +353 table = super()._parse_table_parts(schema=schema) +354 table.set("system_time", self._parse_system_time()) +355 return table +356 +357 def _parse_returns(self) -> exp.Expression: +358 table = self._parse_id_var(any_token=False, tokens=self.RETURNS_TABLE_TOKENS) +359 returns = super()._parse_returns() +360 returns.set("table", table) +361 return returns +362 +363 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: +364 to = self._parse_types() +365 self._match(TokenType.COMMA) +366 this = self._parse_conjunction() 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) +368 if not to or not this: +369 return None +370 +371 # Retrieve length of datatype and override to default if not specified +372 if seq_get(to.expressions, 0) is None and to.this in self.VAR_LENGTH_DATATYPES: +373 to = exp.DataType.build(to.this, expressions=[exp.Literal.number(30)], nested=False) +374 +375 # Check whether a conversion with format is applicable +376 if self._match(TokenType.COMMA): +377 format_val = self._parse_number() +378 format_val_name = format_val.name if format_val else "" +379 +380 if format_val_name not in TSQL.convert_format_mapping: +381 raise ValueError( +382 f"CONVERT function at T-SQL does not support format style {format_val_name}" +383 ) +384 +385 format_norm = exp.Literal.string(TSQL.convert_format_mapping[format_val_name]) +386 +387 # Check whether the convert entails a string to date format +388 if to.this == DataType.Type.DATE: +389 return self.expression(exp.StrToDate, this=this, format=format_norm) +390 # Check whether the convert entails a string to datetime format +391 elif to.this == DataType.Type.DATETIME: +392 return self.expression(exp.StrToTime, this=this, format=format_norm) +393 # Check whether the convert entails a date to string format +394 elif to.this in self.VAR_LENGTH_DATATYPES: +395 return self.expression( +396 exp.Cast if strict else exp.TryCast, +397 to=to, +398 this=self.expression(exp.TimeToStr, this=this, format=format_norm), +399 ) +400 elif to.this == DataType.Type.TEXT: +401 return self.expression(exp.TimeToStr, this=this, format=format_norm) 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) +403 # Entails a simple cast without any format requirement +404 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +405 +406 def _parse_user_defined_function( +407 self, kind: t.Optional[TokenType] = None +408 ) -> t.Optional[exp.Expression]: +409 this = super()._parse_user_defined_function(kind=kind) +410 +411 if ( +412 kind == TokenType.FUNCTION +413 or isinstance(this, exp.UserDefinedFunction) +414 or self._match(TokenType.ALIAS, advance=False) +415 ): +416 return this +417 +418 expressions = self._parse_csv(self._parse_function_parameter) +419 return self.expression(exp.UserDefinedFunction, this=this, expressions=expressions) @@ -1219,59 +1228,59 @@ Default: "nulls_are_small" -
    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.Max: max_or_greatest,
    -440            exp.Min: min_or_least,
    -441        }
    -442
    -443        TRANSFORMS.pop(exp.ReturnsProperty)
    -444
    -445        LIMIT_FETCH = "FETCH"
    -446
    -447        def offset_sql(self, expression: exp.Offset) -> str:
    -448            return f"{super().offset_sql(expression)} ROWS"
    +            
    421    class Generator(generator.Generator):
    +422        LOCKING_READS_SUPPORTED = True
    +423
    +424        TYPE_MAPPING = {
    +425            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +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.Max: max_or_greatest,
    +443            exp.Min: min_or_least,
    +444        }
    +445
    +446        TRANSFORMS.pop(exp.ReturnsProperty)
    +447
    +448        LIMIT_FETCH = "FETCH"
     449
    -450        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    -451            kind = expression.args["kind"]
    -452            if kind == "ALL":
    -453                return "FOR SYSTEM_TIME ALL"
    -454
    -455            start = self.sql(expression, "this")
    -456            if kind == "AS OF":
    -457                return f"FOR SYSTEM_TIME AS OF {start}"
    -458
    -459            end = self.sql(expression, "expression")
    -460            if kind == "FROM":
    -461                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    -462            if kind == "BETWEEN":
    -463                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    -464
    -465            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
    -466
    -467        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    -468            table = expression.args.get("table")
    -469            table = f"{table} " if table else ""
    -470            return f"RETURNS {table}{self.sql(expression, 'this')}"
    +450        def offset_sql(self, expression: exp.Offset) -> str:
    +451            return f"{super().offset_sql(expression)} ROWS"
    +452
    +453        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    +454            kind = expression.args["kind"]
    +455            if kind == "ALL":
    +456                return "FOR SYSTEM_TIME ALL"
    +457
    +458            start = self.sql(expression, "this")
    +459            if kind == "AS OF":
    +460                return f"FOR SYSTEM_TIME AS OF {start}"
    +461
    +462            end = self.sql(expression, "expression")
    +463            if kind == "FROM":
    +464                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    +465            if kind == "BETWEEN":
    +466                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +467
    +468            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
    +469
    +470        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    +471            table = expression.args.get("table")
    +472            table = f"{table} " if table else ""
    +473            return f"RETURNS {table}{self.sql(expression, 'this')}"
     
    @@ -1330,8 +1339,8 @@ Default: True
    -
    447        def offset_sql(self, expression: exp.Offset) -> str:
    -448            return f"{super().offset_sql(expression)} ROWS"
    +            
    450        def offset_sql(self, expression: exp.Offset) -> str:
    +451            return f"{super().offset_sql(expression)} ROWS"
     
    @@ -1349,22 +1358,22 @@ Default: True
    -
    450        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    -451            kind = expression.args["kind"]
    -452            if kind == "ALL":
    -453                return "FOR SYSTEM_TIME ALL"
    -454
    -455            start = self.sql(expression, "this")
    -456            if kind == "AS OF":
    -457                return f"FOR SYSTEM_TIME AS OF {start}"
    -458
    -459            end = self.sql(expression, "expression")
    -460            if kind == "FROM":
    -461                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    -462            if kind == "BETWEEN":
    -463                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    -464
    -465            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
    +            
    453        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    +454            kind = expression.args["kind"]
    +455            if kind == "ALL":
    +456                return "FOR SYSTEM_TIME ALL"
    +457
    +458            start = self.sql(expression, "this")
    +459            if kind == "AS OF":
    +460                return f"FOR SYSTEM_TIME AS OF {start}"
    +461
    +462            end = self.sql(expression, "expression")
    +463            if kind == "FROM":
    +464                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    +465            if kind == "BETWEEN":
    +466                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +467
    +468            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
     
    @@ -1382,10 +1391,10 @@ Default: True
    -
    467        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    -468            table = expression.args.get("table")
    -469            table = f"{table} " if table else ""
    -470            return f"RETURNS {table}{self.sql(expression, 'this')}"
    +            
    470        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    +471            table = expression.args.get("table")
    +472            table = f"{table} " if table else ""
    +473            return f"RETURNS {table}{self.sql(expression, 'this')}"
     
    @@ -1412,6 +1421,7 @@ Default: True
    cache_sql
    characterset_sql
    column_sql
    +
    columnposition_sql
    columndef_sql
    columnconstraint_sql
    autoincrementcolumnconstraint_sql
    @@ -1528,6 +1538,7 @@ Default: True
    primarykey_sql
    unique_sql
    if_sql
    +
    matchagainst_sql
    jsonkeyvalue_sql
    jsonobject_sql
    in_sql
    @@ -1579,8 +1590,10 @@ Default: True
    gt_sql
    gte_sql
    ilike_sql
    +
    ilikeany_sql
    is_sql
    like_sql
    +
    likeany_sql
    similarto_sql
    lt_sql
    lte_sql
    diff --git a/docs/sqlglot/diff.html b/docs/sqlglot/diff.html index c31b7ab..e1f3077 100644 --- a/docs/sqlglot/diff.html +++ b/docs/sqlglot/diff.html @@ -3,7 +3,7 @@ - + sqlglot.diff API documentation diff --git a/docs/sqlglot/errors.html b/docs/sqlglot/errors.html index 5628cbd..2808c38 100644 --- a/docs/sqlglot/errors.html +++ b/docs/sqlglot/errors.html @@ -3,7 +3,7 @@ - + sqlglot.errors API documentation diff --git a/docs/sqlglot/executor.html b/docs/sqlglot/executor.html index 10f16bb..a1e117c 100644 --- a/docs/sqlglot/executor.html +++ b/docs/sqlglot/executor.html @@ -3,7 +3,7 @@ - + sqlglot.executor API documentation diff --git a/docs/sqlglot/executor/context.html b/docs/sqlglot/executor/context.html index 3e96344..26e8ba8 100644 --- a/docs/sqlglot/executor/context.html +++ b/docs/sqlglot/executor/context.html @@ -3,7 +3,7 @@ - + sqlglot.executor.context API documentation diff --git a/docs/sqlglot/executor/env.html b/docs/sqlglot/executor/env.html index 1abb468..eed261e 100644 --- a/docs/sqlglot/executor/env.html +++ b/docs/sqlglot/executor/env.html @@ -3,7 +3,7 @@ - + sqlglot.executor.env API documentation diff --git a/docs/sqlglot/executor/python.html b/docs/sqlglot/executor/python.html index a00e7e8..9f3c506 100644 --- a/docs/sqlglot/executor/python.html +++ b/docs/sqlglot/executor/python.html @@ -3,7 +3,7 @@ - + sqlglot.executor.python API documentation @@ -1674,6 +1674,7 @@ Default: True
    cache_sql
    characterset_sql
    column_sql
    +
    columnposition_sql
    columndef_sql
    columnconstraint_sql
    autoincrementcolumnconstraint_sql
    @@ -1791,6 +1792,7 @@ Default: True
    primarykey_sql
    unique_sql
    if_sql
    +
    matchagainst_sql
    jsonkeyvalue_sql
    jsonobject_sql
    in_sql
    @@ -1842,8 +1844,10 @@ Default: True
    gt_sql
    gte_sql
    ilike_sql
    +
    ilikeany_sql
    is_sql
    like_sql
    +
    likeany_sql
    similarto_sql
    lt_sql
    lte_sql
    diff --git a/docs/sqlglot/executor/table.html b/docs/sqlglot/executor/table.html index 69a8921..38ad2df 100644 --- a/docs/sqlglot/executor/table.html +++ b/docs/sqlglot/executor/table.html @@ -3,7 +3,7 @@ - + sqlglot.executor.table API documentation diff --git a/docs/sqlglot/expressions.html b/docs/sqlglot/expressions.html index de5a274..6463633 100644 --- a/docs/sqlglot/expressions.html +++ b/docs/sqlglot/expressions.html @@ -3,7 +3,7 @@ - + sqlglot.expressions API documentation @@ -316,6 +316,12 @@ + +
  • + ColumnPosition +
      +
    +
  • ColumnDef @@ -1918,6 +1924,12 @@
    +
  • +
  • + Hll +
      +
    +
  • ApproxDistinct @@ -2410,6 +2422,12 @@
    +
  • +
  • + JSONFormat +
      +
    +
  • Least @@ -2484,7 +2502,7 @@
  • - Matches + MatchAgainst
    @@ -3956,4170 +3974,4186 @@ SQL expressions, such as sqlglot.expressions.select< 948 return Dot.build(parts) 949 950 - 951class ColumnDef(Expression): - 952 arg_types = { - 953 "this": True, - 954 "kind": False, - 955 "constraints": False, - 956 "exists": False, - 957 } - 958 - 959 - 960class AlterColumn(Expression): - 961 arg_types = { - 962 "this": True, - 963 "dtype": False, - 964 "collate": False, - 965 "using": False, - 966 "default": False, - 967 "drop": False, - 968 } - 969 - 970 - 971class RenameTable(Expression): - 972 pass - 973 + 951class ColumnPosition(Expression): + 952 arg_types = {"this": False, "position": True} + 953 + 954 + 955class ColumnDef(Expression): + 956 arg_types = { + 957 "this": True, + 958 "kind": False, + 959 "constraints": False, + 960 "exists": False, + 961 "position": False, + 962 } + 963 + 964 + 965class AlterColumn(Expression): + 966 arg_types = { + 967 "this": True, + 968 "dtype": False, + 969 "collate": False, + 970 "using": False, + 971 "default": False, + 972 "drop": False, + 973 } 974 - 975class SetTag(Expression): - 976 arg_types = {"expressions": True, "unset": False} - 977 + 975 + 976class RenameTable(Expression): + 977 pass 978 - 979class Comment(Expression): - 980 arg_types = {"this": True, "kind": True, "expression": True, "exists": False} - 981 + 979 + 980class SetTag(Expression): + 981 arg_types = {"expressions": True, "unset": False} 982 - 983class ColumnConstraint(Expression): - 984 arg_types = {"this": False, "kind": True} - 985 + 983 + 984class Comment(Expression): + 985 arg_types = {"this": True, "kind": True, "expression": True, "exists": False} 986 - 987class ColumnConstraintKind(Expression): - 988 pass - 989 + 987 + 988class ColumnConstraint(Expression): + 989 arg_types = {"this": False, "kind": True} 990 - 991class AutoIncrementColumnConstraint(ColumnConstraintKind): - 992 pass - 993 + 991 + 992class ColumnConstraintKind(Expression): + 993 pass 994 - 995class CaseSpecificColumnConstraint(ColumnConstraintKind): - 996 arg_types = {"not_": True} - 997 + 995 + 996class AutoIncrementColumnConstraint(ColumnConstraintKind): + 997 pass 998 - 999class CharacterSetColumnConstraint(ColumnConstraintKind): -1000 arg_types = {"this": True} -1001 + 999 +1000class CaseSpecificColumnConstraint(ColumnConstraintKind): +1001 arg_types = {"not_": True} 1002 -1003class CheckColumnConstraint(ColumnConstraintKind): -1004 pass -1005 +1003 +1004class CharacterSetColumnConstraint(ColumnConstraintKind): +1005 arg_types = {"this": True} 1006 -1007class CollateColumnConstraint(ColumnConstraintKind): -1008 pass -1009 +1007 +1008class CheckColumnConstraint(ColumnConstraintKind): +1009 pass 1010 -1011class CommentColumnConstraint(ColumnConstraintKind): -1012 pass -1013 +1011 +1012class CollateColumnConstraint(ColumnConstraintKind): +1013 pass 1014 -1015class CompressColumnConstraint(ColumnConstraintKind): -1016 pass -1017 +1015 +1016class CommentColumnConstraint(ColumnConstraintKind): +1017 pass 1018 -1019class DateFormatColumnConstraint(ColumnConstraintKind): -1020 arg_types = {"this": True} -1021 +1019 +1020class CompressColumnConstraint(ColumnConstraintKind): +1021 pass 1022 -1023class DefaultColumnConstraint(ColumnConstraintKind): -1024 pass -1025 +1023 +1024class DateFormatColumnConstraint(ColumnConstraintKind): +1025 arg_types = {"this": True} 1026 -1027class EncodeColumnConstraint(ColumnConstraintKind): -1028 pass -1029 +1027 +1028class DefaultColumnConstraint(ColumnConstraintKind): +1029 pass 1030 -1031class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind): -1032 # this: True -> ALWAYS, this: False -> BY DEFAULT -1033 arg_types = { -1034 "this": False, -1035 "start": False, -1036 "increment": False, -1037 "minvalue": False, -1038 "maxvalue": False, -1039 "cycle": False, -1040 } -1041 -1042 -1043class InlineLengthColumnConstraint(ColumnConstraintKind): -1044 pass -1045 +1031 +1032class EncodeColumnConstraint(ColumnConstraintKind): +1033 pass +1034 +1035 +1036class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind): +1037 # this: True -> ALWAYS, this: False -> BY DEFAULT +1038 arg_types = { +1039 "this": False, +1040 "start": False, +1041 "increment": False, +1042 "minvalue": False, +1043 "maxvalue": False, +1044 "cycle": False, +1045 } 1046 -1047class NotNullColumnConstraint(ColumnConstraintKind): -1048 arg_types = {"allow_null": False} -1049 +1047 +1048class InlineLengthColumnConstraint(ColumnConstraintKind): +1049 pass 1050 -1051class PrimaryKeyColumnConstraint(ColumnConstraintKind): -1052 arg_types = {"desc": False} -1053 +1051 +1052class NotNullColumnConstraint(ColumnConstraintKind): +1053 arg_types = {"allow_null": False} 1054 -1055class TitleColumnConstraint(ColumnConstraintKind): -1056 pass -1057 +1055 +1056class PrimaryKeyColumnConstraint(ColumnConstraintKind): +1057 arg_types = {"desc": False} 1058 -1059class UniqueColumnConstraint(ColumnConstraintKind): -1060 arg_types: t.Dict[str, t.Any] = {} -1061 +1059 +1060class TitleColumnConstraint(ColumnConstraintKind): +1061 pass 1062 -1063class UppercaseColumnConstraint(ColumnConstraintKind): -1064 arg_types: t.Dict[str, t.Any] = {} -1065 +1063 +1064class UniqueColumnConstraint(ColumnConstraintKind): +1065 arg_types: t.Dict[str, t.Any] = {} 1066 -1067class PathColumnConstraint(ColumnConstraintKind): -1068 pass -1069 +1067 +1068class UppercaseColumnConstraint(ColumnConstraintKind): +1069 arg_types: t.Dict[str, t.Any] = {} 1070 -1071class Constraint(Expression): -1072 arg_types = {"this": True, "expressions": True} -1073 +1071 +1072class PathColumnConstraint(ColumnConstraintKind): +1073 pass 1074 -1075class Delete(Expression): -1076 arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False} -1077 -1078 def delete( -1079 self, -1080 table: ExpOrStr, -1081 dialect: DialectType = None, -1082 copy: bool = True, -1083 **opts, -1084 ) -> Delete: -1085 """ -1086 Create a DELETE expression or replace the table on an existing DELETE expression. -1087 -1088 Example: -1089 >>> delete("tbl").sql() -1090 'DELETE FROM tbl' -1091 -1092 Args: -1093 table: the table from which to delete. -1094 dialect: the dialect used to parse the input expression. -1095 copy: if `False`, modify this expression instance in-place. -1096 opts: other options to use to parse the input expressions. -1097 -1098 Returns: -1099 Delete: the modified expression. -1100 """ -1101 return _apply_builder( -1102 expression=table, -1103 instance=self, -1104 arg="this", -1105 dialect=dialect, -1106 into=Table, -1107 copy=copy, -1108 **opts, -1109 ) -1110 -1111 def where( -1112 self, -1113 *expressions: ExpOrStr, -1114 append: bool = True, -1115 dialect: DialectType = None, -1116 copy: bool = True, -1117 **opts, -1118 ) -> Delete: -1119 """ -1120 Append to or set the WHERE expressions. -1121 -1122 Example: -1123 >>> delete("tbl").where("x = 'a' OR x < 'b'").sql() -1124 "DELETE FROM tbl WHERE x = 'a' OR x < 'b'" -1125 -1126 Args: -1127 *expressions: the SQL code strings to parse. -1128 If an `Expression` instance is passed, it will be used as-is. -1129 Multiple expressions are combined with an AND operator. -1130 append: if `True`, AND the new expressions to any existing expression. -1131 Otherwise, this resets the expression. -1132 dialect: the dialect used to parse the input expressions. -1133 copy: if `False`, modify this expression instance in-place. -1134 opts: other options to use to parse the input expressions. -1135 -1136 Returns: -1137 Delete: the modified expression. -1138 """ -1139 return _apply_conjunction_builder( -1140 *expressions, -1141 instance=self, -1142 arg="where", -1143 append=append, -1144 into=Where, -1145 dialect=dialect, -1146 copy=copy, -1147 **opts, -1148 ) -1149 -1150 def returning( -1151 self, -1152 expression: ExpOrStr, -1153 dialect: DialectType = None, -1154 copy: bool = True, -1155 **opts, -1156 ) -> Delete: -1157 """ -1158 Set the RETURNING expression. Not supported by all dialects. -1159 -1160 Example: -1161 >>> delete("tbl").returning("*", dialect="postgres").sql() -1162 'DELETE FROM tbl RETURNING *' -1163 -1164 Args: -1165 expression: the SQL code strings to parse. -1166 If an `Expression` instance is passed, it will be used as-is. -1167 dialect: the dialect used to parse the input expressions. -1168 copy: if `False`, modify this expression instance in-place. -1169 opts: other options to use to parse the input expressions. -1170 -1171 Returns: -1172 Delete: the modified expression. -1173 """ -1174 return _apply_builder( -1175 expression=expression, -1176 instance=self, -1177 arg="returning", -1178 prefix="RETURNING", -1179 dialect=dialect, -1180 copy=copy, -1181 into=Returning, -1182 **opts, -1183 ) -1184 -1185 -1186class Drop(Expression): -1187 arg_types = { -1188 "this": False, -1189 "kind": False, -1190 "exists": False, -1191 "temporary": False, -1192 "materialized": False, -1193 "cascade": False, -1194 } -1195 -1196 -1197class Filter(Expression): -1198 arg_types = {"this": True, "expression": True} -1199 -1200 -1201class Check(Expression): -1202 pass -1203 -1204 -1205class Directory(Expression): -1206 # https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-dml-insert-overwrite-directory-hive.html -1207 arg_types = {"this": True, "local": False, "row_format": False} -1208 +1075 +1076class Constraint(Expression): +1077 arg_types = {"this": True, "expressions": True} +1078 +1079 +1080class Delete(Expression): +1081 arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False} +1082 +1083 def delete( +1084 self, +1085 table: ExpOrStr, +1086 dialect: DialectType = None, +1087 copy: bool = True, +1088 **opts, +1089 ) -> Delete: +1090 """ +1091 Create a DELETE expression or replace the table on an existing DELETE expression. +1092 +1093 Example: +1094 >>> delete("tbl").sql() +1095 'DELETE FROM tbl' +1096 +1097 Args: +1098 table: the table from which to delete. +1099 dialect: the dialect used to parse the input expression. +1100 copy: if `False`, modify this expression instance in-place. +1101 opts: other options to use to parse the input expressions. +1102 +1103 Returns: +1104 Delete: the modified expression. +1105 """ +1106 return _apply_builder( +1107 expression=table, +1108 instance=self, +1109 arg="this", +1110 dialect=dialect, +1111 into=Table, +1112 copy=copy, +1113 **opts, +1114 ) +1115 +1116 def where( +1117 self, +1118 *expressions: ExpOrStr, +1119 append: bool = True, +1120 dialect: DialectType = None, +1121 copy: bool = True, +1122 **opts, +1123 ) -> Delete: +1124 """ +1125 Append to or set the WHERE expressions. +1126 +1127 Example: +1128 >>> delete("tbl").where("x = 'a' OR x < 'b'").sql() +1129 "DELETE FROM tbl WHERE x = 'a' OR x < 'b'" +1130 +1131 Args: +1132 *expressions: the SQL code strings to parse. +1133 If an `Expression` instance is passed, it will be used as-is. +1134 Multiple expressions are combined with an AND operator. +1135 append: if `True`, AND the new expressions to any existing expression. +1136 Otherwise, this resets the expression. +1137 dialect: the dialect used to parse the input expressions. +1138 copy: if `False`, modify this expression instance in-place. +1139 opts: other options to use to parse the input expressions. +1140 +1141 Returns: +1142 Delete: the modified expression. +1143 """ +1144 return _apply_conjunction_builder( +1145 *expressions, +1146 instance=self, +1147 arg="where", +1148 append=append, +1149 into=Where, +1150 dialect=dialect, +1151 copy=copy, +1152 **opts, +1153 ) +1154 +1155 def returning( +1156 self, +1157 expression: ExpOrStr, +1158 dialect: DialectType = None, +1159 copy: bool = True, +1160 **opts, +1161 ) -> Delete: +1162 """ +1163 Set the RETURNING expression. Not supported by all dialects. +1164 +1165 Example: +1166 >>> delete("tbl").returning("*", dialect="postgres").sql() +1167 'DELETE FROM tbl RETURNING *' +1168 +1169 Args: +1170 expression: the SQL code strings to parse. +1171 If an `Expression` instance is passed, it will be used as-is. +1172 dialect: the dialect used to parse the input expressions. +1173 copy: if `False`, modify this expression instance in-place. +1174 opts: other options to use to parse the input expressions. +1175 +1176 Returns: +1177 Delete: the modified expression. +1178 """ +1179 return _apply_builder( +1180 expression=expression, +1181 instance=self, +1182 arg="returning", +1183 prefix="RETURNING", +1184 dialect=dialect, +1185 copy=copy, +1186 into=Returning, +1187 **opts, +1188 ) +1189 +1190 +1191class Drop(Expression): +1192 arg_types = { +1193 "this": False, +1194 "kind": False, +1195 "exists": False, +1196 "temporary": False, +1197 "materialized": False, +1198 "cascade": False, +1199 "constraints": False, +1200 } +1201 +1202 +1203class Filter(Expression): +1204 arg_types = {"this": True, "expression": True} +1205 +1206 +1207class Check(Expression): +1208 pass 1209 -1210class ForeignKey(Expression): -1211 arg_types = { -1212 "expressions": True, -1213 "reference": False, -1214 "delete": False, -1215 "update": False, -1216 } -1217 -1218 -1219class PrimaryKey(Expression): -1220 arg_types = {"expressions": True, "options": False} -1221 -1222 -1223class Unique(Expression): -1224 arg_types = {"expressions": True} -1225 -1226 -1227# https://www.postgresql.org/docs/9.1/sql-selectinto.html -1228# https://docs.aws.amazon.com/redshift/latest/dg/r_SELECT_INTO.html#r_SELECT_INTO-examples -1229class Into(Expression): -1230 arg_types = {"this": True, "temporary": False, "unlogged": False} +1210 +1211class Directory(Expression): +1212 # https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-dml-insert-overwrite-directory-hive.html +1213 arg_types = {"this": True, "local": False, "row_format": False} +1214 +1215 +1216class ForeignKey(Expression): +1217 arg_types = { +1218 "expressions": True, +1219 "reference": False, +1220 "delete": False, +1221 "update": False, +1222 } +1223 +1224 +1225class PrimaryKey(Expression): +1226 arg_types = {"expressions": True, "options": False} +1227 +1228 +1229class Unique(Expression): +1230 arg_types = {"expressions": True} 1231 1232 -1233class From(Expression): -1234 arg_types = {"expressions": True} -1235 -1236 -1237class Having(Expression): -1238 pass -1239 -1240 -1241class Hint(Expression): -1242 arg_types = {"expressions": True} -1243 -1244 -1245class JoinHint(Expression): -1246 arg_types = {"this": True, "expressions": True} -1247 -1248 -1249class Identifier(Expression): -1250 arg_types = {"this": True, "quoted": False} -1251 -1252 @property -1253 def quoted(self): -1254 return bool(self.args.get("quoted")) -1255 -1256 @property -1257 def hashable_args(self) -> t.Any: -1258 if self.quoted and any(char.isupper() for char in self.this): -1259 return (self.this, self.quoted) -1260 return self.this.lower() +1233# https://www.postgresql.org/docs/9.1/sql-selectinto.html +1234# https://docs.aws.amazon.com/redshift/latest/dg/r_SELECT_INTO.html#r_SELECT_INTO-examples +1235class Into(Expression): +1236 arg_types = {"this": True, "temporary": False, "unlogged": False} +1237 +1238 +1239class From(Expression): +1240 arg_types = {"expressions": True} +1241 +1242 +1243class Having(Expression): +1244 pass +1245 +1246 +1247class Hint(Expression): +1248 arg_types = {"expressions": True} +1249 +1250 +1251class JoinHint(Expression): +1252 arg_types = {"this": True, "expressions": True} +1253 +1254 +1255class Identifier(Expression): +1256 arg_types = {"this": True, "quoted": False} +1257 +1258 @property +1259 def quoted(self): +1260 return bool(self.args.get("quoted")) 1261 1262 @property -1263 def output_name(self): -1264 return self.name -1265 -1266 -1267class Index(Expression): -1268 arg_types = { -1269 "this": False, -1270 "table": False, -1271 "where": False, -1272 "columns": False, -1273 "unique": False, -1274 "primary": False, -1275 "amp": False, # teradata -1276 } -1277 -1278 -1279class Insert(Expression): -1280 arg_types = { -1281 "with": False, -1282 "this": True, -1283 "expression": False, -1284 "returning": False, -1285 "overwrite": False, -1286 "exists": False, -1287 "partition": False, -1288 "alternative": False, -1289 } -1290 -1291 -1292class Returning(Expression): -1293 arg_types = {"expressions": True} -1294 -1295 -1296# https://dev.mysql.com/doc/refman/8.0/en/charset-introducer.html -1297class Introducer(Expression): -1298 arg_types = {"this": True, "expression": True} -1299 +1263 def hashable_args(self) -> t.Any: +1264 if self.quoted and any(char.isupper() for char in self.this): +1265 return (self.this, self.quoted) +1266 return self.this.lower() +1267 +1268 @property +1269 def output_name(self): +1270 return self.name +1271 +1272 +1273class Index(Expression): +1274 arg_types = { +1275 "this": False, +1276 "table": False, +1277 "where": False, +1278 "columns": False, +1279 "unique": False, +1280 "primary": False, +1281 "amp": False, # teradata +1282 } +1283 +1284 +1285class Insert(Expression): +1286 arg_types = { +1287 "with": False, +1288 "this": True, +1289 "expression": False, +1290 "returning": False, +1291 "overwrite": False, +1292 "exists": False, +1293 "partition": False, +1294 "alternative": False, +1295 } +1296 +1297 +1298class Returning(Expression): +1299 arg_types = {"expressions": True} 1300 -1301# national char, like n'utf8' -1302class National(Expression): -1303 pass -1304 +1301 +1302# https://dev.mysql.com/doc/refman/8.0/en/charset-introducer.html +1303class Introducer(Expression): +1304 arg_types = {"this": True, "expression": True} 1305 -1306class LoadData(Expression): -1307 arg_types = { -1308 "this": True, -1309 "local": False, -1310 "overwrite": False, -1311 "inpath": True, -1312 "partition": False, -1313 "input_format": False, -1314 "serde": False, -1315 } -1316 -1317 -1318class Partition(Expression): -1319 arg_types = {"expressions": True} -1320 -1321 -1322class Fetch(Expression): -1323 arg_types = {"direction": False, "count": False} -1324 -1325 -1326class Group(Expression): -1327 arg_types = { -1328 "expressions": False, -1329 "grouping_sets": False, -1330 "cube": False, -1331 "rollup": False, -1332 } -1333 -1334 -1335class Lambda(Expression): -1336 arg_types = {"this": True, "expressions": True} -1337 -1338 -1339class Limit(Expression): -1340 arg_types = {"this": False, "expression": True} -1341 -1342 -1343class Literal(Condition): -1344 arg_types = {"this": True, "is_string": True} -1345 -1346 @property -1347 def hashable_args(self) -> t.Any: -1348 return (self.this, self.args.get("is_string")) -1349 -1350 @classmethod -1351 def number(cls, number) -> Literal: -1352 return cls(this=str(number), is_string=False) -1353 -1354 @classmethod -1355 def string(cls, string) -> Literal: -1356 return cls(this=str(string), is_string=True) -1357 -1358 @property -1359 def output_name(self): -1360 return self.name -1361 -1362 -1363class Join(Expression): -1364 arg_types = { -1365 "this": True, -1366 "on": False, -1367 "side": False, -1368 "kind": False, -1369 "using": False, -1370 "natural": False, -1371 } -1372 -1373 @property -1374 def kind(self): -1375 return self.text("kind").upper() -1376 -1377 @property -1378 def side(self): -1379 return self.text("side").upper() -1380 -1381 @property -1382 def alias_or_name(self): -1383 return self.this.alias_or_name -1384 -1385 def on(self, *expressions, append=True, dialect=None, copy=True, **opts): -1386 """ -1387 Append to or set the ON expressions. -1388 -1389 Example: -1390 >>> import sqlglot -1391 >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql() -1392 'JOIN x ON y = 1' -1393 -1394 Args: -1395 *expressions (str | Expression): the SQL code strings to parse. -1396 If an `Expression` instance is passed, it will be used as-is. -1397 Multiple expressions are combined with an AND operator. -1398 append (bool): if `True`, AND the new expressions to any existing expression. -1399 Otherwise, this resets the expression. -1400 dialect (str): the dialect used to parse the input expressions. -1401 copy (bool): if `False`, modify this expression instance in-place. -1402 opts (kwargs): other options to use to parse the input expressions. -1403 -1404 Returns: -1405 Join: the modified join expression. -1406 """ -1407 join = _apply_conjunction_builder( -1408 *expressions, -1409 instance=self, -1410 arg="on", -1411 append=append, -1412 dialect=dialect, -1413 copy=copy, -1414 **opts, -1415 ) -1416 -1417 if join.kind == "CROSS": -1418 join.set("kind", None) -1419 -1420 return join -1421 -1422 def using(self, *expressions, append=True, dialect=None, copy=True, **opts): -1423 """ -1424 Append to or set the USING expressions. +1306 +1307# national char, like n'utf8' +1308class National(Expression): +1309 pass +1310 +1311 +1312class LoadData(Expression): +1313 arg_types = { +1314 "this": True, +1315 "local": False, +1316 "overwrite": False, +1317 "inpath": True, +1318 "partition": False, +1319 "input_format": False, +1320 "serde": False, +1321 } +1322 +1323 +1324class Partition(Expression): +1325 arg_types = {"expressions": True} +1326 +1327 +1328class Fetch(Expression): +1329 arg_types = {"direction": False, "count": False} +1330 +1331 +1332class Group(Expression): +1333 arg_types = { +1334 "expressions": False, +1335 "grouping_sets": False, +1336 "cube": False, +1337 "rollup": False, +1338 } +1339 +1340 +1341class Lambda(Expression): +1342 arg_types = {"this": True, "expressions": True} +1343 +1344 +1345class Limit(Expression): +1346 arg_types = {"this": False, "expression": True} +1347 +1348 +1349class Literal(Condition): +1350 arg_types = {"this": True, "is_string": True} +1351 +1352 @property +1353 def hashable_args(self) -> t.Any: +1354 return (self.this, self.args.get("is_string")) +1355 +1356 @classmethod +1357 def number(cls, number) -> Literal: +1358 return cls(this=str(number), is_string=False) +1359 +1360 @classmethod +1361 def string(cls, string) -> Literal: +1362 return cls(this=str(string), is_string=True) +1363 +1364 @property +1365 def output_name(self): +1366 return self.name +1367 +1368 +1369class Join(Expression): +1370 arg_types = { +1371 "this": True, +1372 "on": False, +1373 "side": False, +1374 "kind": False, +1375 "using": False, +1376 "natural": False, +1377 } +1378 +1379 @property +1380 def kind(self): +1381 return self.text("kind").upper() +1382 +1383 @property +1384 def side(self): +1385 return self.text("side").upper() +1386 +1387 @property +1388 def alias_or_name(self): +1389 return self.this.alias_or_name +1390 +1391 def on(self, *expressions, append=True, dialect=None, copy=True, **opts): +1392 """ +1393 Append to or set the ON expressions. +1394 +1395 Example: +1396 >>> import sqlglot +1397 >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql() +1398 'JOIN x ON y = 1' +1399 +1400 Args: +1401 *expressions (str | Expression): the SQL code strings to parse. +1402 If an `Expression` instance is passed, it will be used as-is. +1403 Multiple expressions are combined with an AND operator. +1404 append (bool): if `True`, AND the new expressions to any existing expression. +1405 Otherwise, this resets the expression. +1406 dialect (str): the dialect used to parse the input expressions. +1407 copy (bool): if `False`, modify this expression instance in-place. +1408 opts (kwargs): other options to use to parse the input expressions. +1409 +1410 Returns: +1411 Join: the modified join expression. +1412 """ +1413 join = _apply_conjunction_builder( +1414 *expressions, +1415 instance=self, +1416 arg="on", +1417 append=append, +1418 dialect=dialect, +1419 copy=copy, +1420 **opts, +1421 ) +1422 +1423 if join.kind == "CROSS": +1424 join.set("kind", None) 1425 -1426 Example: -1427 >>> import sqlglot -1428 >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql() -1429 'JOIN x USING (foo, bla)' -1430 -1431 Args: -1432 *expressions (str | Expression): the SQL code strings to parse. -1433 If an `Expression` instance is passed, it will be used as-is. -1434 append (bool): if `True`, concatenate the new expressions to the existing "using" list. -1435 Otherwise, this resets the expression. -1436 dialect (str): the dialect used to parse the input expressions. -1437 copy (bool): if `False`, modify this expression instance in-place. -1438 opts (kwargs): other options to use to parse the input expressions. -1439 -1440 Returns: -1441 Join: the modified join expression. -1442 """ -1443 join = _apply_list_builder( -1444 *expressions, -1445 instance=self, -1446 arg="using", -1447 append=append, -1448 dialect=dialect, -1449 copy=copy, -1450 **opts, -1451 ) -1452 -1453 if join.kind == "CROSS": -1454 join.set("kind", None) -1455 -1456 return join -1457 +1426 return join +1427 +1428 def using(self, *expressions, append=True, dialect=None, copy=True, **opts): +1429 """ +1430 Append to or set the USING expressions. +1431 +1432 Example: +1433 >>> import sqlglot +1434 >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql() +1435 'JOIN x USING (foo, bla)' +1436 +1437 Args: +1438 *expressions (str | Expression): the SQL code strings to parse. +1439 If an `Expression` instance is passed, it will be used as-is. +1440 append (bool): if `True`, concatenate the new expressions to the existing "using" list. +1441 Otherwise, this resets the expression. +1442 dialect (str): the dialect used to parse the input expressions. +1443 copy (bool): if `False`, modify this expression instance in-place. +1444 opts (kwargs): other options to use to parse the input expressions. +1445 +1446 Returns: +1447 Join: the modified join expression. +1448 """ +1449 join = _apply_list_builder( +1450 *expressions, +1451 instance=self, +1452 arg="using", +1453 append=append, +1454 dialect=dialect, +1455 copy=copy, +1456 **opts, +1457 ) 1458 -1459class Lateral(UDTF): -1460 arg_types = {"this": True, "view": False, "outer": False, "alias": False} +1459 if join.kind == "CROSS": +1460 join.set("kind", None) 1461 -1462 -1463class MatchRecognize(Expression): -1464 arg_types = { -1465 "partition_by": False, -1466 "order": False, -1467 "measures": False, -1468 "rows": False, -1469 "after": False, -1470 "pattern": False, -1471 "define": False, -1472 } -1473 -1474 -1475# Clickhouse FROM FINAL modifier -1476# https://clickhouse.com/docs/en/sql-reference/statements/select/from/#final-modifier -1477class Final(Expression): -1478 pass +1462 return join +1463 +1464 +1465class Lateral(UDTF): +1466 arg_types = {"this": True, "view": False, "outer": False, "alias": False} +1467 +1468 +1469class MatchRecognize(Expression): +1470 arg_types = { +1471 "partition_by": False, +1472 "order": False, +1473 "measures": False, +1474 "rows": False, +1475 "after": False, +1476 "pattern": False, +1477 "define": False, +1478 } 1479 1480 -1481class Offset(Expression): -1482 arg_types = {"this": False, "expression": True} -1483 -1484 -1485class Order(Expression): -1486 arg_types = {"this": False, "expressions": True} -1487 -1488 -1489# hive specific sorts -1490# https://cwiki.apache.org/confluence/display/Hive/LanguageManual+SortBy -1491class Cluster(Order): -1492 pass +1481# Clickhouse FROM FINAL modifier +1482# https://clickhouse.com/docs/en/sql-reference/statements/select/from/#final-modifier +1483class Final(Expression): +1484 pass +1485 +1486 +1487class Offset(Expression): +1488 arg_types = {"this": False, "expression": True} +1489 +1490 +1491class Order(Expression): +1492 arg_types = {"this": False, "expressions": True} 1493 1494 -1495class Distribute(Order): -1496 pass -1497 -1498 -1499class Sort(Order): -1500 pass -1501 -1502 -1503class Ordered(Expression): -1504 arg_types = {"this": True, "desc": True, "nulls_first": True} -1505 -1506 -1507class Property(Expression): -1508 arg_types = {"this": True, "value": True} -1509 -1510 -1511class AfterJournalProperty(Property): -1512 arg_types = {"no": True, "dual": False, "local": False} -1513 -1514 -1515class AlgorithmProperty(Property): -1516 arg_types = {"this": True} -1517 -1518 -1519class AutoIncrementProperty(Property): -1520 arg_types = {"this": True} -1521 -1522 -1523class BlockCompressionProperty(Property): -1524 arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True} -1525 -1526 -1527class CharacterSetProperty(Property): -1528 arg_types = {"this": True, "default": True} -1529 -1530 -1531class ChecksumProperty(Property): -1532 arg_types = {"on": False, "default": False} -1533 -1534 -1535class CollateProperty(Property): -1536 arg_types = {"this": True} -1537 -1538 -1539class DataBlocksizeProperty(Property): -1540 arg_types = {"size": False, "units": False, "min": False, "default": False} -1541 -1542 -1543class DefinerProperty(Property): -1544 arg_types = {"this": True} -1545 -1546 -1547class DistKeyProperty(Property): -1548 arg_types = {"this": True} -1549 -1550 -1551class DistStyleProperty(Property): -1552 arg_types = {"this": True} -1553 -1554 -1555class EngineProperty(Property): -1556 arg_types = {"this": True} -1557 -1558 -1559class ExecuteAsProperty(Property): -1560 arg_types = {"this": True} -1561 -1562 -1563class ExternalProperty(Property): -1564 arg_types = {"this": False} -1565 -1566 -1567class FallbackProperty(Property): -1568 arg_types = {"no": True, "protection": False} -1569 -1570 -1571class FileFormatProperty(Property): -1572 arg_types = {"this": True} -1573 -1574 -1575class FreespaceProperty(Property): -1576 arg_types = {"this": True, "percent": False} -1577 -1578 -1579class IsolatedLoadingProperty(Property): -1580 arg_types = { -1581 "no": True, -1582 "concurrent": True, -1583 "for_all": True, -1584 "for_insert": True, -1585 "for_none": True, -1586 } -1587 -1588 -1589class JournalProperty(Property): -1590 arg_types = {"no": True, "dual": False, "before": False} -1591 -1592 -1593class LanguageProperty(Property): -1594 arg_types = {"this": True} -1595 -1596 -1597class LikeProperty(Property): -1598 arg_types = {"this": True, "expressions": False} -1599 -1600 -1601class LocationProperty(Property): -1602 arg_types = {"this": True} -1603 -1604 -1605class LockingProperty(Property): -1606 arg_types = { -1607 "this": False, -1608 "kind": True, -1609 "for_or_in": True, -1610 "lock_type": True, -1611 "override": False, -1612 } -1613 -1614 -1615class LogProperty(Property): -1616 arg_types = {"no": True} -1617 -1618 -1619class MaterializedProperty(Property): -1620 arg_types = {"this": False} -1621 -1622 -1623class MergeBlockRatioProperty(Property): -1624 arg_types = {"this": False, "no": False, "default": False, "percent": False} -1625 -1626 -1627class NoPrimaryIndexProperty(Property): -1628 arg_types = {"this": False} -1629 -1630 -1631class OnCommitProperty(Property): -1632 arg_type = {"this": False} -1633 -1634 -1635class PartitionedByProperty(Property): -1636 arg_types = {"this": True} -1637 -1638 -1639class ReturnsProperty(Property): -1640 arg_types = {"this": True, "is_table": False, "table": False} -1641 -1642 -1643class RowFormatDelimitedProperty(Property): -1644 # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml -1645 arg_types = { -1646 "fields": False, -1647 "escaped": False, -1648 "collection_items": False, -1649 "map_keys": False, -1650 "lines": False, -1651 "null": False, -1652 "serde": False, -1653 } -1654 -1655 -1656class RowFormatSerdeProperty(Property): -1657 arg_types = {"this": True} -1658 -1659 -1660class SchemaCommentProperty(Property): -1661 arg_types = {"this": True} -1662 -1663 -1664class SerdeProperties(Property): -1665 arg_types = {"expressions": True} -1666 -1667 -1668class SetProperty(Property): -1669 arg_types = {"multi": True} -1670 -1671 -1672class SortKeyProperty(Property): -1673 arg_types = {"this": True, "compound": False} -1674 -1675 -1676class SqlSecurityProperty(Property): -1677 arg_types = {"definer": True} -1678 -1679 -1680class TableFormatProperty(Property): -1681 arg_types = {"this": True} -1682 -1683 -1684class TemporaryProperty(Property): -1685 arg_types = {"global_": True} -1686 -1687 -1688class TransientProperty(Property): -1689 arg_types = {"this": False} -1690 -1691 -1692class VolatilityProperty(Property): -1693 arg_types = {"this": True} -1694 -1695 -1696class WithDataProperty(Property): -1697 arg_types = {"no": True, "statistics": False} -1698 -1699 -1700class WithJournalTableProperty(Property): -1701 arg_types = {"this": True} -1702 -1703 -1704class Properties(Expression): -1705 arg_types = {"expressions": True} -1706 -1707 NAME_TO_PROPERTY = { -1708 "ALGORITHM": AlgorithmProperty, -1709 "AUTO_INCREMENT": AutoIncrementProperty, -1710 "CHARACTER SET": CharacterSetProperty, -1711 "COLLATE": CollateProperty, -1712 "COMMENT": SchemaCommentProperty, -1713 "DEFINER": DefinerProperty, -1714 "DISTKEY": DistKeyProperty, -1715 "DISTSTYLE": DistStyleProperty, -1716 "ENGINE": EngineProperty, -1717 "EXECUTE AS": ExecuteAsProperty, -1718 "FORMAT": FileFormatProperty, -1719 "LANGUAGE": LanguageProperty, -1720 "LOCATION": LocationProperty, -1721 "PARTITIONED_BY": PartitionedByProperty, -1722 "RETURNS": ReturnsProperty, -1723 "SORTKEY": SortKeyProperty, -1724 "TABLE_FORMAT": TableFormatProperty, -1725 } -1726 -1727 PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()} -1728 -1729 # CREATE property locations -1730 # Form: schema specified -1731 # create [POST_CREATE] -1732 # table a [POST_NAME] -1733 # (b int) [POST_SCHEMA] -1734 # with ([POST_WITH]) -1735 # index (b) [POST_INDEX] -1736 # -1737 # Form: alias selection -1738 # create [POST_CREATE] -1739 # table a [POST_NAME] -1740 # as [POST_ALIAS] (select * from b) [POST_EXPRESSION] -1741 # index (c) [POST_INDEX] -1742 class Location(AutoName): -1743 POST_CREATE = auto() -1744 POST_NAME = auto() -1745 POST_SCHEMA = auto() -1746 POST_WITH = auto() -1747 POST_ALIAS = auto() -1748 POST_EXPRESSION = auto() -1749 POST_INDEX = auto() -1750 UNSUPPORTED = auto() -1751 -1752 @classmethod -1753 def from_dict(cls, properties_dict) -> Properties: -1754 expressions = [] -1755 for key, value in properties_dict.items(): -1756 property_cls = cls.NAME_TO_PROPERTY.get(key.upper()) -1757 if property_cls: -1758 expressions.append(property_cls(this=convert(value))) -1759 else: -1760 expressions.append(Property(this=Literal.string(key), value=convert(value))) -1761 -1762 return cls(expressions=expressions) -1763 -1764 -1765class Qualify(Expression): -1766 pass +1495# hive specific sorts +1496# https://cwiki.apache.org/confluence/display/Hive/LanguageManual+SortBy +1497class Cluster(Order): +1498 pass +1499 +1500 +1501class Distribute(Order): +1502 pass +1503 +1504 +1505class Sort(Order): +1506 pass +1507 +1508 +1509class Ordered(Expression): +1510 arg_types = {"this": True, "desc": True, "nulls_first": True} +1511 +1512 +1513class Property(Expression): +1514 arg_types = {"this": True, "value": True} +1515 +1516 +1517class AfterJournalProperty(Property): +1518 arg_types = {"no": True, "dual": False, "local": False} +1519 +1520 +1521class AlgorithmProperty(Property): +1522 arg_types = {"this": True} +1523 +1524 +1525class AutoIncrementProperty(Property): +1526 arg_types = {"this": True} +1527 +1528 +1529class BlockCompressionProperty(Property): +1530 arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True} +1531 +1532 +1533class CharacterSetProperty(Property): +1534 arg_types = {"this": True, "default": True} +1535 +1536 +1537class ChecksumProperty(Property): +1538 arg_types = {"on": False, "default": False} +1539 +1540 +1541class CollateProperty(Property): +1542 arg_types = {"this": True} +1543 +1544 +1545class DataBlocksizeProperty(Property): +1546 arg_types = {"size": False, "units": False, "min": False, "default": False} +1547 +1548 +1549class DefinerProperty(Property): +1550 arg_types = {"this": True} +1551 +1552 +1553class DistKeyProperty(Property): +1554 arg_types = {"this": True} +1555 +1556 +1557class DistStyleProperty(Property): +1558 arg_types = {"this": True} +1559 +1560 +1561class EngineProperty(Property): +1562 arg_types = {"this": True} +1563 +1564 +1565class ExecuteAsProperty(Property): +1566 arg_types = {"this": True} +1567 +1568 +1569class ExternalProperty(Property): +1570 arg_types = {"this": False} +1571 +1572 +1573class FallbackProperty(Property): +1574 arg_types = {"no": True, "protection": False} +1575 +1576 +1577class FileFormatProperty(Property): +1578 arg_types = {"this": True} +1579 +1580 +1581class FreespaceProperty(Property): +1582 arg_types = {"this": True, "percent": False} +1583 +1584 +1585class IsolatedLoadingProperty(Property): +1586 arg_types = { +1587 "no": True, +1588 "concurrent": True, +1589 "for_all": True, +1590 "for_insert": True, +1591 "for_none": True, +1592 } +1593 +1594 +1595class JournalProperty(Property): +1596 arg_types = {"no": True, "dual": False, "before": False} +1597 +1598 +1599class LanguageProperty(Property): +1600 arg_types = {"this": True} +1601 +1602 +1603class LikeProperty(Property): +1604 arg_types = {"this": True, "expressions": False} +1605 +1606 +1607class LocationProperty(Property): +1608 arg_types = {"this": True} +1609 +1610 +1611class LockingProperty(Property): +1612 arg_types = { +1613 "this": False, +1614 "kind": True, +1615 "for_or_in": True, +1616 "lock_type": True, +1617 "override": False, +1618 } +1619 +1620 +1621class LogProperty(Property): +1622 arg_types = {"no": True} +1623 +1624 +1625class MaterializedProperty(Property): +1626 arg_types = {"this": False} +1627 +1628 +1629class MergeBlockRatioProperty(Property): +1630 arg_types = {"this": False, "no": False, "default": False, "percent": False} +1631 +1632 +1633class NoPrimaryIndexProperty(Property): +1634 arg_types = {"this": False} +1635 +1636 +1637class OnCommitProperty(Property): +1638 arg_type = {"this": False} +1639 +1640 +1641class PartitionedByProperty(Property): +1642 arg_types = {"this": True} +1643 +1644 +1645class ReturnsProperty(Property): +1646 arg_types = {"this": True, "is_table": False, "table": False} +1647 +1648 +1649class RowFormatDelimitedProperty(Property): +1650 # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml +1651 arg_types = { +1652 "fields": False, +1653 "escaped": False, +1654 "collection_items": False, +1655 "map_keys": False, +1656 "lines": False, +1657 "null": False, +1658 "serde": False, +1659 } +1660 +1661 +1662class RowFormatSerdeProperty(Property): +1663 arg_types = {"this": True} +1664 +1665 +1666class SchemaCommentProperty(Property): +1667 arg_types = {"this": True} +1668 +1669 +1670class SerdeProperties(Property): +1671 arg_types = {"expressions": True} +1672 +1673 +1674class SetProperty(Property): +1675 arg_types = {"multi": True} +1676 +1677 +1678class SortKeyProperty(Property): +1679 arg_types = {"this": True, "compound": False} +1680 +1681 +1682class SqlSecurityProperty(Property): +1683 arg_types = {"definer": True} +1684 +1685 +1686class TableFormatProperty(Property): +1687 arg_types = {"this": True} +1688 +1689 +1690class TemporaryProperty(Property): +1691 arg_types = {"global_": True} +1692 +1693 +1694class TransientProperty(Property): +1695 arg_types = {"this": False} +1696 +1697 +1698class VolatilityProperty(Property): +1699 arg_types = {"this": True} +1700 +1701 +1702class WithDataProperty(Property): +1703 arg_types = {"no": True, "statistics": False} +1704 +1705 +1706class WithJournalTableProperty(Property): +1707 arg_types = {"this": True} +1708 +1709 +1710class Properties(Expression): +1711 arg_types = {"expressions": True} +1712 +1713 NAME_TO_PROPERTY = { +1714 "ALGORITHM": AlgorithmProperty, +1715 "AUTO_INCREMENT": AutoIncrementProperty, +1716 "CHARACTER SET": CharacterSetProperty, +1717 "COLLATE": CollateProperty, +1718 "COMMENT": SchemaCommentProperty, +1719 "DEFINER": DefinerProperty, +1720 "DISTKEY": DistKeyProperty, +1721 "DISTSTYLE": DistStyleProperty, +1722 "ENGINE": EngineProperty, +1723 "EXECUTE AS": ExecuteAsProperty, +1724 "FORMAT": FileFormatProperty, +1725 "LANGUAGE": LanguageProperty, +1726 "LOCATION": LocationProperty, +1727 "PARTITIONED_BY": PartitionedByProperty, +1728 "RETURNS": ReturnsProperty, +1729 "SORTKEY": SortKeyProperty, +1730 "TABLE_FORMAT": TableFormatProperty, +1731 } +1732 +1733 PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()} +1734 +1735 # CREATE property locations +1736 # Form: schema specified +1737 # create [POST_CREATE] +1738 # table a [POST_NAME] +1739 # (b int) [POST_SCHEMA] +1740 # with ([POST_WITH]) +1741 # index (b) [POST_INDEX] +1742 # +1743 # Form: alias selection +1744 # create [POST_CREATE] +1745 # table a [POST_NAME] +1746 # as [POST_ALIAS] (select * from b) [POST_EXPRESSION] +1747 # index (c) [POST_INDEX] +1748 class Location(AutoName): +1749 POST_CREATE = auto() +1750 POST_NAME = auto() +1751 POST_SCHEMA = auto() +1752 POST_WITH = auto() +1753 POST_ALIAS = auto() +1754 POST_EXPRESSION = auto() +1755 POST_INDEX = auto() +1756 UNSUPPORTED = auto() +1757 +1758 @classmethod +1759 def from_dict(cls, properties_dict) -> Properties: +1760 expressions = [] +1761 for key, value in properties_dict.items(): +1762 property_cls = cls.NAME_TO_PROPERTY.get(key.upper()) +1763 if property_cls: +1764 expressions.append(property_cls(this=convert(value))) +1765 else: +1766 expressions.append(Property(this=Literal.string(key), value=convert(value))) 1767 -1768 -1769# https://www.ibm.com/docs/en/ias?topic=procedures-return-statement-in-sql -1770class Return(Expression): -1771 pass -1772 +1768 return cls(expressions=expressions) +1769 +1770 +1771class Qualify(Expression): +1772 pass 1773 -1774class Reference(Expression): -1775 arg_types = {"this": True, "expressions": False, "options": False} -1776 -1777 -1778class Tuple(Expression): -1779 arg_types = {"expressions": False} -1780 -1781 -1782class Subqueryable(Unionable): -1783 def subquery(self, alias=None, copy=True) -> Subquery: -1784 """ -1785 Convert this expression to an aliased expression that can be used as a Subquery. +1774 +1775# https://www.ibm.com/docs/en/ias?topic=procedures-return-statement-in-sql +1776class Return(Expression): +1777 pass +1778 +1779 +1780class Reference(Expression): +1781 arg_types = {"this": True, "expressions": False, "options": False} +1782 +1783 +1784class Tuple(Expression): +1785 arg_types = {"expressions": False} 1786 -1787 Example: -1788 >>> subquery = Select().select("x").from_("tbl").subquery() -1789 >>> Select().select("x").from_(subquery).sql() -1790 'SELECT x FROM (SELECT x FROM tbl)' -1791 -1792 Args: -1793 alias (str | Identifier): an optional alias for the subquery -1794 copy (bool): if `False`, modify this expression instance in-place. -1795 -1796 Returns: -1797 Alias: the subquery -1798 """ -1799 instance = _maybe_copy(self, copy) -1800 return Subquery( -1801 this=instance, -1802 alias=TableAlias(this=to_identifier(alias)) if alias else None, -1803 ) -1804 -1805 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: -1806 raise NotImplementedError -1807 -1808 @property -1809 def ctes(self): -1810 with_ = self.args.get("with") -1811 if not with_: -1812 return [] -1813 return with_.expressions -1814 -1815 @property -1816 def selects(self): -1817 raise NotImplementedError("Subqueryable objects must implement `selects`") -1818 -1819 @property -1820 def named_selects(self): -1821 raise NotImplementedError("Subqueryable objects must implement `named_selects`") -1822 -1823 def with_( -1824 self, -1825 alias, -1826 as_, -1827 recursive=None, -1828 append=True, -1829 dialect=None, -1830 copy=True, -1831 **opts, -1832 ): -1833 """ -1834 Append to or set the common table expressions. -1835 -1836 Example: -1837 >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql() -1838 'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2' -1839 -1840 Args: -1841 alias (str | Expression): the SQL code string to parse as the table name. -1842 If an `Expression` instance is passed, this is used as-is. -1843 as_ (str | Expression): the SQL code string to parse as the table expression. -1844 If an `Expression` instance is passed, it will be used as-is. -1845 recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`. -1846 append (bool): if `True`, add to any existing expressions. -1847 Otherwise, this resets the expressions. -1848 dialect (str): the dialect used to parse the input expression. -1849 copy (bool): if `False`, modify this expression instance in-place. -1850 opts (kwargs): other options to use to parse the input expressions. -1851 -1852 Returns: -1853 Select: the modified expression. -1854 """ -1855 alias_expression = maybe_parse( -1856 alias, -1857 dialect=dialect, -1858 into=TableAlias, -1859 **opts, -1860 ) -1861 as_expression = maybe_parse( -1862 as_, +1787 +1788class Subqueryable(Unionable): +1789 def subquery(self, alias=None, copy=True) -> Subquery: +1790 """ +1791 Convert this expression to an aliased expression that can be used as a Subquery. +1792 +1793 Example: +1794 >>> subquery = Select().select("x").from_("tbl").subquery() +1795 >>> Select().select("x").from_(subquery).sql() +1796 'SELECT x FROM (SELECT x FROM tbl)' +1797 +1798 Args: +1799 alias (str | Identifier): an optional alias for the subquery +1800 copy (bool): if `False`, modify this expression instance in-place. +1801 +1802 Returns: +1803 Alias: the subquery +1804 """ +1805 instance = _maybe_copy(self, copy) +1806 return Subquery( +1807 this=instance, +1808 alias=TableAlias(this=to_identifier(alias)) if alias else None, +1809 ) +1810 +1811 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: +1812 raise NotImplementedError +1813 +1814 @property +1815 def ctes(self): +1816 with_ = self.args.get("with") +1817 if not with_: +1818 return [] +1819 return with_.expressions +1820 +1821 @property +1822 def selects(self): +1823 raise NotImplementedError("Subqueryable objects must implement `selects`") +1824 +1825 @property +1826 def named_selects(self): +1827 raise NotImplementedError("Subqueryable objects must implement `named_selects`") +1828 +1829 def with_( +1830 self, +1831 alias, +1832 as_, +1833 recursive=None, +1834 append=True, +1835 dialect=None, +1836 copy=True, +1837 **opts, +1838 ): +1839 """ +1840 Append to or set the common table expressions. +1841 +1842 Example: +1843 >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql() +1844 'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2' +1845 +1846 Args: +1847 alias (str | Expression): the SQL code string to parse as the table name. +1848 If an `Expression` instance is passed, this is used as-is. +1849 as_ (str | Expression): the SQL code string to parse as the table expression. +1850 If an `Expression` instance is passed, it will be used as-is. +1851 recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`. +1852 append (bool): if `True`, add to any existing expressions. +1853 Otherwise, this resets the expressions. +1854 dialect (str): the dialect used to parse the input expression. +1855 copy (bool): if `False`, modify this expression instance in-place. +1856 opts (kwargs): other options to use to parse the input expressions. +1857 +1858 Returns: +1859 Select: the modified expression. +1860 """ +1861 alias_expression = maybe_parse( +1862 alias, 1863 dialect=dialect, -1864 **opts, -1865 ) -1866 cte = CTE( -1867 this=as_expression, -1868 alias=alias_expression, -1869 ) -1870 return _apply_child_list_builder( -1871 cte, -1872 instance=self, -1873 arg="with", -1874 append=append, -1875 copy=copy, -1876 into=With, -1877 properties={"recursive": recursive or False}, -1878 ) -1879 -1880 -1881QUERY_MODIFIERS = { -1882 "match": False, -1883 "laterals": False, -1884 "joins": False, -1885 "pivots": False, -1886 "where": False, -1887 "group": False, -1888 "having": False, -1889 "qualify": False, -1890 "windows": False, -1891 "distribute": False, -1892 "sort": False, -1893 "cluster": False, -1894 "order": False, -1895 "limit": False, -1896 "offset": False, -1897 "lock": False, -1898 "sample": False, -1899} -1900 -1901 -1902class Table(Expression): -1903 arg_types = { -1904 "this": True, -1905 "alias": False, -1906 "db": False, -1907 "catalog": False, -1908 "laterals": False, -1909 "joins": False, -1910 "pivots": False, -1911 "hints": False, -1912 "system_time": False, -1913 } -1914 -1915 @property -1916 def db(self) -> str: -1917 return self.text("db") -1918 -1919 @property -1920 def catalog(self) -> str: -1921 return self.text("catalog") -1922 -1923 -1924# See the TSQL "Querying data in a system-versioned temporal table" page -1925class SystemTime(Expression): -1926 arg_types = { -1927 "this": False, -1928 "expression": False, -1929 "kind": True, -1930 } -1931 -1932 -1933class Union(Subqueryable): -1934 arg_types = { -1935 "with": False, -1936 "this": True, -1937 "expression": True, -1938 "distinct": False, -1939 **QUERY_MODIFIERS, -1940 } -1941 -1942 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: -1943 """ -1944 Set the LIMIT expression. -1945 -1946 Example: -1947 >>> select("1").union(select("1")).limit(1).sql() -1948 'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1' -1949 -1950 Args: -1951 expression (str | int | Expression): the SQL code string to parse. -1952 This can also be an integer. -1953 If a `Limit` instance is passed, this is used as-is. -1954 If another `Expression` instance is passed, it will be wrapped in a `Limit`. -1955 dialect (str): the dialect used to parse the input expression. -1956 copy (bool): if `False`, modify this expression instance in-place. -1957 opts (kwargs): other options to use to parse the input expressions. -1958 -1959 Returns: -1960 Select: The limited subqueryable. -1961 """ -1962 return ( -1963 select("*") -1964 .from_(self.subquery(alias="_l_0", copy=copy)) -1965 .limit(expression, dialect=dialect, copy=False, **opts) -1966 ) -1967 -1968 def select( -1969 self, -1970 *expressions: ExpOrStr, -1971 append: bool = True, -1972 dialect: DialectType = None, -1973 copy: bool = True, -1974 **opts, -1975 ) -> Union: -1976 """Append to or set the SELECT of the union recursively. -1977 -1978 Example: -1979 >>> from sqlglot import parse_one -1980 >>> parse_one("select a from x union select a from y union select a from z").select("b").sql() -1981 'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z' -1982 -1983 Args: -1984 *expressions: the SQL code strings to parse. -1985 If an `Expression` instance is passed, it will be used as-is. -1986 append: if `True`, add to any existing expressions. -1987 Otherwise, this resets the expressions. -1988 dialect: the dialect used to parse the input expressions. -1989 copy: if `False`, modify this expression instance in-place. -1990 opts: other options to use to parse the input expressions. -1991 -1992 Returns: -1993 Union: the modified expression. -1994 """ -1995 this = self.copy() if copy else self -1996 this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts) -1997 this.expression.unnest().select( -1998 *expressions, append=append, dialect=dialect, copy=False, **opts -1999 ) -2000 return this -2001 -2002 @property -2003 def named_selects(self): -2004 return self.this.unnest().named_selects -2005 -2006 @property -2007 def is_star(self) -> bool: -2008 return self.this.is_star or self.expression.is_star -2009 -2010 @property -2011 def selects(self): -2012 return self.this.unnest().selects -2013 -2014 @property -2015 def left(self): -2016 return self.this -2017 -2018 @property -2019 def right(self): -2020 return self.expression -2021 -2022 -2023class Except(Union): -2024 pass -2025 -2026 -2027class Intersect(Union): -2028 pass -2029 -2030 -2031class Unnest(UDTF): -2032 arg_types = { -2033 "expressions": True, -2034 "ordinality": False, -2035 "alias": False, -2036 "offset": False, -2037 } -2038 -2039 -2040class Update(Expression): -2041 arg_types = { -2042 "with": False, -2043 "this": False, -2044 "expressions": True, -2045 "from": False, -2046 "where": False, -2047 "returning": False, -2048 } -2049 -2050 -2051class Values(UDTF): -2052 arg_types = { -2053 "expressions": True, -2054 "ordinality": False, -2055 "alias": False, -2056 } -2057 -2058 -2059class Var(Expression): -2060 pass -2061 -2062 -2063class Schema(Expression): -2064 arg_types = {"this": False, "expressions": False} -2065 -2066 -2067# Used to represent the FOR UPDATE and FOR SHARE locking read types. -2068# https://dev.mysql.com/doc/refman/8.0/en/innodb-locking-reads.html -2069class Lock(Expression): -2070 arg_types = {"update": True} +1864 into=TableAlias, +1865 **opts, +1866 ) +1867 as_expression = maybe_parse( +1868 as_, +1869 dialect=dialect, +1870 **opts, +1871 ) +1872 cte = CTE( +1873 this=as_expression, +1874 alias=alias_expression, +1875 ) +1876 return _apply_child_list_builder( +1877 cte, +1878 instance=self, +1879 arg="with", +1880 append=append, +1881 copy=copy, +1882 into=With, +1883 properties={"recursive": recursive or False}, +1884 ) +1885 +1886 +1887QUERY_MODIFIERS = { +1888 "match": False, +1889 "laterals": False, +1890 "joins": False, +1891 "pivots": False, +1892 "where": False, +1893 "group": False, +1894 "having": False, +1895 "qualify": False, +1896 "windows": False, +1897 "distribute": False, +1898 "sort": False, +1899 "cluster": False, +1900 "order": False, +1901 "limit": False, +1902 "offset": False, +1903 "lock": False, +1904 "sample": False, +1905} +1906 +1907 +1908class Table(Expression): +1909 arg_types = { +1910 "this": True, +1911 "alias": False, +1912 "db": False, +1913 "catalog": False, +1914 "laterals": False, +1915 "joins": False, +1916 "pivots": False, +1917 "hints": False, +1918 "system_time": False, +1919 } +1920 +1921 @property +1922 def db(self) -> str: +1923 return self.text("db") +1924 +1925 @property +1926 def catalog(self) -> str: +1927 return self.text("catalog") +1928 +1929 +1930# See the TSQL "Querying data in a system-versioned temporal table" page +1931class SystemTime(Expression): +1932 arg_types = { +1933 "this": False, +1934 "expression": False, +1935 "kind": True, +1936 } +1937 +1938 +1939class Union(Subqueryable): +1940 arg_types = { +1941 "with": False, +1942 "this": True, +1943 "expression": True, +1944 "distinct": False, +1945 **QUERY_MODIFIERS, +1946 } +1947 +1948 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: +1949 """ +1950 Set the LIMIT expression. +1951 +1952 Example: +1953 >>> select("1").union(select("1")).limit(1).sql() +1954 'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1' +1955 +1956 Args: +1957 expression (str | int | Expression): the SQL code string to parse. +1958 This can also be an integer. +1959 If a `Limit` instance is passed, this is used as-is. +1960 If another `Expression` instance is passed, it will be wrapped in a `Limit`. +1961 dialect (str): the dialect used to parse the input expression. +1962 copy (bool): if `False`, modify this expression instance in-place. +1963 opts (kwargs): other options to use to parse the input expressions. +1964 +1965 Returns: +1966 Select: The limited subqueryable. +1967 """ +1968 return ( +1969 select("*") +1970 .from_(self.subquery(alias="_l_0", copy=copy)) +1971 .limit(expression, dialect=dialect, copy=False, **opts) +1972 ) +1973 +1974 def select( +1975 self, +1976 *expressions: ExpOrStr, +1977 append: bool = True, +1978 dialect: DialectType = None, +1979 copy: bool = True, +1980 **opts, +1981 ) -> Union: +1982 """Append to or set the SELECT of the union recursively. +1983 +1984 Example: +1985 >>> from sqlglot import parse_one +1986 >>> parse_one("select a from x union select a from y union select a from z").select("b").sql() +1987 'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z' +1988 +1989 Args: +1990 *expressions: the SQL code strings to parse. +1991 If an `Expression` instance is passed, it will be used as-is. +1992 append: if `True`, add to any existing expressions. +1993 Otherwise, this resets the expressions. +1994 dialect: the dialect used to parse the input expressions. +1995 copy: if `False`, modify this expression instance in-place. +1996 opts: other options to use to parse the input expressions. +1997 +1998 Returns: +1999 Union: the modified expression. +2000 """ +2001 this = self.copy() if copy else self +2002 this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts) +2003 this.expression.unnest().select( +2004 *expressions, append=append, dialect=dialect, copy=False, **opts +2005 ) +2006 return this +2007 +2008 @property +2009 def named_selects(self): +2010 return self.this.unnest().named_selects +2011 +2012 @property +2013 def is_star(self) -> bool: +2014 return self.this.is_star or self.expression.is_star +2015 +2016 @property +2017 def selects(self): +2018 return self.this.unnest().selects +2019 +2020 @property +2021 def left(self): +2022 return self.this +2023 +2024 @property +2025 def right(self): +2026 return self.expression +2027 +2028 +2029class Except(Union): +2030 pass +2031 +2032 +2033class Intersect(Union): +2034 pass +2035 +2036 +2037class Unnest(UDTF): +2038 arg_types = { +2039 "expressions": True, +2040 "ordinality": False, +2041 "alias": False, +2042 "offset": False, +2043 } +2044 +2045 +2046class Update(Expression): +2047 arg_types = { +2048 "with": False, +2049 "this": False, +2050 "expressions": True, +2051 "from": False, +2052 "where": False, +2053 "returning": False, +2054 } +2055 +2056 +2057class Values(UDTF): +2058 arg_types = { +2059 "expressions": True, +2060 "ordinality": False, +2061 "alias": False, +2062 } +2063 +2064 +2065class Var(Expression): +2066 pass +2067 +2068 +2069class Schema(Expression): +2070 arg_types = {"this": False, "expressions": False} 2071 2072 -2073class Select(Subqueryable): -2074 arg_types = { -2075 "with": False, -2076 "kind": False, -2077 "expressions": False, -2078 "hint": False, -2079 "distinct": False, -2080 "into": False, -2081 "from": False, -2082 **QUERY_MODIFIERS, -2083 } -2084 -2085 def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2086 """ -2087 Set the FROM expression. -2088 -2089 Example: -2090 >>> Select().from_("tbl").select("x").sql() -2091 'SELECT x FROM tbl' -2092 -2093 Args: -2094 *expressions (str | Expression): the SQL code strings to parse. -2095 If a `From` instance is passed, this is used as-is. -2096 If another `Expression` instance is passed, it will be wrapped in a `From`. -2097 append (bool): if `True`, add to any existing expressions. -2098 Otherwise, this flattens all the `From` expression into a single expression. -2099 dialect (str): the dialect used to parse the input expression. -2100 copy (bool): if `False`, modify this expression instance in-place. -2101 opts (kwargs): other options to use to parse the input expressions. -2102 -2103 Returns: -2104 Select: the modified expression. -2105 """ -2106 return _apply_child_list_builder( -2107 *expressions, -2108 instance=self, -2109 arg="from", -2110 append=append, -2111 copy=copy, -2112 prefix="FROM", -2113 into=From, -2114 dialect=dialect, -2115 **opts, -2116 ) -2117 -2118 def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2119 """ -2120 Set the GROUP BY expression. -2121 -2122 Example: -2123 >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql() -2124 'SELECT x, COUNT(1) FROM tbl GROUP BY x' -2125 -2126 Args: -2127 *expressions (str | Expression): the SQL code strings to parse. -2128 If a `Group` instance is passed, this is used as-is. -2129 If another `Expression` instance is passed, it will be wrapped in a `Group`. -2130 If nothing is passed in then a group by is not applied to the expression -2131 append (bool): if `True`, add to any existing expressions. -2132 Otherwise, this flattens all the `Group` expression into a single expression. -2133 dialect (str): the dialect used to parse the input expression. -2134 copy (bool): if `False`, modify this expression instance in-place. -2135 opts (kwargs): other options to use to parse the input expressions. -2136 -2137 Returns: -2138 Select: the modified expression. -2139 """ -2140 if not expressions: -2141 return self if not copy else self.copy() -2142 return _apply_child_list_builder( -2143 *expressions, -2144 instance=self, -2145 arg="group", -2146 append=append, -2147 copy=copy, -2148 prefix="GROUP BY", -2149 into=Group, -2150 dialect=dialect, -2151 **opts, -2152 ) -2153 -2154 def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2155 """ -2156 Set the ORDER BY expression. -2157 -2158 Example: -2159 >>> Select().from_("tbl").select("x").order_by("x DESC").sql() -2160 'SELECT x FROM tbl ORDER BY x DESC' -2161 -2162 Args: -2163 *expressions (str | Expression): the SQL code strings to parse. -2164 If a `Group` instance is passed, this is used as-is. -2165 If another `Expression` instance is passed, it will be wrapped in a `Order`. -2166 append (bool): if `True`, add to any existing expressions. -2167 Otherwise, this flattens all the `Order` expression into a single expression. -2168 dialect (str): the dialect used to parse the input expression. -2169 copy (bool): if `False`, modify this expression instance in-place. -2170 opts (kwargs): other options to use to parse the input expressions. -2171 -2172 Returns: -2173 Select: the modified expression. -2174 """ -2175 return _apply_child_list_builder( -2176 *expressions, -2177 instance=self, -2178 arg="order", -2179 append=append, -2180 copy=copy, -2181 prefix="ORDER BY", -2182 into=Order, -2183 dialect=dialect, -2184 **opts, -2185 ) -2186 -2187 def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2188 """ -2189 Set the SORT BY expression. -2190 -2191 Example: -2192 >>> Select().from_("tbl").select("x").sort_by("x DESC").sql() -2193 'SELECT x FROM tbl SORT BY x DESC' -2194 -2195 Args: -2196 *expressions (str | Expression): the SQL code strings to parse. -2197 If a `Group` instance is passed, this is used as-is. -2198 If another `Expression` instance is passed, it will be wrapped in a `SORT`. -2199 append (bool): if `True`, add to any existing expressions. -2200 Otherwise, this flattens all the `Order` expression into a single expression. -2201 dialect (str): the dialect used to parse the input expression. -2202 copy (bool): if `False`, modify this expression instance in-place. -2203 opts (kwargs): other options to use to parse the input expressions. -2204 -2205 Returns: -2206 Select: the modified expression. -2207 """ -2208 return _apply_child_list_builder( -2209 *expressions, -2210 instance=self, -2211 arg="sort", -2212 append=append, -2213 copy=copy, -2214 prefix="SORT BY", -2215 into=Sort, -2216 dialect=dialect, -2217 **opts, -2218 ) -2219 -2220 def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2221 """ -2222 Set the CLUSTER BY expression. -2223 -2224 Example: -2225 >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql() -2226 'SELECT x FROM tbl CLUSTER BY x DESC' -2227 -2228 Args: -2229 *expressions (str | Expression): the SQL code strings to parse. -2230 If a `Group` instance is passed, this is used as-is. -2231 If another `Expression` instance is passed, it will be wrapped in a `Cluster`. -2232 append (bool): if `True`, add to any existing expressions. -2233 Otherwise, this flattens all the `Order` expression into a single expression. -2234 dialect (str): the dialect used to parse the input expression. -2235 copy (bool): if `False`, modify this expression instance in-place. -2236 opts (kwargs): other options to use to parse the input expressions. -2237 -2238 Returns: -2239 Select: the modified expression. -2240 """ -2241 return _apply_child_list_builder( -2242 *expressions, -2243 instance=self, -2244 arg="cluster", -2245 append=append, -2246 copy=copy, -2247 prefix="CLUSTER BY", -2248 into=Cluster, -2249 dialect=dialect, -2250 **opts, -2251 ) -2252 -2253 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: -2254 """ -2255 Set the LIMIT expression. -2256 -2257 Example: -2258 >>> Select().from_("tbl").select("x").limit(10).sql() -2259 'SELECT x FROM tbl LIMIT 10' -2260 -2261 Args: -2262 expression (str | int | Expression): the SQL code string to parse. -2263 This can also be an integer. -2264 If a `Limit` instance is passed, this is used as-is. -2265 If another `Expression` instance is passed, it will be wrapped in a `Limit`. -2266 dialect (str): the dialect used to parse the input expression. -2267 copy (bool): if `False`, modify this expression instance in-place. -2268 opts (kwargs): other options to use to parse the input expressions. -2269 -2270 Returns: -2271 Select: the modified expression. -2272 """ -2273 return _apply_builder( -2274 expression=expression, -2275 instance=self, -2276 arg="limit", -2277 into=Limit, -2278 prefix="LIMIT", -2279 dialect=dialect, -2280 copy=copy, -2281 **opts, -2282 ) -2283 -2284 def offset(self, expression, dialect=None, copy=True, **opts) -> Select: -2285 """ -2286 Set the OFFSET expression. -2287 -2288 Example: -2289 >>> Select().from_("tbl").select("x").offset(10).sql() -2290 'SELECT x FROM tbl OFFSET 10' -2291 -2292 Args: -2293 expression (str | int | Expression): the SQL code string to parse. -2294 This can also be an integer. -2295 If a `Offset` instance is passed, this is used as-is. -2296 If another `Expression` instance is passed, it will be wrapped in a `Offset`. -2297 dialect (str): the dialect used to parse the input expression. -2298 copy (bool): if `False`, modify this expression instance in-place. -2299 opts (kwargs): other options to use to parse the input expressions. -2300 -2301 Returns: -2302 Select: the modified expression. -2303 """ -2304 return _apply_builder( -2305 expression=expression, -2306 instance=self, -2307 arg="offset", -2308 into=Offset, -2309 prefix="OFFSET", -2310 dialect=dialect, -2311 copy=copy, -2312 **opts, -2313 ) -2314 -2315 def select( -2316 self, -2317 *expressions: ExpOrStr, -2318 append: bool = True, -2319 dialect: DialectType = None, -2320 copy: bool = True, -2321 **opts, -2322 ) -> Select: -2323 """ -2324 Append to or set the SELECT expressions. -2325 -2326 Example: -2327 >>> Select().select("x", "y").sql() -2328 'SELECT x, y' -2329 -2330 Args: -2331 *expressions: the SQL code strings to parse. -2332 If an `Expression` instance is passed, it will be used as-is. -2333 append: if `True`, add to any existing expressions. -2334 Otherwise, this resets the expressions. -2335 dialect: the dialect used to parse the input expressions. -2336 copy: if `False`, modify this expression instance in-place. -2337 opts: other options to use to parse the input expressions. -2338 -2339 Returns: -2340 Select: the modified expression. -2341 """ -2342 return _apply_list_builder( -2343 *expressions, -2344 instance=self, -2345 arg="expressions", -2346 append=append, -2347 dialect=dialect, -2348 copy=copy, -2349 **opts, -2350 ) -2351 -2352 def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2353 """ -2354 Append to or set the LATERAL expressions. -2355 -2356 Example: -2357 >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql() -2358 'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z' -2359 -2360 Args: -2361 *expressions (str | Expression): the SQL code strings to parse. -2362 If an `Expression` instance is passed, it will be used as-is. -2363 append (bool): if `True`, add to any existing expressions. -2364 Otherwise, this resets the expressions. -2365 dialect (str): the dialect used to parse the input expressions. -2366 copy (bool): if `False`, modify this expression instance in-place. -2367 opts (kwargs): other options to use to parse the input expressions. -2368 -2369 Returns: -2370 Select: the modified expression. -2371 """ -2372 return _apply_list_builder( -2373 *expressions, -2374 instance=self, -2375 arg="laterals", -2376 append=append, -2377 into=Lateral, -2378 prefix="LATERAL VIEW", -2379 dialect=dialect, -2380 copy=copy, -2381 **opts, -2382 ) -2383 -2384 def join( -2385 self, -2386 expression, -2387 on=None, -2388 using=None, -2389 append=True, -2390 join_type=None, -2391 join_alias=None, -2392 dialect=None, -2393 copy=True, -2394 **opts, -2395 ) -> Select: -2396 """ -2397 Append to or set the JOIN expressions. -2398 -2399 Example: -2400 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql() -2401 'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y' -2402 -2403 >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql() -2404 'SELECT 1 FROM a JOIN b USING (x, y, z)' -2405 -2406 Use `join_type` to change the type of join: -2407 -2408 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql() -2409 'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y' -2410 -2411 Args: -2412 expression (str | Expression): the SQL code string to parse. -2413 If an `Expression` instance is passed, it will be used as-is. -2414 on (str | Expression): optionally specify the join "on" criteria as a SQL string. -2415 If an `Expression` instance is passed, it will be used as-is. -2416 using (str | Expression): optionally specify the join "using" criteria as a SQL string. -2417 If an `Expression` instance is passed, it will be used as-is. -2418 append (bool): if `True`, add to any existing expressions. -2419 Otherwise, this resets the expressions. -2420 join_type (str): If set, alter the parsed join type -2421 dialect (str): the dialect used to parse the input expressions. -2422 copy (bool): if `False`, modify this expression instance in-place. -2423 opts (kwargs): other options to use to parse the input expressions. -2424 -2425 Returns: -2426 Select: the modified expression. -2427 """ -2428 parse_args = {"dialect": dialect, **opts} -2429 -2430 try: -2431 expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args) -2432 except ParseError: -2433 expression = maybe_parse(expression, into=(Join, Expression), **parse_args) -2434 -2435 join = expression if isinstance(expression, Join) else Join(this=expression) -2436 -2437 if isinstance(join.this, Select): -2438 join.this.replace(join.this.subquery()) -2439 -2440 if join_type: -2441 natural: t.Optional[Token] -2442 side: t.Optional[Token] -2443 kind: t.Optional[Token] -2444 -2445 natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args) # type: ignore -2446 -2447 if natural: -2448 join.set("natural", True) -2449 if side: -2450 join.set("side", side.text) -2451 if kind: -2452 join.set("kind", kind.text) -2453 -2454 if on: -2455 on = and_(*ensure_collection(on), dialect=dialect, **opts) -2456 join.set("on", on) -2457 -2458 if using: -2459 join = _apply_list_builder( -2460 *ensure_collection(using), -2461 instance=join, -2462 arg="using", -2463 append=append, -2464 copy=copy, -2465 **opts, -2466 ) -2467 -2468 if join_alias: -2469 join.set("this", alias_(join.this, join_alias, table=True)) -2470 return _apply_list_builder( -2471 join, -2472 instance=self, -2473 arg="joins", -2474 append=append, -2475 copy=copy, -2476 **opts, -2477 ) -2478 -2479 def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2480 """ -2481 Append to or set the WHERE expressions. -2482 -2483 Example: -2484 >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql() -2485 "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'" -2486 -2487 Args: -2488 *expressions (str | Expression): the SQL code strings to parse. -2489 If an `Expression` instance is passed, it will be used as-is. -2490 Multiple expressions are combined with an AND operator. -2491 append (bool): if `True`, AND the new expressions to any existing expression. -2492 Otherwise, this resets the expression. -2493 dialect (str): the dialect used to parse the input expressions. -2494 copy (bool): if `False`, modify this expression instance in-place. -2495 opts (kwargs): other options to use to parse the input expressions. -2496 -2497 Returns: -2498 Select: the modified expression. -2499 """ -2500 return _apply_conjunction_builder( -2501 *expressions, -2502 instance=self, -2503 arg="where", -2504 append=append, -2505 into=Where, -2506 dialect=dialect, -2507 copy=copy, -2508 **opts, -2509 ) -2510 -2511 def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2512 """ -2513 Append to or set the HAVING expressions. -2514 -2515 Example: -2516 >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql() -2517 'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3' -2518 -2519 Args: -2520 *expressions (str | Expression): the SQL code strings to parse. -2521 If an `Expression` instance is passed, it will be used as-is. -2522 Multiple expressions are combined with an AND operator. -2523 append (bool): if `True`, AND the new expressions to any existing expression. -2524 Otherwise, this resets the expression. -2525 dialect (str): the dialect used to parse the input expressions. -2526 copy (bool): if `False`, modify this expression instance in-place. -2527 opts (kwargs): other options to use to parse the input expressions. -2528 -2529 Returns: -2530 Select: the modified expression. -2531 """ -2532 return _apply_conjunction_builder( -2533 *expressions, -2534 instance=self, -2535 arg="having", -2536 append=append, -2537 into=Having, -2538 dialect=dialect, -2539 copy=copy, -2540 **opts, -2541 ) -2542 -2543 def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2544 return _apply_list_builder( -2545 *expressions, -2546 instance=self, -2547 arg="windows", -2548 append=append, -2549 into=Window, -2550 dialect=dialect, -2551 copy=copy, -2552 **opts, -2553 ) -2554 -2555 def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2556 return _apply_conjunction_builder( -2557 *expressions, -2558 instance=self, -2559 arg="qualify", -2560 append=append, -2561 into=Qualify, -2562 dialect=dialect, -2563 copy=copy, -2564 **opts, -2565 ) -2566 -2567 def distinct(self, distinct=True, copy=True) -> Select: -2568 """ -2569 Set the OFFSET expression. -2570 -2571 Example: -2572 >>> Select().from_("tbl").select("x").distinct().sql() -2573 'SELECT DISTINCT x FROM tbl' -2574 -2575 Args: -2576 distinct (bool): whether the Select should be distinct -2577 copy (bool): if `False`, modify this expression instance in-place. -2578 -2579 Returns: -2580 Select: the modified expression. -2581 """ -2582 instance = _maybe_copy(self, copy) -2583 instance.set("distinct", Distinct() if distinct else None) -2584 return instance -2585 -2586 def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create: -2587 """ -2588 Convert this expression to a CREATE TABLE AS statement. -2589 -2590 Example: -2591 >>> Select().select("*").from_("tbl").ctas("x").sql() -2592 'CREATE TABLE x AS SELECT * FROM tbl' -2593 -2594 Args: -2595 table (str | Expression): the SQL code string to parse as the table name. -2596 If another `Expression` instance is passed, it will be used as-is. -2597 properties (dict): an optional mapping of table properties -2598 dialect (str): the dialect used to parse the input table. -2599 copy (bool): if `False`, modify this expression instance in-place. -2600 opts (kwargs): other options to use to parse the input table. -2601 -2602 Returns: -2603 Create: the CREATE TABLE AS expression -2604 """ -2605 instance = _maybe_copy(self, copy) -2606 table_expression = maybe_parse( -2607 table, -2608 into=Table, -2609 dialect=dialect, -2610 **opts, -2611 ) -2612 properties_expression = None -2613 if properties: -2614 properties_expression = Properties.from_dict(properties) -2615 -2616 return Create( -2617 this=table_expression, -2618 kind="table", -2619 expression=instance, -2620 properties=properties_expression, -2621 ) -2622 -2623 def lock(self, update: bool = True, copy: bool = True) -> Select: -2624 """ -2625 Set the locking read mode for this expression. -2626 -2627 Examples: -2628 >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql") -2629 "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE" -2630 -2631 >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql") -2632 "SELECT x FROM tbl WHERE x = 'a' FOR SHARE" -2633 -2634 Args: -2635 update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`. -2636 copy: if `False`, modify this expression instance in-place. -2637 -2638 Returns: -2639 The modified expression. -2640 """ -2641 -2642 inst = _maybe_copy(self, copy) -2643 inst.set("lock", Lock(update=update)) -2644 -2645 return inst -2646 -2647 @property -2648 def named_selects(self) -> t.List[str]: -2649 return [e.output_name for e in self.expressions if e.alias_or_name] +2073# Used to represent the FOR UPDATE and FOR SHARE locking read types. +2074# https://dev.mysql.com/doc/refman/8.0/en/innodb-locking-reads.html +2075class Lock(Expression): +2076 arg_types = {"update": True} +2077 +2078 +2079class Select(Subqueryable): +2080 arg_types = { +2081 "with": False, +2082 "kind": False, +2083 "expressions": False, +2084 "hint": False, +2085 "distinct": False, +2086 "into": False, +2087 "from": False, +2088 **QUERY_MODIFIERS, +2089 } +2090 +2091 def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2092 """ +2093 Set the FROM expression. +2094 +2095 Example: +2096 >>> Select().from_("tbl").select("x").sql() +2097 'SELECT x FROM tbl' +2098 +2099 Args: +2100 *expressions (str | Expression): the SQL code strings to parse. +2101 If a `From` instance is passed, this is used as-is. +2102 If another `Expression` instance is passed, it will be wrapped in a `From`. +2103 append (bool): if `True`, add to any existing expressions. +2104 Otherwise, this flattens all the `From` expression into a single expression. +2105 dialect (str): the dialect used to parse the input expression. +2106 copy (bool): if `False`, modify this expression instance in-place. +2107 opts (kwargs): other options to use to parse the input expressions. +2108 +2109 Returns: +2110 Select: the modified expression. +2111 """ +2112 return _apply_child_list_builder( +2113 *expressions, +2114 instance=self, +2115 arg="from", +2116 append=append, +2117 copy=copy, +2118 prefix="FROM", +2119 into=From, +2120 dialect=dialect, +2121 **opts, +2122 ) +2123 +2124 def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2125 """ +2126 Set the GROUP BY expression. +2127 +2128 Example: +2129 >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql() +2130 'SELECT x, COUNT(1) FROM tbl GROUP BY x' +2131 +2132 Args: +2133 *expressions (str | Expression): the SQL code strings to parse. +2134 If a `Group` instance is passed, this is used as-is. +2135 If another `Expression` instance is passed, it will be wrapped in a `Group`. +2136 If nothing is passed in then a group by is not applied to the expression +2137 append (bool): if `True`, add to any existing expressions. +2138 Otherwise, this flattens all the `Group` expression into a single expression. +2139 dialect (str): the dialect used to parse the input expression. +2140 copy (bool): if `False`, modify this expression instance in-place. +2141 opts (kwargs): other options to use to parse the input expressions. +2142 +2143 Returns: +2144 Select: the modified expression. +2145 """ +2146 if not expressions: +2147 return self if not copy else self.copy() +2148 return _apply_child_list_builder( +2149 *expressions, +2150 instance=self, +2151 arg="group", +2152 append=append, +2153 copy=copy, +2154 prefix="GROUP BY", +2155 into=Group, +2156 dialect=dialect, +2157 **opts, +2158 ) +2159 +2160 def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2161 """ +2162 Set the ORDER BY expression. +2163 +2164 Example: +2165 >>> Select().from_("tbl").select("x").order_by("x DESC").sql() +2166 'SELECT x FROM tbl ORDER BY x DESC' +2167 +2168 Args: +2169 *expressions (str | Expression): the SQL code strings to parse. +2170 If a `Group` instance is passed, this is used as-is. +2171 If another `Expression` instance is passed, it will be wrapped in a `Order`. +2172 append (bool): if `True`, add to any existing expressions. +2173 Otherwise, this flattens all the `Order` expression into a single expression. +2174 dialect (str): the dialect used to parse the input expression. +2175 copy (bool): if `False`, modify this expression instance in-place. +2176 opts (kwargs): other options to use to parse the input expressions. +2177 +2178 Returns: +2179 Select: the modified expression. +2180 """ +2181 return _apply_child_list_builder( +2182 *expressions, +2183 instance=self, +2184 arg="order", +2185 append=append, +2186 copy=copy, +2187 prefix="ORDER BY", +2188 into=Order, +2189 dialect=dialect, +2190 **opts, +2191 ) +2192 +2193 def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2194 """ +2195 Set the SORT BY expression. +2196 +2197 Example: +2198 >>> Select().from_("tbl").select("x").sort_by("x DESC").sql() +2199 'SELECT x FROM tbl SORT BY x DESC' +2200 +2201 Args: +2202 *expressions (str | Expression): the SQL code strings to parse. +2203 If a `Group` instance is passed, this is used as-is. +2204 If another `Expression` instance is passed, it will be wrapped in a `SORT`. +2205 append (bool): if `True`, add to any existing expressions. +2206 Otherwise, this flattens all the `Order` expression into a single expression. +2207 dialect (str): the dialect used to parse the input expression. +2208 copy (bool): if `False`, modify this expression instance in-place. +2209 opts (kwargs): other options to use to parse the input expressions. +2210 +2211 Returns: +2212 Select: the modified expression. +2213 """ +2214 return _apply_child_list_builder( +2215 *expressions, +2216 instance=self, +2217 arg="sort", +2218 append=append, +2219 copy=copy, +2220 prefix="SORT BY", +2221 into=Sort, +2222 dialect=dialect, +2223 **opts, +2224 ) +2225 +2226 def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2227 """ +2228 Set the CLUSTER BY expression. +2229 +2230 Example: +2231 >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql() +2232 'SELECT x FROM tbl CLUSTER BY x DESC' +2233 +2234 Args: +2235 *expressions (str | Expression): the SQL code strings to parse. +2236 If a `Group` instance is passed, this is used as-is. +2237 If another `Expression` instance is passed, it will be wrapped in a `Cluster`. +2238 append (bool): if `True`, add to any existing expressions. +2239 Otherwise, this flattens all the `Order` expression into a single expression. +2240 dialect (str): the dialect used to parse the input expression. +2241 copy (bool): if `False`, modify this expression instance in-place. +2242 opts (kwargs): other options to use to parse the input expressions. +2243 +2244 Returns: +2245 Select: the modified expression. +2246 """ +2247 return _apply_child_list_builder( +2248 *expressions, +2249 instance=self, +2250 arg="cluster", +2251 append=append, +2252 copy=copy, +2253 prefix="CLUSTER BY", +2254 into=Cluster, +2255 dialect=dialect, +2256 **opts, +2257 ) +2258 +2259 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: +2260 """ +2261 Set the LIMIT expression. +2262 +2263 Example: +2264 >>> Select().from_("tbl").select("x").limit(10).sql() +2265 'SELECT x FROM tbl LIMIT 10' +2266 +2267 Args: +2268 expression (str | int | Expression): the SQL code string to parse. +2269 This can also be an integer. +2270 If a `Limit` instance is passed, this is used as-is. +2271 If another `Expression` instance is passed, it will be wrapped in a `Limit`. +2272 dialect (str): the dialect used to parse the input expression. +2273 copy (bool): if `False`, modify this expression instance in-place. +2274 opts (kwargs): other options to use to parse the input expressions. +2275 +2276 Returns: +2277 Select: the modified expression. +2278 """ +2279 return _apply_builder( +2280 expression=expression, +2281 instance=self, +2282 arg="limit", +2283 into=Limit, +2284 prefix="LIMIT", +2285 dialect=dialect, +2286 copy=copy, +2287 **opts, +2288 ) +2289 +2290 def offset(self, expression, dialect=None, copy=True, **opts) -> Select: +2291 """ +2292 Set the OFFSET expression. +2293 +2294 Example: +2295 >>> Select().from_("tbl").select("x").offset(10).sql() +2296 'SELECT x FROM tbl OFFSET 10' +2297 +2298 Args: +2299 expression (str | int | Expression): the SQL code string to parse. +2300 This can also be an integer. +2301 If a `Offset` instance is passed, this is used as-is. +2302 If another `Expression` instance is passed, it will be wrapped in a `Offset`. +2303 dialect (str): the dialect used to parse the input expression. +2304 copy (bool): if `False`, modify this expression instance in-place. +2305 opts (kwargs): other options to use to parse the input expressions. +2306 +2307 Returns: +2308 Select: the modified expression. +2309 """ +2310 return _apply_builder( +2311 expression=expression, +2312 instance=self, +2313 arg="offset", +2314 into=Offset, +2315 prefix="OFFSET", +2316 dialect=dialect, +2317 copy=copy, +2318 **opts, +2319 ) +2320 +2321 def select( +2322 self, +2323 *expressions: ExpOrStr, +2324 append: bool = True, +2325 dialect: DialectType = None, +2326 copy: bool = True, +2327 **opts, +2328 ) -> Select: +2329 """ +2330 Append to or set the SELECT expressions. +2331 +2332 Example: +2333 >>> Select().select("x", "y").sql() +2334 'SELECT x, y' +2335 +2336 Args: +2337 *expressions: the SQL code strings to parse. +2338 If an `Expression` instance is passed, it will be used as-is. +2339 append: if `True`, add to any existing expressions. +2340 Otherwise, this resets the expressions. +2341 dialect: the dialect used to parse the input expressions. +2342 copy: if `False`, modify this expression instance in-place. +2343 opts: other options to use to parse the input expressions. +2344 +2345 Returns: +2346 Select: the modified expression. +2347 """ +2348 return _apply_list_builder( +2349 *expressions, +2350 instance=self, +2351 arg="expressions", +2352 append=append, +2353 dialect=dialect, +2354 copy=copy, +2355 **opts, +2356 ) +2357 +2358 def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2359 """ +2360 Append to or set the LATERAL expressions. +2361 +2362 Example: +2363 >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql() +2364 'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z' +2365 +2366 Args: +2367 *expressions (str | Expression): the SQL code strings to parse. +2368 If an `Expression` instance is passed, it will be used as-is. +2369 append (bool): if `True`, add to any existing expressions. +2370 Otherwise, this resets the expressions. +2371 dialect (str): the dialect used to parse the input expressions. +2372 copy (bool): if `False`, modify this expression instance in-place. +2373 opts (kwargs): other options to use to parse the input expressions. +2374 +2375 Returns: +2376 Select: the modified expression. +2377 """ +2378 return _apply_list_builder( +2379 *expressions, +2380 instance=self, +2381 arg="laterals", +2382 append=append, +2383 into=Lateral, +2384 prefix="LATERAL VIEW", +2385 dialect=dialect, +2386 copy=copy, +2387 **opts, +2388 ) +2389 +2390 def join( +2391 self, +2392 expression, +2393 on=None, +2394 using=None, +2395 append=True, +2396 join_type=None, +2397 join_alias=None, +2398 dialect=None, +2399 copy=True, +2400 **opts, +2401 ) -> Select: +2402 """ +2403 Append to or set the JOIN expressions. +2404 +2405 Example: +2406 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql() +2407 'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y' +2408 +2409 >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql() +2410 'SELECT 1 FROM a JOIN b USING (x, y, z)' +2411 +2412 Use `join_type` to change the type of join: +2413 +2414 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql() +2415 'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y' +2416 +2417 Args: +2418 expression (str | Expression): the SQL code string to parse. +2419 If an `Expression` instance is passed, it will be used as-is. +2420 on (str | Expression): optionally specify the join "on" criteria as a SQL string. +2421 If an `Expression` instance is passed, it will be used as-is. +2422 using (str | Expression): optionally specify the join "using" criteria as a SQL string. +2423 If an `Expression` instance is passed, it will be used as-is. +2424 append (bool): if `True`, add to any existing expressions. +2425 Otherwise, this resets the expressions. +2426 join_type (str): If set, alter the parsed join type +2427 dialect (str): the dialect used to parse the input expressions. +2428 copy (bool): if `False`, modify this expression instance in-place. +2429 opts (kwargs): other options to use to parse the input expressions. +2430 +2431 Returns: +2432 Select: the modified expression. +2433 """ +2434 parse_args = {"dialect": dialect, **opts} +2435 +2436 try: +2437 expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args) +2438 except ParseError: +2439 expression = maybe_parse(expression, into=(Join, Expression), **parse_args) +2440 +2441 join = expression if isinstance(expression, Join) else Join(this=expression) +2442 +2443 if isinstance(join.this, Select): +2444 join.this.replace(join.this.subquery()) +2445 +2446 if join_type: +2447 natural: t.Optional[Token] +2448 side: t.Optional[Token] +2449 kind: t.Optional[Token] +2450 +2451 natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args) # type: ignore +2452 +2453 if natural: +2454 join.set("natural", True) +2455 if side: +2456 join.set("side", side.text) +2457 if kind: +2458 join.set("kind", kind.text) +2459 +2460 if on: +2461 on = and_(*ensure_collection(on), dialect=dialect, **opts) +2462 join.set("on", on) +2463 +2464 if using: +2465 join = _apply_list_builder( +2466 *ensure_collection(using), +2467 instance=join, +2468 arg="using", +2469 append=append, +2470 copy=copy, +2471 **opts, +2472 ) +2473 +2474 if join_alias: +2475 join.set("this", alias_(join.this, join_alias, table=True)) +2476 return _apply_list_builder( +2477 join, +2478 instance=self, +2479 arg="joins", +2480 append=append, +2481 copy=copy, +2482 **opts, +2483 ) +2484 +2485 def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2486 """ +2487 Append to or set the WHERE expressions. +2488 +2489 Example: +2490 >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql() +2491 "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'" +2492 +2493 Args: +2494 *expressions (str | Expression): the SQL code strings to parse. +2495 If an `Expression` instance is passed, it will be used as-is. +2496 Multiple expressions are combined with an AND operator. +2497 append (bool): if `True`, AND the new expressions to any existing expression. +2498 Otherwise, this resets the expression. +2499 dialect (str): the dialect used to parse the input expressions. +2500 copy (bool): if `False`, modify this expression instance in-place. +2501 opts (kwargs): other options to use to parse the input expressions. +2502 +2503 Returns: +2504 Select: the modified expression. +2505 """ +2506 return _apply_conjunction_builder( +2507 *expressions, +2508 instance=self, +2509 arg="where", +2510 append=append, +2511 into=Where, +2512 dialect=dialect, +2513 copy=copy, +2514 **opts, +2515 ) +2516 +2517 def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2518 """ +2519 Append to or set the HAVING expressions. +2520 +2521 Example: +2522 >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql() +2523 'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3' +2524 +2525 Args: +2526 *expressions (str | Expression): the SQL code strings to parse. +2527 If an `Expression` instance is passed, it will be used as-is. +2528 Multiple expressions are combined with an AND operator. +2529 append (bool): if `True`, AND the new expressions to any existing expression. +2530 Otherwise, this resets the expression. +2531 dialect (str): the dialect used to parse the input expressions. +2532 copy (bool): if `False`, modify this expression instance in-place. +2533 opts (kwargs): other options to use to parse the input expressions. +2534 +2535 Returns: +2536 Select: the modified expression. +2537 """ +2538 return _apply_conjunction_builder( +2539 *expressions, +2540 instance=self, +2541 arg="having", +2542 append=append, +2543 into=Having, +2544 dialect=dialect, +2545 copy=copy, +2546 **opts, +2547 ) +2548 +2549 def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2550 return _apply_list_builder( +2551 *expressions, +2552 instance=self, +2553 arg="windows", +2554 append=append, +2555 into=Window, +2556 dialect=dialect, +2557 copy=copy, +2558 **opts, +2559 ) +2560 +2561 def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2562 return _apply_conjunction_builder( +2563 *expressions, +2564 instance=self, +2565 arg="qualify", +2566 append=append, +2567 into=Qualify, +2568 dialect=dialect, +2569 copy=copy, +2570 **opts, +2571 ) +2572 +2573 def distinct(self, distinct=True, copy=True) -> Select: +2574 """ +2575 Set the OFFSET expression. +2576 +2577 Example: +2578 >>> Select().from_("tbl").select("x").distinct().sql() +2579 'SELECT DISTINCT x FROM tbl' +2580 +2581 Args: +2582 distinct (bool): whether the Select should be distinct +2583 copy (bool): if `False`, modify this expression instance in-place. +2584 +2585 Returns: +2586 Select: the modified expression. +2587 """ +2588 instance = _maybe_copy(self, copy) +2589 instance.set("distinct", Distinct() if distinct else None) +2590 return instance +2591 +2592 def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create: +2593 """ +2594 Convert this expression to a CREATE TABLE AS statement. +2595 +2596 Example: +2597 >>> Select().select("*").from_("tbl").ctas("x").sql() +2598 'CREATE TABLE x AS SELECT * FROM tbl' +2599 +2600 Args: +2601 table (str | Expression): the SQL code string to parse as the table name. +2602 If another `Expression` instance is passed, it will be used as-is. +2603 properties (dict): an optional mapping of table properties +2604 dialect (str): the dialect used to parse the input table. +2605 copy (bool): if `False`, modify this expression instance in-place. +2606 opts (kwargs): other options to use to parse the input table. +2607 +2608 Returns: +2609 Create: the CREATE TABLE AS expression +2610 """ +2611 instance = _maybe_copy(self, copy) +2612 table_expression = maybe_parse( +2613 table, +2614 into=Table, +2615 dialect=dialect, +2616 **opts, +2617 ) +2618 properties_expression = None +2619 if properties: +2620 properties_expression = Properties.from_dict(properties) +2621 +2622 return Create( +2623 this=table_expression, +2624 kind="table", +2625 expression=instance, +2626 properties=properties_expression, +2627 ) +2628 +2629 def lock(self, update: bool = True, copy: bool = True) -> Select: +2630 """ +2631 Set the locking read mode for this expression. +2632 +2633 Examples: +2634 >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql") +2635 "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE" +2636 +2637 >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql") +2638 "SELECT x FROM tbl WHERE x = 'a' FOR SHARE" +2639 +2640 Args: +2641 update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`. +2642 copy: if `False`, modify this expression instance in-place. +2643 +2644 Returns: +2645 The modified expression. +2646 """ +2647 +2648 inst = _maybe_copy(self, copy) +2649 inst.set("lock", Lock(update=update)) 2650 -2651 @property -2652 def is_star(self) -> bool: -2653 return any(expression.is_star for expression in self.expressions) -2654 -2655 @property -2656 def selects(self) -> t.List[Expression]: -2657 return self.expressions -2658 -2659 -2660class Subquery(DerivedTable, Unionable): -2661 arg_types = { -2662 "this": True, -2663 "alias": False, -2664 "with": False, -2665 **QUERY_MODIFIERS, -2666 } -2667 -2668 def unnest(self): -2669 """ -2670 Returns the first non subquery. -2671 """ -2672 expression = self -2673 while isinstance(expression, Subquery): -2674 expression = expression.this -2675 return expression -2676 -2677 @property -2678 def is_star(self) -> bool: -2679 return self.this.is_star -2680 -2681 @property -2682 def output_name(self): -2683 return self.alias -2684 -2685 -2686class TableSample(Expression): -2687 arg_types = { -2688 "this": False, -2689 "method": False, -2690 "bucket_numerator": False, -2691 "bucket_denominator": False, -2692 "bucket_field": False, -2693 "percent": False, -2694 "rows": False, -2695 "size": False, -2696 "seed": False, -2697 "kind": False, -2698 } -2699 -2700 -2701class Tag(Expression): -2702 """Tags are used for generating arbitrary sql like SELECT <span>x</span>.""" -2703 -2704 arg_types = { -2705 "this": False, -2706 "prefix": False, -2707 "postfix": False, -2708 } +2651 return inst +2652 +2653 @property +2654 def named_selects(self) -> t.List[str]: +2655 return [e.output_name for e in self.expressions if e.alias_or_name] +2656 +2657 @property +2658 def is_star(self) -> bool: +2659 return any(expression.is_star for expression in self.expressions) +2660 +2661 @property +2662 def selects(self) -> t.List[Expression]: +2663 return self.expressions +2664 +2665 +2666class Subquery(DerivedTable, Unionable): +2667 arg_types = { +2668 "this": True, +2669 "alias": False, +2670 "with": False, +2671 **QUERY_MODIFIERS, +2672 } +2673 +2674 def unnest(self): +2675 """ +2676 Returns the first non subquery. +2677 """ +2678 expression = self +2679 while isinstance(expression, Subquery): +2680 expression = expression.this +2681 return expression +2682 +2683 @property +2684 def is_star(self) -> bool: +2685 return self.this.is_star +2686 +2687 @property +2688 def output_name(self): +2689 return self.alias +2690 +2691 +2692class TableSample(Expression): +2693 arg_types = { +2694 "this": False, +2695 "method": False, +2696 "bucket_numerator": False, +2697 "bucket_denominator": False, +2698 "bucket_field": False, +2699 "percent": False, +2700 "rows": False, +2701 "size": False, +2702 "seed": False, +2703 "kind": False, +2704 } +2705 +2706 +2707class Tag(Expression): +2708 """Tags are used for generating arbitrary sql like SELECT <span>x</span>.""" 2709 -2710 -2711class Pivot(Expression): -2712 arg_types = { -2713 "this": False, -2714 "alias": False, -2715 "expressions": True, -2716 "field": True, -2717 "unpivot": True, -2718 } -2719 -2720 -2721class Window(Expression): -2722 arg_types = { -2723 "this": True, -2724 "partition_by": False, -2725 "order": False, -2726 "spec": False, -2727 "alias": False, -2728 } -2729 -2730 -2731class WindowSpec(Expression): -2732 arg_types = { -2733 "kind": False, -2734 "start": False, -2735 "start_side": False, -2736 "end": False, -2737 "end_side": False, -2738 } -2739 -2740 -2741class Where(Expression): -2742 pass -2743 -2744 -2745class Star(Expression): -2746 arg_types = {"except": False, "replace": False} -2747 -2748 @property -2749 def name(self) -> str: -2750 return "*" -2751 -2752 @property -2753 def output_name(self): -2754 return self.name -2755 -2756 -2757class Parameter(Expression): -2758 arg_types = {"this": True, "wrapped": False} -2759 -2760 -2761class SessionParameter(Expression): -2762 arg_types = {"this": True, "kind": False} -2763 -2764 -2765class Placeholder(Expression): -2766 arg_types = {"this": False} -2767 -2768 -2769class Null(Condition): -2770 arg_types: t.Dict[str, t.Any] = {} -2771 -2772 @property -2773 def name(self) -> str: -2774 return "NULL" -2775 -2776 -2777class Boolean(Condition): -2778 pass -2779 -2780 -2781class DataType(Expression): -2782 arg_types = { -2783 "this": True, -2784 "expressions": False, -2785 "nested": False, -2786 "values": False, -2787 "prefix": False, -2788 } -2789 -2790 class Type(AutoName): -2791 CHAR = auto() -2792 NCHAR = auto() -2793 VARCHAR = auto() -2794 NVARCHAR = auto() -2795 TEXT = auto() -2796 MEDIUMTEXT = auto() -2797 LONGTEXT = auto() -2798 MEDIUMBLOB = auto() -2799 LONGBLOB = auto() -2800 BINARY = auto() -2801 VARBINARY = auto() -2802 INT = auto() -2803 UINT = auto() -2804 TINYINT = auto() -2805 UTINYINT = auto() -2806 SMALLINT = auto() -2807 USMALLINT = auto() -2808 BIGINT = auto() -2809 UBIGINT = auto() -2810 FLOAT = auto() -2811 DOUBLE = auto() -2812 DECIMAL = auto() -2813 BIT = auto() -2814 BOOLEAN = auto() -2815 JSON = auto() -2816 JSONB = auto() -2817 INTERVAL = auto() -2818 TIME = auto() -2819 TIMESTAMP = auto() -2820 TIMESTAMPTZ = auto() -2821 TIMESTAMPLTZ = auto() -2822 DATE = auto() -2823 DATETIME = auto() -2824 ARRAY = auto() -2825 MAP = auto() -2826 UUID = auto() -2827 GEOGRAPHY = auto() -2828 GEOMETRY = auto() -2829 STRUCT = auto() -2830 NULLABLE = auto() -2831 HLLSKETCH = auto() -2832 HSTORE = auto() -2833 SUPER = auto() -2834 SERIAL = auto() -2835 SMALLSERIAL = auto() -2836 BIGSERIAL = auto() -2837 XML = auto() -2838 UNIQUEIDENTIFIER = auto() -2839 MONEY = auto() -2840 SMALLMONEY = auto() -2841 ROWVERSION = auto() -2842 IMAGE = auto() -2843 VARIANT = auto() -2844 OBJECT = auto() -2845 INET = auto() -2846 NULL = auto() -2847 UNKNOWN = auto() # Sentinel value, useful for type annotation -2848 -2849 TEXT_TYPES = { -2850 Type.CHAR, -2851 Type.NCHAR, -2852 Type.VARCHAR, -2853 Type.NVARCHAR, -2854 Type.TEXT, -2855 } -2856 -2857 INTEGER_TYPES = { -2858 Type.INT, -2859 Type.TINYINT, -2860 Type.SMALLINT, -2861 Type.BIGINT, -2862 } -2863 -2864 FLOAT_TYPES = { -2865 Type.FLOAT, -2866 Type.DOUBLE, -2867 } -2868 -2869 NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES} -2870 -2871 TEMPORAL_TYPES = { -2872 Type.TIMESTAMP, -2873 Type.TIMESTAMPTZ, -2874 Type.TIMESTAMPLTZ, -2875 Type.DATE, -2876 Type.DATETIME, -2877 } -2878 -2879 @classmethod -2880 def build( -2881 cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs -2882 ) -> DataType: -2883 from sqlglot import parse_one +2710 arg_types = { +2711 "this": False, +2712 "prefix": False, +2713 "postfix": False, +2714 } +2715 +2716 +2717class Pivot(Expression): +2718 arg_types = { +2719 "this": False, +2720 "alias": False, +2721 "expressions": True, +2722 "field": True, +2723 "unpivot": True, +2724 } +2725 +2726 +2727class Window(Expression): +2728 arg_types = { +2729 "this": True, +2730 "partition_by": False, +2731 "order": False, +2732 "spec": False, +2733 "alias": False, +2734 } +2735 +2736 +2737class WindowSpec(Expression): +2738 arg_types = { +2739 "kind": False, +2740 "start": False, +2741 "start_side": False, +2742 "end": False, +2743 "end_side": False, +2744 } +2745 +2746 +2747class Where(Expression): +2748 pass +2749 +2750 +2751class Star(Expression): +2752 arg_types = {"except": False, "replace": False} +2753 +2754 @property +2755 def name(self) -> str: +2756 return "*" +2757 +2758 @property +2759 def output_name(self): +2760 return self.name +2761 +2762 +2763class Parameter(Expression): +2764 arg_types = {"this": True, "wrapped": False} +2765 +2766 +2767class SessionParameter(Expression): +2768 arg_types = {"this": True, "kind": False} +2769 +2770 +2771class Placeholder(Expression): +2772 arg_types = {"this": False} +2773 +2774 +2775class Null(Condition): +2776 arg_types: t.Dict[str, t.Any] = {} +2777 +2778 @property +2779 def name(self) -> str: +2780 return "NULL" +2781 +2782 +2783class Boolean(Condition): +2784 pass +2785 +2786 +2787class DataType(Expression): +2788 arg_types = { +2789 "this": True, +2790 "expressions": False, +2791 "nested": False, +2792 "values": False, +2793 "prefix": False, +2794 } +2795 +2796 class Type(AutoName): +2797 CHAR = auto() +2798 NCHAR = auto() +2799 VARCHAR = auto() +2800 NVARCHAR = auto() +2801 TEXT = auto() +2802 MEDIUMTEXT = auto() +2803 LONGTEXT = auto() +2804 MEDIUMBLOB = auto() +2805 LONGBLOB = auto() +2806 BINARY = auto() +2807 VARBINARY = auto() +2808 INT = auto() +2809 UINT = auto() +2810 TINYINT = auto() +2811 UTINYINT = auto() +2812 SMALLINT = auto() +2813 USMALLINT = auto() +2814 BIGINT = auto() +2815 UBIGINT = auto() +2816 FLOAT = auto() +2817 DOUBLE = auto() +2818 DECIMAL = auto() +2819 BIT = auto() +2820 BOOLEAN = auto() +2821 JSON = auto() +2822 JSONB = auto() +2823 INTERVAL = auto() +2824 TIME = auto() +2825 TIMESTAMP = auto() +2826 TIMESTAMPTZ = auto() +2827 TIMESTAMPLTZ = auto() +2828 DATE = auto() +2829 DATETIME = auto() +2830 ARRAY = auto() +2831 MAP = auto() +2832 UUID = auto() +2833 GEOGRAPHY = auto() +2834 GEOMETRY = auto() +2835 STRUCT = auto() +2836 NULLABLE = auto() +2837 HLLSKETCH = auto() +2838 HSTORE = auto() +2839 SUPER = auto() +2840 SERIAL = auto() +2841 SMALLSERIAL = auto() +2842 BIGSERIAL = auto() +2843 XML = auto() +2844 UNIQUEIDENTIFIER = auto() +2845 MONEY = auto() +2846 SMALLMONEY = auto() +2847 ROWVERSION = auto() +2848 IMAGE = auto() +2849 VARIANT = auto() +2850 OBJECT = auto() +2851 INET = auto() +2852 NULL = auto() +2853 UNKNOWN = auto() # Sentinel value, useful for type annotation +2854 +2855 TEXT_TYPES = { +2856 Type.CHAR, +2857 Type.NCHAR, +2858 Type.VARCHAR, +2859 Type.NVARCHAR, +2860 Type.TEXT, +2861 } +2862 +2863 INTEGER_TYPES = { +2864 Type.INT, +2865 Type.TINYINT, +2866 Type.SMALLINT, +2867 Type.BIGINT, +2868 } +2869 +2870 FLOAT_TYPES = { +2871 Type.FLOAT, +2872 Type.DOUBLE, +2873 } +2874 +2875 NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES} +2876 +2877 TEMPORAL_TYPES = { +2878 Type.TIMESTAMP, +2879 Type.TIMESTAMPTZ, +2880 Type.TIMESTAMPLTZ, +2881 Type.DATE, +2882 Type.DATETIME, +2883 } 2884 -2885 if isinstance(dtype, str): -2886 if dtype.upper() in cls.Type.__members__: -2887 data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()]) -2888 else: -2889 data_type_exp = parse_one(dtype, read=dialect, into=DataType) -2890 if data_type_exp is None: -2891 raise ValueError(f"Unparsable data type value: {dtype}") -2892 elif isinstance(dtype, DataType.Type): -2893 data_type_exp = DataType(this=dtype) -2894 elif isinstance(dtype, DataType): -2895 return dtype -2896 else: -2897 raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type") -2898 return DataType(**{**data_type_exp.args, **kwargs}) -2899 -2900 def is_type(self, dtype: DataType.Type) -> bool: -2901 return self.this == dtype -2902 -2903 -2904# https://www.postgresql.org/docs/15/datatype-pseudo.html -2905class PseudoType(Expression): -2906 pass -2907 +2885 @classmethod +2886 def build( +2887 cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs +2888 ) -> DataType: +2889 from sqlglot import parse_one +2890 +2891 if isinstance(dtype, str): +2892 if dtype.upper() in cls.Type.__members__: +2893 data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()]) +2894 else: +2895 data_type_exp = parse_one(dtype, read=dialect, into=DataType) +2896 if data_type_exp is None: +2897 raise ValueError(f"Unparsable data type value: {dtype}") +2898 elif isinstance(dtype, DataType.Type): +2899 data_type_exp = DataType(this=dtype) +2900 elif isinstance(dtype, DataType): +2901 return dtype +2902 else: +2903 raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type") +2904 return DataType(**{**data_type_exp.args, **kwargs}) +2905 +2906 def is_type(self, dtype: DataType.Type) -> bool: +2907 return self.this == dtype 2908 -2909class StructKwarg(Expression): -2910 arg_types = {"this": True, "expression": True} -2911 -2912 -2913# WHERE x <OP> EXISTS|ALL|ANY|SOME(SELECT ...) -2914class SubqueryPredicate(Predicate): -2915 pass -2916 +2909 +2910# https://www.postgresql.org/docs/15/datatype-pseudo.html +2911class PseudoType(Expression): +2912 pass +2913 +2914 +2915class StructKwarg(Expression): +2916 arg_types = {"this": True, "expression": True} 2917 -2918class All(SubqueryPredicate): -2919 pass -2920 -2921 -2922class Any(SubqueryPredicate): -2923 pass -2924 -2925 -2926class Exists(SubqueryPredicate): -2927 pass -2928 -2929 -2930# Commands to interact with the databases or engines. For most of the command -2931# expressions we parse whatever comes after the command's name as a string. -2932class Command(Expression): -2933 arg_types = {"this": True, "expression": False} +2918 +2919# WHERE x <OP> EXISTS|ALL|ANY|SOME(SELECT ...) +2920class SubqueryPredicate(Predicate): +2921 pass +2922 +2923 +2924class All(SubqueryPredicate): +2925 pass +2926 +2927 +2928class Any(SubqueryPredicate): +2929 pass +2930 +2931 +2932class Exists(SubqueryPredicate): +2933 pass 2934 2935 -2936class Transaction(Expression): -2937 arg_types = {"this": False, "modes": False} -2938 -2939 -2940class Commit(Expression): -2941 arg_types = {"chain": False} -2942 -2943 -2944class Rollback(Expression): -2945 arg_types = {"savepoint": False} -2946 -2947 -2948class AlterTable(Expression): -2949 arg_types = {"this": True, "actions": True, "exists": False} -2950 -2951 -2952class AddConstraint(Expression): -2953 arg_types = {"this": False, "expression": False, "enforced": False} -2954 -2955 -2956class DropPartition(Expression): -2957 arg_types = {"expressions": True, "exists": False} -2958 -2959 -2960# Binary expressions like (ADD a b) -2961class Binary(Expression): -2962 arg_types = {"this": True, "expression": True} -2963 -2964 @property -2965 def left(self): -2966 return self.this -2967 -2968 @property -2969 def right(self): -2970 return self.expression -2971 -2972 -2973class Add(Binary): -2974 pass -2975 -2976 -2977class Connector(Binary, Condition): -2978 pass -2979 -2980 -2981class And(Connector): -2982 pass -2983 -2984 -2985class Or(Connector): -2986 pass -2987 -2988 -2989class BitwiseAnd(Binary): -2990 pass -2991 -2992 -2993class BitwiseLeftShift(Binary): -2994 pass -2995 -2996 -2997class BitwiseOr(Binary): -2998 pass -2999 -3000 -3001class BitwiseRightShift(Binary): -3002 pass -3003 -3004 -3005class BitwiseXor(Binary): -3006 pass -3007 -3008 -3009class Div(Binary): -3010 pass -3011 -3012 -3013class Overlaps(Binary): -3014 pass -3015 -3016 -3017class Dot(Binary): -3018 @property -3019 def name(self) -> str: -3020 return self.expression.name +2936# Commands to interact with the databases or engines. For most of the command +2937# expressions we parse whatever comes after the command's name as a string. +2938class Command(Expression): +2939 arg_types = {"this": True, "expression": False} +2940 +2941 +2942class Transaction(Expression): +2943 arg_types = {"this": False, "modes": False} +2944 +2945 +2946class Commit(Expression): +2947 arg_types = {"chain": False} +2948 +2949 +2950class Rollback(Expression): +2951 arg_types = {"savepoint": False} +2952 +2953 +2954class AlterTable(Expression): +2955 arg_types = {"this": True, "actions": True, "exists": False} +2956 +2957 +2958class AddConstraint(Expression): +2959 arg_types = {"this": False, "expression": False, "enforced": False} +2960 +2961 +2962class DropPartition(Expression): +2963 arg_types = {"expressions": True, "exists": False} +2964 +2965 +2966# Binary expressions like (ADD a b) +2967class Binary(Expression): +2968 arg_types = {"this": True, "expression": True} +2969 +2970 @property +2971 def left(self): +2972 return self.this +2973 +2974 @property +2975 def right(self): +2976 return self.expression +2977 +2978 +2979class Add(Binary): +2980 pass +2981 +2982 +2983class Connector(Binary, Condition): +2984 pass +2985 +2986 +2987class And(Connector): +2988 pass +2989 +2990 +2991class Or(Connector): +2992 pass +2993 +2994 +2995class BitwiseAnd(Binary): +2996 pass +2997 +2998 +2999class BitwiseLeftShift(Binary): +3000 pass +3001 +3002 +3003class BitwiseOr(Binary): +3004 pass +3005 +3006 +3007class BitwiseRightShift(Binary): +3008 pass +3009 +3010 +3011class BitwiseXor(Binary): +3012 pass +3013 +3014 +3015class Div(Binary): +3016 pass +3017 +3018 +3019class Overlaps(Binary): +3020 pass 3021 -3022 @classmethod -3023 def build(self, expressions: t.Sequence[Expression]) -> Dot: -3024 """Build a Dot object with a sequence of expressions.""" -3025 if len(expressions) < 2: -3026 raise ValueError(f"Dot requires >= 2 expressions.") +3022 +3023class Dot(Binary): +3024 @property +3025 def name(self) -> str: +3026 return self.expression.name 3027 -3028 a, b, *expressions = expressions -3029 dot = Dot(this=a, expression=b) -3030 -3031 for expression in expressions: -3032 dot = Dot(this=dot, expression=expression) +3028 @classmethod +3029 def build(self, expressions: t.Sequence[Expression]) -> Dot: +3030 """Build a Dot object with a sequence of expressions.""" +3031 if len(expressions) < 2: +3032 raise ValueError(f"Dot requires >= 2 expressions.") 3033 -3034 return dot -3035 +3034 a, b, *expressions = expressions +3035 dot = Dot(this=a, expression=b) 3036 -3037class DPipe(Binary): -3038 pass +3037 for expression in expressions: +3038 dot = Dot(this=dot, expression=expression) 3039 -3040 -3041class EQ(Binary, Predicate): -3042 pass -3043 -3044 -3045class NullSafeEQ(Binary, Predicate): -3046 pass -3047 -3048 -3049class NullSafeNEQ(Binary, Predicate): -3050 pass -3051 -3052 -3053class Distance(Binary): -3054 pass -3055 -3056 -3057class Escape(Binary): -3058 pass -3059 -3060 -3061class Glob(Binary, Predicate): -3062 pass -3063 -3064 -3065class GT(Binary, Predicate): -3066 pass -3067 -3068 -3069class GTE(Binary, Predicate): -3070 pass -3071 -3072 -3073class ILike(Binary, Predicate): -3074 pass -3075 -3076 -3077class ILikeAny(Binary, Predicate): -3078 pass -3079 -3080 -3081class IntDiv(Binary): -3082 pass -3083 -3084 -3085class Is(Binary, Predicate): -3086 pass -3087 -3088 -3089class Kwarg(Binary): -3090 """Kwarg in special functions like func(kwarg => y).""" -3091 -3092 -3093class Like(Binary, Predicate): -3094 pass -3095 -3096 -3097class LikeAny(Binary, Predicate): -3098 pass -3099 -3100 -3101class LT(Binary, Predicate): -3102 pass -3103 -3104 -3105class LTE(Binary, Predicate): -3106 pass -3107 -3108 -3109class Mod(Binary): -3110 pass -3111 -3112 -3113class Mul(Binary): -3114 pass -3115 -3116 -3117class NEQ(Binary, Predicate): -3118 pass -3119 -3120 -3121class SimilarTo(Binary, Predicate): -3122 pass -3123 -3124 -3125class Slice(Binary): -3126 arg_types = {"this": False, "expression": False} -3127 -3128 -3129class Sub(Binary): -3130 pass -3131 -3132 -3133class ArrayOverlaps(Binary): -3134 pass -3135 -3136 -3137# Unary Expressions -3138# (NOT a) -3139class Unary(Expression): +3040 return dot +3041 +3042 +3043class DPipe(Binary): +3044 pass +3045 +3046 +3047class EQ(Binary, Predicate): +3048 pass +3049 +3050 +3051class NullSafeEQ(Binary, Predicate): +3052 pass +3053 +3054 +3055class NullSafeNEQ(Binary, Predicate): +3056 pass +3057 +3058 +3059class Distance(Binary): +3060 pass +3061 +3062 +3063class Escape(Binary): +3064 pass +3065 +3066 +3067class Glob(Binary, Predicate): +3068 pass +3069 +3070 +3071class GT(Binary, Predicate): +3072 pass +3073 +3074 +3075class GTE(Binary, Predicate): +3076 pass +3077 +3078 +3079class ILike(Binary, Predicate): +3080 pass +3081 +3082 +3083class ILikeAny(Binary, Predicate): +3084 pass +3085 +3086 +3087class IntDiv(Binary): +3088 pass +3089 +3090 +3091class Is(Binary, Predicate): +3092 pass +3093 +3094 +3095class Kwarg(Binary): +3096 """Kwarg in special functions like func(kwarg => y).""" +3097 +3098 +3099class Like(Binary, Predicate): +3100 pass +3101 +3102 +3103class LikeAny(Binary, Predicate): +3104 pass +3105 +3106 +3107class LT(Binary, Predicate): +3108 pass +3109 +3110 +3111class LTE(Binary, Predicate): +3112 pass +3113 +3114 +3115class Mod(Binary): +3116 pass +3117 +3118 +3119class Mul(Binary): +3120 pass +3121 +3122 +3123class NEQ(Binary, Predicate): +3124 pass +3125 +3126 +3127class SimilarTo(Binary, Predicate): +3128 pass +3129 +3130 +3131class Slice(Binary): +3132 arg_types = {"this": False, "expression": False} +3133 +3134 +3135class Sub(Binary): +3136 pass +3137 +3138 +3139class ArrayOverlaps(Binary): 3140 pass 3141 3142 -3143class BitwiseNot(Unary): -3144 pass -3145 -3146 -3147class Not(Unary, Condition): -3148 pass -3149 -3150 -3151class Paren(Unary, Condition): -3152 arg_types = {"this": True, "with": False} -3153 -3154 -3155class Neg(Unary): -3156 pass -3157 -3158 -3159# Special Functions -3160class Alias(Expression): -3161 arg_types = {"this": True, "alias": False} -3162 -3163 @property -3164 def output_name(self): -3165 return self.alias -3166 -3167 -3168class Aliases(Expression): -3169 arg_types = {"this": True, "expressions": True} -3170 -3171 @property -3172 def aliases(self): -3173 return self.expressions -3174 -3175 -3176class AtTimeZone(Expression): -3177 arg_types = {"this": True, "zone": True} -3178 -3179 -3180class Between(Predicate): -3181 arg_types = {"this": True, "low": True, "high": True} -3182 -3183 -3184class Bracket(Condition): -3185 arg_types = {"this": True, "expressions": True} -3186 -3187 -3188class Distinct(Expression): -3189 arg_types = {"expressions": False, "on": False} -3190 -3191 -3192class In(Predicate): -3193 arg_types = { -3194 "this": True, -3195 "expressions": False, -3196 "query": False, -3197 "unnest": False, -3198 "field": False, -3199 "is_global": False, -3200 } -3201 -3202 -3203class TimeUnit(Expression): -3204 """Automatically converts unit arg into a var.""" -3205 -3206 arg_types = {"unit": False} +3143# Unary Expressions +3144# (NOT a) +3145class Unary(Expression): +3146 pass +3147 +3148 +3149class BitwiseNot(Unary): +3150 pass +3151 +3152 +3153class Not(Unary, Condition): +3154 pass +3155 +3156 +3157class Paren(Unary, Condition): +3158 arg_types = {"this": True, "with": False} +3159 +3160 +3161class Neg(Unary): +3162 pass +3163 +3164 +3165# Special Functions +3166class Alias(Expression): +3167 arg_types = {"this": True, "alias": False} +3168 +3169 @property +3170 def output_name(self): +3171 return self.alias +3172 +3173 +3174class Aliases(Expression): +3175 arg_types = {"this": True, "expressions": True} +3176 +3177 @property +3178 def aliases(self): +3179 return self.expressions +3180 +3181 +3182class AtTimeZone(Expression): +3183 arg_types = {"this": True, "zone": True} +3184 +3185 +3186class Between(Predicate): +3187 arg_types = {"this": True, "low": True, "high": True} +3188 +3189 +3190class Bracket(Condition): +3191 arg_types = {"this": True, "expressions": True} +3192 +3193 +3194class Distinct(Expression): +3195 arg_types = {"expressions": False, "on": False} +3196 +3197 +3198class In(Predicate): +3199 arg_types = { +3200 "this": True, +3201 "expressions": False, +3202 "query": False, +3203 "unnest": False, +3204 "field": False, +3205 "is_global": False, +3206 } 3207 -3208 def __init__(self, **args): -3209 unit = args.get("unit") -3210 if isinstance(unit, (Column, Literal)): -3211 args["unit"] = Var(this=unit.name) -3212 elif isinstance(unit, Week): -3213 unit.set("this", Var(this=unit.this.name)) -3214 super().__init__(**args) -3215 -3216 -3217class Interval(TimeUnit): -3218 arg_types = {"this": False, "unit": False} -3219 -3220 -3221class IgnoreNulls(Expression): -3222 pass -3223 -3224 -3225class RespectNulls(Expression): -3226 pass -3227 -3228 -3229# Functions -3230class Func(Condition): -3231 """ -3232 The base class for all function expressions. +3208 +3209class TimeUnit(Expression): +3210 """Automatically converts unit arg into a var.""" +3211 +3212 arg_types = {"unit": False} +3213 +3214 def __init__(self, **args): +3215 unit = args.get("unit") +3216 if isinstance(unit, (Column, Literal)): +3217 args["unit"] = Var(this=unit.name) +3218 elif isinstance(unit, Week): +3219 unit.set("this", Var(this=unit.this.name)) +3220 super().__init__(**args) +3221 +3222 +3223class Interval(TimeUnit): +3224 arg_types = {"this": False, "unit": False} +3225 +3226 +3227class IgnoreNulls(Expression): +3228 pass +3229 +3230 +3231class RespectNulls(Expression): +3232 pass 3233 -3234 Attributes: -3235 is_var_len_args (bool): if set to True the last argument defined in arg_types will be -3236 treated as a variable length argument and the argument's value will be stored as a list. -3237 _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items) -3238 for this function expression. These values are used to map this node to a name during parsing -3239 as well as to provide the function's name during SQL string generation. By default the SQL -3240 name is set to the expression's class name transformed to snake case. -3241 """ -3242 -3243 is_var_len_args = False -3244 -3245 @classmethod -3246 def from_arg_list(cls, args): -3247 if cls.is_var_len_args: -3248 all_arg_keys = list(cls.arg_types) -3249 # If this function supports variable length argument treat the last argument as such. -3250 non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys -3251 num_non_var = len(non_var_len_arg_keys) -3252 -3253 args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)} -3254 args_dict[all_arg_keys[-1]] = args[num_non_var:] -3255 else: -3256 args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)} -3257 -3258 return cls(**args_dict) -3259 -3260 @classmethod -3261 def sql_names(cls): -3262 if cls is Func: -3263 raise NotImplementedError( -3264 "SQL name is only supported by concrete function implementations" -3265 ) -3266 if "_sql_names" not in cls.__dict__: -3267 cls._sql_names = [camel_to_snake_case(cls.__name__)] -3268 return cls._sql_names -3269 -3270 @classmethod -3271 def sql_name(cls): -3272 return cls.sql_names()[0] -3273 -3274 @classmethod -3275 def default_parser_mappings(cls): -3276 return {name: cls.from_arg_list for name in cls.sql_names()} -3277 -3278 -3279class AggFunc(Func): -3280 pass -3281 -3282 -3283class Abs(Func): -3284 pass -3285 -3286 -3287class Anonymous(Func): -3288 arg_types = {"this": True, "expressions": False} -3289 is_var_len_args = True -3290 +3234 +3235# Functions +3236class Func(Condition): +3237 """ +3238 The base class for all function expressions. +3239 +3240 Attributes: +3241 is_var_len_args (bool): if set to True the last argument defined in arg_types will be +3242 treated as a variable length argument and the argument's value will be stored as a list. +3243 _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items) +3244 for this function expression. These values are used to map this node to a name during parsing +3245 as well as to provide the function's name during SQL string generation. By default the SQL +3246 name is set to the expression's class name transformed to snake case. +3247 """ +3248 +3249 is_var_len_args = False +3250 +3251 @classmethod +3252 def from_arg_list(cls, args): +3253 if cls.is_var_len_args: +3254 all_arg_keys = list(cls.arg_types) +3255 # If this function supports variable length argument treat the last argument as such. +3256 non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys +3257 num_non_var = len(non_var_len_arg_keys) +3258 +3259 args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)} +3260 args_dict[all_arg_keys[-1]] = args[num_non_var:] +3261 else: +3262 args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)} +3263 +3264 return cls(**args_dict) +3265 +3266 @classmethod +3267 def sql_names(cls): +3268 if cls is Func: +3269 raise NotImplementedError( +3270 "SQL name is only supported by concrete function implementations" +3271 ) +3272 if "_sql_names" not in cls.__dict__: +3273 cls._sql_names = [camel_to_snake_case(cls.__name__)] +3274 return cls._sql_names +3275 +3276 @classmethod +3277 def sql_name(cls): +3278 return cls.sql_names()[0] +3279 +3280 @classmethod +3281 def default_parser_mappings(cls): +3282 return {name: cls.from_arg_list for name in cls.sql_names()} +3283 +3284 +3285class AggFunc(Func): +3286 pass +3287 +3288 +3289class Abs(Func): +3290 pass 3291 -3292class ApproxDistinct(AggFunc): -3293 arg_types = {"this": True, "accuracy": False} -3294 -3295 -3296class Array(Func): -3297 arg_types = {"expressions": False} -3298 is_var_len_args = True -3299 -3300 -3301# https://docs.snowflake.com/en/sql-reference/functions/to_char -3302class ToChar(Func): -3303 arg_types = {"this": True, "format": False} +3292 +3293class Anonymous(Func): +3294 arg_types = {"this": True, "expressions": False} +3295 is_var_len_args = True +3296 +3297 +3298# https://docs.snowflake.com/en/sql-reference/functions/hll +3299# https://docs.aws.amazon.com/redshift/latest/dg/r_HLL_function.html +3300class Hll(AggFunc): +3301 arg_types = {"this": True, "expressions": False} +3302 is_var_len_args = True +3303 3304 -3305 -3306class GenerateSeries(Func): -3307 arg_types = {"start": True, "end": True, "step": False} +3305class ApproxDistinct(AggFunc): +3306 arg_types = {"this": True, "accuracy": False} +3307 3308 -3309 -3310class ArrayAgg(AggFunc): -3311 pass +3309class Array(Func): +3310 arg_types = {"expressions": False} +3311 is_var_len_args = True 3312 3313 -3314class ArrayAll(Func): -3315 arg_types = {"this": True, "expression": True} -3316 +3314# https://docs.snowflake.com/en/sql-reference/functions/to_char +3315class ToChar(Func): +3316 arg_types = {"this": True, "format": False} 3317 -3318class ArrayAny(Func): -3319 arg_types = {"this": True, "expression": True} -3320 +3318 +3319class GenerateSeries(Func): +3320 arg_types = {"start": True, "end": True, "step": False} 3321 -3322class ArrayConcat(Func): -3323 arg_types = {"this": True, "expressions": False} -3324 is_var_len_args = True +3322 +3323class ArrayAgg(AggFunc): +3324 pass 3325 3326 -3327class ArrayContains(Binary, Func): -3328 pass +3327class ArrayAll(Func): +3328 arg_types = {"this": True, "expression": True} 3329 3330 -3331class ArrayContained(Binary): -3332 pass +3331class ArrayAny(Func): +3332 arg_types = {"this": True, "expression": True} 3333 3334 -3335class ArrayFilter(Func): -3336 arg_types = {"this": True, "expression": True} -3337 _sql_names = ["FILTER", "ARRAY_FILTER"] +3335class ArrayConcat(Func): +3336 arg_types = {"this": True, "expressions": False} +3337 is_var_len_args = True 3338 3339 -3340class ArrayJoin(Func): -3341 arg_types = {"this": True, "expression": True, "null": False} +3340class ArrayContains(Binary, Func): +3341 pass 3342 3343 -3344class ArraySize(Func): -3345 arg_types = {"this": True, "expression": False} +3344class ArrayContained(Binary): +3345 pass 3346 3347 -3348class ArraySort(Func): -3349 arg_types = {"this": True, "expression": False} -3350 +3348class ArrayFilter(Func): +3349 arg_types = {"this": True, "expression": True} +3350 _sql_names = ["FILTER", "ARRAY_FILTER"] 3351 -3352class ArraySum(Func): -3353 pass -3354 +3352 +3353class ArrayJoin(Func): +3354 arg_types = {"this": True, "expression": True, "null": False} 3355 -3356class ArrayUnionAgg(AggFunc): -3357 pass -3358 +3356 +3357class ArraySize(Func): +3358 arg_types = {"this": True, "expression": False} 3359 -3360class Avg(AggFunc): -3361 pass -3362 +3360 +3361class ArraySort(Func): +3362 arg_types = {"this": True, "expression": False} 3363 -3364class AnyValue(AggFunc): -3365 pass -3366 +3364 +3365class ArraySum(Func): +3366 pass 3367 -3368class Case(Func): -3369 arg_types = {"this": False, "ifs": True, "default": False} -3370 +3368 +3369class ArrayUnionAgg(AggFunc): +3370 pass 3371 -3372class Cast(Func): -3373 arg_types = {"this": True, "to": True} -3374 -3375 @property -3376 def name(self) -> str: -3377 return self.this.name -3378 -3379 @property -3380 def to(self): -3381 return self.args["to"] -3382 -3383 @property -3384 def output_name(self): -3385 return self.name -3386 -3387 def is_type(self, dtype: DataType.Type) -> bool: -3388 return self.to.is_type(dtype) -3389 -3390 -3391class Collate(Binary): -3392 pass -3393 -3394 -3395class TryCast(Cast): -3396 pass -3397 -3398 -3399class Ceil(Func): -3400 arg_types = {"this": True, "decimals": False} -3401 _sql_names = ["CEIL", "CEILING"] +3372 +3373class Avg(AggFunc): +3374 pass +3375 +3376 +3377class AnyValue(AggFunc): +3378 pass +3379 +3380 +3381class Case(Func): +3382 arg_types = {"this": False, "ifs": True, "default": False} +3383 +3384 +3385class Cast(Func): +3386 arg_types = {"this": True, "to": True} +3387 +3388 @property +3389 def name(self) -> str: +3390 return self.this.name +3391 +3392 @property +3393 def to(self): +3394 return self.args["to"] +3395 +3396 @property +3397 def output_name(self): +3398 return self.name +3399 +3400 def is_type(self, dtype: DataType.Type) -> bool: +3401 return self.to.is_type(dtype) 3402 3403 -3404class Coalesce(Func): -3405 arg_types = {"this": True, "expressions": False} -3406 is_var_len_args = True +3404class Collate(Binary): +3405 pass +3406 3407 -3408 -3409class Concat(Func): -3410 arg_types = {"expressions": True} -3411 is_var_len_args = True -3412 -3413 -3414class ConcatWs(Concat): -3415 _sql_names = ["CONCAT_WS"] +3408class TryCast(Cast): +3409 pass +3410 +3411 +3412class Ceil(Func): +3413 arg_types = {"this": True, "decimals": False} +3414 _sql_names = ["CEIL", "CEILING"] +3415 3416 -3417 -3418class Count(AggFunc): -3419 arg_types = {"this": False} +3417class Coalesce(Func): +3418 arg_types = {"this": True, "expressions": False} +3419 is_var_len_args = True 3420 3421 -3422class CountIf(AggFunc): -3423 pass -3424 +3422class Concat(Func): +3423 arg_types = {"expressions": True} +3424 is_var_len_args = True 3425 -3426class CurrentDate(Func): -3427 arg_types = {"this": False} -3428 +3426 +3427class ConcatWs(Concat): +3428 _sql_names = ["CONCAT_WS"] 3429 -3430class CurrentDatetime(Func): -3431 arg_types = {"this": False} -3432 +3430 +3431class Count(AggFunc): +3432 arg_types = {"this": False} 3433 -3434class CurrentTime(Func): -3435 arg_types = {"this": False} -3436 +3434 +3435class CountIf(AggFunc): +3436 pass 3437 -3438class CurrentTimestamp(Func): -3439 arg_types = {"this": False} -3440 +3438 +3439class CurrentDate(Func): +3440 arg_types = {"this": False} 3441 -3442class DateAdd(Func, TimeUnit): -3443 arg_types = {"this": True, "expression": True, "unit": False} -3444 +3442 +3443class CurrentDatetime(Func): +3444 arg_types = {"this": False} 3445 -3446class DateSub(Func, TimeUnit): -3447 arg_types = {"this": True, "expression": True, "unit": False} -3448 +3446 +3447class CurrentTime(Func): +3448 arg_types = {"this": False} 3449 -3450class DateDiff(Func, TimeUnit): -3451 _sql_names = ["DATEDIFF", "DATE_DIFF"] -3452 arg_types = {"this": True, "expression": True, "unit": False} +3450 +3451class CurrentTimestamp(Func): +3452 arg_types = {"this": False} 3453 3454 -3455class DateTrunc(Func): -3456 arg_types = {"unit": True, "this": True, "zone": False} +3455class DateAdd(Func, TimeUnit): +3456 arg_types = {"this": True, "expression": True, "unit": False} 3457 3458 -3459class DatetimeAdd(Func, TimeUnit): +3459class DateSub(Func, TimeUnit): 3460 arg_types = {"this": True, "expression": True, "unit": False} 3461 3462 -3463class DatetimeSub(Func, TimeUnit): -3464 arg_types = {"this": True, "expression": True, "unit": False} -3465 +3463class DateDiff(Func, TimeUnit): +3464 _sql_names = ["DATEDIFF", "DATE_DIFF"] +3465 arg_types = {"this": True, "expression": True, "unit": False} 3466 -3467class DatetimeDiff(Func, TimeUnit): -3468 arg_types = {"this": True, "expression": True, "unit": False} -3469 +3467 +3468class DateTrunc(Func): +3469 arg_types = {"unit": True, "this": True, "zone": False} 3470 -3471class DatetimeTrunc(Func, TimeUnit): -3472 arg_types = {"this": True, "unit": True, "zone": False} -3473 +3471 +3472class DatetimeAdd(Func, TimeUnit): +3473 arg_types = {"this": True, "expression": True, "unit": False} 3474 -3475class DayOfWeek(Func): -3476 _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"] -3477 +3475 +3476class DatetimeSub(Func, TimeUnit): +3477 arg_types = {"this": True, "expression": True, "unit": False} 3478 -3479class DayOfMonth(Func): -3480 _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"] -3481 +3479 +3480class DatetimeDiff(Func, TimeUnit): +3481 arg_types = {"this": True, "expression": True, "unit": False} 3482 -3483class DayOfYear(Func): -3484 _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"] -3485 +3483 +3484class DatetimeTrunc(Func, TimeUnit): +3485 arg_types = {"this": True, "unit": True, "zone": False} 3486 -3487class WeekOfYear(Func): -3488 _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"] -3489 +3487 +3488class DayOfWeek(Func): +3489 _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"] 3490 -3491class LastDateOfMonth(Func): -3492 pass -3493 +3491 +3492class DayOfMonth(Func): +3493 _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"] 3494 -3495class Extract(Func): -3496 arg_types = {"this": True, "expression": True} -3497 +3495 +3496class DayOfYear(Func): +3497 _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"] 3498 -3499class TimestampAdd(Func, TimeUnit): -3500 arg_types = {"this": True, "expression": True, "unit": False} -3501 +3499 +3500class WeekOfYear(Func): +3501 _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"] 3502 -3503class TimestampSub(Func, TimeUnit): -3504 arg_types = {"this": True, "expression": True, "unit": False} -3505 +3503 +3504class LastDateOfMonth(Func): +3505 pass 3506 -3507class TimestampDiff(Func, TimeUnit): -3508 arg_types = {"this": True, "expression": True, "unit": False} -3509 +3507 +3508class Extract(Func): +3509 arg_types = {"this": True, "expression": True} 3510 -3511class TimestampTrunc(Func, TimeUnit): -3512 arg_types = {"this": True, "unit": True, "zone": False} -3513 +3511 +3512class TimestampAdd(Func, TimeUnit): +3513 arg_types = {"this": True, "expression": True, "unit": False} 3514 -3515class TimeAdd(Func, TimeUnit): -3516 arg_types = {"this": True, "expression": True, "unit": False} -3517 +3515 +3516class TimestampSub(Func, TimeUnit): +3517 arg_types = {"this": True, "expression": True, "unit": False} 3518 -3519class TimeSub(Func, TimeUnit): -3520 arg_types = {"this": True, "expression": True, "unit": False} -3521 +3519 +3520class TimestampDiff(Func, TimeUnit): +3521 arg_types = {"this": True, "expression": True, "unit": False} 3522 -3523class TimeDiff(Func, TimeUnit): -3524 arg_types = {"this": True, "expression": True, "unit": False} -3525 +3523 +3524class TimestampTrunc(Func, TimeUnit): +3525 arg_types = {"this": True, "unit": True, "zone": False} 3526 -3527class TimeTrunc(Func, TimeUnit): -3528 arg_types = {"this": True, "unit": True, "zone": False} -3529 +3527 +3528class TimeAdd(Func, TimeUnit): +3529 arg_types = {"this": True, "expression": True, "unit": False} 3530 -3531class DateFromParts(Func): -3532 _sql_names = ["DATEFROMPARTS"] -3533 arg_types = {"year": True, "month": True, "day": True} +3531 +3532class TimeSub(Func, TimeUnit): +3533 arg_types = {"this": True, "expression": True, "unit": False} 3534 3535 -3536class DateStrToDate(Func): -3537 pass +3536class TimeDiff(Func, TimeUnit): +3537 arg_types = {"this": True, "expression": True, "unit": False} 3538 3539 -3540class DateToDateStr(Func): -3541 pass +3540class TimeTrunc(Func, TimeUnit): +3541 arg_types = {"this": True, "unit": True, "zone": False} 3542 3543 -3544class DateToDi(Func): -3545 pass -3546 +3544class DateFromParts(Func): +3545 _sql_names = ["DATEFROMPARTS"] +3546 arg_types = {"year": True, "month": True, "day": True} 3547 -3548class Day(Func): -3549 pass -3550 +3548 +3549class DateStrToDate(Func): +3550 pass 3551 -3552class Decode(Func): -3553 arg_types = {"this": True, "charset": True, "replace": False} -3554 +3552 +3553class DateToDateStr(Func): +3554 pass 3555 -3556class DiToDate(Func): -3557 pass -3558 +3556 +3557class DateToDi(Func): +3558 pass 3559 -3560class Encode(Func): -3561 arg_types = {"this": True, "charset": True} -3562 +3560 +3561class Day(Func): +3562 pass 3563 -3564class Exp(Func): -3565 pass -3566 +3564 +3565class Decode(Func): +3566 arg_types = {"this": True, "charset": True, "replace": False} 3567 -3568class Explode(Func): -3569 pass -3570 +3568 +3569class DiToDate(Func): +3570 pass 3571 -3572class ExponentialTimeDecayedAvg(AggFunc): -3573 arg_types = {"this": True, "time": False, "decay": False} -3574 +3572 +3573class Encode(Func): +3574 arg_types = {"this": True, "charset": True} 3575 -3576class Floor(Func): -3577 arg_types = {"this": True, "decimals": False} -3578 +3576 +3577class Exp(Func): +3578 pass 3579 -3580class Greatest(Func): -3581 arg_types = {"this": True, "expressions": False} -3582 is_var_len_args = True +3580 +3581class Explode(Func): +3582 pass 3583 3584 -3585class GroupConcat(Func): -3586 arg_types = {"this": True, "separator": False} +3585class ExponentialTimeDecayedAvg(AggFunc): +3586 arg_types = {"this": True, "time": False, "decay": False} 3587 3588 -3589class GroupUniqArray(AggFunc): -3590 arg_types = {"this": True, "size": False} +3589class Floor(Func): +3590 arg_types = {"this": True, "decimals": False} 3591 3592 -3593class Hex(Func): -3594 pass -3595 +3593class Greatest(Func): +3594 arg_types = {"this": True, "expressions": False} +3595 is_var_len_args = True 3596 -3597class Histogram(AggFunc): -3598 arg_types = {"this": True, "bins": False} -3599 +3597 +3598class GroupConcat(Func): +3599 arg_types = {"this": True, "separator": False} 3600 -3601class If(Func): -3602 arg_types = {"this": True, "true": True, "false": False} -3603 +3601 +3602class GroupUniqArray(AggFunc): +3603 arg_types = {"this": True, "size": False} 3604 -3605class IfNull(Func): -3606 arg_types = {"this": True, "expression": False} -3607 _sql_names = ["IFNULL", "NVL"] +3605 +3606class Hex(Func): +3607 pass 3608 3609 -3610class Initcap(Func): -3611 pass +3610class Histogram(AggFunc): +3611 arg_types = {"this": True, "bins": False} 3612 3613 -3614class JSONKeyValue(Expression): -3615 arg_types = {"this": True, "expression": True} +3614class If(Func): +3615 arg_types = {"this": True, "true": True, "false": False} 3616 3617 -3618class JSONObject(Func): -3619 arg_types = { -3620 "expressions": False, -3621 "null_handling": False, -3622 "unique_keys": False, -3623 "return_type": False, -3624 "format_json": False, -3625 "encoding": False, -3626 } -3627 -3628 -3629class JSONBContains(Binary): -3630 _sql_names = ["JSONB_CONTAINS"] -3631 -3632 -3633class JSONExtract(Binary, Func): -3634 _sql_names = ["JSON_EXTRACT"] -3635 -3636 -3637class JSONExtractScalar(JSONExtract): -3638 _sql_names = ["JSON_EXTRACT_SCALAR"] -3639 +3618class IfNull(Func): +3619 arg_types = {"this": True, "expression": False} +3620 _sql_names = ["IFNULL", "NVL"] +3621 +3622 +3623class Initcap(Func): +3624 pass +3625 +3626 +3627class JSONKeyValue(Expression): +3628 arg_types = {"this": True, "expression": True} +3629 +3630 +3631class JSONObject(Func): +3632 arg_types = { +3633 "expressions": False, +3634 "null_handling": False, +3635 "unique_keys": False, +3636 "return_type": False, +3637 "format_json": False, +3638 "encoding": False, +3639 } 3640 -3641class JSONBExtract(JSONExtract): -3642 _sql_names = ["JSONB_EXTRACT"] -3643 +3641 +3642class JSONBContains(Binary): +3643 _sql_names = ["JSONB_CONTAINS"] 3644 -3645class JSONBExtractScalar(JSONExtract): -3646 _sql_names = ["JSONB_EXTRACT_SCALAR"] -3647 +3645 +3646class JSONExtract(Binary, Func): +3647 _sql_names = ["JSON_EXTRACT"] 3648 -3649class Least(Func): -3650 arg_types = {"expressions": False} -3651 is_var_len_args = True +3649 +3650class JSONExtractScalar(JSONExtract): +3651 _sql_names = ["JSON_EXTRACT_SCALAR"] 3652 3653 -3654class Length(Func): -3655 pass +3654class JSONBExtract(JSONExtract): +3655 _sql_names = ["JSONB_EXTRACT"] 3656 3657 -3658class Levenshtein(Func): -3659 arg_types = { -3660 "this": True, -3661 "expression": False, -3662 "ins_cost": False, -3663 "del_cost": False, -3664 "sub_cost": False, -3665 } +3658class JSONBExtractScalar(JSONExtract): +3659 _sql_names = ["JSONB_EXTRACT_SCALAR"] +3660 +3661 +3662class JSONFormat(Func): +3663 arg_types = {"this": False, "options": False} +3664 _sql_names = ["JSON_FORMAT"] +3665 3666 -3667 -3668class Ln(Func): -3669 pass +3667class Least(Func): +3668 arg_types = {"expressions": False} +3669 is_var_len_args = True 3670 3671 -3672class Log(Func): -3673 arg_types = {"this": True, "expression": False} +3672class Length(Func): +3673 pass 3674 3675 -3676class Log2(Func): -3677 pass -3678 -3679 -3680class Log10(Func): -3681 pass -3682 -3683 -3684class LogicalOr(AggFunc): -3685 _sql_names = ["LOGICAL_OR", "BOOL_OR", "BOOLOR_AGG"] -3686 -3687 -3688class LogicalAnd(AggFunc): -3689 _sql_names = ["LOGICAL_AND", "BOOL_AND", "BOOLAND_AGG"] -3690 -3691 -3692class Lower(Func): -3693 _sql_names = ["LOWER", "LCASE"] -3694 -3695 -3696class Map(Func): -3697 arg_types = {"keys": False, "values": False} -3698 -3699 -3700class VarMap(Func): -3701 arg_types = {"keys": True, "values": True} -3702 is_var_len_args = True -3703 +3676class Levenshtein(Func): +3677 arg_types = { +3678 "this": True, +3679 "expression": False, +3680 "ins_cost": False, +3681 "del_cost": False, +3682 "sub_cost": False, +3683 } +3684 +3685 +3686class Ln(Func): +3687 pass +3688 +3689 +3690class Log(Func): +3691 arg_types = {"this": True, "expression": False} +3692 +3693 +3694class Log2(Func): +3695 pass +3696 +3697 +3698class Log10(Func): +3699 pass +3700 +3701 +3702class LogicalOr(AggFunc): +3703 _sql_names = ["LOGICAL_OR", "BOOL_OR", "BOOLOR_AGG"] 3704 -3705class Matches(Func): -3706 """Oracle/Snowflake decode. -3707 https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm -3708 Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else) -3709 """ -3710 -3711 arg_types = {"this": True, "expressions": True} -3712 is_var_len_args = True +3705 +3706class LogicalAnd(AggFunc): +3707 _sql_names = ["LOGICAL_AND", "BOOL_AND", "BOOLAND_AGG"] +3708 +3709 +3710class Lower(Func): +3711 _sql_names = ["LOWER", "LCASE"] +3712 3713 -3714 -3715class Max(AggFunc): -3716 arg_types = {"this": True, "expressions": False} -3717 is_var_len_args = True -3718 -3719 -3720class Min(AggFunc): -3721 arg_types = {"this": True, "expressions": False} -3722 is_var_len_args = True -3723 -3724 -3725class Month(Func): -3726 pass +3714class Map(Func): +3715 arg_types = {"keys": False, "values": False} +3716 +3717 +3718class VarMap(Func): +3719 arg_types = {"keys": True, "values": True} +3720 is_var_len_args = True +3721 +3722 +3723# https://dev.mysql.com/doc/refman/8.0/en/fulltext-search.html +3724class MatchAgainst(Func): +3725 arg_types = {"this": True, "expressions": True, "modifier": False} +3726 3727 -3728 -3729class Nvl2(Func): -3730 arg_types = {"this": True, "true": True, "false": False} +3728class Max(AggFunc): +3729 arg_types = {"this": True, "expressions": False} +3730 is_var_len_args = True 3731 3732 -3733class Posexplode(Func): -3734 pass -3735 +3733class Min(AggFunc): +3734 arg_types = {"this": True, "expressions": False} +3735 is_var_len_args = True 3736 -3737class Pow(Binary, Func): -3738 _sql_names = ["POWER", "POW"] -3739 +3737 +3738class Month(Func): +3739 pass 3740 -3741class PercentileCont(AggFunc): -3742 pass -3743 +3741 +3742class Nvl2(Func): +3743 arg_types = {"this": True, "true": True, "false": False} 3744 -3745class PercentileDisc(AggFunc): -3746 pass -3747 +3745 +3746class Posexplode(Func): +3747 pass 3748 -3749class Quantile(AggFunc): -3750 arg_types = {"this": True, "quantile": True} -3751 +3749 +3750class Pow(Binary, Func): +3751 _sql_names = ["POWER", "POW"] 3752 -3753# Clickhouse-specific: -3754# https://clickhouse.com/docs/en/sql-reference/aggregate-functions/reference/quantiles/#quantiles -3755class Quantiles(AggFunc): -3756 arg_types = {"parameters": True, "expressions": True} -3757 is_var_len_args = True -3758 -3759 -3760class QuantileIf(AggFunc): -3761 arg_types = {"parameters": True, "expressions": True} -3762 -3763 -3764class ApproxQuantile(Quantile): -3765 arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False} -3766 -3767 -3768class RangeN(Func): -3769 arg_types = {"this": True, "expressions": True, "each": False} -3770 +3753 +3754class PercentileCont(AggFunc): +3755 pass +3756 +3757 +3758class PercentileDisc(AggFunc): +3759 pass +3760 +3761 +3762class Quantile(AggFunc): +3763 arg_types = {"this": True, "quantile": True} +3764 +3765 +3766# Clickhouse-specific: +3767# https://clickhouse.com/docs/en/sql-reference/aggregate-functions/reference/quantiles/#quantiles +3768class Quantiles(AggFunc): +3769 arg_types = {"parameters": True, "expressions": True} +3770 is_var_len_args = True 3771 -3772class ReadCSV(Func): -3773 _sql_names = ["READ_CSV"] -3774 is_var_len_args = True -3775 arg_types = {"this": True, "expressions": False} +3772 +3773class QuantileIf(AggFunc): +3774 arg_types = {"parameters": True, "expressions": True} +3775 3776 -3777 -3778class Reduce(Func): -3779 arg_types = {"this": True, "initial": True, "merge": True, "finish": False} +3777class ApproxQuantile(Quantile): +3778 arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False} +3779 3780 -3781 -3782class RegexpExtract(Func): -3783 arg_types = { -3784 "this": True, -3785 "expression": True, -3786 "position": False, -3787 "occurrence": False, -3788 "group": False, -3789 } +3781class RangeN(Func): +3782 arg_types = {"this": True, "expressions": True, "each": False} +3783 +3784 +3785class ReadCSV(Func): +3786 _sql_names = ["READ_CSV"] +3787 is_var_len_args = True +3788 arg_types = {"this": True, "expressions": False} +3789 3790 -3791 -3792class RegexpLike(Func): -3793 arg_types = {"this": True, "expression": True, "flag": False} +3791class Reduce(Func): +3792 arg_types = {"this": True, "initial": True, "merge": True, "finish": False} +3793 3794 -3795 -3796class RegexpILike(Func): -3797 arg_types = {"this": True, "expression": True, "flag": False} -3798 -3799 -3800class RegexpSplit(Func): -3801 arg_types = {"this": True, "expression": True} -3802 +3795class RegexpExtract(Func): +3796 arg_types = { +3797 "this": True, +3798 "expression": True, +3799 "position": False, +3800 "occurrence": False, +3801 "group": False, +3802 } 3803 -3804class Repeat(Func): -3805 arg_types = {"this": True, "times": True} -3806 +3804 +3805class RegexpLike(Func): +3806 arg_types = {"this": True, "expression": True, "flag": False} 3807 -3808class Round(Func): -3809 arg_types = {"this": True, "decimals": False} -3810 +3808 +3809class RegexpILike(Func): +3810 arg_types = {"this": True, "expression": True, "flag": False} 3811 -3812class RowNumber(Func): -3813 arg_types: t.Dict[str, t.Any] = {} -3814 -3815 -3816class SafeDivide(Func): -3817 arg_types = {"this": True, "expression": True} +3812 +3813# https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.split.html +3814# limit is the number of times a pattern is applied +3815class RegexpSplit(Func): +3816 arg_types = {"this": True, "expression": True, "limit": False} +3817 3818 -3819 -3820class SetAgg(AggFunc): -3821 pass +3819class Repeat(Func): +3820 arg_types = {"this": True, "times": True} +3821 3822 -3823 -3824class SortArray(Func): -3825 arg_types = {"this": True, "asc": False} +3823class Round(Func): +3824 arg_types = {"this": True, "decimals": False} +3825 3826 -3827 -3828class Split(Func): -3829 arg_types = {"this": True, "expression": True, "limit": False} +3827class RowNumber(Func): +3828 arg_types: t.Dict[str, t.Any] = {} +3829 3830 -3831 -3832# Start may be omitted in the case of postgres -3833# https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 -3834class Substring(Func): -3835 arg_types = {"this": True, "start": False, "length": False} -3836 +3831class SafeDivide(Func): +3832 arg_types = {"this": True, "expression": True} +3833 +3834 +3835class SetAgg(AggFunc): +3836 pass 3837 -3838class StrPosition(Func): -3839 arg_types = { -3840 "this": True, -3841 "substr": True, -3842 "position": False, -3843 "instance": False, -3844 } +3838 +3839class SortArray(Func): +3840 arg_types = {"this": True, "asc": False} +3841 +3842 +3843class Split(Func): +3844 arg_types = {"this": True, "expression": True, "limit": False} 3845 3846 -3847class StrToDate(Func): -3848 arg_types = {"this": True, "format": True} -3849 -3850 -3851class StrToTime(Func): -3852 arg_types = {"this": True, "format": True} -3853 -3854 -3855# Spark allows unix_timestamp() -3856# https://spark.apache.org/docs/3.1.3/api/python/reference/api/pyspark.sql.functions.unix_timestamp.html -3857class StrToUnix(Func): -3858 arg_types = {"this": False, "format": False} -3859 +3847# Start may be omitted in the case of postgres +3848# https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 +3849class Substring(Func): +3850 arg_types = {"this": True, "start": False, "length": False} +3851 +3852 +3853class StrPosition(Func): +3854 arg_types = { +3855 "this": True, +3856 "substr": True, +3857 "position": False, +3858 "instance": False, +3859 } 3860 -3861class NumberToStr(Func): -3862 arg_types = {"this": True, "format": True} -3863 +3861 +3862class StrToDate(Func): +3863 arg_types = {"this": True, "format": True} 3864 -3865class Struct(Func): -3866 arg_types = {"expressions": True} -3867 is_var_len_args = True +3865 +3866class StrToTime(Func): +3867 arg_types = {"this": True, "format": True} 3868 3869 -3870class StructExtract(Func): -3871 arg_types = {"this": True, "expression": True} -3872 -3873 -3874class Sum(AggFunc): -3875 pass -3876 -3877 -3878class Sqrt(Func): -3879 pass -3880 -3881 -3882class Stddev(AggFunc): -3883 pass +3870# Spark allows unix_timestamp() +3871# https://spark.apache.org/docs/3.1.3/api/python/reference/api/pyspark.sql.functions.unix_timestamp.html +3872class StrToUnix(Func): +3873 arg_types = {"this": False, "format": False} +3874 +3875 +3876class NumberToStr(Func): +3877 arg_types = {"this": True, "format": True} +3878 +3879 +3880class Struct(Func): +3881 arg_types = {"expressions": True} +3882 is_var_len_args = True +3883 3884 -3885 -3886class StddevPop(AggFunc): -3887 pass +3885class StructExtract(Func): +3886 arg_types = {"this": True, "expression": True} +3887 3888 -3889 -3890class StddevSamp(AggFunc): -3891 pass +3889class Sum(AggFunc): +3890 pass +3891 3892 -3893 -3894class TimeToStr(Func): -3895 arg_types = {"this": True, "format": True} +3893class Sqrt(Func): +3894 pass +3895 3896 -3897 -3898class TimeToTimeStr(Func): -3899 pass +3897class Stddev(AggFunc): +3898 pass +3899 3900 -3901 -3902class TimeToUnix(Func): -3903 pass +3901class StddevPop(AggFunc): +3902 pass +3903 3904 -3905 -3906class TimeStrToDate(Func): -3907 pass +3905class StddevSamp(AggFunc): +3906 pass +3907 3908 -3909 -3910class TimeStrToTime(Func): -3911 pass +3909class TimeToStr(Func): +3910 arg_types = {"this": True, "format": True} +3911 3912 -3913 -3914class TimeStrToUnix(Func): -3915 pass +3913class TimeToTimeStr(Func): +3914 pass +3915 3916 -3917 -3918class Trim(Func): -3919 arg_types = { -3920 "this": True, -3921 "expression": False, -3922 "position": False, -3923 "collation": False, -3924 } -3925 -3926 -3927class TsOrDsAdd(Func, TimeUnit): -3928 arg_types = {"this": True, "expression": True, "unit": False} -3929 -3930 -3931class TsOrDsToDateStr(Func): -3932 pass -3933 -3934 -3935class TsOrDsToDate(Func): -3936 arg_types = {"this": True, "format": False} -3937 -3938 -3939class TsOrDiToDi(Func): -3940 pass +3917class TimeToUnix(Func): +3918 pass +3919 +3920 +3921class TimeStrToDate(Func): +3922 pass +3923 +3924 +3925class TimeStrToTime(Func): +3926 pass +3927 +3928 +3929class TimeStrToUnix(Func): +3930 pass +3931 +3932 +3933class Trim(Func): +3934 arg_types = { +3935 "this": True, +3936 "expression": False, +3937 "position": False, +3938 "collation": False, +3939 } +3940 3941 -3942 -3943class Unhex(Func): -3944 pass +3942class TsOrDsAdd(Func, TimeUnit): +3943 arg_types = {"this": True, "expression": True, "unit": False} +3944 3945 -3946 -3947class UnixToStr(Func): -3948 arg_types = {"this": True, "format": False} +3946class TsOrDsToDateStr(Func): +3947 pass +3948 3949 -3950 -3951# https://prestodb.io/docs/current/functions/datetime.html -3952# presto has weird zone/hours/minutes -3953class UnixToTime(Func): -3954 arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False} -3955 -3956 SECONDS = Literal.string("seconds") -3957 MILLIS = Literal.string("millis") -3958 MICROS = Literal.string("micros") -3959 +3950class TsOrDsToDate(Func): +3951 arg_types = {"this": True, "format": False} +3952 +3953 +3954class TsOrDiToDi(Func): +3955 pass +3956 +3957 +3958class Unhex(Func): +3959 pass 3960 -3961class UnixToTimeStr(Func): -3962 pass -3963 +3961 +3962class UnixToStr(Func): +3963 arg_types = {"this": True, "format": False} 3964 -3965class Upper(Func): -3966 _sql_names = ["UPPER", "UCASE"] -3967 -3968 -3969class Variance(AggFunc): -3970 _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"] -3971 -3972 -3973class VariancePop(AggFunc): -3974 _sql_names = ["VARIANCE_POP", "VAR_POP"] +3965 +3966# https://prestodb.io/docs/current/functions/datetime.html +3967# presto has weird zone/hours/minutes +3968class UnixToTime(Func): +3969 arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False} +3970 +3971 SECONDS = Literal.string("seconds") +3972 MILLIS = Literal.string("millis") +3973 MICROS = Literal.string("micros") +3974 3975 -3976 -3977class Week(Func): -3978 arg_types = {"this": True, "mode": False} +3976class UnixToTimeStr(Func): +3977 pass +3978 3979 -3980 -3981class XMLTable(Func): -3982 arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False} +3980class Upper(Func): +3981 _sql_names = ["UPPER", "UCASE"] +3982 3983 -3984 -3985class Year(Func): -3986 pass +3984class Variance(AggFunc): +3985 _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"] +3986 3987 -3988 -3989class Use(Expression): -3990 arg_types = {"this": True, "kind": False} +3988class VariancePop(AggFunc): +3989 _sql_names = ["VARIANCE_POP", "VAR_POP"] +3990 3991 -3992 -3993class Merge(Expression): -3994 arg_types = {"this": True, "using": True, "on": True, "expressions": True} +3992class Week(Func): +3993 arg_types = {"this": True, "mode": False} +3994 3995 -3996 -3997class When(Func): -3998 arg_types = {"matched": True, "source": False, "condition": False, "then": True} +3996class XMLTable(Func): +3997 arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False} +3998 3999 -4000 -4001def _norm_arg(arg): -4002 return arg.lower() if type(arg) is str else arg +4000class Year(Func): +4001 pass +4002 4003 -4004 -4005ALL_FUNCTIONS = subclasses(__name__, Func, (AggFunc, Anonymous, Func)) +4004class Use(Expression): +4005 arg_types = {"this": True, "kind": False} 4006 4007 -4008# Helpers -4009def maybe_parse( -4010 sql_or_expression: ExpOrStr, -4011 *, -4012 into: t.Optional[IntoType] = None, -4013 dialect: DialectType = None, -4014 prefix: t.Optional[str] = None, -4015 copy: bool = False, -4016 **opts, -4017) -> Expression: -4018 """Gracefully handle a possible string or expression. +4008class Merge(Expression): +4009 arg_types = {"this": True, "using": True, "on": True, "expressions": True} +4010 +4011 +4012class When(Func): +4013 arg_types = {"matched": True, "source": False, "condition": False, "then": True} +4014 +4015 +4016def _norm_arg(arg): +4017 return arg.lower() if type(arg) is str else arg +4018 4019 -4020 Example: -4021 >>> maybe_parse("1") -4022 (LITERAL this: 1, is_string: False) -4023 >>> maybe_parse(to_identifier("x")) -4024 (IDENTIFIER this: x, quoted: False) -4025 -4026 Args: -4027 sql_or_expression: the SQL code string or an expression -4028 into: the SQLGlot Expression to parse into -4029 dialect: the dialect used to parse the input expressions (in the case that an -4030 input expression is a SQL string). -4031 prefix: a string to prefix the sql with before it gets parsed -4032 (automatically includes a space) -4033 copy: whether or not to copy the expression. -4034 **opts: other options to use to parse the input expressions (again, in the case -4035 that an input expression is a SQL string). -4036 -4037 Returns: -4038 Expression: the parsed or given expression. -4039 """ -4040 if isinstance(sql_or_expression, Expression): -4041 if copy: -4042 return sql_or_expression.copy() -4043 return sql_or_expression -4044 -4045 import sqlglot -4046 -4047 sql = str(sql_or_expression) -4048 if prefix: -4049 sql = f"{prefix} {sql}" -4050 return sqlglot.parse_one(sql, read=dialect, into=into, **opts) +4020ALL_FUNCTIONS = subclasses(__name__, Func, (AggFunc, Anonymous, Func)) +4021 +4022 +4023# Helpers +4024def maybe_parse( +4025 sql_or_expression: ExpOrStr, +4026 *, +4027 into: t.Optional[IntoType] = None, +4028 dialect: DialectType = None, +4029 prefix: t.Optional[str] = None, +4030 copy: bool = False, +4031 **opts, +4032) -> Expression: +4033 """Gracefully handle a possible string or expression. +4034 +4035 Example: +4036 >>> maybe_parse("1") +4037 (LITERAL this: 1, is_string: False) +4038 >>> maybe_parse(to_identifier("x")) +4039 (IDENTIFIER this: x, quoted: False) +4040 +4041 Args: +4042 sql_or_expression: the SQL code string or an expression +4043 into: the SQLGlot Expression to parse into +4044 dialect: the dialect used to parse the input expressions (in the case that an +4045 input expression is a SQL string). +4046 prefix: a string to prefix the sql with before it gets parsed +4047 (automatically includes a space) +4048 copy: whether or not to copy the expression. +4049 **opts: other options to use to parse the input expressions (again, in the case +4050 that an input expression is a SQL string). 4051 -4052 -4053def _maybe_copy(instance, copy=True): -4054 return instance.copy() if copy else instance -4055 -4056 -4057def _is_wrong_expression(expression, into): -4058 return isinstance(expression, Expression) and not isinstance(expression, into) +4052 Returns: +4053 Expression: the parsed or given expression. +4054 """ +4055 if isinstance(sql_or_expression, Expression): +4056 if copy: +4057 return sql_or_expression.copy() +4058 return sql_or_expression 4059 -4060 -4061def _apply_builder( -4062 expression, -4063 instance, -4064 arg, -4065 copy=True, -4066 prefix=None, -4067 into=None, -4068 dialect=None, -4069 **opts, -4070): -4071 if _is_wrong_expression(expression, into): -4072 expression = into(this=expression) -4073 instance = _maybe_copy(instance, copy) -4074 expression = maybe_parse( -4075 sql_or_expression=expression, -4076 prefix=prefix, -4077 into=into, -4078 dialect=dialect, -4079 **opts, -4080 ) -4081 instance.set(arg, expression) -4082 return instance -4083 -4084 -4085def _apply_child_list_builder( -4086 *expressions, -4087 instance, -4088 arg, -4089 append=True, -4090 copy=True, -4091 prefix=None, -4092 into=None, -4093 dialect=None, -4094 properties=None, -4095 **opts, -4096): -4097 instance = _maybe_copy(instance, copy) -4098 parsed = [] -4099 for expression in expressions: -4100 if _is_wrong_expression(expression, into): -4101 expression = into(expressions=[expression]) -4102 expression = maybe_parse( -4103 expression, -4104 into=into, -4105 dialect=dialect, -4106 prefix=prefix, -4107 **opts, -4108 ) -4109 parsed.extend(expression.expressions) -4110 -4111 existing = instance.args.get(arg) -4112 if append and existing: -4113 parsed = existing.expressions + parsed -4114 -4115 child = into(expressions=parsed) -4116 for k, v in (properties or {}).items(): -4117 child.set(k, v) -4118 instance.set(arg, child) -4119 return instance -4120 -4121 -4122def _apply_list_builder( -4123 *expressions, -4124 instance, -4125 arg, -4126 append=True, -4127 copy=True, -4128 prefix=None, -4129 into=None, -4130 dialect=None, -4131 **opts, -4132): -4133 inst = _maybe_copy(instance, copy) -4134 -4135 expressions = [ -4136 maybe_parse( -4137 sql_or_expression=expression, -4138 into=into, -4139 prefix=prefix, -4140 dialect=dialect, -4141 **opts, -4142 ) -4143 for expression in expressions -4144 ] -4145 -4146 existing_expressions = inst.args.get(arg) -4147 if append and existing_expressions: -4148 expressions = existing_expressions + expressions +4060 import sqlglot +4061 +4062 sql = str(sql_or_expression) +4063 if prefix: +4064 sql = f"{prefix} {sql}" +4065 return sqlglot.parse_one(sql, read=dialect, into=into, **opts) +4066 +4067 +4068def _maybe_copy(instance, copy=True): +4069 return instance.copy() if copy else instance +4070 +4071 +4072def _is_wrong_expression(expression, into): +4073 return isinstance(expression, Expression) and not isinstance(expression, into) +4074 +4075 +4076def _apply_builder( +4077 expression, +4078 instance, +4079 arg, +4080 copy=True, +4081 prefix=None, +4082 into=None, +4083 dialect=None, +4084 **opts, +4085): +4086 if _is_wrong_expression(expression, into): +4087 expression = into(this=expression) +4088 instance = _maybe_copy(instance, copy) +4089 expression = maybe_parse( +4090 sql_or_expression=expression, +4091 prefix=prefix, +4092 into=into, +4093 dialect=dialect, +4094 **opts, +4095 ) +4096 instance.set(arg, expression) +4097 return instance +4098 +4099 +4100def _apply_child_list_builder( +4101 *expressions, +4102 instance, +4103 arg, +4104 append=True, +4105 copy=True, +4106 prefix=None, +4107 into=None, +4108 dialect=None, +4109 properties=None, +4110 **opts, +4111): +4112 instance = _maybe_copy(instance, copy) +4113 parsed = [] +4114 for expression in expressions: +4115 if _is_wrong_expression(expression, into): +4116 expression = into(expressions=[expression]) +4117 expression = maybe_parse( +4118 expression, +4119 into=into, +4120 dialect=dialect, +4121 prefix=prefix, +4122 **opts, +4123 ) +4124 parsed.extend(expression.expressions) +4125 +4126 existing = instance.args.get(arg) +4127 if append and existing: +4128 parsed = existing.expressions + parsed +4129 +4130 child = into(expressions=parsed) +4131 for k, v in (properties or {}).items(): +4132 child.set(k, v) +4133 instance.set(arg, child) +4134 return instance +4135 +4136 +4137def _apply_list_builder( +4138 *expressions, +4139 instance, +4140 arg, +4141 append=True, +4142 copy=True, +4143 prefix=None, +4144 into=None, +4145 dialect=None, +4146 **opts, +4147): +4148 inst = _maybe_copy(instance, copy) 4149 -4150 inst.set(arg, expressions) -4151 return inst -4152 -4153 -4154def _apply_conjunction_builder( -4155 *expressions, -4156 instance, -4157 arg, -4158 into=None, -4159 append=True, -4160 copy=True, -4161 dialect=None, -4162 **opts, -4163): -4164 expressions = [exp for exp in expressions if exp is not None and exp != ""] -4165 if not expressions: -4166 return instance +4150 expressions = [ +4151 maybe_parse( +4152 sql_or_expression=expression, +4153 into=into, +4154 prefix=prefix, +4155 dialect=dialect, +4156 **opts, +4157 ) +4158 for expression in expressions +4159 ] +4160 +4161 existing_expressions = inst.args.get(arg) +4162 if append and existing_expressions: +4163 expressions = existing_expressions + expressions +4164 +4165 inst.set(arg, expressions) +4166 return inst 4167 -4168 inst = _maybe_copy(instance, copy) -4169 -4170 existing = inst.args.get(arg) -4171 if append and existing is not None: -4172 expressions = [existing.this if into else existing] + list(expressions) -4173 -4174 node = and_(*expressions, dialect=dialect, **opts) -4175 -4176 inst.set(arg, into(this=node) if into else node) -4177 return inst -4178 -4179 -4180def _combine(expressions, operator, dialect=None, **opts): -4181 expressions = [condition(expression, dialect=dialect, **opts) for expression in expressions] -4182 this = expressions[0] -4183 if expressions[1:]: -4184 this = _wrap_operator(this) -4185 for expression in expressions[1:]: -4186 this = operator(this=this, expression=_wrap_operator(expression)) -4187 return this +4168 +4169def _apply_conjunction_builder( +4170 *expressions, +4171 instance, +4172 arg, +4173 into=None, +4174 append=True, +4175 copy=True, +4176 dialect=None, +4177 **opts, +4178): +4179 expressions = [exp for exp in expressions if exp is not None and exp != ""] +4180 if not expressions: +4181 return instance +4182 +4183 inst = _maybe_copy(instance, copy) +4184 +4185 existing = inst.args.get(arg) +4186 if append and existing is not None: +4187 expressions = [existing.this if into else existing] + list(expressions) 4188 -4189 -4190def _wrap_operator(expression): -4191 if isinstance(expression, (And, Or, Not)): -4192 expression = Paren(this=expression) -4193 return expression +4189 node = and_(*expressions, dialect=dialect, **opts) +4190 +4191 inst.set(arg, into(this=node) if into else node) +4192 return inst +4193 4194 -4195 -4196def union(left, right, distinct=True, dialect=None, **opts): -4197 """ -4198 Initializes a syntax tree from one UNION expression. -4199 -4200 Example: -4201 >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql() -4202 'SELECT * FROM foo UNION SELECT * FROM bla' +4195def _combine(expressions, operator, dialect=None, **opts): +4196 expressions = [condition(expression, dialect=dialect, **opts) for expression in expressions] +4197 this = expressions[0] +4198 if expressions[1:]: +4199 this = _wrap_operator(this) +4200 for expression in expressions[1:]: +4201 this = operator(this=this, expression=_wrap_operator(expression)) +4202 return this 4203 -4204 Args: -4205 left (str | Expression): the SQL code string corresponding to the left-hand side. -4206 If an `Expression` instance is passed, it will be used as-is. -4207 right (str | Expression): the SQL code string corresponding to the right-hand side. -4208 If an `Expression` instance is passed, it will be used as-is. -4209 distinct (bool): set the DISTINCT flag if and only if this is true. -4210 dialect (str): the dialect used to parse the input expression. -4211 opts (kwargs): other options to use to parse the input expressions. -4212 Returns: -4213 Union: the syntax tree for the UNION expression. -4214 """ -4215 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) -4216 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) -4217 -4218 return Union(this=left, expression=right, distinct=distinct) -4219 -4220 -4221def intersect(left, right, distinct=True, dialect=None, **opts): -4222 """ -4223 Initializes a syntax tree from one INTERSECT expression. -4224 -4225 Example: -4226 >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql() -4227 'SELECT * FROM foo INTERSECT SELECT * FROM bla' -4228 -4229 Args: -4230 left (str | Expression): the SQL code string corresponding to the left-hand side. -4231 If an `Expression` instance is passed, it will be used as-is. -4232 right (str | Expression): the SQL code string corresponding to the right-hand side. -4233 If an `Expression` instance is passed, it will be used as-is. -4234 distinct (bool): set the DISTINCT flag if and only if this is true. -4235 dialect (str): the dialect used to parse the input expression. -4236 opts (kwargs): other options to use to parse the input expressions. -4237 Returns: -4238 Intersect: the syntax tree for the INTERSECT expression. -4239 """ -4240 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) -4241 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) -4242 -4243 return Intersect(this=left, expression=right, distinct=distinct) -4244 -4245 -4246def except_(left, right, distinct=True, dialect=None, **opts): -4247 """ -4248 Initializes a syntax tree from one EXCEPT expression. -4249 -4250 Example: -4251 >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql() -4252 'SELECT * FROM foo EXCEPT SELECT * FROM bla' -4253 -4254 Args: -4255 left (str | Expression): the SQL code string corresponding to the left-hand side. -4256 If an `Expression` instance is passed, it will be used as-is. -4257 right (str | Expression): the SQL code string corresponding to the right-hand side. -4258 If an `Expression` instance is passed, it will be used as-is. -4259 distinct (bool): set the DISTINCT flag if and only if this is true. -4260 dialect (str): the dialect used to parse the input expression. -4261 opts (kwargs): other options to use to parse the input expressions. -4262 Returns: -4263 Except: the syntax tree for the EXCEPT statement. -4264 """ -4265 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) -4266 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) -4267 -4268 return Except(this=left, expression=right, distinct=distinct) -4269 -4270 -4271def select(*expressions: ExpOrStr, dialect: DialectType = None, **opts) -> Select: -4272 """ -4273 Initializes a syntax tree from one or multiple SELECT expressions. -4274 -4275 Example: -4276 >>> select("col1", "col2").from_("tbl").sql() -4277 'SELECT col1, col2 FROM tbl' -4278 -4279 Args: -4280 *expressions: the SQL code string to parse as the expressions of a -4281 SELECT statement. If an Expression instance is passed, this is used as-is. -4282 dialect: the dialect used to parse the input expressions (in the case that an -4283 input expression is a SQL string). -4284 **opts: other options to use to parse the input expressions (again, in the case -4285 that an input expression is a SQL string). -4286 -4287 Returns: -4288 Select: the syntax tree for the SELECT statement. -4289 """ -4290 return Select().select(*expressions, dialect=dialect, **opts) -4291 -4292 -4293def from_(*expressions, dialect=None, **opts) -> Select: -4294 """ -4295 Initializes a syntax tree from a FROM expression. -4296 -4297 Example: -4298 >>> from_("tbl").select("col1", "col2").sql() -4299 'SELECT col1, col2 FROM tbl' -4300 -4301 Args: -4302 *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a -4303 SELECT statement. If an Expression instance is passed, this is used as-is. -4304 dialect (str): the dialect used to parse the input expression (in the case that the -4305 input expression is a SQL string). -4306 **opts: other options to use to parse the input expressions (again, in the case -4307 that the input expression is a SQL string). -4308 -4309 Returns: -4310 Select: the syntax tree for the SELECT statement. -4311 """ -4312 return Select().from_(*expressions, dialect=dialect, **opts) -4313 -4314 -4315def update( -4316 table: str | Table, -4317 properties: dict, -4318 where: t.Optional[ExpOrStr] = None, -4319 from_: t.Optional[ExpOrStr] = None, -4320 dialect: DialectType = None, -4321 **opts, -4322) -> Update: -4323 """ -4324 Creates an update statement. -4325 -4326 Example: -4327 >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql() -4328 "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1" +4204 +4205def _wrap_operator(expression): +4206 if isinstance(expression, (And, Or, Not)): +4207 expression = Paren(this=expression) +4208 return expression +4209 +4210 +4211def union(left, right, distinct=True, dialect=None, **opts): +4212 """ +4213 Initializes a syntax tree from one UNION expression. +4214 +4215 Example: +4216 >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql() +4217 'SELECT * FROM foo UNION SELECT * FROM bla' +4218 +4219 Args: +4220 left (str | Expression): the SQL code string corresponding to the left-hand side. +4221 If an `Expression` instance is passed, it will be used as-is. +4222 right (str | Expression): the SQL code string corresponding to the right-hand side. +4223 If an `Expression` instance is passed, it will be used as-is. +4224 distinct (bool): set the DISTINCT flag if and only if this is true. +4225 dialect (str): the dialect used to parse the input expression. +4226 opts (kwargs): other options to use to parse the input expressions. +4227 Returns: +4228 Union: the syntax tree for the UNION expression. +4229 """ +4230 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4231 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4232 +4233 return Union(this=left, expression=right, distinct=distinct) +4234 +4235 +4236def intersect(left, right, distinct=True, dialect=None, **opts): +4237 """ +4238 Initializes a syntax tree from one INTERSECT expression. +4239 +4240 Example: +4241 >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql() +4242 'SELECT * FROM foo INTERSECT SELECT * FROM bla' +4243 +4244 Args: +4245 left (str | Expression): the SQL code string corresponding to the left-hand side. +4246 If an `Expression` instance is passed, it will be used as-is. +4247 right (str | Expression): the SQL code string corresponding to the right-hand side. +4248 If an `Expression` instance is passed, it will be used as-is. +4249 distinct (bool): set the DISTINCT flag if and only if this is true. +4250 dialect (str): the dialect used to parse the input expression. +4251 opts (kwargs): other options to use to parse the input expressions. +4252 Returns: +4253 Intersect: the syntax tree for the INTERSECT expression. +4254 """ +4255 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4256 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4257 +4258 return Intersect(this=left, expression=right, distinct=distinct) +4259 +4260 +4261def except_(left, right, distinct=True, dialect=None, **opts): +4262 """ +4263 Initializes a syntax tree from one EXCEPT expression. +4264 +4265 Example: +4266 >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql() +4267 'SELECT * FROM foo EXCEPT SELECT * FROM bla' +4268 +4269 Args: +4270 left (str | Expression): the SQL code string corresponding to the left-hand side. +4271 If an `Expression` instance is passed, it will be used as-is. +4272 right (str | Expression): the SQL code string corresponding to the right-hand side. +4273 If an `Expression` instance is passed, it will be used as-is. +4274 distinct (bool): set the DISTINCT flag if and only if this is true. +4275 dialect (str): the dialect used to parse the input expression. +4276 opts (kwargs): other options to use to parse the input expressions. +4277 Returns: +4278 Except: the syntax tree for the EXCEPT statement. +4279 """ +4280 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4281 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4282 +4283 return Except(this=left, expression=right, distinct=distinct) +4284 +4285 +4286def select(*expressions: ExpOrStr, dialect: DialectType = None, **opts) -> Select: +4287 """ +4288 Initializes a syntax tree from one or multiple SELECT expressions. +4289 +4290 Example: +4291 >>> select("col1", "col2").from_("tbl").sql() +4292 'SELECT col1, col2 FROM tbl' +4293 +4294 Args: +4295 *expressions: the SQL code string to parse as the expressions of a +4296 SELECT statement. If an Expression instance is passed, this is used as-is. +4297 dialect: the dialect used to parse the input expressions (in the case that an +4298 input expression is a SQL string). +4299 **opts: other options to use to parse the input expressions (again, in the case +4300 that an input expression is a SQL string). +4301 +4302 Returns: +4303 Select: the syntax tree for the SELECT statement. +4304 """ +4305 return Select().select(*expressions, dialect=dialect, **opts) +4306 +4307 +4308def from_(*expressions, dialect=None, **opts) -> Select: +4309 """ +4310 Initializes a syntax tree from a FROM expression. +4311 +4312 Example: +4313 >>> from_("tbl").select("col1", "col2").sql() +4314 'SELECT col1, col2 FROM tbl' +4315 +4316 Args: +4317 *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a +4318 SELECT statement. If an Expression instance is passed, this is used as-is. +4319 dialect (str): the dialect used to parse the input expression (in the case that the +4320 input expression is a SQL string). +4321 **opts: other options to use to parse the input expressions (again, in the case +4322 that the input expression is a SQL string). +4323 +4324 Returns: +4325 Select: the syntax tree for the SELECT statement. +4326 """ +4327 return Select().from_(*expressions, dialect=dialect, **opts) +4328 4329 -4330 Args: -4331 *properties: dictionary of properties to set which are -4332 auto converted to sql objects eg None -> NULL -4333 where: sql conditional parsed into a WHERE statement -4334 from_: sql statement parsed into a FROM statement -4335 dialect: the dialect used to parse the input expressions. -4336 **opts: other options to use to parse the input expressions. -4337 -4338 Returns: -4339 Update: the syntax tree for the UPDATE statement. -4340 """ -4341 update_expr = Update(this=maybe_parse(table, into=Table, dialect=dialect)) -4342 update_expr.set( -4343 "expressions", -4344 [ -4345 EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v)) -4346 for k, v in properties.items() -4347 ], -4348 ) -4349 if from_: -4350 update_expr.set( -4351 "from", -4352 maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts), -4353 ) -4354 if isinstance(where, Condition): -4355 where = Where(this=where) -4356 if where: -4357 update_expr.set( -4358 "where", -4359 maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts), -4360 ) -4361 return update_expr -4362 -4363 -4364def delete( -4365 table: ExpOrStr, -4366 where: t.Optional[ExpOrStr] = None, -4367 returning: t.Optional[ExpOrStr] = None, -4368 dialect: DialectType = None, -4369 **opts, -4370) -> Delete: -4371 """ -4372 Builds a delete statement. -4373 -4374 Example: -4375 >>> delete("my_table", where="id > 1").sql() -4376 'DELETE FROM my_table WHERE id > 1' +4330def update( +4331 table: str | Table, +4332 properties: dict, +4333 where: t.Optional[ExpOrStr] = None, +4334 from_: t.Optional[ExpOrStr] = None, +4335 dialect: DialectType = None, +4336 **opts, +4337) -> Update: +4338 """ +4339 Creates an update statement. +4340 +4341 Example: +4342 >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql() +4343 "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1" +4344 +4345 Args: +4346 *properties: dictionary of properties to set which are +4347 auto converted to sql objects eg None -> NULL +4348 where: sql conditional parsed into a WHERE statement +4349 from_: sql statement parsed into a FROM statement +4350 dialect: the dialect used to parse the input expressions. +4351 **opts: other options to use to parse the input expressions. +4352 +4353 Returns: +4354 Update: the syntax tree for the UPDATE statement. +4355 """ +4356 update_expr = Update(this=maybe_parse(table, into=Table, dialect=dialect)) +4357 update_expr.set( +4358 "expressions", +4359 [ +4360 EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v)) +4361 for k, v in properties.items() +4362 ], +4363 ) +4364 if from_: +4365 update_expr.set( +4366 "from", +4367 maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts), +4368 ) +4369 if isinstance(where, Condition): +4370 where = Where(this=where) +4371 if where: +4372 update_expr.set( +4373 "where", +4374 maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts), +4375 ) +4376 return update_expr 4377 -4378 Args: -4379 where: sql conditional parsed into a WHERE statement -4380 returning: sql conditional parsed into a RETURNING statement -4381 dialect: the dialect used to parse the input expressions. -4382 **opts: other options to use to parse the input expressions. -4383 -4384 Returns: -4385 Delete: the syntax tree for the DELETE statement. -4386 """ -4387 delete_expr = Delete().delete(table, dialect=dialect, copy=False, **opts) -4388 if where: -4389 delete_expr = delete_expr.where(where, dialect=dialect, copy=False, **opts) -4390 if returning: -4391 delete_expr = delete_expr.returning(returning, dialect=dialect, copy=False, **opts) -4392 return delete_expr -4393 -4394 -4395def condition(expression, dialect=None, **opts) -> Condition: -4396 """ -4397 Initialize a logical condition expression. +4378 +4379def delete( +4380 table: ExpOrStr, +4381 where: t.Optional[ExpOrStr] = None, +4382 returning: t.Optional[ExpOrStr] = None, +4383 dialect: DialectType = None, +4384 **opts, +4385) -> Delete: +4386 """ +4387 Builds a delete statement. +4388 +4389 Example: +4390 >>> delete("my_table", where="id > 1").sql() +4391 'DELETE FROM my_table WHERE id > 1' +4392 +4393 Args: +4394 where: sql conditional parsed into a WHERE statement +4395 returning: sql conditional parsed into a RETURNING statement +4396 dialect: the dialect used to parse the input expressions. +4397 **opts: other options to use to parse the input expressions. 4398 -4399 Example: -4400 >>> condition("x=1").sql() -4401 'x = 1' -4402 -4403 This is helpful for composing larger logical syntax trees: -4404 >>> where = condition("x=1") -4405 >>> where = where.and_("y=1") -4406 >>> Select().from_("tbl").select("*").where(where).sql() -4407 'SELECT * FROM tbl WHERE x = 1 AND y = 1' +4399 Returns: +4400 Delete: the syntax tree for the DELETE statement. +4401 """ +4402 delete_expr = Delete().delete(table, dialect=dialect, copy=False, **opts) +4403 if where: +4404 delete_expr = delete_expr.where(where, dialect=dialect, copy=False, **opts) +4405 if returning: +4406 delete_expr = delete_expr.returning(returning, dialect=dialect, copy=False, **opts) +4407 return delete_expr 4408 -4409 Args: -4410 *expression (str | Expression): the SQL code string to parse. -4411 If an Expression instance is passed, this is used as-is. -4412 dialect (str): the dialect used to parse the input expression (in the case that the -4413 input expression is a SQL string). -4414 **opts: other options to use to parse the input expressions (again, in the case -4415 that the input expression is a SQL string). -4416 -4417 Returns: -4418 Condition: the expression -4419 """ -4420 return maybe_parse( # type: ignore -4421 expression, -4422 into=Condition, -4423 dialect=dialect, -4424 **opts, -4425 ) -4426 -4427 -4428def and_(*expressions, dialect=None, **opts) -> And: -4429 """ -4430 Combine multiple conditions with an AND logical operator. +4409 +4410def condition(expression, dialect=None, **opts) -> Condition: +4411 """ +4412 Initialize a logical condition expression. +4413 +4414 Example: +4415 >>> condition("x=1").sql() +4416 'x = 1' +4417 +4418 This is helpful for composing larger logical syntax trees: +4419 >>> where = condition("x=1") +4420 >>> where = where.and_("y=1") +4421 >>> Select().from_("tbl").select("*").where(where).sql() +4422 'SELECT * FROM tbl WHERE x = 1 AND y = 1' +4423 +4424 Args: +4425 *expression (str | Expression): the SQL code string to parse. +4426 If an Expression instance is passed, this is used as-is. +4427 dialect (str): the dialect used to parse the input expression (in the case that the +4428 input expression is a SQL string). +4429 **opts: other options to use to parse the input expressions (again, in the case +4430 that the input expression is a SQL string). 4431 -4432 Example: -4433 >>> and_("x=1", and_("y=1", "z=1")).sql() -4434 'x = 1 AND (y = 1 AND z = 1)' -4435 -4436 Args: -4437 *expressions (str | Expression): the SQL code strings to parse. -4438 If an Expression instance is passed, this is used as-is. -4439 dialect (str): the dialect used to parse the input expression. -4440 **opts: other options to use to parse the input expressions. +4432 Returns: +4433 Condition: the expression +4434 """ +4435 return maybe_parse( # type: ignore +4436 expression, +4437 into=Condition, +4438 dialect=dialect, +4439 **opts, +4440 ) 4441 -4442 Returns: -4443 And: the new condition -4444 """ -4445 return _combine(expressions, And, dialect, **opts) +4442 +4443def and_(*expressions, dialect=None, **opts) -> And: +4444 """ +4445 Combine multiple conditions with an AND logical operator. 4446 -4447 -4448def or_(*expressions, dialect=None, **opts) -> Or: -4449 """ -4450 Combine multiple conditions with an OR logical operator. -4451 -4452 Example: -4453 >>> or_("x=1", or_("y=1", "z=1")).sql() -4454 'x = 1 OR (y = 1 OR z = 1)' -4455 -4456 Args: -4457 *expressions (str | Expression): the SQL code strings to parse. -4458 If an Expression instance is passed, this is used as-is. -4459 dialect (str): the dialect used to parse the input expression. -4460 **opts: other options to use to parse the input expressions. +4447 Example: +4448 >>> and_("x=1", and_("y=1", "z=1")).sql() +4449 'x = 1 AND (y = 1 AND z = 1)' +4450 +4451 Args: +4452 *expressions (str | Expression): the SQL code strings to parse. +4453 If an Expression instance is passed, this is used as-is. +4454 dialect (str): the dialect used to parse the input expression. +4455 **opts: other options to use to parse the input expressions. +4456 +4457 Returns: +4458 And: the new condition +4459 """ +4460 return _combine(expressions, And, dialect, **opts) 4461 -4462 Returns: -4463 Or: the new condition -4464 """ -4465 return _combine(expressions, Or, dialect, **opts) +4462 +4463def or_(*expressions, dialect=None, **opts) -> Or: +4464 """ +4465 Combine multiple conditions with an OR logical operator. 4466 -4467 -4468def not_(expression, dialect=None, **opts) -> Not: -4469 """ -4470 Wrap a condition with a NOT operator. -4471 -4472 Example: -4473 >>> not_("this_suit='black'").sql() -4474 "NOT this_suit = 'black'" -4475 -4476 Args: -4477 expression (str | Expression): the SQL code strings to parse. -4478 If an Expression instance is passed, this is used as-is. -4479 dialect (str): the dialect used to parse the input expression. -4480 **opts: other options to use to parse the input expressions. +4467 Example: +4468 >>> or_("x=1", or_("y=1", "z=1")).sql() +4469 'x = 1 OR (y = 1 OR z = 1)' +4470 +4471 Args: +4472 *expressions (str | Expression): the SQL code strings to parse. +4473 If an Expression instance is passed, this is used as-is. +4474 dialect (str): the dialect used to parse the input expression. +4475 **opts: other options to use to parse the input expressions. +4476 +4477 Returns: +4478 Or: the new condition +4479 """ +4480 return _combine(expressions, Or, dialect, **opts) 4481 -4482 Returns: -4483 Not: the new condition -4484 """ -4485 this = condition( -4486 expression, -4487 dialect=dialect, -4488 **opts, -4489 ) -4490 return Not(this=_wrap_operator(this)) -4491 -4492 -4493def paren(expression) -> Paren: -4494 return Paren(this=expression) -4495 +4482 +4483def not_(expression, dialect=None, **opts) -> Not: +4484 """ +4485 Wrap a condition with a NOT operator. +4486 +4487 Example: +4488 >>> not_("this_suit='black'").sql() +4489 "NOT this_suit = 'black'" +4490 +4491 Args: +4492 expression (str | Expression): the SQL code strings to parse. +4493 If an Expression instance is passed, this is used as-is. +4494 dialect (str): the dialect used to parse the input expression. +4495 **opts: other options to use to parse the input expressions. 4496 -4497SAFE_IDENTIFIER_RE = re.compile(r"^[_a-zA-Z][\w]*$") -4498 -4499 -4500@t.overload -4501def to_identifier(name: None, quoted: t.Optional[bool] = None) -> None: -4502 ... -4503 -4504 -4505@t.overload -4506def to_identifier(name: str | Identifier, quoted: t.Optional[bool] = None) -> Identifier: -4507 ... -4508 -4509 -4510def to_identifier(name, quoted=None): -4511 """Builds an identifier. -4512 -4513 Args: -4514 name: The name to turn into an identifier. -4515 quoted: Whether or not force quote the identifier. -4516 -4517 Returns: -4518 The identifier ast node. -4519 """ -4520 -4521 if name is None: -4522 return None +4497 Returns: +4498 Not: the new condition +4499 """ +4500 this = condition( +4501 expression, +4502 dialect=dialect, +4503 **opts, +4504 ) +4505 return Not(this=_wrap_operator(this)) +4506 +4507 +4508def paren(expression) -> Paren: +4509 return Paren(this=expression) +4510 +4511 +4512SAFE_IDENTIFIER_RE = re.compile(r"^[_a-zA-Z][\w]*$") +4513 +4514 +4515@t.overload +4516def to_identifier(name: None, quoted: t.Optional[bool] = None) -> None: +4517 ... +4518 +4519 +4520@t.overload +4521def to_identifier(name: str | Identifier, quoted: t.Optional[bool] = None) -> Identifier: +4522 ... 4523 -4524 if isinstance(name, Identifier): -4525 identifier = name -4526 elif isinstance(name, str): -4527 identifier = Identifier( -4528 this=name, -4529 quoted=not SAFE_IDENTIFIER_RE.match(name) if quoted is None else quoted, -4530 ) -4531 else: -4532 raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}") -4533 return identifier -4534 +4524 +4525def to_identifier(name, quoted=None): +4526 """Builds an identifier. +4527 +4528 Args: +4529 name: The name to turn into an identifier. +4530 quoted: Whether or not force quote the identifier. +4531 +4532 Returns: +4533 The identifier ast node. +4534 """ 4535 -4536INTERVAL_STRING_RE = re.compile(r"\s*([0-9]+)\s*([a-zA-Z]+)\s*") -4537 +4536 if name is None: +4537 return None 4538 -4539def to_interval(interval: str | Literal) -> Interval: -4540 """Builds an interval expression from a string like '1 day' or '5 months'.""" -4541 if isinstance(interval, Literal): -4542 if not interval.is_string: -4543 raise ValueError("Invalid interval string.") -4544 -4545 interval = interval.this -4546 -4547 interval_parts = INTERVAL_STRING_RE.match(interval) # type: ignore -4548 -4549 if not interval_parts: -4550 raise ValueError("Invalid interval string.") -4551 -4552 return Interval( -4553 this=Literal.string(interval_parts.group(1)), -4554 unit=Var(this=interval_parts.group(2)), -4555 ) -4556 -4557 -4558@t.overload -4559def to_table(sql_path: str | Table, **kwargs) -> Table: -4560 ... +4539 if isinstance(name, Identifier): +4540 identifier = name +4541 elif isinstance(name, str): +4542 identifier = Identifier( +4543 this=name, +4544 quoted=not SAFE_IDENTIFIER_RE.match(name) if quoted is None else quoted, +4545 ) +4546 else: +4547 raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}") +4548 return identifier +4549 +4550 +4551INTERVAL_STRING_RE = re.compile(r"\s*([0-9]+)\s*([a-zA-Z]+)\s*") +4552 +4553 +4554def to_interval(interval: str | Literal) -> Interval: +4555 """Builds an interval expression from a string like '1 day' or '5 months'.""" +4556 if isinstance(interval, Literal): +4557 if not interval.is_string: +4558 raise ValueError("Invalid interval string.") +4559 +4560 interval = interval.this 4561 -4562 -4563@t.overload -4564def to_table(sql_path: None, **kwargs) -> None: -4565 ... +4562 interval_parts = INTERVAL_STRING_RE.match(interval) # type: ignore +4563 +4564 if not interval_parts: +4565 raise ValueError("Invalid interval string.") 4566 -4567 -4568def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]: -4569 """ -4570 Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional. -4571 If a table is passed in then that table is returned. +4567 return Interval( +4568 this=Literal.string(interval_parts.group(1)), +4569 unit=Var(this=interval_parts.group(2)), +4570 ) +4571 4572 -4573 Args: -4574 sql_path: a `[catalog].[schema].[table]` string. -4575 -4576 Returns: -4577 A table expression. -4578 """ -4579 if sql_path is None or isinstance(sql_path, Table): -4580 return sql_path -4581 if not isinstance(sql_path, str): -4582 raise ValueError(f"Invalid type provided for a table: {type(sql_path)}") -4583 -4584 catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3)) -4585 return Table(this=table_name, db=db, catalog=catalog, **kwargs) -4586 +4573@t.overload +4574def to_table(sql_path: str | Table, **kwargs) -> Table: +4575 ... +4576 +4577 +4578@t.overload +4579def to_table(sql_path: None, **kwargs) -> None: +4580 ... +4581 +4582 +4583def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]: +4584 """ +4585 Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional. +4586 If a table is passed in then that table is returned. 4587 -4588def to_column(sql_path: str | Column, **kwargs) -> Column: -4589 """ -4590 Create a column from a `[table].[column]` sql path. Schema is optional. -4591 -4592 If a column is passed in then that column is returned. -4593 -4594 Args: -4595 sql_path: `[table].[column]` string -4596 Returns: -4597 Table: A column expression -4598 """ -4599 if sql_path is None or isinstance(sql_path, Column): -4600 return sql_path -4601 if not isinstance(sql_path, str): -4602 raise ValueError(f"Invalid type provided for column: {type(sql_path)}") -4603 return column(*reversed(sql_path.split(".")), **kwargs) # type: ignore -4604 -4605 -4606def alias_( -4607 expression: ExpOrStr, -4608 alias: str | Identifier, -4609 table: bool | t.Sequence[str | Identifier] = False, -4610 quoted: t.Optional[bool] = None, -4611 dialect: DialectType = None, -4612 **opts, -4613): -4614 """Create an Alias expression. -4615 -4616 Example: -4617 >>> alias_('foo', 'bar').sql() -4618 'foo AS bar' +4588 Args: +4589 sql_path: a `[catalog].[schema].[table]` string. +4590 +4591 Returns: +4592 A table expression. +4593 """ +4594 if sql_path is None or isinstance(sql_path, Table): +4595 return sql_path +4596 if not isinstance(sql_path, str): +4597 raise ValueError(f"Invalid type provided for a table: {type(sql_path)}") +4598 +4599 catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3)) +4600 return Table(this=table_name, db=db, catalog=catalog, **kwargs) +4601 +4602 +4603def to_column(sql_path: str | Column, **kwargs) -> Column: +4604 """ +4605 Create a column from a `[table].[column]` sql path. Schema is optional. +4606 +4607 If a column is passed in then that column is returned. +4608 +4609 Args: +4610 sql_path: `[table].[column]` string +4611 Returns: +4612 Table: A column expression +4613 """ +4614 if sql_path is None or isinstance(sql_path, Column): +4615 return sql_path +4616 if not isinstance(sql_path, str): +4617 raise ValueError(f"Invalid type provided for column: {type(sql_path)}") +4618 return column(*reversed(sql_path.split(".")), **kwargs) # type: ignore 4619 -4620 >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql() -4621 '(SELECT 1, 2) AS bar(a, b)' -4622 -4623 Args: -4624 expression: the SQL code strings to parse. -4625 If an Expression instance is passed, this is used as-is. -4626 alias: the alias name to use. If the name has -4627 special characters it is quoted. -4628 table: Whether or not to create a table alias, can also be a list of columns. -4629 quoted: whether or not to quote the alias -4630 dialect: the dialect used to parse the input expression. -4631 **opts: other options to use to parse the input expressions. -4632 -4633 Returns: -4634 Alias: the aliased expression -4635 """ -4636 exp = maybe_parse(expression, dialect=dialect, **opts) -4637 alias = to_identifier(alias, quoted=quoted) -4638 -4639 if table: -4640 table_alias = TableAlias(this=alias) -4641 exp.set("alias", table_alias) -4642 -4643 if not isinstance(table, bool): -4644 for column in table: -4645 table_alias.append("columns", to_identifier(column, quoted=quoted)) -4646 -4647 return exp -4648 -4649 # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in -4650 # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node -4651 # for the complete Window expression. -4652 # -4653 # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls -4654 -4655 if "alias" in exp.arg_types and not isinstance(exp, Window): -4656 exp = exp.copy() -4657 exp.set("alias", alias) -4658 return exp -4659 return Alias(this=exp, alias=alias) -4660 +4620 +4621def alias_( +4622 expression: ExpOrStr, +4623 alias: str | Identifier, +4624 table: bool | t.Sequence[str | Identifier] = False, +4625 quoted: t.Optional[bool] = None, +4626 dialect: DialectType = None, +4627 **opts, +4628): +4629 """Create an Alias expression. +4630 +4631 Example: +4632 >>> alias_('foo', 'bar').sql() +4633 'foo AS bar' +4634 +4635 >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql() +4636 '(SELECT 1, 2) AS bar(a, b)' +4637 +4638 Args: +4639 expression: the SQL code strings to parse. +4640 If an Expression instance is passed, this is used as-is. +4641 alias: the alias name to use. If the name has +4642 special characters it is quoted. +4643 table: Whether or not to create a table alias, can also be a list of columns. +4644 quoted: whether or not to quote the alias +4645 dialect: the dialect used to parse the input expression. +4646 **opts: other options to use to parse the input expressions. +4647 +4648 Returns: +4649 Alias: the aliased expression +4650 """ +4651 exp = maybe_parse(expression, dialect=dialect, **opts) +4652 alias = to_identifier(alias, quoted=quoted) +4653 +4654 if table: +4655 table_alias = TableAlias(this=alias) +4656 exp.set("alias", table_alias) +4657 +4658 if not isinstance(table, bool): +4659 for column in table: +4660 table_alias.append("columns", to_identifier(column, quoted=quoted)) 4661 -4662def subquery(expression, alias=None, dialect=None, **opts): -4663 """ -4664 Build a subquery expression. -4665 -4666 Example: -4667 >>> subquery('select x from tbl', 'bar').select('x').sql() -4668 'SELECT x FROM (SELECT x FROM tbl) AS bar' +4662 return exp +4663 +4664 # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in +4665 # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node +4666 # for the complete Window expression. +4667 # +4668 # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls 4669 -4670 Args: -4671 expression (str | Expression): the SQL code strings to parse. -4672 If an Expression instance is passed, this is used as-is. -4673 alias (str | Expression): the alias name to use. -4674 dialect (str): the dialect used to parse the input expression. -4675 **opts: other options to use to parse the input expressions. +4670 if "alias" in exp.arg_types and not isinstance(exp, Window): +4671 exp = exp.copy() +4672 exp.set("alias", alias) +4673 return exp +4674 return Alias(this=exp, alias=alias) +4675 4676 -4677 Returns: -4678 Select: a new select with the subquery expression included -4679 """ +4677def subquery(expression, alias=None, dialect=None, **opts): +4678 """ +4679 Build a subquery expression. 4680 -4681 expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias) -4682 return Select().from_(expression, dialect=dialect, **opts) -4683 +4681 Example: +4682 >>> subquery('select x from tbl', 'bar').select('x').sql() +4683 'SELECT x FROM (SELECT x FROM tbl) AS bar' 4684 -4685def column( -4686 col: str | Identifier, -4687 table: t.Optional[str | Identifier] = None, -4688 db: t.Optional[str | Identifier] = None, -4689 catalog: t.Optional[str | Identifier] = None, -4690 quoted: t.Optional[bool] = None, -4691) -> Column: -4692 """ -4693 Build a Column. -4694 -4695 Args: -4696 col: column name -4697 table: table name -4698 db: db name -4699 catalog: catalog name -4700 quoted: whether or not to force quote each part -4701 Returns: -4702 Column: column instance -4703 """ -4704 return Column( -4705 this=to_identifier(col, quoted=quoted), -4706 table=to_identifier(table, quoted=quoted), -4707 db=to_identifier(db, quoted=quoted), -4708 catalog=to_identifier(catalog, quoted=quoted), -4709 ) -4710 -4711 -4712def cast(expression: ExpOrStr, to: str | DataType | DataType.Type, **opts) -> Cast: -4713 """Cast an expression to a data type. -4714 -4715 Example: -4716 >>> cast('x + 1', 'int').sql() -4717 'CAST(x + 1 AS INT)' -4718 -4719 Args: -4720 expression: The expression to cast. -4721 to: The datatype to cast to. -4722 -4723 Returns: -4724 A cast node. -4725 """ -4726 expression = maybe_parse(expression, **opts) -4727 return Cast(this=expression, to=DataType.build(to, **opts)) -4728 +4685 Args: +4686 expression (str | Expression): the SQL code strings to parse. +4687 If an Expression instance is passed, this is used as-is. +4688 alias (str | Expression): the alias name to use. +4689 dialect (str): the dialect used to parse the input expression. +4690 **opts: other options to use to parse the input expressions. +4691 +4692 Returns: +4693 Select: a new select with the subquery expression included +4694 """ +4695 +4696 expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias) +4697 return Select().from_(expression, dialect=dialect, **opts) +4698 +4699 +4700def column( +4701 col: str | Identifier, +4702 table: t.Optional[str | Identifier] = None, +4703 db: t.Optional[str | Identifier] = None, +4704 catalog: t.Optional[str | Identifier] = None, +4705 quoted: t.Optional[bool] = None, +4706) -> Column: +4707 """ +4708 Build a Column. +4709 +4710 Args: +4711 col: column name +4712 table: table name +4713 db: db name +4714 catalog: catalog name +4715 quoted: whether or not to force quote each part +4716 Returns: +4717 Column: column instance +4718 """ +4719 return Column( +4720 this=to_identifier(col, quoted=quoted), +4721 table=to_identifier(table, quoted=quoted), +4722 db=to_identifier(db, quoted=quoted), +4723 catalog=to_identifier(catalog, quoted=quoted), +4724 ) +4725 +4726 +4727def cast(expression: ExpOrStr, to: str | DataType | DataType.Type, **opts) -> Cast: +4728 """Cast an expression to a data type. 4729 -4730def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table: -4731 """Build a Table. -4732 -4733 Args: -4734 table (str | Expression): column name -4735 db (str | Expression): db name -4736 catalog (str | Expression): catalog name +4730 Example: +4731 >>> cast('x + 1', 'int').sql() +4732 'CAST(x + 1 AS INT)' +4733 +4734 Args: +4735 expression: The expression to cast. +4736 to: The datatype to cast to. 4737 4738 Returns: -4739 Table: table instance +4739 A cast node. 4740 """ -4741 return Table( -4742 this=to_identifier(table, quoted=quoted), -4743 db=to_identifier(db, quoted=quoted), -4744 catalog=to_identifier(catalog, quoted=quoted), -4745 alias=TableAlias(this=to_identifier(alias)) if alias else None, -4746 ) +4741 expression = maybe_parse(expression, **opts) +4742 return Cast(this=expression, to=DataType.build(to, **opts)) +4743 +4744 +4745def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table: +4746 """Build a Table. 4747 -4748 -4749def values( -4750 values: t.Iterable[t.Tuple[t.Any, ...]], -4751 alias: t.Optional[str] = None, -4752 columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None, -4753) -> Values: -4754 """Build VALUES statement. -4755 -4756 Example: -4757 >>> values([(1, '2')]).sql() -4758 "VALUES (1, '2')" -4759 -4760 Args: -4761 values: values statements that will be converted to SQL -4762 alias: optional alias -4763 columns: Optional list of ordered column names or ordered dictionary of column names to types. -4764 If either are provided then an alias is also required. -4765 If a dictionary is provided then the first column of the values will be casted to the expected type -4766 in order to help with type inference. -4767 -4768 Returns: -4769 Values: the Values expression object -4770 """ -4771 if columns and not alias: -4772 raise ValueError("Alias is required when providing columns") -4773 table_alias = ( -4774 TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns]) -4775 if columns -4776 else TableAlias(this=to_identifier(alias) if alias else None) -4777 ) -4778 expressions = [convert(tup) for tup in values] -4779 if columns and isinstance(columns, dict): -4780 types = list(columns.values()) -4781 expressions[0].set( -4782 "expressions", -4783 [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)], -4784 ) -4785 return Values( -4786 expressions=expressions, -4787 alias=table_alias, -4788 ) -4789 -4790 -4791def var(name: t.Optional[ExpOrStr]) -> Var: -4792 """Build a SQL variable. -4793 -4794 Example: -4795 >>> repr(var('x')) -4796 '(VAR this: x)' -4797 -4798 >>> repr(var(column('x', table='y'))) -4799 '(VAR this: x)' -4800 -4801 Args: -4802 name: The name of the var or an expression who's name will become the var. -4803 -4804 Returns: -4805 The new variable node. -4806 """ -4807 if not name: -4808 raise ValueError("Cannot convert empty name into var.") -4809 -4810 if isinstance(name, Expression): -4811 name = name.name -4812 return Var(this=name) -4813 -4814 -4815def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable: -4816 """Build ALTER TABLE... RENAME... expression -4817 -4818 Args: -4819 old_name: The old name of the table -4820 new_name: The new name of the table -4821 -4822 Returns: -4823 Alter table expression -4824 """ -4825 old_table = to_table(old_name) -4826 new_table = to_table(new_name) -4827 return AlterTable( -4828 this=old_table, -4829 actions=[ -4830 RenameTable(this=new_table), -4831 ], -4832 ) -4833 -4834 -4835def convert(value) -> Expression: -4836 """Convert a python value into an expression object. -4837 -4838 Raises an error if a conversion is not possible. -4839 -4840 Args: -4841 value (Any): a python object -4842 -4843 Returns: -4844 Expression: the equivalent expression object -4845 """ -4846 if isinstance(value, Expression): -4847 return value -4848 if value is None: -4849 return NULL -4850 if isinstance(value, bool): -4851 return Boolean(this=value) -4852 if isinstance(value, str): -4853 return Literal.string(value) -4854 if isinstance(value, float) and math.isnan(value): -4855 return NULL -4856 if isinstance(value, numbers.Number): -4857 return Literal.number(value) -4858 if isinstance(value, tuple): -4859 return Tuple(expressions=[convert(v) for v in value]) -4860 if isinstance(value, list): -4861 return Array(expressions=[convert(v) for v in value]) -4862 if isinstance(value, dict): -4863 return Map( -4864 keys=[convert(k) for k in value], -4865 values=[convert(v) for v in value.values()], -4866 ) -4867 if isinstance(value, datetime.datetime): -4868 datetime_literal = Literal.string( -4869 (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat() -4870 ) -4871 return TimeStrToTime(this=datetime_literal) -4872 if isinstance(value, datetime.date): -4873 date_literal = Literal.string(value.strftime("%Y-%m-%d")) -4874 return DateStrToDate(this=date_literal) -4875 raise ValueError(f"Cannot convert {value}") -4876 -4877 -4878def replace_children(expression, fun, *args, **kwargs): -4879 """ -4880 Replace children of an expression with the result of a lambda fun(child) -> exp. -4881 """ -4882 for k, v in expression.args.items(): -4883 is_list_arg = type(v) is list -4884 -4885 child_nodes = v if is_list_arg else [v] -4886 new_child_nodes = [] -4887 -4888 for cn in child_nodes: -4889 if isinstance(cn, Expression): -4890 for child_node in ensure_collection(fun(cn, *args, **kwargs)): -4891 new_child_nodes.append(child_node) -4892 child_node.parent = expression -4893 child_node.arg_key = k -4894 else: -4895 new_child_nodes.append(cn) -4896 -4897 expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0) -4898 +4748 Args: +4749 table (str | Expression): column name +4750 db (str | Expression): db name +4751 catalog (str | Expression): catalog name +4752 +4753 Returns: +4754 Table: table instance +4755 """ +4756 return Table( +4757 this=to_identifier(table, quoted=quoted), +4758 db=to_identifier(db, quoted=quoted), +4759 catalog=to_identifier(catalog, quoted=quoted), +4760 alias=TableAlias(this=to_identifier(alias)) if alias else None, +4761 ) +4762 +4763 +4764def values( +4765 values: t.Iterable[t.Tuple[t.Any, ...]], +4766 alias: t.Optional[str] = None, +4767 columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None, +4768) -> Values: +4769 """Build VALUES statement. +4770 +4771 Example: +4772 >>> values([(1, '2')]).sql() +4773 "VALUES (1, '2')" +4774 +4775 Args: +4776 values: values statements that will be converted to SQL +4777 alias: optional alias +4778 columns: Optional list of ordered column names or ordered dictionary of column names to types. +4779 If either are provided then an alias is also required. +4780 If a dictionary is provided then the first column of the values will be casted to the expected type +4781 in order to help with type inference. +4782 +4783 Returns: +4784 Values: the Values expression object +4785 """ +4786 if columns and not alias: +4787 raise ValueError("Alias is required when providing columns") +4788 table_alias = ( +4789 TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns]) +4790 if columns +4791 else TableAlias(this=to_identifier(alias) if alias else None) +4792 ) +4793 expressions = [convert(tup) for tup in values] +4794 if columns and isinstance(columns, dict): +4795 types = list(columns.values()) +4796 expressions[0].set( +4797 "expressions", +4798 [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)], +4799 ) +4800 return Values( +4801 expressions=expressions, +4802 alias=table_alias, +4803 ) +4804 +4805 +4806def var(name: t.Optional[ExpOrStr]) -> Var: +4807 """Build a SQL variable. +4808 +4809 Example: +4810 >>> repr(var('x')) +4811 '(VAR this: x)' +4812 +4813 >>> repr(var(column('x', table='y'))) +4814 '(VAR this: x)' +4815 +4816 Args: +4817 name: The name of the var or an expression who's name will become the var. +4818 +4819 Returns: +4820 The new variable node. +4821 """ +4822 if not name: +4823 raise ValueError("Cannot convert empty name into var.") +4824 +4825 if isinstance(name, Expression): +4826 name = name.name +4827 return Var(this=name) +4828 +4829 +4830def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable: +4831 """Build ALTER TABLE... RENAME... expression +4832 +4833 Args: +4834 old_name: The old name of the table +4835 new_name: The new name of the table +4836 +4837 Returns: +4838 Alter table expression +4839 """ +4840 old_table = to_table(old_name) +4841 new_table = to_table(new_name) +4842 return AlterTable( +4843 this=old_table, +4844 actions=[ +4845 RenameTable(this=new_table), +4846 ], +4847 ) +4848 +4849 +4850def convert(value) -> Expression: +4851 """Convert a python value into an expression object. +4852 +4853 Raises an error if a conversion is not possible. +4854 +4855 Args: +4856 value (Any): a python object +4857 +4858 Returns: +4859 Expression: the equivalent expression object +4860 """ +4861 if isinstance(value, Expression): +4862 return value +4863 if value is None: +4864 return NULL +4865 if isinstance(value, bool): +4866 return Boolean(this=value) +4867 if isinstance(value, str): +4868 return Literal.string(value) +4869 if isinstance(value, float) and math.isnan(value): +4870 return NULL +4871 if isinstance(value, numbers.Number): +4872 return Literal.number(value) +4873 if isinstance(value, tuple): +4874 return Tuple(expressions=[convert(v) for v in value]) +4875 if isinstance(value, list): +4876 return Array(expressions=[convert(v) for v in value]) +4877 if isinstance(value, dict): +4878 return Map( +4879 keys=[convert(k) for k in value], +4880 values=[convert(v) for v in value.values()], +4881 ) +4882 if isinstance(value, datetime.datetime): +4883 datetime_literal = Literal.string( +4884 (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat() +4885 ) +4886 return TimeStrToTime(this=datetime_literal) +4887 if isinstance(value, datetime.date): +4888 date_literal = Literal.string(value.strftime("%Y-%m-%d")) +4889 return DateStrToDate(this=date_literal) +4890 raise ValueError(f"Cannot convert {value}") +4891 +4892 +4893def replace_children(expression, fun, *args, **kwargs): +4894 """ +4895 Replace children of an expression with the result of a lambda fun(child) -> exp. +4896 """ +4897 for k, v in expression.args.items(): +4898 is_list_arg = type(v) is list 4899 -4900def column_table_names(expression): -4901 """ -4902 Return all table names referenced through columns in an expression. -4903 -4904 Example: -4905 >>> import sqlglot -4906 >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e")) -4907 ['c', 'a'] -4908 -4909 Args: -4910 expression (sqlglot.Expression): expression to find table names +4900 child_nodes = v if is_list_arg else [v] +4901 new_child_nodes = [] +4902 +4903 for cn in child_nodes: +4904 if isinstance(cn, Expression): +4905 for child_node in ensure_collection(fun(cn, *args, **kwargs)): +4906 new_child_nodes.append(child_node) +4907 child_node.parent = expression +4908 child_node.arg_key = k +4909 else: +4910 new_child_nodes.append(cn) 4911 -4912 Returns: -4913 list: A list of unique names -4914 """ -4915 return list(dict.fromkeys(column.table for column in expression.find_all(Column))) -4916 -4917 -4918def table_name(table) -> str: -4919 """Get the full name of a table as a string. -4920 -4921 Args: -4922 table (exp.Table | str): table expression node or string. +4912 expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0) +4913 +4914 +4915def column_table_names(expression): +4916 """ +4917 Return all table names referenced through columns in an expression. +4918 +4919 Example: +4920 >>> import sqlglot +4921 >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e")) +4922 ['c', 'a'] 4923 -4924 Examples: -4925 >>> from sqlglot import exp, parse_one -4926 >>> table_name(parse_one("select * from a.b.c").find(exp.Table)) -4927 'a.b.c' -4928 -4929 Returns: -4930 The table name. -4931 """ +4924 Args: +4925 expression (sqlglot.Expression): expression to find table names +4926 +4927 Returns: +4928 list: A list of unique names +4929 """ +4930 return list(dict.fromkeys(column.table for column in expression.find_all(Column))) +4931 4932 -4933 table = maybe_parse(table, into=Table) -4934 -4935 if not table: -4936 raise ValueError(f"Cannot parse {table}") -4937 -4938 return ".".join( -4939 part -4940 for part in ( -4941 table.text("catalog"), -4942 table.text("db"), -4943 table.name, -4944 ) -4945 if part -4946 ) +4933def table_name(table) -> str: +4934 """Get the full name of a table as a string. +4935 +4936 Args: +4937 table (exp.Table | str): table expression node or string. +4938 +4939 Examples: +4940 >>> from sqlglot import exp, parse_one +4941 >>> table_name(parse_one("select * from a.b.c").find(exp.Table)) +4942 'a.b.c' +4943 +4944 Returns: +4945 The table name. +4946 """ 4947 -4948 -4949def replace_tables(expression, mapping): -4950 """Replace all tables in expression according to the mapping. -4951 -4952 Args: -4953 expression (sqlglot.Expression): expression node to be transformed and replaced. -4954 mapping (Dict[str, str]): mapping of table names. -4955 -4956 Examples: -4957 >>> from sqlglot import exp, parse_one -4958 >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql() -4959 'SELECT * FROM c' -4960 -4961 Returns: -4962 The mapped expression. -4963 """ -4964 -4965 def _replace_tables(node): -4966 if isinstance(node, Table): -4967 new_name = mapping.get(table_name(node)) -4968 if new_name: -4969 return to_table( -4970 new_name, -4971 **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")}, -4972 ) -4973 return node -4974 -4975 return expression.transform(_replace_tables) -4976 -4977 -4978def replace_placeholders(expression, *args, **kwargs): -4979 """Replace placeholders in an expression. -4980 -4981 Args: -4982 expression (sqlglot.Expression): expression node to be transformed and replaced. -4983 args: positional names that will substitute unnamed placeholders in the given order. -4984 kwargs: keyword arguments that will substitute named placeholders. -4985 -4986 Examples: -4987 >>> from sqlglot import exp, parse_one -4988 >>> replace_placeholders( -4989 ... parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo" -4990 ... ).sql() -4991 'SELECT * FROM foo WHERE a = b' +4948 table = maybe_parse(table, into=Table) +4949 +4950 if not table: +4951 raise ValueError(f"Cannot parse {table}") +4952 +4953 return ".".join( +4954 part +4955 for part in ( +4956 table.text("catalog"), +4957 table.text("db"), +4958 table.name, +4959 ) +4960 if part +4961 ) +4962 +4963 +4964def replace_tables(expression, mapping): +4965 """Replace all tables in expression according to the mapping. +4966 +4967 Args: +4968 expression (sqlglot.Expression): expression node to be transformed and replaced. +4969 mapping (Dict[str, str]): mapping of table names. +4970 +4971 Examples: +4972 >>> from sqlglot import exp, parse_one +4973 >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql() +4974 'SELECT * FROM c' +4975 +4976 Returns: +4977 The mapped expression. +4978 """ +4979 +4980 def _replace_tables(node): +4981 if isinstance(node, Table): +4982 new_name = mapping.get(table_name(node)) +4983 if new_name: +4984 return to_table( +4985 new_name, +4986 **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")}, +4987 ) +4988 return node +4989 +4990 return expression.transform(_replace_tables) +4991 4992 -4993 Returns: -4994 The mapped expression. -4995 """ -4996 -4997 def _replace_placeholders(node, args, **kwargs): -4998 if isinstance(node, Placeholder): -4999 if node.name: -5000 new_name = kwargs.get(node.name) -5001 if new_name: -5002 return to_identifier(new_name) -5003 else: -5004 try: -5005 return to_identifier(next(args)) -5006 except StopIteration: -5007 pass -5008 return node -5009 -5010 return expression.transform(_replace_placeholders, iter(args), **kwargs) -5011 +4993def replace_placeholders(expression, *args, **kwargs): +4994 """Replace placeholders in an expression. +4995 +4996 Args: +4997 expression (sqlglot.Expression): expression node to be transformed and replaced. +4998 args: positional names that will substitute unnamed placeholders in the given order. +4999 kwargs: keyword arguments that will substitute named placeholders. +5000 +5001 Examples: +5002 >>> from sqlglot import exp, parse_one +5003 >>> replace_placeholders( +5004 ... parse_one("select * from :tbl where ? = ?"), +5005 ... exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo") +5006 ... ).sql() +5007 "SELECT * FROM foo WHERE str_col = 'b'" +5008 +5009 Returns: +5010 The mapped expression. +5011 """ 5012 -5013def expand(expression: Expression, sources: t.Dict[str, Subqueryable], copy=True) -> Expression: -5014 """Transforms an expression by expanding all referenced sources into subqueries. -5015 -5016 Examples: -5017 >>> from sqlglot import parse_one -5018 >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql() -5019 'SELECT * FROM (SELECT * FROM y) AS z /* source: x */' -5020 -5021 Args: -5022 expression: The expression to expand. -5023 sources: A dictionary of name to Subqueryables. -5024 copy: Whether or not to copy the expression during transformation. Defaults to True. +5013 def _replace_placeholders(node, args, **kwargs): +5014 if isinstance(node, Placeholder): +5015 if node.name: +5016 new_name = kwargs.get(node.name) +5017 if new_name: +5018 return convert(new_name) +5019 else: +5020 try: +5021 return convert(next(args)) +5022 except StopIteration: +5023 pass +5024 return node 5025 -5026 Returns: -5027 The transformed expression. -5028 """ -5029 -5030 def _expand(node: Expression): -5031 if isinstance(node, Table): -5032 name = table_name(node) -5033 source = sources.get(name) -5034 if source: -5035 subquery = source.subquery(node.alias or name) -5036 subquery.comments = [f"source: {name}"] -5037 return subquery -5038 return node -5039 -5040 return expression.transform(_expand, copy=copy) +5026 return expression.transform(_replace_placeholders, iter(args), **kwargs) +5027 +5028 +5029def expand(expression: Expression, sources: t.Dict[str, Subqueryable], copy=True) -> Expression: +5030 """Transforms an expression by expanding all referenced sources into subqueries. +5031 +5032 Examples: +5033 >>> from sqlglot import parse_one +5034 >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql() +5035 'SELECT * FROM (SELECT * FROM y) AS z /* source: x */' +5036 +5037 Args: +5038 expression: The expression to expand. +5039 sources: A dictionary of name to Subqueryables. +5040 copy: Whether or not to copy the expression during transformation. Defaults to True. 5041 -5042 -5043def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func: -5044 """ -5045 Returns a Func expression. -5046 -5047 Examples: -5048 >>> func("abs", 5).sql() -5049 'ABS(5)' -5050 -5051 >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql() -5052 'CAST(5 AS DOUBLE)' -5053 -5054 Args: -5055 name: the name of the function to build. -5056 args: the args used to instantiate the function of interest. -5057 dialect: the source dialect. -5058 kwargs: the kwargs used to instantiate the function of interest. -5059 -5060 Note: -5061 The arguments `args` and `kwargs` are mutually exclusive. +5042 Returns: +5043 The transformed expression. +5044 """ +5045 +5046 def _expand(node: Expression): +5047 if isinstance(node, Table): +5048 name = table_name(node) +5049 source = sources.get(name) +5050 if source: +5051 subquery = source.subquery(node.alias or name) +5052 subquery.comments = [f"source: {name}"] +5053 return subquery +5054 return node +5055 +5056 return expression.transform(_expand, copy=copy) +5057 +5058 +5059def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func: +5060 """ +5061 Returns a Func expression. 5062 -5063 Returns: -5064 An instance of the function of interest, or an anonymous function, if `name` doesn't -5065 correspond to an existing `sqlglot.expressions.Func` class. -5066 """ -5067 if args and kwargs: -5068 raise ValueError("Can't use both args and kwargs to instantiate a function.") +5063 Examples: +5064 >>> func("abs", 5).sql() +5065 'ABS(5)' +5066 +5067 >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql() +5068 'CAST(5 AS DOUBLE)' 5069 -5070 from sqlglot.dialects.dialect import Dialect -5071 -5072 converted = [convert(arg) for arg in args] -5073 kwargs = {key: convert(value) for key, value in kwargs.items()} -5074 -5075 parser = Dialect.get_or_raise(dialect)().parser() -5076 from_args_list = parser.FUNCTIONS.get(name.upper()) -5077 -5078 if from_args_list: -5079 function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs) # type: ignore -5080 else: -5081 kwargs = kwargs or {"expressions": converted} -5082 function = Anonymous(this=name, **kwargs) -5083 -5084 for error_message in function.error_messages(converted): -5085 raise ValueError(error_message) -5086 -5087 return function -5088 -5089 -5090def true(): -5091 """ -5092 Returns a true Boolean expression. -5093 """ -5094 return Boolean(this=True) -5095 -5096 -5097def false(): -5098 """ -5099 Returns a false Boolean expression. -5100 """ -5101 return Boolean(this=False) +5070 Args: +5071 name: the name of the function to build. +5072 args: the args used to instantiate the function of interest. +5073 dialect: the source dialect. +5074 kwargs: the kwargs used to instantiate the function of interest. +5075 +5076 Note: +5077 The arguments `args` and `kwargs` are mutually exclusive. +5078 +5079 Returns: +5080 An instance of the function of interest, or an anonymous function, if `name` doesn't +5081 correspond to an existing `sqlglot.expressions.Func` class. +5082 """ +5083 if args and kwargs: +5084 raise ValueError("Can't use both args and kwargs to instantiate a function.") +5085 +5086 from sqlglot.dialects.dialect import Dialect +5087 +5088 converted = [convert(arg) for arg in args] +5089 kwargs = {key: convert(value) for key, value in kwargs.items()} +5090 +5091 parser = Dialect.get_or_raise(dialect)().parser() +5092 from_args_list = parser.FUNCTIONS.get(name.upper()) +5093 +5094 if from_args_list: +5095 function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs) # type: ignore +5096 else: +5097 kwargs = kwargs or {"expressions": converted} +5098 function = Anonymous(this=name, **kwargs) +5099 +5100 for error_message in function.error_messages(converted): +5101 raise ValueError(error_message) 5102 -5103 -5104def null(): -5105 """ -5106 Returns a Null expression. -5107 """ -5108 return Null() -5109 -5110 -5111# TODO: deprecate this -5112TRUE = Boolean(this=True) -5113FALSE = Boolean(this=False) -5114NULL = Null() +5103 return function +5104 +5105 +5106def true(): +5107 """ +5108 Returns a true Boolean expression. +5109 """ +5110 return Boolean(this=True) +5111 +5112 +5113def false(): +5114 """ +5115 Returns a false Boolean expression. +5116 """ +5117 return Boolean(this=False) +5118 +5119 +5120def null(): +5121 """ +5122 Returns a Null expression. +5123 """ +5124 return Null() +5125 +5126 +5127# TODO: deprecate this +5128TRUE = Boolean(this=True) +5129FALSE = Boolean(this=False) +5130NULL = Null()
  • @@ -12063,6 +12097,70 @@ If an Expression instance is passed, it w
    or_
    not_
    + + + + +
    + +
    + + class + ColumnPosition(Expression): + + + +
    + +
    952class ColumnPosition(Expression):
    +953    arg_types = {"this": False, "position": True}
    +
    + + + + + @@ -12078,13 +12176,14 @@ If an Expression instance is passed, it w -
    952class ColumnDef(Expression):
    -953    arg_types = {
    -954        "this": True,
    -955        "kind": False,
    -956        "constraints": False,
    -957        "exists": False,
    -958    }
    +            
    956class ColumnDef(Expression):
    +957    arg_types = {
    +958        "this": True,
    +959        "kind": False,
    +960        "constraints": False,
    +961        "exists": False,
    +962        "position": False,
    +963    }
     
    @@ -12147,15 +12246,15 @@ If an Expression instance is passed, it w
    -
    961class AlterColumn(Expression):
    -962    arg_types = {
    -963        "this": True,
    -964        "dtype": False,
    -965        "collate": False,
    -966        "using": False,
    -967        "default": False,
    -968        "drop": False,
    -969    }
    +            
    966class AlterColumn(Expression):
    +967    arg_types = {
    +968        "this": True,
    +969        "dtype": False,
    +970        "collate": False,
    +971        "using": False,
    +972        "default": False,
    +973        "drop": False,
    +974    }
     
    @@ -12218,8 +12317,8 @@ If an Expression instance is passed, it w
    -
    972class RenameTable(Expression):
    -973    pass
    +            
    977class RenameTable(Expression):
    +978    pass
     
    @@ -12282,8 +12381,8 @@ If an Expression instance is passed, it w
    -
    976class SetTag(Expression):
    -977    arg_types = {"expressions": True, "unset": False}
    +            
    981class SetTag(Expression):
    +982    arg_types = {"expressions": True, "unset": False}
     
    @@ -12346,8 +12445,8 @@ If an Expression instance is passed, it w
    -
    980class Comment(Expression):
    -981    arg_types = {"this": True, "kind": True, "expression": True, "exists": False}
    +            
    985class Comment(Expression):
    +986    arg_types = {"this": True, "kind": True, "expression": True, "exists": False}
     
    @@ -12410,8 +12509,8 @@ If an Expression instance is passed, it w
    -
    984class ColumnConstraint(Expression):
    -985    arg_types = {"this": False, "kind": True}
    +            
    989class ColumnConstraint(Expression):
    +990    arg_types = {"this": False, "kind": True}
     
    @@ -12474,8 +12573,8 @@ If an Expression instance is passed, it w
    -
    988class ColumnConstraintKind(Expression):
    -989    pass
    +            
    993class ColumnConstraintKind(Expression):
    +994    pass
     
    @@ -12538,8 +12637,8 @@ If an Expression instance is passed, it w
    -
    992class AutoIncrementColumnConstraint(ColumnConstraintKind):
    -993    pass
    +            
    997class AutoIncrementColumnConstraint(ColumnConstraintKind):
    +998    pass
     
    @@ -12602,8 +12701,8 @@ If an Expression instance is passed, it w
    -
    996class CaseSpecificColumnConstraint(ColumnConstraintKind):
    -997    arg_types = {"not_": True}
    +            
    1001class CaseSpecificColumnConstraint(ColumnConstraintKind):
    +1002    arg_types = {"not_": True}
     
    @@ -12666,8 +12765,8 @@ If an Expression instance is passed, it w
    -
    1000class CharacterSetColumnConstraint(ColumnConstraintKind):
    -1001    arg_types = {"this": True}
    +            
    1005class CharacterSetColumnConstraint(ColumnConstraintKind):
    +1006    arg_types = {"this": True}
     
    @@ -12730,8 +12829,8 @@ If an Expression instance is passed, it w
    -
    1004class CheckColumnConstraint(ColumnConstraintKind):
    -1005    pass
    +            
    1009class CheckColumnConstraint(ColumnConstraintKind):
    +1010    pass
     
    @@ -12794,8 +12893,8 @@ If an Expression instance is passed, it w
    -
    1008class CollateColumnConstraint(ColumnConstraintKind):
    -1009    pass
    +            
    1013class CollateColumnConstraint(ColumnConstraintKind):
    +1014    pass
     
    @@ -12858,8 +12957,8 @@ If an Expression instance is passed, it w
    -
    1012class CommentColumnConstraint(ColumnConstraintKind):
    -1013    pass
    +            
    1017class CommentColumnConstraint(ColumnConstraintKind):
    +1018    pass
     
    @@ -12922,8 +13021,8 @@ If an Expression instance is passed, it w
    -
    1016class CompressColumnConstraint(ColumnConstraintKind):
    -1017    pass
    +            
    1021class CompressColumnConstraint(ColumnConstraintKind):
    +1022    pass
     
    @@ -12986,8 +13085,8 @@ If an Expression instance is passed, it w
    -
    1020class DateFormatColumnConstraint(ColumnConstraintKind):
    -1021    arg_types = {"this": True}
    +            
    1025class DateFormatColumnConstraint(ColumnConstraintKind):
    +1026    arg_types = {"this": True}
     
    @@ -13050,8 +13149,8 @@ If an Expression instance is passed, it w
    -
    1024class DefaultColumnConstraint(ColumnConstraintKind):
    -1025    pass
    +            
    1029class DefaultColumnConstraint(ColumnConstraintKind):
    +1030    pass
     
    @@ -13114,8 +13213,8 @@ If an Expression instance is passed, it w
    -
    1028class EncodeColumnConstraint(ColumnConstraintKind):
    -1029    pass
    +            
    1033class EncodeColumnConstraint(ColumnConstraintKind):
    +1034    pass
     
    @@ -13178,16 +13277,16 @@ If an Expression instance is passed, it w
    -
    1032class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind):
    -1033    # this: True -> ALWAYS, this: False -> BY DEFAULT
    -1034    arg_types = {
    -1035        "this": False,
    -1036        "start": False,
    -1037        "increment": False,
    -1038        "minvalue": False,
    -1039        "maxvalue": False,
    -1040        "cycle": False,
    -1041    }
    +            
    1037class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind):
    +1038    # this: True -> ALWAYS, this: False -> BY DEFAULT
    +1039    arg_types = {
    +1040        "this": False,
    +1041        "start": False,
    +1042        "increment": False,
    +1043        "minvalue": False,
    +1044        "maxvalue": False,
    +1045        "cycle": False,
    +1046    }
     
    @@ -13250,8 +13349,8 @@ If an Expression instance is passed, it w
    -
    1044class InlineLengthColumnConstraint(ColumnConstraintKind):
    -1045    pass
    +            
    1049class InlineLengthColumnConstraint(ColumnConstraintKind):
    +1050    pass
     
    @@ -13314,8 +13413,8 @@ If an Expression instance is passed, it w
    -
    1048class NotNullColumnConstraint(ColumnConstraintKind):
    -1049    arg_types = {"allow_null": False}
    +            
    1053class NotNullColumnConstraint(ColumnConstraintKind):
    +1054    arg_types = {"allow_null": False}
     
    @@ -13378,8 +13477,8 @@ If an Expression instance is passed, it w
    -
    1052class PrimaryKeyColumnConstraint(ColumnConstraintKind):
    -1053    arg_types = {"desc": False}
    +            
    1057class PrimaryKeyColumnConstraint(ColumnConstraintKind):
    +1058    arg_types = {"desc": False}
     
    @@ -13442,8 +13541,8 @@ If an Expression instance is passed, it w
    -
    1056class TitleColumnConstraint(ColumnConstraintKind):
    -1057    pass
    +            
    1061class TitleColumnConstraint(ColumnConstraintKind):
    +1062    pass
     
    @@ -13506,8 +13605,8 @@ If an Expression instance is passed, it w
    -
    1060class UniqueColumnConstraint(ColumnConstraintKind):
    -1061    arg_types: t.Dict[str, t.Any] = {}
    +            
    1065class UniqueColumnConstraint(ColumnConstraintKind):
    +1066    arg_types: t.Dict[str, t.Any] = {}
     
    @@ -13570,8 +13669,8 @@ If an Expression instance is passed, it w
    -
    1064class UppercaseColumnConstraint(ColumnConstraintKind):
    -1065    arg_types: t.Dict[str, t.Any] = {}
    +            
    1069class UppercaseColumnConstraint(ColumnConstraintKind):
    +1070    arg_types: t.Dict[str, t.Any] = {}
     
    @@ -13634,8 +13733,8 @@ If an Expression instance is passed, it w
    -
    1068class PathColumnConstraint(ColumnConstraintKind):
    -1069    pass
    +            
    1073class PathColumnConstraint(ColumnConstraintKind):
    +1074    pass
     
    @@ -13698,8 +13797,8 @@ If an Expression instance is passed, it w
    -
    1072class Constraint(Expression):
    -1073    arg_types = {"this": True, "expressions": True}
    +            
    1077class Constraint(Expression):
    +1078    arg_types = {"this": True, "expressions": True}
     
    @@ -13762,115 +13861,115 @@ If an Expression instance is passed, it w
    -
    1076class Delete(Expression):
    -1077    arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False}
    -1078
    -1079    def delete(
    -1080        self,
    -1081        table: ExpOrStr,
    -1082        dialect: DialectType = None,
    -1083        copy: bool = True,
    -1084        **opts,
    -1085    ) -> Delete:
    -1086        """
    -1087        Create a DELETE expression or replace the table on an existing DELETE expression.
    -1088
    -1089        Example:
    -1090            >>> delete("tbl").sql()
    -1091            'DELETE FROM tbl'
    -1092
    -1093        Args:
    -1094            table: the table from which to delete.
    -1095            dialect: the dialect used to parse the input expression.
    -1096            copy: if `False`, modify this expression instance in-place.
    -1097            opts: other options to use to parse the input expressions.
    -1098
    -1099        Returns:
    -1100            Delete: the modified expression.
    -1101        """
    -1102        return _apply_builder(
    -1103            expression=table,
    -1104            instance=self,
    -1105            arg="this",
    -1106            dialect=dialect,
    -1107            into=Table,
    -1108            copy=copy,
    -1109            **opts,
    -1110        )
    -1111
    -1112    def where(
    -1113        self,
    -1114        *expressions: ExpOrStr,
    -1115        append: bool = True,
    -1116        dialect: DialectType = None,
    -1117        copy: bool = True,
    -1118        **opts,
    -1119    ) -> Delete:
    -1120        """
    -1121        Append to or set the WHERE expressions.
    -1122
    -1123        Example:
    -1124            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    -1125            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    -1126
    -1127        Args:
    -1128            *expressions: the SQL code strings to parse.
    -1129                If an `Expression` instance is passed, it will be used as-is.
    -1130                Multiple expressions are combined with an AND operator.
    -1131            append: if `True`, AND the new expressions to any existing expression.
    -1132                Otherwise, this resets the expression.
    -1133            dialect: the dialect used to parse the input expressions.
    -1134            copy: if `False`, modify this expression instance in-place.
    -1135            opts: other options to use to parse the input expressions.
    -1136
    -1137        Returns:
    -1138            Delete: the modified expression.
    -1139        """
    -1140        return _apply_conjunction_builder(
    -1141            *expressions,
    -1142            instance=self,
    -1143            arg="where",
    -1144            append=append,
    -1145            into=Where,
    -1146            dialect=dialect,
    -1147            copy=copy,
    -1148            **opts,
    -1149        )
    -1150
    -1151    def returning(
    -1152        self,
    -1153        expression: ExpOrStr,
    -1154        dialect: DialectType = None,
    -1155        copy: bool = True,
    -1156        **opts,
    -1157    ) -> Delete:
    -1158        """
    -1159        Set the RETURNING expression. Not supported by all dialects.
    -1160
    -1161        Example:
    -1162            >>> delete("tbl").returning("*", dialect="postgres").sql()
    -1163            'DELETE FROM tbl RETURNING *'
    -1164
    -1165        Args:
    -1166            expression: the SQL code strings to parse.
    -1167                If an `Expression` instance is passed, it will be used as-is.
    -1168            dialect: the dialect used to parse the input expressions.
    -1169            copy: if `False`, modify this expression instance in-place.
    -1170            opts: other options to use to parse the input expressions.
    -1171
    -1172        Returns:
    -1173            Delete: the modified expression.
    -1174        """
    -1175        return _apply_builder(
    -1176            expression=expression,
    -1177            instance=self,
    -1178            arg="returning",
    -1179            prefix="RETURNING",
    -1180            dialect=dialect,
    -1181            copy=copy,
    -1182            into=Returning,
    -1183            **opts,
    -1184        )
    +            
    1081class Delete(Expression):
    +1082    arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False}
    +1083
    +1084    def delete(
    +1085        self,
    +1086        table: ExpOrStr,
    +1087        dialect: DialectType = None,
    +1088        copy: bool = True,
    +1089        **opts,
    +1090    ) -> Delete:
    +1091        """
    +1092        Create a DELETE expression or replace the table on an existing DELETE expression.
    +1093
    +1094        Example:
    +1095            >>> delete("tbl").sql()
    +1096            'DELETE FROM tbl'
    +1097
    +1098        Args:
    +1099            table: the table from which to delete.
    +1100            dialect: the dialect used to parse the input expression.
    +1101            copy: if `False`, modify this expression instance in-place.
    +1102            opts: other options to use to parse the input expressions.
    +1103
    +1104        Returns:
    +1105            Delete: the modified expression.
    +1106        """
    +1107        return _apply_builder(
    +1108            expression=table,
    +1109            instance=self,
    +1110            arg="this",
    +1111            dialect=dialect,
    +1112            into=Table,
    +1113            copy=copy,
    +1114            **opts,
    +1115        )
    +1116
    +1117    def where(
    +1118        self,
    +1119        *expressions: ExpOrStr,
    +1120        append: bool = True,
    +1121        dialect: DialectType = None,
    +1122        copy: bool = True,
    +1123        **opts,
    +1124    ) -> Delete:
    +1125        """
    +1126        Append to or set the WHERE expressions.
    +1127
    +1128        Example:
    +1129            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    +1130            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    +1131
    +1132        Args:
    +1133            *expressions: the SQL code strings to parse.
    +1134                If an `Expression` instance is passed, it will be used as-is.
    +1135                Multiple expressions are combined with an AND operator.
    +1136            append: if `True`, AND the new expressions to any existing expression.
    +1137                Otherwise, this resets the expression.
    +1138            dialect: the dialect used to parse the input expressions.
    +1139            copy: if `False`, modify this expression instance in-place.
    +1140            opts: other options to use to parse the input expressions.
    +1141
    +1142        Returns:
    +1143            Delete: the modified expression.
    +1144        """
    +1145        return _apply_conjunction_builder(
    +1146            *expressions,
    +1147            instance=self,
    +1148            arg="where",
    +1149            append=append,
    +1150            into=Where,
    +1151            dialect=dialect,
    +1152            copy=copy,
    +1153            **opts,
    +1154        )
    +1155
    +1156    def returning(
    +1157        self,
    +1158        expression: ExpOrStr,
    +1159        dialect: DialectType = None,
    +1160        copy: bool = True,
    +1161        **opts,
    +1162    ) -> Delete:
    +1163        """
    +1164        Set the RETURNING expression. Not supported by all dialects.
    +1165
    +1166        Example:
    +1167            >>> delete("tbl").returning("*", dialect="postgres").sql()
    +1168            'DELETE FROM tbl RETURNING *'
    +1169
    +1170        Args:
    +1171            expression: the SQL code strings to parse.
    +1172                If an `Expression` instance is passed, it will be used as-is.
    +1173            dialect: the dialect used to parse the input expressions.
    +1174            copy: if `False`, modify this expression instance in-place.
    +1175            opts: other options to use to parse the input expressions.
    +1176
    +1177        Returns:
    +1178            Delete: the modified expression.
    +1179        """
    +1180        return _apply_builder(
    +1181            expression=expression,
    +1182            instance=self,
    +1183            arg="returning",
    +1184            prefix="RETURNING",
    +1185            dialect=dialect,
    +1186            copy=copy,
    +1187            into=Returning,
    +1188            **opts,
    +1189        )
     
    @@ -13887,38 +13986,38 @@ If an Expression instance is passed, it w
    -
    1079    def delete(
    -1080        self,
    -1081        table: ExpOrStr,
    -1082        dialect: DialectType = None,
    -1083        copy: bool = True,
    -1084        **opts,
    -1085    ) -> Delete:
    -1086        """
    -1087        Create a DELETE expression or replace the table on an existing DELETE expression.
    -1088
    -1089        Example:
    -1090            >>> delete("tbl").sql()
    -1091            'DELETE FROM tbl'
    -1092
    -1093        Args:
    -1094            table: the table from which to delete.
    -1095            dialect: the dialect used to parse the input expression.
    -1096            copy: if `False`, modify this expression instance in-place.
    -1097            opts: other options to use to parse the input expressions.
    -1098
    -1099        Returns:
    -1100            Delete: the modified expression.
    -1101        """
    -1102        return _apply_builder(
    -1103            expression=table,
    -1104            instance=self,
    -1105            arg="this",
    -1106            dialect=dialect,
    -1107            into=Table,
    -1108            copy=copy,
    -1109            **opts,
    -1110        )
    +            
    1084    def delete(
    +1085        self,
    +1086        table: ExpOrStr,
    +1087        dialect: DialectType = None,
    +1088        copy: bool = True,
    +1089        **opts,
    +1090    ) -> Delete:
    +1091        """
    +1092        Create a DELETE expression or replace the table on an existing DELETE expression.
    +1093
    +1094        Example:
    +1095            >>> delete("tbl").sql()
    +1096            'DELETE FROM tbl'
    +1097
    +1098        Args:
    +1099            table: the table from which to delete.
    +1100            dialect: the dialect used to parse the input expression.
    +1101            copy: if `False`, modify this expression instance in-place.
    +1102            opts: other options to use to parse the input expressions.
    +1103
    +1104        Returns:
    +1105            Delete: the modified expression.
    +1106        """
    +1107        return _apply_builder(
    +1108            expression=table,
    +1109            instance=self,
    +1110            arg="this",
    +1111            dialect=dialect,
    +1112            into=Table,
    +1113            copy=copy,
    +1114            **opts,
    +1115        )
     
    @@ -13963,44 +14062,44 @@ If an Expression instance is passed, it w
    -
    1112    def where(
    -1113        self,
    -1114        *expressions: ExpOrStr,
    -1115        append: bool = True,
    -1116        dialect: DialectType = None,
    -1117        copy: bool = True,
    -1118        **opts,
    -1119    ) -> Delete:
    -1120        """
    -1121        Append to or set the WHERE expressions.
    -1122
    -1123        Example:
    -1124            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    -1125            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    -1126
    -1127        Args:
    -1128            *expressions: the SQL code strings to parse.
    -1129                If an `Expression` instance is passed, it will be used as-is.
    -1130                Multiple expressions are combined with an AND operator.
    -1131            append: if `True`, AND the new expressions to any existing expression.
    -1132                Otherwise, this resets the expression.
    -1133            dialect: the dialect used to parse the input expressions.
    -1134            copy: if `False`, modify this expression instance in-place.
    -1135            opts: other options to use to parse the input expressions.
    -1136
    -1137        Returns:
    -1138            Delete: the modified expression.
    -1139        """
    -1140        return _apply_conjunction_builder(
    -1141            *expressions,
    -1142            instance=self,
    -1143            arg="where",
    -1144            append=append,
    -1145            into=Where,
    -1146            dialect=dialect,
    -1147            copy=copy,
    -1148            **opts,
    -1149        )
    +            
    1117    def where(
    +1118        self,
    +1119        *expressions: ExpOrStr,
    +1120        append: bool = True,
    +1121        dialect: DialectType = None,
    +1122        copy: bool = True,
    +1123        **opts,
    +1124    ) -> Delete:
    +1125        """
    +1126        Append to or set the WHERE expressions.
    +1127
    +1128        Example:
    +1129            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    +1130            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    +1131
    +1132        Args:
    +1133            *expressions: the SQL code strings to parse.
    +1134                If an `Expression` instance is passed, it will be used as-is.
    +1135                Multiple expressions are combined with an AND operator.
    +1136            append: if `True`, AND the new expressions to any existing expression.
    +1137                Otherwise, this resets the expression.
    +1138            dialect: the dialect used to parse the input expressions.
    +1139            copy: if `False`, modify this expression instance in-place.
    +1140            opts: other options to use to parse the input expressions.
    +1141
    +1142        Returns:
    +1143            Delete: the modified expression.
    +1144        """
    +1145        return _apply_conjunction_builder(
    +1146            *expressions,
    +1147            instance=self,
    +1148            arg="where",
    +1149            append=append,
    +1150            into=Where,
    +1151            dialect=dialect,
    +1152            copy=copy,
    +1153            **opts,
    +1154        )
     
    @@ -14049,40 +14148,40 @@ Otherwise, this resets the expression.
    -
    1151    def returning(
    -1152        self,
    -1153        expression: ExpOrStr,
    -1154        dialect: DialectType = None,
    -1155        copy: bool = True,
    -1156        **opts,
    -1157    ) -> Delete:
    -1158        """
    -1159        Set the RETURNING expression. Not supported by all dialects.
    -1160
    -1161        Example:
    -1162            >>> delete("tbl").returning("*", dialect="postgres").sql()
    -1163            'DELETE FROM tbl RETURNING *'
    -1164
    -1165        Args:
    -1166            expression: the SQL code strings to parse.
    -1167                If an `Expression` instance is passed, it will be used as-is.
    -1168            dialect: the dialect used to parse the input expressions.
    -1169            copy: if `False`, modify this expression instance in-place.
    -1170            opts: other options to use to parse the input expressions.
    -1171
    -1172        Returns:
    -1173            Delete: the modified expression.
    -1174        """
    -1175        return _apply_builder(
    -1176            expression=expression,
    -1177            instance=self,
    -1178            arg="returning",
    -1179            prefix="RETURNING",
    -1180            dialect=dialect,
    -1181            copy=copy,
    -1182            into=Returning,
    -1183            **opts,
    -1184        )
    +            
    1156    def returning(
    +1157        self,
    +1158        expression: ExpOrStr,
    +1159        dialect: DialectType = None,
    +1160        copy: bool = True,
    +1161        **opts,
    +1162    ) -> Delete:
    +1163        """
    +1164        Set the RETURNING expression. Not supported by all dialects.
    +1165
    +1166        Example:
    +1167            >>> delete("tbl").returning("*", dialect="postgres").sql()
    +1168            'DELETE FROM tbl RETURNING *'
    +1169
    +1170        Args:
    +1171            expression: the SQL code strings to parse.
    +1172                If an `Expression` instance is passed, it will be used as-is.
    +1173            dialect: the dialect used to parse the input expressions.
    +1174            copy: if `False`, modify this expression instance in-place.
    +1175            opts: other options to use to parse the input expressions.
    +1176
    +1177        Returns:
    +1178            Delete: the modified expression.
    +1179        """
    +1180        return _apply_builder(
    +1181            expression=expression,
    +1182            instance=self,
    +1183            arg="returning",
    +1184            prefix="RETURNING",
    +1185            dialect=dialect,
    +1186            copy=copy,
    +1187            into=Returning,
    +1188            **opts,
    +1189        )
     
    @@ -14174,15 +14273,16 @@ If an Expression instance is passed, it w
    -
    1187class Drop(Expression):
    -1188    arg_types = {
    -1189        "this": False,
    -1190        "kind": False,
    -1191        "exists": False,
    -1192        "temporary": False,
    -1193        "materialized": False,
    -1194        "cascade": False,
    -1195    }
    +            
    1192class Drop(Expression):
    +1193    arg_types = {
    +1194        "this": False,
    +1195        "kind": False,
    +1196        "exists": False,
    +1197        "temporary": False,
    +1198        "materialized": False,
    +1199        "cascade": False,
    +1200        "constraints": False,
    +1201    }
     
    @@ -14245,8 +14345,8 @@ If an Expression instance is passed, it w
    -
    1198class Filter(Expression):
    -1199    arg_types = {"this": True, "expression": True}
    +            
    1204class Filter(Expression):
    +1205    arg_types = {"this": True, "expression": True}
     
    @@ -14309,8 +14409,8 @@ If an Expression instance is passed, it w
    -
    1202class Check(Expression):
    -1203    pass
    +            
    1208class Check(Expression):
    +1209    pass
     
    @@ -14373,9 +14473,9 @@ If an Expression instance is passed, it w
    -
    1206class Directory(Expression):
    -1207    # https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-dml-insert-overwrite-directory-hive.html
    -1208    arg_types = {"this": True, "local": False, "row_format": False}
    +            
    1212class Directory(Expression):
    +1213    # https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-dml-insert-overwrite-directory-hive.html
    +1214    arg_types = {"this": True, "local": False, "row_format": False}
     
    @@ -14438,13 +14538,13 @@ If an Expression instance is passed, it w
    -
    1211class ForeignKey(Expression):
    -1212    arg_types = {
    -1213        "expressions": True,
    -1214        "reference": False,
    -1215        "delete": False,
    -1216        "update": False,
    -1217    }
    +            
    1217class ForeignKey(Expression):
    +1218    arg_types = {
    +1219        "expressions": True,
    +1220        "reference": False,
    +1221        "delete": False,
    +1222        "update": False,
    +1223    }
     
    @@ -14507,8 +14607,8 @@ If an Expression instance is passed, it w
    -
    1220class PrimaryKey(Expression):
    -1221    arg_types = {"expressions": True, "options": False}
    +            
    1226class PrimaryKey(Expression):
    +1227    arg_types = {"expressions": True, "options": False}
     
    @@ -14571,8 +14671,8 @@ If an Expression instance is passed, it w
    -
    1224class Unique(Expression):
    -1225    arg_types = {"expressions": True}
    +            
    1230class Unique(Expression):
    +1231    arg_types = {"expressions": True}
     
    @@ -14635,8 +14735,8 @@ If an Expression instance is passed, it w
    -
    1230class Into(Expression):
    -1231    arg_types = {"this": True, "temporary": False, "unlogged": False}
    +            
    1236class Into(Expression):
    +1237    arg_types = {"this": True, "temporary": False, "unlogged": False}
     
    @@ -14699,8 +14799,8 @@ If an Expression instance is passed, it w
    -
    1234class From(Expression):
    -1235    arg_types = {"expressions": True}
    +            
    1240class From(Expression):
    +1241    arg_types = {"expressions": True}
     
    @@ -14763,8 +14863,8 @@ If an Expression instance is passed, it w
    -
    1238class Having(Expression):
    -1239    pass
    +            
    1244class Having(Expression):
    +1245    pass
     
    @@ -14827,8 +14927,8 @@ If an Expression instance is passed, it w
    -
    1242class Hint(Expression):
    -1243    arg_types = {"expressions": True}
    +            
    1248class Hint(Expression):
    +1249    arg_types = {"expressions": True}
     
    @@ -14891,8 +14991,8 @@ If an Expression instance is passed, it w
    -
    1246class JoinHint(Expression):
    -1247    arg_types = {"this": True, "expressions": True}
    +            
    1252class JoinHint(Expression):
    +1253    arg_types = {"this": True, "expressions": True}
     
    @@ -14955,22 +15055,22 @@ If an Expression instance is passed, it w
    -
    1250class Identifier(Expression):
    -1251    arg_types = {"this": True, "quoted": False}
    -1252
    -1253    @property
    -1254    def quoted(self):
    -1255        return bool(self.args.get("quoted"))
    -1256
    -1257    @property
    -1258    def hashable_args(self) -> t.Any:
    -1259        if self.quoted and any(char.isupper() for char in self.this):
    -1260            return (self.this, self.quoted)
    -1261        return self.this.lower()
    +            
    1256class Identifier(Expression):
    +1257    arg_types = {"this": True, "quoted": False}
    +1258
    +1259    @property
    +1260    def quoted(self):
    +1261        return bool(self.args.get("quoted"))
     1262
     1263    @property
    -1264    def output_name(self):
    -1265        return self.name
    +1264    def hashable_args(self) -> t.Any:
    +1265        if self.quoted and any(char.isupper() for char in self.this):
    +1266            return (self.this, self.quoted)
    +1267        return self.this.lower()
    +1268
    +1269    @property
    +1270    def output_name(self):
    +1271        return self.name
     
    @@ -15062,16 +15162,16 @@ If an Expression instance is passed, it w
    -
    1268class Index(Expression):
    -1269    arg_types = {
    -1270        "this": False,
    -1271        "table": False,
    -1272        "where": False,
    -1273        "columns": False,
    -1274        "unique": False,
    -1275        "primary": False,
    -1276        "amp": False,  # teradata
    -1277    }
    +            
    1274class Index(Expression):
    +1275    arg_types = {
    +1276        "this": False,
    +1277        "table": False,
    +1278        "where": False,
    +1279        "columns": False,
    +1280        "unique": False,
    +1281        "primary": False,
    +1282        "amp": False,  # teradata
    +1283    }
     
    @@ -15134,17 +15234,17 @@ If an Expression instance is passed, it w
    -
    1280class Insert(Expression):
    -1281    arg_types = {
    -1282        "with": False,
    -1283        "this": True,
    -1284        "expression": False,
    -1285        "returning": False,
    -1286        "overwrite": False,
    -1287        "exists": False,
    -1288        "partition": False,
    -1289        "alternative": False,
    -1290    }
    +            
    1286class Insert(Expression):
    +1287    arg_types = {
    +1288        "with": False,
    +1289        "this": True,
    +1290        "expression": False,
    +1291        "returning": False,
    +1292        "overwrite": False,
    +1293        "exists": False,
    +1294        "partition": False,
    +1295        "alternative": False,
    +1296    }
     
    @@ -15207,8 +15307,8 @@ If an Expression instance is passed, it w
    -
    1293class Returning(Expression):
    -1294    arg_types = {"expressions": True}
    +            
    1299class Returning(Expression):
    +1300    arg_types = {"expressions": True}
     
    @@ -15271,8 +15371,8 @@ If an Expression instance is passed, it w
    -
    1298class Introducer(Expression):
    -1299    arg_types = {"this": True, "expression": True}
    +            
    1304class Introducer(Expression):
    +1305    arg_types = {"this": True, "expression": True}
     
    @@ -15335,8 +15435,8 @@ If an Expression instance is passed, it w
    -
    1303class National(Expression):
    -1304    pass
    +            
    1309class National(Expression):
    +1310    pass
     
    @@ -15399,16 +15499,16 @@ If an Expression instance is passed, it w
    -
    1307class LoadData(Expression):
    -1308    arg_types = {
    -1309        "this": True,
    -1310        "local": False,
    -1311        "overwrite": False,
    -1312        "inpath": True,
    -1313        "partition": False,
    -1314        "input_format": False,
    -1315        "serde": False,
    -1316    }
    +            
    1313class LoadData(Expression):
    +1314    arg_types = {
    +1315        "this": True,
    +1316        "local": False,
    +1317        "overwrite": False,
    +1318        "inpath": True,
    +1319        "partition": False,
    +1320        "input_format": False,
    +1321        "serde": False,
    +1322    }
     
    @@ -15471,8 +15571,8 @@ If an Expression instance is passed, it w
    -
    1319class Partition(Expression):
    -1320    arg_types = {"expressions": True}
    +            
    1325class Partition(Expression):
    +1326    arg_types = {"expressions": True}
     
    @@ -15535,8 +15635,8 @@ If an Expression instance is passed, it w
    -
    1323class Fetch(Expression):
    -1324    arg_types = {"direction": False, "count": False}
    +            
    1329class Fetch(Expression):
    +1330    arg_types = {"direction": False, "count": False}
     
    @@ -15599,13 +15699,13 @@ If an Expression instance is passed, it w
    -
    1327class Group(Expression):
    -1328    arg_types = {
    -1329        "expressions": False,
    -1330        "grouping_sets": False,
    -1331        "cube": False,
    -1332        "rollup": False,
    -1333    }
    +            
    1333class Group(Expression):
    +1334    arg_types = {
    +1335        "expressions": False,
    +1336        "grouping_sets": False,
    +1337        "cube": False,
    +1338        "rollup": False,
    +1339    }
     
    @@ -15668,8 +15768,8 @@ If an Expression instance is passed, it w
    -
    1336class Lambda(Expression):
    -1337    arg_types = {"this": True, "expressions": True}
    +            
    1342class Lambda(Expression):
    +1343    arg_types = {"this": True, "expressions": True}
     
    @@ -15732,8 +15832,8 @@ If an Expression instance is passed, it w
    -
    1340class Limit(Expression):
    -1341    arg_types = {"this": False, "expression": True}
    +            
    1346class Limit(Expression):
    +1347    arg_types = {"this": False, "expression": True}
     
    @@ -15796,24 +15896,24 @@ If an Expression instance is passed, it w
    -
    1344class Literal(Condition):
    -1345    arg_types = {"this": True, "is_string": True}
    -1346
    -1347    @property
    -1348    def hashable_args(self) -> t.Any:
    -1349        return (self.this, self.args.get("is_string"))
    -1350
    -1351    @classmethod
    -1352    def number(cls, number) -> Literal:
    -1353        return cls(this=str(number), is_string=False)
    -1354
    -1355    @classmethod
    -1356    def string(cls, string) -> Literal:
    -1357        return cls(this=str(string), is_string=True)
    -1358
    -1359    @property
    -1360    def output_name(self):
    -1361        return self.name
    +            
    1350class Literal(Condition):
    +1351    arg_types = {"this": True, "is_string": True}
    +1352
    +1353    @property
    +1354    def hashable_args(self) -> t.Any:
    +1355        return (self.this, self.args.get("is_string"))
    +1356
    +1357    @classmethod
    +1358    def number(cls, number) -> Literal:
    +1359        return cls(this=str(number), is_string=False)
    +1360
    +1361    @classmethod
    +1362    def string(cls, string) -> Literal:
    +1363        return cls(this=str(string), is_string=True)
    +1364
    +1365    @property
    +1366    def output_name(self):
    +1367        return self.name
     
    @@ -15831,9 +15931,9 @@ If an Expression instance is passed, it w
    -
    1351    @classmethod
    -1352    def number(cls, number) -> Literal:
    -1353        return cls(this=str(number), is_string=False)
    +            
    1357    @classmethod
    +1358    def number(cls, number) -> Literal:
    +1359        return cls(this=str(number), is_string=False)
     
    @@ -15852,9 +15952,9 @@ If an Expression instance is passed, it w
    -
    1355    @classmethod
    -1356    def string(cls, string) -> Literal:
    -1357        return cls(this=str(string), is_string=True)
    +            
    1361    @classmethod
    +1362    def string(cls, string) -> Literal:
    +1363        return cls(this=str(string), is_string=True)
     
    @@ -15953,100 +16053,100 @@ If an Expression instance is passed, it w
    -
    1364class Join(Expression):
    -1365    arg_types = {
    -1366        "this": True,
    -1367        "on": False,
    -1368        "side": False,
    -1369        "kind": False,
    -1370        "using": False,
    -1371        "natural": False,
    -1372    }
    -1373
    -1374    @property
    -1375    def kind(self):
    -1376        return self.text("kind").upper()
    -1377
    -1378    @property
    -1379    def side(self):
    -1380        return self.text("side").upper()
    -1381
    -1382    @property
    -1383    def alias_or_name(self):
    -1384        return self.this.alias_or_name
    -1385
    -1386    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1387        """
    -1388        Append to or set the ON expressions.
    -1389
    -1390        Example:
    -1391            >>> import sqlglot
    -1392            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    -1393            'JOIN x ON y = 1'
    -1394
    -1395        Args:
    -1396            *expressions (str | Expression): the SQL code strings to parse.
    -1397                If an `Expression` instance is passed, it will be used as-is.
    -1398                Multiple expressions are combined with an AND operator.
    -1399            append (bool): if `True`, AND the new expressions to any existing expression.
    -1400                Otherwise, this resets the expression.
    -1401            dialect (str): the dialect used to parse the input expressions.
    -1402            copy (bool): if `False`, modify this expression instance in-place.
    -1403            opts (kwargs): other options to use to parse the input expressions.
    -1404
    -1405        Returns:
    -1406            Join: the modified join expression.
    -1407        """
    -1408        join = _apply_conjunction_builder(
    -1409            *expressions,
    -1410            instance=self,
    -1411            arg="on",
    -1412            append=append,
    -1413            dialect=dialect,
    -1414            copy=copy,
    -1415            **opts,
    -1416        )
    -1417
    -1418        if join.kind == "CROSS":
    -1419            join.set("kind", None)
    -1420
    -1421        return join
    -1422
    -1423    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1424        """
    -1425        Append to or set the USING expressions.
    +            
    1370class Join(Expression):
    +1371    arg_types = {
    +1372        "this": True,
    +1373        "on": False,
    +1374        "side": False,
    +1375        "kind": False,
    +1376        "using": False,
    +1377        "natural": False,
    +1378    }
    +1379
    +1380    @property
    +1381    def kind(self):
    +1382        return self.text("kind").upper()
    +1383
    +1384    @property
    +1385    def side(self):
    +1386        return self.text("side").upper()
    +1387
    +1388    @property
    +1389    def alias_or_name(self):
    +1390        return self.this.alias_or_name
    +1391
    +1392    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1393        """
    +1394        Append to or set the ON expressions.
    +1395
    +1396        Example:
    +1397            >>> import sqlglot
    +1398            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    +1399            'JOIN x ON y = 1'
    +1400
    +1401        Args:
    +1402            *expressions (str | Expression): the SQL code strings to parse.
    +1403                If an `Expression` instance is passed, it will be used as-is.
    +1404                Multiple expressions are combined with an AND operator.
    +1405            append (bool): if `True`, AND the new expressions to any existing expression.
    +1406                Otherwise, this resets the expression.
    +1407            dialect (str): the dialect used to parse the input expressions.
    +1408            copy (bool): if `False`, modify this expression instance in-place.
    +1409            opts (kwargs): other options to use to parse the input expressions.
    +1410
    +1411        Returns:
    +1412            Join: the modified join expression.
    +1413        """
    +1414        join = _apply_conjunction_builder(
    +1415            *expressions,
    +1416            instance=self,
    +1417            arg="on",
    +1418            append=append,
    +1419            dialect=dialect,
    +1420            copy=copy,
    +1421            **opts,
    +1422        )
    +1423
    +1424        if join.kind == "CROSS":
    +1425            join.set("kind", None)
     1426
    -1427        Example:
    -1428            >>> import sqlglot
    -1429            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    -1430            'JOIN x USING (foo, bla)'
    -1431
    -1432        Args:
    -1433            *expressions (str | Expression): the SQL code strings to parse.
    -1434                If an `Expression` instance is passed, it will be used as-is.
    -1435            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    -1436                Otherwise, this resets the expression.
    -1437            dialect (str): the dialect used to parse the input expressions.
    -1438            copy (bool): if `False`, modify this expression instance in-place.
    -1439            opts (kwargs): other options to use to parse the input expressions.
    -1440
    -1441        Returns:
    -1442            Join: the modified join expression.
    -1443        """
    -1444        join = _apply_list_builder(
    -1445            *expressions,
    -1446            instance=self,
    -1447            arg="using",
    -1448            append=append,
    -1449            dialect=dialect,
    -1450            copy=copy,
    -1451            **opts,
    -1452        )
    -1453
    -1454        if join.kind == "CROSS":
    -1455            join.set("kind", None)
    -1456
    -1457        return join
    +1427        return join
    +1428
    +1429    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1430        """
    +1431        Append to or set the USING expressions.
    +1432
    +1433        Example:
    +1434            >>> import sqlglot
    +1435            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    +1436            'JOIN x USING (foo, bla)'
    +1437
    +1438        Args:
    +1439            *expressions (str | Expression): the SQL code strings to parse.
    +1440                If an `Expression` instance is passed, it will be used as-is.
    +1441            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    +1442                Otherwise, this resets the expression.
    +1443            dialect (str): the dialect used to parse the input expressions.
    +1444            copy (bool): if `False`, modify this expression instance in-place.
    +1445            opts (kwargs): other options to use to parse the input expressions.
    +1446
    +1447        Returns:
    +1448            Join: the modified join expression.
    +1449        """
    +1450        join = _apply_list_builder(
    +1451            *expressions,
    +1452            instance=self,
    +1453            arg="using",
    +1454            append=append,
    +1455            dialect=dialect,
    +1456            copy=copy,
    +1457            **opts,
    +1458        )
    +1459
    +1460        if join.kind == "CROSS":
    +1461            join.set("kind", None)
    +1462
    +1463        return join
     
    @@ -16063,42 +16163,42 @@ If an Expression instance is passed, it w
    -
    1386    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1387        """
    -1388        Append to or set the ON expressions.
    -1389
    -1390        Example:
    -1391            >>> import sqlglot
    -1392            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    -1393            'JOIN x ON y = 1'
    -1394
    -1395        Args:
    -1396            *expressions (str | Expression): the SQL code strings to parse.
    -1397                If an `Expression` instance is passed, it will be used as-is.
    -1398                Multiple expressions are combined with an AND operator.
    -1399            append (bool): if `True`, AND the new expressions to any existing expression.
    -1400                Otherwise, this resets the expression.
    -1401            dialect (str): the dialect used to parse the input expressions.
    -1402            copy (bool): if `False`, modify this expression instance in-place.
    -1403            opts (kwargs): other options to use to parse the input expressions.
    -1404
    -1405        Returns:
    -1406            Join: the modified join expression.
    -1407        """
    -1408        join = _apply_conjunction_builder(
    -1409            *expressions,
    -1410            instance=self,
    -1411            arg="on",
    -1412            append=append,
    -1413            dialect=dialect,
    -1414            copy=copy,
    -1415            **opts,
    -1416        )
    -1417
    -1418        if join.kind == "CROSS":
    -1419            join.set("kind", None)
    -1420
    -1421        return join
    +            
    1392    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1393        """
    +1394        Append to or set the ON expressions.
    +1395
    +1396        Example:
    +1397            >>> import sqlglot
    +1398            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    +1399            'JOIN x ON y = 1'
    +1400
    +1401        Args:
    +1402            *expressions (str | Expression): the SQL code strings to parse.
    +1403                If an `Expression` instance is passed, it will be used as-is.
    +1404                Multiple expressions are combined with an AND operator.
    +1405            append (bool): if `True`, AND the new expressions to any existing expression.
    +1406                Otherwise, this resets the expression.
    +1407            dialect (str): the dialect used to parse the input expressions.
    +1408            copy (bool): if `False`, modify this expression instance in-place.
    +1409            opts (kwargs): other options to use to parse the input expressions.
    +1410
    +1411        Returns:
    +1412            Join: the modified join expression.
    +1413        """
    +1414        join = _apply_conjunction_builder(
    +1415            *expressions,
    +1416            instance=self,
    +1417            arg="on",
    +1418            append=append,
    +1419            dialect=dialect,
    +1420            copy=copy,
    +1421            **opts,
    +1422        )
    +1423
    +1424        if join.kind == "CROSS":
    +1425            join.set("kind", None)
    +1426
    +1427        return join
     
    @@ -16148,41 +16248,41 @@ Otherwise, this resets the expression.
    -
    1423    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1424        """
    -1425        Append to or set the USING expressions.
    -1426
    -1427        Example:
    -1428            >>> import sqlglot
    -1429            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    -1430            'JOIN x USING (foo, bla)'
    -1431
    -1432        Args:
    -1433            *expressions (str | Expression): the SQL code strings to parse.
    -1434                If an `Expression` instance is passed, it will be used as-is.
    -1435            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    -1436                Otherwise, this resets the expression.
    -1437            dialect (str): the dialect used to parse the input expressions.
    -1438            copy (bool): if `False`, modify this expression instance in-place.
    -1439            opts (kwargs): other options to use to parse the input expressions.
    -1440
    -1441        Returns:
    -1442            Join: the modified join expression.
    -1443        """
    -1444        join = _apply_list_builder(
    -1445            *expressions,
    -1446            instance=self,
    -1447            arg="using",
    -1448            append=append,
    -1449            dialect=dialect,
    -1450            copy=copy,
    -1451            **opts,
    -1452        )
    -1453
    -1454        if join.kind == "CROSS":
    -1455            join.set("kind", None)
    -1456
    -1457        return join
    +            
    1429    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1430        """
    +1431        Append to or set the USING expressions.
    +1432
    +1433        Example:
    +1434            >>> import sqlglot
    +1435            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    +1436            'JOIN x USING (foo, bla)'
    +1437
    +1438        Args:
    +1439            *expressions (str | Expression): the SQL code strings to parse.
    +1440                If an `Expression` instance is passed, it will be used as-is.
    +1441            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    +1442                Otherwise, this resets the expression.
    +1443            dialect (str): the dialect used to parse the input expressions.
    +1444            copy (bool): if `False`, modify this expression instance in-place.
    +1445            opts (kwargs): other options to use to parse the input expressions.
    +1446
    +1447        Returns:
    +1448            Join: the modified join expression.
    +1449        """
    +1450        join = _apply_list_builder(
    +1451            *expressions,
    +1452            instance=self,
    +1453            arg="using",
    +1454            append=append,
    +1455            dialect=dialect,
    +1456            copy=copy,
    +1457            **opts,
    +1458        )
    +1459
    +1460        if join.kind == "CROSS":
    +1461            join.set("kind", None)
    +1462
    +1463        return join
     
    @@ -16277,8 +16377,8 @@ Otherwise, this resets the expression.
    -
    1460class Lateral(UDTF):
    -1461    arg_types = {"this": True, "view": False, "outer": False, "alias": False}
    +            
    1466class Lateral(UDTF):
    +1467    arg_types = {"this": True, "view": False, "outer": False, "alias": False}
     
    @@ -16347,16 +16447,16 @@ Otherwise, this resets the expression.
    -
    1464class MatchRecognize(Expression):
    -1465    arg_types = {
    -1466        "partition_by": False,
    -1467        "order": False,
    -1468        "measures": False,
    -1469        "rows": False,
    -1470        "after": False,
    -1471        "pattern": False,
    -1472        "define": False,
    -1473    }
    +            
    1470class MatchRecognize(Expression):
    +1471    arg_types = {
    +1472        "partition_by": False,
    +1473        "order": False,
    +1474        "measures": False,
    +1475        "rows": False,
    +1476        "after": False,
    +1477        "pattern": False,
    +1478        "define": False,
    +1479    }
     
    @@ -16419,8 +16519,8 @@ Otherwise, this resets the expression.
    -
    1478class Final(Expression):
    -1479    pass
    +            
    1484class Final(Expression):
    +1485    pass
     
    @@ -16483,8 +16583,8 @@ Otherwise, this resets the expression.
    -
    1482class Offset(Expression):
    -1483    arg_types = {"this": False, "expression": True}
    +            
    1488class Offset(Expression):
    +1489    arg_types = {"this": False, "expression": True}
     
    @@ -16547,8 +16647,8 @@ Otherwise, this resets the expression.
    -
    1486class Order(Expression):
    -1487    arg_types = {"this": False, "expressions": True}
    +            
    1492class Order(Expression):
    +1493    arg_types = {"this": False, "expressions": True}
     
    @@ -16611,8 +16711,8 @@ Otherwise, this resets the expression.
    -
    1492class Cluster(Order):
    -1493    pass
    +            
    1498class Cluster(Order):
    +1499    pass
     
    @@ -16675,8 +16775,8 @@ Otherwise, this resets the expression.
    -
    1496class Distribute(Order):
    -1497    pass
    +            
    1502class Distribute(Order):
    +1503    pass
     
    @@ -16739,8 +16839,8 @@ Otherwise, this resets the expression.
    -
    1500class Sort(Order):
    -1501    pass
    +            
    1506class Sort(Order):
    +1507    pass
     
    @@ -16803,8 +16903,8 @@ Otherwise, this resets the expression.
    -
    1504class Ordered(Expression):
    -1505    arg_types = {"this": True, "desc": True, "nulls_first": True}
    +            
    1510class Ordered(Expression):
    +1511    arg_types = {"this": True, "desc": True, "nulls_first": True}
     
    @@ -16867,8 +16967,8 @@ Otherwise, this resets the expression.
    -
    1508class Property(Expression):
    -1509    arg_types = {"this": True, "value": True}
    +            
    1514class Property(Expression):
    +1515    arg_types = {"this": True, "value": True}
     
    @@ -16931,8 +17031,8 @@ Otherwise, this resets the expression.
    -
    1512class AfterJournalProperty(Property):
    -1513    arg_types = {"no": True, "dual": False, "local": False}
    +            
    1518class AfterJournalProperty(Property):
    +1519    arg_types = {"no": True, "dual": False, "local": False}
     
    @@ -16995,8 +17095,8 @@ Otherwise, this resets the expression.
    -
    1516class AlgorithmProperty(Property):
    -1517    arg_types = {"this": True}
    +            
    1522class AlgorithmProperty(Property):
    +1523    arg_types = {"this": True}
     
    @@ -17059,8 +17159,8 @@ Otherwise, this resets the expression.
    -
    1520class AutoIncrementProperty(Property):
    -1521    arg_types = {"this": True}
    +            
    1526class AutoIncrementProperty(Property):
    +1527    arg_types = {"this": True}
     
    @@ -17123,8 +17223,8 @@ Otherwise, this resets the expression.
    -
    1524class BlockCompressionProperty(Property):
    -1525    arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True}
    +            
    1530class BlockCompressionProperty(Property):
    +1531    arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True}
     
    @@ -17187,8 +17287,8 @@ Otherwise, this resets the expression.
    -
    1528class CharacterSetProperty(Property):
    -1529    arg_types = {"this": True, "default": True}
    +            
    1534class CharacterSetProperty(Property):
    +1535    arg_types = {"this": True, "default": True}
     
    @@ -17251,8 +17351,8 @@ Otherwise, this resets the expression.
    -
    1532class ChecksumProperty(Property):
    -1533    arg_types = {"on": False, "default": False}
    +            
    1538class ChecksumProperty(Property):
    +1539    arg_types = {"on": False, "default": False}
     
    @@ -17315,8 +17415,8 @@ Otherwise, this resets the expression.
    -
    1536class CollateProperty(Property):
    -1537    arg_types = {"this": True}
    +            
    1542class CollateProperty(Property):
    +1543    arg_types = {"this": True}
     
    @@ -17379,8 +17479,8 @@ Otherwise, this resets the expression.
    -
    1540class DataBlocksizeProperty(Property):
    -1541    arg_types = {"size": False, "units": False, "min": False, "default": False}
    +            
    1546class DataBlocksizeProperty(Property):
    +1547    arg_types = {"size": False, "units": False, "min": False, "default": False}
     
    @@ -17443,8 +17543,8 @@ Otherwise, this resets the expression.
    -
    1544class DefinerProperty(Property):
    -1545    arg_types = {"this": True}
    +            
    1550class DefinerProperty(Property):
    +1551    arg_types = {"this": True}
     
    @@ -17507,8 +17607,8 @@ Otherwise, this resets the expression.
    -
    1548class DistKeyProperty(Property):
    -1549    arg_types = {"this": True}
    +            
    1554class DistKeyProperty(Property):
    +1555    arg_types = {"this": True}
     
    @@ -17571,8 +17671,8 @@ Otherwise, this resets the expression.
    -
    1552class DistStyleProperty(Property):
    -1553    arg_types = {"this": True}
    +            
    1558class DistStyleProperty(Property):
    +1559    arg_types = {"this": True}
     
    @@ -17635,8 +17735,8 @@ Otherwise, this resets the expression.
    -
    1556class EngineProperty(Property):
    -1557    arg_types = {"this": True}
    +            
    1562class EngineProperty(Property):
    +1563    arg_types = {"this": True}
     
    @@ -17699,8 +17799,8 @@ Otherwise, this resets the expression.
    -
    1560class ExecuteAsProperty(Property):
    -1561    arg_types = {"this": True}
    +            
    1566class ExecuteAsProperty(Property):
    +1567    arg_types = {"this": True}
     
    @@ -17763,8 +17863,8 @@ Otherwise, this resets the expression.
    -
    1564class ExternalProperty(Property):
    -1565    arg_types = {"this": False}
    +            
    1570class ExternalProperty(Property):
    +1571    arg_types = {"this": False}
     
    @@ -17827,8 +17927,8 @@ Otherwise, this resets the expression.
    -
    1568class FallbackProperty(Property):
    -1569    arg_types = {"no": True, "protection": False}
    +            
    1574class FallbackProperty(Property):
    +1575    arg_types = {"no": True, "protection": False}
     
    @@ -17891,8 +17991,8 @@ Otherwise, this resets the expression.
    -
    1572class FileFormatProperty(Property):
    -1573    arg_types = {"this": True}
    +            
    1578class FileFormatProperty(Property):
    +1579    arg_types = {"this": True}
     
    @@ -17955,8 +18055,8 @@ Otherwise, this resets the expression.
    -
    1576class FreespaceProperty(Property):
    -1577    arg_types = {"this": True, "percent": False}
    +            
    1582class FreespaceProperty(Property):
    +1583    arg_types = {"this": True, "percent": False}
     
    @@ -18019,14 +18119,14 @@ Otherwise, this resets the expression.
    -
    1580class IsolatedLoadingProperty(Property):
    -1581    arg_types = {
    -1582        "no": True,
    -1583        "concurrent": True,
    -1584        "for_all": True,
    -1585        "for_insert": True,
    -1586        "for_none": True,
    -1587    }
    +            
    1586class IsolatedLoadingProperty(Property):
    +1587    arg_types = {
    +1588        "no": True,
    +1589        "concurrent": True,
    +1590        "for_all": True,
    +1591        "for_insert": True,
    +1592        "for_none": True,
    +1593    }
     
    @@ -18089,8 +18189,8 @@ Otherwise, this resets the expression.
    -
    1590class JournalProperty(Property):
    -1591    arg_types = {"no": True, "dual": False, "before": False}
    +            
    1596class JournalProperty(Property):
    +1597    arg_types = {"no": True, "dual": False, "before": False}
     
    @@ -18153,8 +18253,8 @@ Otherwise, this resets the expression.
    -
    1594class LanguageProperty(Property):
    -1595    arg_types = {"this": True}
    +            
    1600class LanguageProperty(Property):
    +1601    arg_types = {"this": True}
     
    @@ -18217,8 +18317,8 @@ Otherwise, this resets the expression.
    -
    1598class LikeProperty(Property):
    -1599    arg_types = {"this": True, "expressions": False}
    +            
    1604class LikeProperty(Property):
    +1605    arg_types = {"this": True, "expressions": False}
     
    @@ -18281,8 +18381,8 @@ Otherwise, this resets the expression.
    -
    1602class LocationProperty(Property):
    -1603    arg_types = {"this": True}
    +            
    1608class LocationProperty(Property):
    +1609    arg_types = {"this": True}
     
    @@ -18345,14 +18445,14 @@ Otherwise, this resets the expression.
    -
    1606class LockingProperty(Property):
    -1607    arg_types = {
    -1608        "this": False,
    -1609        "kind": True,
    -1610        "for_or_in": True,
    -1611        "lock_type": True,
    -1612        "override": False,
    -1613    }
    +            
    1612class LockingProperty(Property):
    +1613    arg_types = {
    +1614        "this": False,
    +1615        "kind": True,
    +1616        "for_or_in": True,
    +1617        "lock_type": True,
    +1618        "override": False,
    +1619    }
     
    @@ -18415,8 +18515,8 @@ Otherwise, this resets the expression.
    -
    1616class LogProperty(Property):
    -1617    arg_types = {"no": True}
    +            
    1622class LogProperty(Property):
    +1623    arg_types = {"no": True}
     
    @@ -18479,8 +18579,8 @@ Otherwise, this resets the expression.
    -
    1620class MaterializedProperty(Property):
    -1621    arg_types = {"this": False}
    +            
    1626class MaterializedProperty(Property):
    +1627    arg_types = {"this": False}
     
    @@ -18543,8 +18643,8 @@ Otherwise, this resets the expression.
    -
    1624class MergeBlockRatioProperty(Property):
    -1625    arg_types = {"this": False, "no": False, "default": False, "percent": False}
    +            
    1630class MergeBlockRatioProperty(Property):
    +1631    arg_types = {"this": False, "no": False, "default": False, "percent": False}
     
    @@ -18607,8 +18707,8 @@ Otherwise, this resets the expression.
    -
    1628class NoPrimaryIndexProperty(Property):
    -1629    arg_types = {"this": False}
    +            
    1634class NoPrimaryIndexProperty(Property):
    +1635    arg_types = {"this": False}
     
    @@ -18671,8 +18771,8 @@ Otherwise, this resets the expression.
    -
    1632class OnCommitProperty(Property):
    -1633    arg_type = {"this": False}
    +            
    1638class OnCommitProperty(Property):
    +1639    arg_type = {"this": False}
     
    @@ -18735,8 +18835,8 @@ Otherwise, this resets the expression.
    -
    1636class PartitionedByProperty(Property):
    -1637    arg_types = {"this": True}
    +            
    1642class PartitionedByProperty(Property):
    +1643    arg_types = {"this": True}
     
    @@ -18799,8 +18899,8 @@ Otherwise, this resets the expression.
    -
    1640class ReturnsProperty(Property):
    -1641    arg_types = {"this": True, "is_table": False, "table": False}
    +            
    1646class ReturnsProperty(Property):
    +1647    arg_types = {"this": True, "is_table": False, "table": False}
     
    @@ -18863,17 +18963,17 @@ Otherwise, this resets the expression.
    -
    1644class RowFormatDelimitedProperty(Property):
    -1645    # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml
    -1646    arg_types = {
    -1647        "fields": False,
    -1648        "escaped": False,
    -1649        "collection_items": False,
    -1650        "map_keys": False,
    -1651        "lines": False,
    -1652        "null": False,
    -1653        "serde": False,
    -1654    }
    +            
    1650class RowFormatDelimitedProperty(Property):
    +1651    # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml
    +1652    arg_types = {
    +1653        "fields": False,
    +1654        "escaped": False,
    +1655        "collection_items": False,
    +1656        "map_keys": False,
    +1657        "lines": False,
    +1658        "null": False,
    +1659        "serde": False,
    +1660    }
     
    @@ -18936,8 +19036,8 @@ Otherwise, this resets the expression.
    -
    1657class RowFormatSerdeProperty(Property):
    -1658    arg_types = {"this": True}
    +            
    1663class RowFormatSerdeProperty(Property):
    +1664    arg_types = {"this": True}
     
    @@ -19000,8 +19100,8 @@ Otherwise, this resets the expression.
    -
    1661class SchemaCommentProperty(Property):
    -1662    arg_types = {"this": True}
    +            
    1667class SchemaCommentProperty(Property):
    +1668    arg_types = {"this": True}
     
    @@ -19064,8 +19164,8 @@ Otherwise, this resets the expression.
    -
    1665class SerdeProperties(Property):
    -1666    arg_types = {"expressions": True}
    +            
    1671class SerdeProperties(Property):
    +1672    arg_types = {"expressions": True}
     
    @@ -19128,8 +19228,8 @@ Otherwise, this resets the expression.
    -
    1669class SetProperty(Property):
    -1670    arg_types = {"multi": True}
    +            
    1675class SetProperty(Property):
    +1676    arg_types = {"multi": True}
     
    @@ -19192,8 +19292,8 @@ Otherwise, this resets the expression.
    -
    1673class SortKeyProperty(Property):
    -1674    arg_types = {"this": True, "compound": False}
    +            
    1679class SortKeyProperty(Property):
    +1680    arg_types = {"this": True, "compound": False}
     
    @@ -19256,8 +19356,8 @@ Otherwise, this resets the expression.
    -
    1677class SqlSecurityProperty(Property):
    -1678    arg_types = {"definer": True}
    +            
    1683class SqlSecurityProperty(Property):
    +1684    arg_types = {"definer": True}
     
    @@ -19320,8 +19420,8 @@ Otherwise, this resets the expression.
    -
    1681class TableFormatProperty(Property):
    -1682    arg_types = {"this": True}
    +            
    1687class TableFormatProperty(Property):
    +1688    arg_types = {"this": True}
     
    @@ -19384,8 +19484,8 @@ Otherwise, this resets the expression.
    -
    1685class TemporaryProperty(Property):
    -1686    arg_types = {"global_": True}
    +            
    1691class TemporaryProperty(Property):
    +1692    arg_types = {"global_": True}
     
    @@ -19448,8 +19548,8 @@ Otherwise, this resets the expression.
    -
    1689class TransientProperty(Property):
    -1690    arg_types = {"this": False}
    +            
    1695class TransientProperty(Property):
    +1696    arg_types = {"this": False}
     
    @@ -19512,8 +19612,8 @@ Otherwise, this resets the expression.
    -
    1693class VolatilityProperty(Property):
    -1694    arg_types = {"this": True}
    +            
    1699class VolatilityProperty(Property):
    +1700    arg_types = {"this": True}
     
    @@ -19576,8 +19676,8 @@ Otherwise, this resets the expression.
    -
    1697class WithDataProperty(Property):
    -1698    arg_types = {"no": True, "statistics": False}
    +            
    1703class WithDataProperty(Property):
    +1704    arg_types = {"no": True, "statistics": False}
     
    @@ -19640,8 +19740,8 @@ Otherwise, this resets the expression.
    -
    1701class WithJournalTableProperty(Property):
    -1702    arg_types = {"this": True}
    +            
    1707class WithJournalTableProperty(Property):
    +1708    arg_types = {"this": True}
     
    @@ -19704,65 +19804,65 @@ Otherwise, this resets the expression.
    -
    1705class Properties(Expression):
    -1706    arg_types = {"expressions": True}
    -1707
    -1708    NAME_TO_PROPERTY = {
    -1709        "ALGORITHM": AlgorithmProperty,
    -1710        "AUTO_INCREMENT": AutoIncrementProperty,
    -1711        "CHARACTER SET": CharacterSetProperty,
    -1712        "COLLATE": CollateProperty,
    -1713        "COMMENT": SchemaCommentProperty,
    -1714        "DEFINER": DefinerProperty,
    -1715        "DISTKEY": DistKeyProperty,
    -1716        "DISTSTYLE": DistStyleProperty,
    -1717        "ENGINE": EngineProperty,
    -1718        "EXECUTE AS": ExecuteAsProperty,
    -1719        "FORMAT": FileFormatProperty,
    -1720        "LANGUAGE": LanguageProperty,
    -1721        "LOCATION": LocationProperty,
    -1722        "PARTITIONED_BY": PartitionedByProperty,
    -1723        "RETURNS": ReturnsProperty,
    -1724        "SORTKEY": SortKeyProperty,
    -1725        "TABLE_FORMAT": TableFormatProperty,
    -1726    }
    -1727
    -1728    PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()}
    -1729
    -1730    # CREATE property locations
    -1731    # Form: schema specified
    -1732    #   create [POST_CREATE]
    -1733    #     table a [POST_NAME]
    -1734    #     (b int) [POST_SCHEMA]
    -1735    #     with ([POST_WITH])
    -1736    #     index (b) [POST_INDEX]
    -1737    #
    -1738    # Form: alias selection
    -1739    #   create [POST_CREATE]
    -1740    #     table a [POST_NAME]
    -1741    #     as [POST_ALIAS] (select * from b) [POST_EXPRESSION]
    -1742    #     index (c) [POST_INDEX]
    -1743    class Location(AutoName):
    -1744        POST_CREATE = auto()
    -1745        POST_NAME = auto()
    -1746        POST_SCHEMA = auto()
    -1747        POST_WITH = auto()
    -1748        POST_ALIAS = auto()
    -1749        POST_EXPRESSION = auto()
    -1750        POST_INDEX = auto()
    -1751        UNSUPPORTED = auto()
    -1752
    -1753    @classmethod
    -1754    def from_dict(cls, properties_dict) -> Properties:
    -1755        expressions = []
    -1756        for key, value in properties_dict.items():
    -1757            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    -1758            if property_cls:
    -1759                expressions.append(property_cls(this=convert(value)))
    -1760            else:
    -1761                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    -1762
    -1763        return cls(expressions=expressions)
    +            
    1711class Properties(Expression):
    +1712    arg_types = {"expressions": True}
    +1713
    +1714    NAME_TO_PROPERTY = {
    +1715        "ALGORITHM": AlgorithmProperty,
    +1716        "AUTO_INCREMENT": AutoIncrementProperty,
    +1717        "CHARACTER SET": CharacterSetProperty,
    +1718        "COLLATE": CollateProperty,
    +1719        "COMMENT": SchemaCommentProperty,
    +1720        "DEFINER": DefinerProperty,
    +1721        "DISTKEY": DistKeyProperty,
    +1722        "DISTSTYLE": DistStyleProperty,
    +1723        "ENGINE": EngineProperty,
    +1724        "EXECUTE AS": ExecuteAsProperty,
    +1725        "FORMAT": FileFormatProperty,
    +1726        "LANGUAGE": LanguageProperty,
    +1727        "LOCATION": LocationProperty,
    +1728        "PARTITIONED_BY": PartitionedByProperty,
    +1729        "RETURNS": ReturnsProperty,
    +1730        "SORTKEY": SortKeyProperty,
    +1731        "TABLE_FORMAT": TableFormatProperty,
    +1732    }
    +1733
    +1734    PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()}
    +1735
    +1736    # CREATE property locations
    +1737    # Form: schema specified
    +1738    #   create [POST_CREATE]
    +1739    #     table a [POST_NAME]
    +1740    #     (b int) [POST_SCHEMA]
    +1741    #     with ([POST_WITH])
    +1742    #     index (b) [POST_INDEX]
    +1743    #
    +1744    # Form: alias selection
    +1745    #   create [POST_CREATE]
    +1746    #     table a [POST_NAME]
    +1747    #     as [POST_ALIAS] (select * from b) [POST_EXPRESSION]
    +1748    #     index (c) [POST_INDEX]
    +1749    class Location(AutoName):
    +1750        POST_CREATE = auto()
    +1751        POST_NAME = auto()
    +1752        POST_SCHEMA = auto()
    +1753        POST_WITH = auto()
    +1754        POST_ALIAS = auto()
    +1755        POST_EXPRESSION = auto()
    +1756        POST_INDEX = auto()
    +1757        UNSUPPORTED = auto()
    +1758
    +1759    @classmethod
    +1760    def from_dict(cls, properties_dict) -> Properties:
    +1761        expressions = []
    +1762        for key, value in properties_dict.items():
    +1763            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    +1764            if property_cls:
    +1765                expressions.append(property_cls(this=convert(value)))
    +1766            else:
    +1767                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    +1768
    +1769        return cls(expressions=expressions)
     
    @@ -19780,17 +19880,17 @@ Otherwise, this resets the expression.
    -
    1753    @classmethod
    -1754    def from_dict(cls, properties_dict) -> Properties:
    -1755        expressions = []
    -1756        for key, value in properties_dict.items():
    -1757            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    -1758            if property_cls:
    -1759                expressions.append(property_cls(this=convert(value)))
    -1760            else:
    -1761                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    -1762
    -1763        return cls(expressions=expressions)
    +            
    1759    @classmethod
    +1760    def from_dict(cls, properties_dict) -> Properties:
    +1761        expressions = []
    +1762        for key, value in properties_dict.items():
    +1763            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    +1764            if property_cls:
    +1765                expressions.append(property_cls(this=convert(value)))
    +1766            else:
    +1767                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    +1768
    +1769        return cls(expressions=expressions)
     
    @@ -19854,15 +19954,15 @@ Otherwise, this resets the expression.
    -
    1743    class Location(AutoName):
    -1744        POST_CREATE = auto()
    -1745        POST_NAME = auto()
    -1746        POST_SCHEMA = auto()
    -1747        POST_WITH = auto()
    -1748        POST_ALIAS = auto()
    -1749        POST_EXPRESSION = auto()
    -1750        POST_INDEX = auto()
    -1751        UNSUPPORTED = auto()
    +            
    1749    class Location(AutoName):
    +1750        POST_CREATE = auto()
    +1751        POST_NAME = auto()
    +1752        POST_SCHEMA = auto()
    +1753        POST_WITH = auto()
    +1754        POST_ALIAS = auto()
    +1755        POST_EXPRESSION = auto()
    +1756        POST_INDEX = auto()
    +1757        UNSUPPORTED = auto()
     
    @@ -19988,8 +20088,8 @@ Otherwise, this resets the expression.
    -
    1766class Qualify(Expression):
    -1767    pass
    +            
    1772class Qualify(Expression):
    +1773    pass
     
    @@ -20052,8 +20152,8 @@ Otherwise, this resets the expression.
    -
    1771class Return(Expression):
    -1772    pass
    +            
    1777class Return(Expression):
    +1778    pass
     
    @@ -20116,8 +20216,8 @@ Otherwise, this resets the expression.
    -
    1775class Reference(Expression):
    -1776    arg_types = {"this": True, "expressions": False, "options": False}
    +            
    1781class Reference(Expression):
    +1782    arg_types = {"this": True, "expressions": False, "options": False}
     
    @@ -20180,8 +20280,8 @@ Otherwise, this resets the expression.
    -
    1779class Tuple(Expression):
    -1780    arg_types = {"expressions": False}
    +            
    1785class Tuple(Expression):
    +1786    arg_types = {"expressions": False}
     
    @@ -20244,103 +20344,103 @@ Otherwise, this resets the expression.
    -
    1783class Subqueryable(Unionable):
    -1784    def subquery(self, alias=None, copy=True) -> Subquery:
    -1785        """
    -1786        Convert this expression to an aliased expression that can be used as a Subquery.
    -1787
    -1788        Example:
    -1789            >>> subquery = Select().select("x").from_("tbl").subquery()
    -1790            >>> Select().select("x").from_(subquery).sql()
    -1791            'SELECT x FROM (SELECT x FROM tbl)'
    -1792
    -1793        Args:
    -1794            alias (str | Identifier): an optional alias for the subquery
    -1795            copy (bool): if `False`, modify this expression instance in-place.
    -1796
    -1797        Returns:
    -1798            Alias: the subquery
    -1799        """
    -1800        instance = _maybe_copy(self, copy)
    -1801        return Subquery(
    -1802            this=instance,
    -1803            alias=TableAlias(this=to_identifier(alias)) if alias else None,
    -1804        )
    -1805
    -1806    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1807        raise NotImplementedError
    -1808
    -1809    @property
    -1810    def ctes(self):
    -1811        with_ = self.args.get("with")
    -1812        if not with_:
    -1813            return []
    -1814        return with_.expressions
    -1815
    -1816    @property
    -1817    def selects(self):
    -1818        raise NotImplementedError("Subqueryable objects must implement `selects`")
    -1819
    -1820    @property
    -1821    def named_selects(self):
    -1822        raise NotImplementedError("Subqueryable objects must implement `named_selects`")
    -1823
    -1824    def with_(
    -1825        self,
    -1826        alias,
    -1827        as_,
    -1828        recursive=None,
    -1829        append=True,
    -1830        dialect=None,
    -1831        copy=True,
    -1832        **opts,
    -1833    ):
    -1834        """
    -1835        Append to or set the common table expressions.
    -1836
    -1837        Example:
    -1838            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    -1839            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    -1840
    -1841        Args:
    -1842            alias (str | Expression): the SQL code string to parse as the table name.
    -1843                If an `Expression` instance is passed, this is used as-is.
    -1844            as_ (str | Expression): the SQL code string to parse as the table expression.
    -1845                If an `Expression` instance is passed, it will be used as-is.
    -1846            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    -1847            append (bool): if `True`, add to any existing expressions.
    -1848                Otherwise, this resets the expressions.
    -1849            dialect (str): the dialect used to parse the input expression.
    -1850            copy (bool): if `False`, modify this expression instance in-place.
    -1851            opts (kwargs): other options to use to parse the input expressions.
    -1852
    -1853        Returns:
    -1854            Select: the modified expression.
    -1855        """
    -1856        alias_expression = maybe_parse(
    -1857            alias,
    -1858            dialect=dialect,
    -1859            into=TableAlias,
    -1860            **opts,
    -1861        )
    -1862        as_expression = maybe_parse(
    -1863            as_,
    +            
    1789class Subqueryable(Unionable):
    +1790    def subquery(self, alias=None, copy=True) -> Subquery:
    +1791        """
    +1792        Convert this expression to an aliased expression that can be used as a Subquery.
    +1793
    +1794        Example:
    +1795            >>> subquery = Select().select("x").from_("tbl").subquery()
    +1796            >>> Select().select("x").from_(subquery).sql()
    +1797            'SELECT x FROM (SELECT x FROM tbl)'
    +1798
    +1799        Args:
    +1800            alias (str | Identifier): an optional alias for the subquery
    +1801            copy (bool): if `False`, modify this expression instance in-place.
    +1802
    +1803        Returns:
    +1804            Alias: the subquery
    +1805        """
    +1806        instance = _maybe_copy(self, copy)
    +1807        return Subquery(
    +1808            this=instance,
    +1809            alias=TableAlias(this=to_identifier(alias)) if alias else None,
    +1810        )
    +1811
    +1812    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +1813        raise NotImplementedError
    +1814
    +1815    @property
    +1816    def ctes(self):
    +1817        with_ = self.args.get("with")
    +1818        if not with_:
    +1819            return []
    +1820        return with_.expressions
    +1821
    +1822    @property
    +1823    def selects(self):
    +1824        raise NotImplementedError("Subqueryable objects must implement `selects`")
    +1825
    +1826    @property
    +1827    def named_selects(self):
    +1828        raise NotImplementedError("Subqueryable objects must implement `named_selects`")
    +1829
    +1830    def with_(
    +1831        self,
    +1832        alias,
    +1833        as_,
    +1834        recursive=None,
    +1835        append=True,
    +1836        dialect=None,
    +1837        copy=True,
    +1838        **opts,
    +1839    ):
    +1840        """
    +1841        Append to or set the common table expressions.
    +1842
    +1843        Example:
    +1844            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    +1845            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    +1846
    +1847        Args:
    +1848            alias (str | Expression): the SQL code string to parse as the table name.
    +1849                If an `Expression` instance is passed, this is used as-is.
    +1850            as_ (str | Expression): the SQL code string to parse as the table expression.
    +1851                If an `Expression` instance is passed, it will be used as-is.
    +1852            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    +1853            append (bool): if `True`, add to any existing expressions.
    +1854                Otherwise, this resets the expressions.
    +1855            dialect (str): the dialect used to parse the input expression.
    +1856            copy (bool): if `False`, modify this expression instance in-place.
    +1857            opts (kwargs): other options to use to parse the input expressions.
    +1858
    +1859        Returns:
    +1860            Select: the modified expression.
    +1861        """
    +1862        alias_expression = maybe_parse(
    +1863            alias,
     1864            dialect=dialect,
    -1865            **opts,
    -1866        )
    -1867        cte = CTE(
    -1868            this=as_expression,
    -1869            alias=alias_expression,
    -1870        )
    -1871        return _apply_child_list_builder(
    -1872            cte,
    -1873            instance=self,
    -1874            arg="with",
    -1875            append=append,
    -1876            copy=copy,
    -1877            into=With,
    -1878            properties={"recursive": recursive or False},
    -1879        )
    +1865            into=TableAlias,
    +1866            **opts,
    +1867        )
    +1868        as_expression = maybe_parse(
    +1869            as_,
    +1870            dialect=dialect,
    +1871            **opts,
    +1872        )
    +1873        cte = CTE(
    +1874            this=as_expression,
    +1875            alias=alias_expression,
    +1876        )
    +1877        return _apply_child_list_builder(
    +1878            cte,
    +1879            instance=self,
    +1880            arg="with",
    +1881            append=append,
    +1882            copy=copy,
    +1883            into=With,
    +1884            properties={"recursive": recursive or False},
    +1885        )
     
    @@ -20357,27 +20457,27 @@ Otherwise, this resets the expression.
    -
    1784    def subquery(self, alias=None, copy=True) -> Subquery:
    -1785        """
    -1786        Convert this expression to an aliased expression that can be used as a Subquery.
    -1787
    -1788        Example:
    -1789            >>> subquery = Select().select("x").from_("tbl").subquery()
    -1790            >>> Select().select("x").from_(subquery).sql()
    -1791            'SELECT x FROM (SELECT x FROM tbl)'
    -1792
    -1793        Args:
    -1794            alias (str | Identifier): an optional alias for the subquery
    -1795            copy (bool): if `False`, modify this expression instance in-place.
    -1796
    -1797        Returns:
    -1798            Alias: the subquery
    -1799        """
    -1800        instance = _maybe_copy(self, copy)
    -1801        return Subquery(
    -1802            this=instance,
    -1803            alias=TableAlias(this=to_identifier(alias)) if alias else None,
    -1804        )
    +            
    1790    def subquery(self, alias=None, copy=True) -> Subquery:
    +1791        """
    +1792        Convert this expression to an aliased expression that can be used as a Subquery.
    +1793
    +1794        Example:
    +1795            >>> subquery = Select().select("x").from_("tbl").subquery()
    +1796            >>> Select().select("x").from_(subquery).sql()
    +1797            'SELECT x FROM (SELECT x FROM tbl)'
    +1798
    +1799        Args:
    +1800            alias (str | Identifier): an optional alias for the subquery
    +1801            copy (bool): if `False`, modify this expression instance in-place.
    +1802
    +1803        Returns:
    +1804            Alias: the subquery
    +1805        """
    +1806        instance = _maybe_copy(self, copy)
    +1807        return Subquery(
    +1808            this=instance,
    +1809            alias=TableAlias(this=to_identifier(alias)) if alias else None,
    +1810        )
     
    @@ -20421,8 +20521,8 @@ Otherwise, this resets the expression.
    -
    1806    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1807        raise NotImplementedError
    +            
    1812    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +1813        raise NotImplementedError
     
    @@ -20440,62 +20540,62 @@ Otherwise, this resets the expression.
    -
    1824    def with_(
    -1825        self,
    -1826        alias,
    -1827        as_,
    -1828        recursive=None,
    -1829        append=True,
    -1830        dialect=None,
    -1831        copy=True,
    -1832        **opts,
    -1833    ):
    -1834        """
    -1835        Append to or set the common table expressions.
    -1836
    -1837        Example:
    -1838            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    -1839            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    -1840
    -1841        Args:
    -1842            alias (str | Expression): the SQL code string to parse as the table name.
    -1843                If an `Expression` instance is passed, this is used as-is.
    -1844            as_ (str | Expression): the SQL code string to parse as the table expression.
    -1845                If an `Expression` instance is passed, it will be used as-is.
    -1846            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    -1847            append (bool): if `True`, add to any existing expressions.
    -1848                Otherwise, this resets the expressions.
    -1849            dialect (str): the dialect used to parse the input expression.
    -1850            copy (bool): if `False`, modify this expression instance in-place.
    -1851            opts (kwargs): other options to use to parse the input expressions.
    -1852
    -1853        Returns:
    -1854            Select: the modified expression.
    -1855        """
    -1856        alias_expression = maybe_parse(
    -1857            alias,
    -1858            dialect=dialect,
    -1859            into=TableAlias,
    -1860            **opts,
    -1861        )
    -1862        as_expression = maybe_parse(
    -1863            as_,
    +            
    1830    def with_(
    +1831        self,
    +1832        alias,
    +1833        as_,
    +1834        recursive=None,
    +1835        append=True,
    +1836        dialect=None,
    +1837        copy=True,
    +1838        **opts,
    +1839    ):
    +1840        """
    +1841        Append to or set the common table expressions.
    +1842
    +1843        Example:
    +1844            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    +1845            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    +1846
    +1847        Args:
    +1848            alias (str | Expression): the SQL code string to parse as the table name.
    +1849                If an `Expression` instance is passed, this is used as-is.
    +1850            as_ (str | Expression): the SQL code string to parse as the table expression.
    +1851                If an `Expression` instance is passed, it will be used as-is.
    +1852            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    +1853            append (bool): if `True`, add to any existing expressions.
    +1854                Otherwise, this resets the expressions.
    +1855            dialect (str): the dialect used to parse the input expression.
    +1856            copy (bool): if `False`, modify this expression instance in-place.
    +1857            opts (kwargs): other options to use to parse the input expressions.
    +1858
    +1859        Returns:
    +1860            Select: the modified expression.
    +1861        """
    +1862        alias_expression = maybe_parse(
    +1863            alias,
     1864            dialect=dialect,
    -1865            **opts,
    -1866        )
    -1867        cte = CTE(
    -1868            this=as_expression,
    -1869            alias=alias_expression,
    -1870        )
    -1871        return _apply_child_list_builder(
    -1872            cte,
    -1873            instance=self,
    -1874            arg="with",
    -1875            append=append,
    -1876            copy=copy,
    -1877            into=With,
    -1878            properties={"recursive": recursive or False},
    -1879        )
    +1865            into=TableAlias,
    +1866            **opts,
    +1867        )
    +1868        as_expression = maybe_parse(
    +1869            as_,
    +1870            dialect=dialect,
    +1871            **opts,
    +1872        )
    +1873        cte = CTE(
    +1874            this=as_expression,
    +1875            alias=alias_expression,
    +1876        )
    +1877        return _apply_child_list_builder(
    +1878            cte,
    +1879            instance=self,
    +1880            arg="with",
    +1881            append=append,
    +1882            copy=copy,
    +1883            into=With,
    +1884            properties={"recursive": recursive or False},
    +1885        )
     
    @@ -20598,26 +20698,26 @@ Otherwise, this resets the expressions.
    -
    1903class Table(Expression):
    -1904    arg_types = {
    -1905        "this": True,
    -1906        "alias": False,
    -1907        "db": False,
    -1908        "catalog": False,
    -1909        "laterals": False,
    -1910        "joins": False,
    -1911        "pivots": False,
    -1912        "hints": False,
    -1913        "system_time": False,
    -1914    }
    -1915
    -1916    @property
    -1917    def db(self) -> str:
    -1918        return self.text("db")
    -1919
    -1920    @property
    -1921    def catalog(self) -> str:
    -1922        return self.text("catalog")
    +            
    1909class Table(Expression):
    +1910    arg_types = {
    +1911        "this": True,
    +1912        "alias": False,
    +1913        "db": False,
    +1914        "catalog": False,
    +1915        "laterals": False,
    +1916        "joins": False,
    +1917        "pivots": False,
    +1918        "hints": False,
    +1919        "system_time": False,
    +1920    }
    +1921
    +1922    @property
    +1923    def db(self) -> str:
    +1924        return self.text("db")
    +1925
    +1926    @property
    +1927    def catalog(self) -> str:
    +1928        return self.text("catalog")
     
    @@ -20680,12 +20780,12 @@ Otherwise, this resets the expressions.
    -
    1926class SystemTime(Expression):
    -1927    arg_types = {
    -1928        "this": False,
    -1929        "expression": False,
    -1930        "kind": True,
    -1931    }
    +            
    1932class SystemTime(Expression):
    +1933    arg_types = {
    +1934        "this": False,
    +1935        "expression": False,
    +1936        "kind": True,
    +1937    }
     
    @@ -20748,94 +20848,94 @@ Otherwise, this resets the expressions.
    -
    1934class Union(Subqueryable):
    -1935    arg_types = {
    -1936        "with": False,
    -1937        "this": True,
    -1938        "expression": True,
    -1939        "distinct": False,
    -1940        **QUERY_MODIFIERS,
    -1941    }
    -1942
    -1943    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1944        """
    -1945        Set the LIMIT expression.
    -1946
    -1947        Example:
    -1948            >>> select("1").union(select("1")).limit(1).sql()
    -1949            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    -1950
    -1951        Args:
    -1952            expression (str | int | Expression): the SQL code string to parse.
    -1953                This can also be an integer.
    -1954                If a `Limit` instance is passed, this is used as-is.
    -1955                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -1956            dialect (str): the dialect used to parse the input expression.
    -1957            copy (bool): if `False`, modify this expression instance in-place.
    -1958            opts (kwargs): other options to use to parse the input expressions.
    -1959
    -1960        Returns:
    -1961            Select: The limited subqueryable.
    -1962        """
    -1963        return (
    -1964            select("*")
    -1965            .from_(self.subquery(alias="_l_0", copy=copy))
    -1966            .limit(expression, dialect=dialect, copy=False, **opts)
    -1967        )
    -1968
    -1969    def select(
    -1970        self,
    -1971        *expressions: ExpOrStr,
    -1972        append: bool = True,
    -1973        dialect: DialectType = None,
    -1974        copy: bool = True,
    -1975        **opts,
    -1976    ) -> Union:
    -1977        """Append to or set the SELECT of the union recursively.
    -1978
    -1979        Example:
    -1980            >>> from sqlglot import parse_one
    -1981            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    -1982            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    -1983
    -1984        Args:
    -1985            *expressions: the SQL code strings to parse.
    -1986                If an `Expression` instance is passed, it will be used as-is.
    -1987            append: if `True`, add to any existing expressions.
    -1988                Otherwise, this resets the expressions.
    -1989            dialect: the dialect used to parse the input expressions.
    -1990            copy: if `False`, modify this expression instance in-place.
    -1991            opts: other options to use to parse the input expressions.
    -1992
    -1993        Returns:
    -1994            Union: the modified expression.
    -1995        """
    -1996        this = self.copy() if copy else self
    -1997        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    -1998        this.expression.unnest().select(
    -1999            *expressions, append=append, dialect=dialect, copy=False, **opts
    -2000        )
    -2001        return this
    -2002
    -2003    @property
    -2004    def named_selects(self):
    -2005        return self.this.unnest().named_selects
    -2006
    -2007    @property
    -2008    def is_star(self) -> bool:
    -2009        return self.this.is_star or self.expression.is_star
    -2010
    -2011    @property
    -2012    def selects(self):
    -2013        return self.this.unnest().selects
    -2014
    -2015    @property
    -2016    def left(self):
    -2017        return self.this
    -2018
    -2019    @property
    -2020    def right(self):
    -2021        return self.expression
    +            
    1940class Union(Subqueryable):
    +1941    arg_types = {
    +1942        "with": False,
    +1943        "this": True,
    +1944        "expression": True,
    +1945        "distinct": False,
    +1946        **QUERY_MODIFIERS,
    +1947    }
    +1948
    +1949    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +1950        """
    +1951        Set the LIMIT expression.
    +1952
    +1953        Example:
    +1954            >>> select("1").union(select("1")).limit(1).sql()
    +1955            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    +1956
    +1957        Args:
    +1958            expression (str | int | Expression): the SQL code string to parse.
    +1959                This can also be an integer.
    +1960                If a `Limit` instance is passed, this is used as-is.
    +1961                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +1962            dialect (str): the dialect used to parse the input expression.
    +1963            copy (bool): if `False`, modify this expression instance in-place.
    +1964            opts (kwargs): other options to use to parse the input expressions.
    +1965
    +1966        Returns:
    +1967            Select: The limited subqueryable.
    +1968        """
    +1969        return (
    +1970            select("*")
    +1971            .from_(self.subquery(alias="_l_0", copy=copy))
    +1972            .limit(expression, dialect=dialect, copy=False, **opts)
    +1973        )
    +1974
    +1975    def select(
    +1976        self,
    +1977        *expressions: ExpOrStr,
    +1978        append: bool = True,
    +1979        dialect: DialectType = None,
    +1980        copy: bool = True,
    +1981        **opts,
    +1982    ) -> Union:
    +1983        """Append to or set the SELECT of the union recursively.
    +1984
    +1985        Example:
    +1986            >>> from sqlglot import parse_one
    +1987            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    +1988            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    +1989
    +1990        Args:
    +1991            *expressions: the SQL code strings to parse.
    +1992                If an `Expression` instance is passed, it will be used as-is.
    +1993            append: if `True`, add to any existing expressions.
    +1994                Otherwise, this resets the expressions.
    +1995            dialect: the dialect used to parse the input expressions.
    +1996            copy: if `False`, modify this expression instance in-place.
    +1997            opts: other options to use to parse the input expressions.
    +1998
    +1999        Returns:
    +2000            Union: the modified expression.
    +2001        """
    +2002        this = self.copy() if copy else self
    +2003        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    +2004        this.expression.unnest().select(
    +2005            *expressions, append=append, dialect=dialect, copy=False, **opts
    +2006        )
    +2007        return this
    +2008
    +2009    @property
    +2010    def named_selects(self):
    +2011        return self.this.unnest().named_selects
    +2012
    +2013    @property
    +2014    def is_star(self) -> bool:
    +2015        return self.this.is_star or self.expression.is_star
    +2016
    +2017    @property
    +2018    def selects(self):
    +2019        return self.this.unnest().selects
    +2020
    +2021    @property
    +2022    def left(self):
    +2023        return self.this
    +2024
    +2025    @property
    +2026    def right(self):
    +2027        return self.expression
     
    @@ -20852,31 +20952,31 @@ Otherwise, this resets the expressions.
    -
    1943    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1944        """
    -1945        Set the LIMIT expression.
    -1946
    -1947        Example:
    -1948            >>> select("1").union(select("1")).limit(1).sql()
    -1949            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    -1950
    -1951        Args:
    -1952            expression (str | int | Expression): the SQL code string to parse.
    -1953                This can also be an integer.
    -1954                If a `Limit` instance is passed, this is used as-is.
    -1955                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -1956            dialect (str): the dialect used to parse the input expression.
    -1957            copy (bool): if `False`, modify this expression instance in-place.
    -1958            opts (kwargs): other options to use to parse the input expressions.
    -1959
    -1960        Returns:
    -1961            Select: The limited subqueryable.
    -1962        """
    -1963        return (
    -1964            select("*")
    -1965            .from_(self.subquery(alias="_l_0", copy=copy))
    -1966            .limit(expression, dialect=dialect, copy=False, **opts)
    -1967        )
    +            
    1949    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +1950        """
    +1951        Set the LIMIT expression.
    +1952
    +1953        Example:
    +1954            >>> select("1").union(select("1")).limit(1).sql()
    +1955            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    +1956
    +1957        Args:
    +1958            expression (str | int | Expression): the SQL code string to parse.
    +1959                This can also be an integer.
    +1960                If a `Limit` instance is passed, this is used as-is.
    +1961                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +1962            dialect (str): the dialect used to parse the input expression.
    +1963            copy (bool): if `False`, modify this expression instance in-place.
    +1964            opts (kwargs): other options to use to parse the input expressions.
    +1965
    +1966        Returns:
    +1967            Select: The limited subqueryable.
    +1968        """
    +1969        return (
    +1970            select("*")
    +1971            .from_(self.subquery(alias="_l_0", copy=copy))
    +1972            .limit(expression, dialect=dialect, copy=False, **opts)
    +1973        )
     
    @@ -20924,39 +21024,39 @@ If another Expression instance is passed,
    -
    1969    def select(
    -1970        self,
    -1971        *expressions: ExpOrStr,
    -1972        append: bool = True,
    -1973        dialect: DialectType = None,
    -1974        copy: bool = True,
    -1975        **opts,
    -1976    ) -> Union:
    -1977        """Append to or set the SELECT of the union recursively.
    -1978
    -1979        Example:
    -1980            >>> from sqlglot import parse_one
    -1981            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    -1982            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    -1983
    -1984        Args:
    -1985            *expressions: the SQL code strings to parse.
    -1986                If an `Expression` instance is passed, it will be used as-is.
    -1987            append: if `True`, add to any existing expressions.
    -1988                Otherwise, this resets the expressions.
    -1989            dialect: the dialect used to parse the input expressions.
    -1990            copy: if `False`, modify this expression instance in-place.
    -1991            opts: other options to use to parse the input expressions.
    -1992
    -1993        Returns:
    -1994            Union: the modified expression.
    -1995        """
    -1996        this = self.copy() if copy else self
    -1997        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    -1998        this.expression.unnest().select(
    -1999            *expressions, append=append, dialect=dialect, copy=False, **opts
    -2000        )
    -2001        return this
    +            
    1975    def select(
    +1976        self,
    +1977        *expressions: ExpOrStr,
    +1978        append: bool = True,
    +1979        dialect: DialectType = None,
    +1980        copy: bool = True,
    +1981        **opts,
    +1982    ) -> Union:
    +1983        """Append to or set the SELECT of the union recursively.
    +1984
    +1985        Example:
    +1986            >>> from sqlglot import parse_one
    +1987            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    +1988            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    +1989
    +1990        Args:
    +1991            *expressions: the SQL code strings to parse.
    +1992                If an `Expression` instance is passed, it will be used as-is.
    +1993            append: if `True`, add to any existing expressions.
    +1994                Otherwise, this resets the expressions.
    +1995            dialect: the dialect used to parse the input expressions.
    +1996            copy: if `False`, modify this expression instance in-place.
    +1997            opts: other options to use to parse the input expressions.
    +1998
    +1999        Returns:
    +2000            Union: the modified expression.
    +2001        """
    +2002        this = self.copy() if copy else self
    +2003        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    +2004        this.expression.unnest().select(
    +2005            *expressions, append=append, dialect=dialect, copy=False, **opts
    +2006        )
    +2007        return this
     
    @@ -21074,8 +21174,8 @@ Otherwise, this resets the expressions.
    -
    2024class Except(Union):
    -2025    pass
    +            
    2030class Except(Union):
    +2031    pass
     
    @@ -21154,8 +21254,8 @@ Otherwise, this resets the expressions.
    -
    2028class Intersect(Union):
    -2029    pass
    +            
    2034class Intersect(Union):
    +2035    pass
     
    @@ -21234,13 +21334,13 @@ Otherwise, this resets the expressions.
    -
    2032class Unnest(UDTF):
    -2033    arg_types = {
    -2034        "expressions": True,
    -2035        "ordinality": False,
    -2036        "alias": False,
    -2037        "offset": False,
    -2038    }
    +            
    2038class Unnest(UDTF):
    +2039    arg_types = {
    +2040        "expressions": True,
    +2041        "ordinality": False,
    +2042        "alias": False,
    +2043        "offset": False,
    +2044    }
     
    @@ -21309,15 +21409,15 @@ Otherwise, this resets the expressions.
    -
    2041class Update(Expression):
    -2042    arg_types = {
    -2043        "with": False,
    -2044        "this": False,
    -2045        "expressions": True,
    -2046        "from": False,
    -2047        "where": False,
    -2048        "returning": False,
    -2049    }
    +            
    2047class Update(Expression):
    +2048    arg_types = {
    +2049        "with": False,
    +2050        "this": False,
    +2051        "expressions": True,
    +2052        "from": False,
    +2053        "where": False,
    +2054        "returning": False,
    +2055    }
     
    @@ -21380,12 +21480,12 @@ Otherwise, this resets the expressions.
    -
    2052class Values(UDTF):
    -2053    arg_types = {
    -2054        "expressions": True,
    -2055        "ordinality": False,
    -2056        "alias": False,
    -2057    }
    +            
    2058class Values(UDTF):
    +2059    arg_types = {
    +2060        "expressions": True,
    +2061        "ordinality": False,
    +2062        "alias": False,
    +2063    }
     
    @@ -21454,8 +21554,8 @@ Otherwise, this resets the expressions.
    -
    2060class Var(Expression):
    -2061    pass
    +            
    2066class Var(Expression):
    +2067    pass
     
    @@ -21518,8 +21618,8 @@ Otherwise, this resets the expressions.
    -
    2064class Schema(Expression):
    -2065    arg_types = {"this": False, "expressions": False}
    +            
    2070class Schema(Expression):
    +2071    arg_types = {"this": False, "expressions": False}
     
    @@ -21582,8 +21682,8 @@ Otherwise, this resets the expressions.
    -
    2070class Lock(Expression):
    -2071    arg_types = {"update": True}
    +            
    2076class Lock(Expression):
    +2077    arg_types = {"update": True}
     
    @@ -21646,591 +21746,591 @@ Otherwise, this resets the expressions.
    -
    2074class Select(Subqueryable):
    -2075    arg_types = {
    -2076        "with": False,
    -2077        "kind": False,
    -2078        "expressions": False,
    -2079        "hint": False,
    -2080        "distinct": False,
    -2081        "into": False,
    -2082        "from": False,
    -2083        **QUERY_MODIFIERS,
    -2084    }
    -2085
    -2086    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2087        """
    -2088        Set the FROM expression.
    -2089
    -2090        Example:
    -2091            >>> Select().from_("tbl").select("x").sql()
    -2092            'SELECT x FROM tbl'
    -2093
    -2094        Args:
    -2095            *expressions (str | Expression): the SQL code strings to parse.
    -2096                If a `From` instance is passed, this is used as-is.
    -2097                If another `Expression` instance is passed, it will be wrapped in a `From`.
    -2098            append (bool): if `True`, add to any existing expressions.
    -2099                Otherwise, this flattens all the `From` expression into a single expression.
    -2100            dialect (str): the dialect used to parse the input expression.
    -2101            copy (bool): if `False`, modify this expression instance in-place.
    -2102            opts (kwargs): other options to use to parse the input expressions.
    -2103
    -2104        Returns:
    -2105            Select: the modified expression.
    -2106        """
    -2107        return _apply_child_list_builder(
    -2108            *expressions,
    -2109            instance=self,
    -2110            arg="from",
    -2111            append=append,
    -2112            copy=copy,
    -2113            prefix="FROM",
    -2114            into=From,
    -2115            dialect=dialect,
    -2116            **opts,
    -2117        )
    -2118
    -2119    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2120        """
    -2121        Set the GROUP BY expression.
    -2122
    -2123        Example:
    -2124            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    -2125            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    -2126
    -2127        Args:
    -2128            *expressions (str | Expression): the SQL code strings to parse.
    -2129                If a `Group` instance is passed, this is used as-is.
    -2130                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    -2131                If nothing is passed in then a group by is not applied to the expression
    -2132            append (bool): if `True`, add to any existing expressions.
    -2133                Otherwise, this flattens all the `Group` expression into a single expression.
    -2134            dialect (str): the dialect used to parse the input expression.
    -2135            copy (bool): if `False`, modify this expression instance in-place.
    -2136            opts (kwargs): other options to use to parse the input expressions.
    -2137
    -2138        Returns:
    -2139            Select: the modified expression.
    -2140        """
    -2141        if not expressions:
    -2142            return self if not copy else self.copy()
    -2143        return _apply_child_list_builder(
    -2144            *expressions,
    -2145            instance=self,
    -2146            arg="group",
    -2147            append=append,
    -2148            copy=copy,
    -2149            prefix="GROUP BY",
    -2150            into=Group,
    -2151            dialect=dialect,
    -2152            **opts,
    -2153        )
    -2154
    -2155    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2156        """
    -2157        Set the ORDER BY expression.
    -2158
    -2159        Example:
    -2160            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    -2161            'SELECT x FROM tbl ORDER BY x DESC'
    -2162
    -2163        Args:
    -2164            *expressions (str | Expression): the SQL code strings to parse.
    -2165                If a `Group` instance is passed, this is used as-is.
    -2166                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    -2167            append (bool): if `True`, add to any existing expressions.
    -2168                Otherwise, this flattens all the `Order` expression into a single expression.
    -2169            dialect (str): the dialect used to parse the input expression.
    -2170            copy (bool): if `False`, modify this expression instance in-place.
    -2171            opts (kwargs): other options to use to parse the input expressions.
    -2172
    -2173        Returns:
    -2174            Select: the modified expression.
    -2175        """
    -2176        return _apply_child_list_builder(
    -2177            *expressions,
    -2178            instance=self,
    -2179            arg="order",
    -2180            append=append,
    -2181            copy=copy,
    -2182            prefix="ORDER BY",
    -2183            into=Order,
    -2184            dialect=dialect,
    -2185            **opts,
    -2186        )
    -2187
    -2188    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2189        """
    -2190        Set the SORT BY expression.
    -2191
    -2192        Example:
    -2193            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    -2194            'SELECT x FROM tbl SORT BY x DESC'
    -2195
    -2196        Args:
    -2197            *expressions (str | Expression): the SQL code strings to parse.
    -2198                If a `Group` instance is passed, this is used as-is.
    -2199                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    -2200            append (bool): if `True`, add to any existing expressions.
    -2201                Otherwise, this flattens all the `Order` expression into a single expression.
    -2202            dialect (str): the dialect used to parse the input expression.
    -2203            copy (bool): if `False`, modify this expression instance in-place.
    -2204            opts (kwargs): other options to use to parse the input expressions.
    -2205
    -2206        Returns:
    -2207            Select: the modified expression.
    -2208        """
    -2209        return _apply_child_list_builder(
    -2210            *expressions,
    -2211            instance=self,
    -2212            arg="sort",
    -2213            append=append,
    -2214            copy=copy,
    -2215            prefix="SORT BY",
    -2216            into=Sort,
    -2217            dialect=dialect,
    -2218            **opts,
    -2219        )
    -2220
    -2221    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2222        """
    -2223        Set the CLUSTER BY expression.
    -2224
    -2225        Example:
    -2226            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    -2227            'SELECT x FROM tbl CLUSTER BY x DESC'
    -2228
    -2229        Args:
    -2230            *expressions (str | Expression): the SQL code strings to parse.
    -2231                If a `Group` instance is passed, this is used as-is.
    -2232                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    -2233            append (bool): if `True`, add to any existing expressions.
    -2234                Otherwise, this flattens all the `Order` expression into a single expression.
    -2235            dialect (str): the dialect used to parse the input expression.
    -2236            copy (bool): if `False`, modify this expression instance in-place.
    -2237            opts (kwargs): other options to use to parse the input expressions.
    -2238
    -2239        Returns:
    -2240            Select: the modified expression.
    -2241        """
    -2242        return _apply_child_list_builder(
    -2243            *expressions,
    -2244            instance=self,
    -2245            arg="cluster",
    -2246            append=append,
    -2247            copy=copy,
    -2248            prefix="CLUSTER BY",
    -2249            into=Cluster,
    -2250            dialect=dialect,
    -2251            **opts,
    -2252        )
    -2253
    -2254    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2255        """
    -2256        Set the LIMIT expression.
    -2257
    -2258        Example:
    -2259            >>> Select().from_("tbl").select("x").limit(10).sql()
    -2260            'SELECT x FROM tbl LIMIT 10'
    -2261
    -2262        Args:
    -2263            expression (str | int | Expression): the SQL code string to parse.
    -2264                This can also be an integer.
    -2265                If a `Limit` instance is passed, this is used as-is.
    -2266                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -2267            dialect (str): the dialect used to parse the input expression.
    -2268            copy (bool): if `False`, modify this expression instance in-place.
    -2269            opts (kwargs): other options to use to parse the input expressions.
    -2270
    -2271        Returns:
    -2272            Select: the modified expression.
    -2273        """
    -2274        return _apply_builder(
    -2275            expression=expression,
    -2276            instance=self,
    -2277            arg="limit",
    -2278            into=Limit,
    -2279            prefix="LIMIT",
    -2280            dialect=dialect,
    -2281            copy=copy,
    -2282            **opts,
    -2283        )
    -2284
    -2285    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2286        """
    -2287        Set the OFFSET expression.
    -2288
    -2289        Example:
    -2290            >>> Select().from_("tbl").select("x").offset(10).sql()
    -2291            'SELECT x FROM tbl OFFSET 10'
    -2292
    -2293        Args:
    -2294            expression (str | int | Expression): the SQL code string to parse.
    -2295                This can also be an integer.
    -2296                If a `Offset` instance is passed, this is used as-is.
    -2297                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    -2298            dialect (str): the dialect used to parse the input expression.
    -2299            copy (bool): if `False`, modify this expression instance in-place.
    -2300            opts (kwargs): other options to use to parse the input expressions.
    -2301
    -2302        Returns:
    -2303            Select: the modified expression.
    -2304        """
    -2305        return _apply_builder(
    -2306            expression=expression,
    -2307            instance=self,
    -2308            arg="offset",
    -2309            into=Offset,
    -2310            prefix="OFFSET",
    -2311            dialect=dialect,
    -2312            copy=copy,
    -2313            **opts,
    -2314        )
    -2315
    -2316    def select(
    -2317        self,
    -2318        *expressions: ExpOrStr,
    -2319        append: bool = True,
    -2320        dialect: DialectType = None,
    -2321        copy: bool = True,
    -2322        **opts,
    -2323    ) -> Select:
    -2324        """
    -2325        Append to or set the SELECT expressions.
    -2326
    -2327        Example:
    -2328            >>> Select().select("x", "y").sql()
    -2329            'SELECT x, y'
    -2330
    -2331        Args:
    -2332            *expressions: the SQL code strings to parse.
    -2333                If an `Expression` instance is passed, it will be used as-is.
    -2334            append: if `True`, add to any existing expressions.
    -2335                Otherwise, this resets the expressions.
    -2336            dialect: the dialect used to parse the input expressions.
    -2337            copy: if `False`, modify this expression instance in-place.
    -2338            opts: other options to use to parse the input expressions.
    -2339
    -2340        Returns:
    -2341            Select: the modified expression.
    -2342        """
    -2343        return _apply_list_builder(
    -2344            *expressions,
    -2345            instance=self,
    -2346            arg="expressions",
    -2347            append=append,
    -2348            dialect=dialect,
    -2349            copy=copy,
    -2350            **opts,
    -2351        )
    -2352
    -2353    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2354        """
    -2355        Append to or set the LATERAL expressions.
    -2356
    -2357        Example:
    -2358            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    -2359            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    -2360
    -2361        Args:
    -2362            *expressions (str | Expression): the SQL code strings to parse.
    -2363                If an `Expression` instance is passed, it will be used as-is.
    -2364            append (bool): if `True`, add to any existing expressions.
    -2365                Otherwise, this resets the expressions.
    -2366            dialect (str): the dialect used to parse the input expressions.
    -2367            copy (bool): if `False`, modify this expression instance in-place.
    -2368            opts (kwargs): other options to use to parse the input expressions.
    -2369
    -2370        Returns:
    -2371            Select: the modified expression.
    -2372        """
    -2373        return _apply_list_builder(
    -2374            *expressions,
    -2375            instance=self,
    -2376            arg="laterals",
    -2377            append=append,
    -2378            into=Lateral,
    -2379            prefix="LATERAL VIEW",
    -2380            dialect=dialect,
    -2381            copy=copy,
    -2382            **opts,
    -2383        )
    -2384
    -2385    def join(
    -2386        self,
    -2387        expression,
    -2388        on=None,
    -2389        using=None,
    -2390        append=True,
    -2391        join_type=None,
    -2392        join_alias=None,
    -2393        dialect=None,
    -2394        copy=True,
    -2395        **opts,
    -2396    ) -> Select:
    -2397        """
    -2398        Append to or set the JOIN expressions.
    -2399
    -2400        Example:
    -2401            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    -2402            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    -2403
    -2404            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    -2405            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    -2406
    -2407            Use `join_type` to change the type of join:
    -2408
    -2409            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    -2410            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    -2411
    -2412        Args:
    -2413            expression (str | Expression): the SQL code string to parse.
    -2414                If an `Expression` instance is passed, it will be used as-is.
    -2415            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    -2416                If an `Expression` instance is passed, it will be used as-is.
    -2417            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    -2418                If an `Expression` instance is passed, it will be used as-is.
    -2419            append (bool): if `True`, add to any existing expressions.
    -2420                Otherwise, this resets the expressions.
    -2421            join_type (str): If set, alter the parsed join type
    -2422            dialect (str): the dialect used to parse the input expressions.
    -2423            copy (bool): if `False`, modify this expression instance in-place.
    -2424            opts (kwargs): other options to use to parse the input expressions.
    -2425
    -2426        Returns:
    -2427            Select: the modified expression.
    -2428        """
    -2429        parse_args = {"dialect": dialect, **opts}
    -2430
    -2431        try:
    -2432            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    -2433        except ParseError:
    -2434            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    -2435
    -2436        join = expression if isinstance(expression, Join) else Join(this=expression)
    -2437
    -2438        if isinstance(join.this, Select):
    -2439            join.this.replace(join.this.subquery())
    -2440
    -2441        if join_type:
    -2442            natural: t.Optional[Token]
    -2443            side: t.Optional[Token]
    -2444            kind: t.Optional[Token]
    -2445
    -2446            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    -2447
    -2448            if natural:
    -2449                join.set("natural", True)
    -2450            if side:
    -2451                join.set("side", side.text)
    -2452            if kind:
    -2453                join.set("kind", kind.text)
    -2454
    -2455        if on:
    -2456            on = and_(*ensure_collection(on), dialect=dialect, **opts)
    -2457            join.set("on", on)
    -2458
    -2459        if using:
    -2460            join = _apply_list_builder(
    -2461                *ensure_collection(using),
    -2462                instance=join,
    -2463                arg="using",
    -2464                append=append,
    -2465                copy=copy,
    -2466                **opts,
    -2467            )
    -2468
    -2469        if join_alias:
    -2470            join.set("this", alias_(join.this, join_alias, table=True))
    -2471        return _apply_list_builder(
    -2472            join,
    -2473            instance=self,
    -2474            arg="joins",
    -2475            append=append,
    -2476            copy=copy,
    -2477            **opts,
    -2478        )
    -2479
    -2480    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2481        """
    -2482        Append to or set the WHERE expressions.
    -2483
    -2484        Example:
    -2485            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    -2486            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    -2487
    -2488        Args:
    -2489            *expressions (str | Expression): the SQL code strings to parse.
    -2490                If an `Expression` instance is passed, it will be used as-is.
    -2491                Multiple expressions are combined with an AND operator.
    -2492            append (bool): if `True`, AND the new expressions to any existing expression.
    -2493                Otherwise, this resets the expression.
    -2494            dialect (str): the dialect used to parse the input expressions.
    -2495            copy (bool): if `False`, modify this expression instance in-place.
    -2496            opts (kwargs): other options to use to parse the input expressions.
    -2497
    -2498        Returns:
    -2499            Select: the modified expression.
    -2500        """
    -2501        return _apply_conjunction_builder(
    -2502            *expressions,
    -2503            instance=self,
    -2504            arg="where",
    -2505            append=append,
    -2506            into=Where,
    -2507            dialect=dialect,
    -2508            copy=copy,
    -2509            **opts,
    -2510        )
    -2511
    -2512    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2513        """
    -2514        Append to or set the HAVING expressions.
    -2515
    -2516        Example:
    -2517            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    -2518            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    -2519
    -2520        Args:
    -2521            *expressions (str | Expression): the SQL code strings to parse.
    -2522                If an `Expression` instance is passed, it will be used as-is.
    -2523                Multiple expressions are combined with an AND operator.
    -2524            append (bool): if `True`, AND the new expressions to any existing expression.
    -2525                Otherwise, this resets the expression.
    -2526            dialect (str): the dialect used to parse the input expressions.
    -2527            copy (bool): if `False`, modify this expression instance in-place.
    -2528            opts (kwargs): other options to use to parse the input expressions.
    -2529
    -2530        Returns:
    -2531            Select: the modified expression.
    -2532        """
    -2533        return _apply_conjunction_builder(
    -2534            *expressions,
    -2535            instance=self,
    -2536            arg="having",
    -2537            append=append,
    -2538            into=Having,
    -2539            dialect=dialect,
    -2540            copy=copy,
    -2541            **opts,
    -2542        )
    -2543
    -2544    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2545        return _apply_list_builder(
    -2546            *expressions,
    -2547            instance=self,
    -2548            arg="windows",
    -2549            append=append,
    -2550            into=Window,
    -2551            dialect=dialect,
    -2552            copy=copy,
    -2553            **opts,
    -2554        )
    -2555
    -2556    def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2557        return _apply_conjunction_builder(
    -2558            *expressions,
    -2559            instance=self,
    -2560            arg="qualify",
    -2561            append=append,
    -2562            into=Qualify,
    -2563            dialect=dialect,
    -2564            copy=copy,
    -2565            **opts,
    -2566        )
    -2567
    -2568    def distinct(self, distinct=True, copy=True) -> Select:
    -2569        """
    -2570        Set the OFFSET expression.
    -2571
    -2572        Example:
    -2573            >>> Select().from_("tbl").select("x").distinct().sql()
    -2574            'SELECT DISTINCT x FROM tbl'
    -2575
    -2576        Args:
    -2577            distinct (bool): whether the Select should be distinct
    -2578            copy (bool): if `False`, modify this expression instance in-place.
    -2579
    -2580        Returns:
    -2581            Select: the modified expression.
    -2582        """
    -2583        instance = _maybe_copy(self, copy)
    -2584        instance.set("distinct", Distinct() if distinct else None)
    -2585        return instance
    -2586
    -2587    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    -2588        """
    -2589        Convert this expression to a CREATE TABLE AS statement.
    -2590
    -2591        Example:
    -2592            >>> Select().select("*").from_("tbl").ctas("x").sql()
    -2593            'CREATE TABLE x AS SELECT * FROM tbl'
    -2594
    -2595        Args:
    -2596            table (str | Expression): the SQL code string to parse as the table name.
    -2597                If another `Expression` instance is passed, it will be used as-is.
    -2598            properties (dict): an optional mapping of table properties
    -2599            dialect (str): the dialect used to parse the input table.
    -2600            copy (bool): if `False`, modify this expression instance in-place.
    -2601            opts (kwargs): other options to use to parse the input table.
    -2602
    -2603        Returns:
    -2604            Create: the CREATE TABLE AS expression
    -2605        """
    -2606        instance = _maybe_copy(self, copy)
    -2607        table_expression = maybe_parse(
    -2608            table,
    -2609            into=Table,
    -2610            dialect=dialect,
    -2611            **opts,
    -2612        )
    -2613        properties_expression = None
    -2614        if properties:
    -2615            properties_expression = Properties.from_dict(properties)
    -2616
    -2617        return Create(
    -2618            this=table_expression,
    -2619            kind="table",
    -2620            expression=instance,
    -2621            properties=properties_expression,
    -2622        )
    -2623
    -2624    def lock(self, update: bool = True, copy: bool = True) -> Select:
    -2625        """
    -2626        Set the locking read mode for this expression.
    -2627
    -2628        Examples:
    -2629            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    -2630            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    -2631
    -2632            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    -2633            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    -2634
    -2635        Args:
    -2636            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    -2637            copy: if `False`, modify this expression instance in-place.
    -2638
    -2639        Returns:
    -2640            The modified expression.
    -2641        """
    -2642
    -2643        inst = _maybe_copy(self, copy)
    -2644        inst.set("lock", Lock(update=update))
    -2645
    -2646        return inst
    -2647
    -2648    @property
    -2649    def named_selects(self) -> t.List[str]:
    -2650        return [e.output_name for e in self.expressions if e.alias_or_name]
    +            
    2080class Select(Subqueryable):
    +2081    arg_types = {
    +2082        "with": False,
    +2083        "kind": False,
    +2084        "expressions": False,
    +2085        "hint": False,
    +2086        "distinct": False,
    +2087        "into": False,
    +2088        "from": False,
    +2089        **QUERY_MODIFIERS,
    +2090    }
    +2091
    +2092    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2093        """
    +2094        Set the FROM expression.
    +2095
    +2096        Example:
    +2097            >>> Select().from_("tbl").select("x").sql()
    +2098            'SELECT x FROM tbl'
    +2099
    +2100        Args:
    +2101            *expressions (str | Expression): the SQL code strings to parse.
    +2102                If a `From` instance is passed, this is used as-is.
    +2103                If another `Expression` instance is passed, it will be wrapped in a `From`.
    +2104            append (bool): if `True`, add to any existing expressions.
    +2105                Otherwise, this flattens all the `From` expression into a single expression.
    +2106            dialect (str): the dialect used to parse the input expression.
    +2107            copy (bool): if `False`, modify this expression instance in-place.
    +2108            opts (kwargs): other options to use to parse the input expressions.
    +2109
    +2110        Returns:
    +2111            Select: the modified expression.
    +2112        """
    +2113        return _apply_child_list_builder(
    +2114            *expressions,
    +2115            instance=self,
    +2116            arg="from",
    +2117            append=append,
    +2118            copy=copy,
    +2119            prefix="FROM",
    +2120            into=From,
    +2121            dialect=dialect,
    +2122            **opts,
    +2123        )
    +2124
    +2125    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2126        """
    +2127        Set the GROUP BY expression.
    +2128
    +2129        Example:
    +2130            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    +2131            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    +2132
    +2133        Args:
    +2134            *expressions (str | Expression): the SQL code strings to parse.
    +2135                If a `Group` instance is passed, this is used as-is.
    +2136                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    +2137                If nothing is passed in then a group by is not applied to the expression
    +2138            append (bool): if `True`, add to any existing expressions.
    +2139                Otherwise, this flattens all the `Group` expression into a single expression.
    +2140            dialect (str): the dialect used to parse the input expression.
    +2141            copy (bool): if `False`, modify this expression instance in-place.
    +2142            opts (kwargs): other options to use to parse the input expressions.
    +2143
    +2144        Returns:
    +2145            Select: the modified expression.
    +2146        """
    +2147        if not expressions:
    +2148            return self if not copy else self.copy()
    +2149        return _apply_child_list_builder(
    +2150            *expressions,
    +2151            instance=self,
    +2152            arg="group",
    +2153            append=append,
    +2154            copy=copy,
    +2155            prefix="GROUP BY",
    +2156            into=Group,
    +2157            dialect=dialect,
    +2158            **opts,
    +2159        )
    +2160
    +2161    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2162        """
    +2163        Set the ORDER BY expression.
    +2164
    +2165        Example:
    +2166            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    +2167            'SELECT x FROM tbl ORDER BY x DESC'
    +2168
    +2169        Args:
    +2170            *expressions (str | Expression): the SQL code strings to parse.
    +2171                If a `Group` instance is passed, this is used as-is.
    +2172                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    +2173            append (bool): if `True`, add to any existing expressions.
    +2174                Otherwise, this flattens all the `Order` expression into a single expression.
    +2175            dialect (str): the dialect used to parse the input expression.
    +2176            copy (bool): if `False`, modify this expression instance in-place.
    +2177            opts (kwargs): other options to use to parse the input expressions.
    +2178
    +2179        Returns:
    +2180            Select: the modified expression.
    +2181        """
    +2182        return _apply_child_list_builder(
    +2183            *expressions,
    +2184            instance=self,
    +2185            arg="order",
    +2186            append=append,
    +2187            copy=copy,
    +2188            prefix="ORDER BY",
    +2189            into=Order,
    +2190            dialect=dialect,
    +2191            **opts,
    +2192        )
    +2193
    +2194    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2195        """
    +2196        Set the SORT BY expression.
    +2197
    +2198        Example:
    +2199            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    +2200            'SELECT x FROM tbl SORT BY x DESC'
    +2201
    +2202        Args:
    +2203            *expressions (str | Expression): the SQL code strings to parse.
    +2204                If a `Group` instance is passed, this is used as-is.
    +2205                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    +2206            append (bool): if `True`, add to any existing expressions.
    +2207                Otherwise, this flattens all the `Order` expression into a single expression.
    +2208            dialect (str): the dialect used to parse the input expression.
    +2209            copy (bool): if `False`, modify this expression instance in-place.
    +2210            opts (kwargs): other options to use to parse the input expressions.
    +2211
    +2212        Returns:
    +2213            Select: the modified expression.
    +2214        """
    +2215        return _apply_child_list_builder(
    +2216            *expressions,
    +2217            instance=self,
    +2218            arg="sort",
    +2219            append=append,
    +2220            copy=copy,
    +2221            prefix="SORT BY",
    +2222            into=Sort,
    +2223            dialect=dialect,
    +2224            **opts,
    +2225        )
    +2226
    +2227    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2228        """
    +2229        Set the CLUSTER BY expression.
    +2230
    +2231        Example:
    +2232            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    +2233            'SELECT x FROM tbl CLUSTER BY x DESC'
    +2234
    +2235        Args:
    +2236            *expressions (str | Expression): the SQL code strings to parse.
    +2237                If a `Group` instance is passed, this is used as-is.
    +2238                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    +2239            append (bool): if `True`, add to any existing expressions.
    +2240                Otherwise, this flattens all the `Order` expression into a single expression.
    +2241            dialect (str): the dialect used to parse the input expression.
    +2242            copy (bool): if `False`, modify this expression instance in-place.
    +2243            opts (kwargs): other options to use to parse the input expressions.
    +2244
    +2245        Returns:
    +2246            Select: the modified expression.
    +2247        """
    +2248        return _apply_child_list_builder(
    +2249            *expressions,
    +2250            instance=self,
    +2251            arg="cluster",
    +2252            append=append,
    +2253            copy=copy,
    +2254            prefix="CLUSTER BY",
    +2255            into=Cluster,
    +2256            dialect=dialect,
    +2257            **opts,
    +2258        )
    +2259
    +2260    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2261        """
    +2262        Set the LIMIT expression.
    +2263
    +2264        Example:
    +2265            >>> Select().from_("tbl").select("x").limit(10).sql()
    +2266            'SELECT x FROM tbl LIMIT 10'
    +2267
    +2268        Args:
    +2269            expression (str | int | Expression): the SQL code string to parse.
    +2270                This can also be an integer.
    +2271                If a `Limit` instance is passed, this is used as-is.
    +2272                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +2273            dialect (str): the dialect used to parse the input expression.
    +2274            copy (bool): if `False`, modify this expression instance in-place.
    +2275            opts (kwargs): other options to use to parse the input expressions.
    +2276
    +2277        Returns:
    +2278            Select: the modified expression.
    +2279        """
    +2280        return _apply_builder(
    +2281            expression=expression,
    +2282            instance=self,
    +2283            arg="limit",
    +2284            into=Limit,
    +2285            prefix="LIMIT",
    +2286            dialect=dialect,
    +2287            copy=copy,
    +2288            **opts,
    +2289        )
    +2290
    +2291    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2292        """
    +2293        Set the OFFSET expression.
    +2294
    +2295        Example:
    +2296            >>> Select().from_("tbl").select("x").offset(10).sql()
    +2297            'SELECT x FROM tbl OFFSET 10'
    +2298
    +2299        Args:
    +2300            expression (str | int | Expression): the SQL code string to parse.
    +2301                This can also be an integer.
    +2302                If a `Offset` instance is passed, this is used as-is.
    +2303                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    +2304            dialect (str): the dialect used to parse the input expression.
    +2305            copy (bool): if `False`, modify this expression instance in-place.
    +2306            opts (kwargs): other options to use to parse the input expressions.
    +2307
    +2308        Returns:
    +2309            Select: the modified expression.
    +2310        """
    +2311        return _apply_builder(
    +2312            expression=expression,
    +2313            instance=self,
    +2314            arg="offset",
    +2315            into=Offset,
    +2316            prefix="OFFSET",
    +2317            dialect=dialect,
    +2318            copy=copy,
    +2319            **opts,
    +2320        )
    +2321
    +2322    def select(
    +2323        self,
    +2324        *expressions: ExpOrStr,
    +2325        append: bool = True,
    +2326        dialect: DialectType = None,
    +2327        copy: bool = True,
    +2328        **opts,
    +2329    ) -> Select:
    +2330        """
    +2331        Append to or set the SELECT expressions.
    +2332
    +2333        Example:
    +2334            >>> Select().select("x", "y").sql()
    +2335            'SELECT x, y'
    +2336
    +2337        Args:
    +2338            *expressions: the SQL code strings to parse.
    +2339                If an `Expression` instance is passed, it will be used as-is.
    +2340            append: if `True`, add to any existing expressions.
    +2341                Otherwise, this resets the expressions.
    +2342            dialect: the dialect used to parse the input expressions.
    +2343            copy: if `False`, modify this expression instance in-place.
    +2344            opts: other options to use to parse the input expressions.
    +2345
    +2346        Returns:
    +2347            Select: the modified expression.
    +2348        """
    +2349        return _apply_list_builder(
    +2350            *expressions,
    +2351            instance=self,
    +2352            arg="expressions",
    +2353            append=append,
    +2354            dialect=dialect,
    +2355            copy=copy,
    +2356            **opts,
    +2357        )
    +2358
    +2359    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2360        """
    +2361        Append to or set the LATERAL expressions.
    +2362
    +2363        Example:
    +2364            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    +2365            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    +2366
    +2367        Args:
    +2368            *expressions (str | Expression): the SQL code strings to parse.
    +2369                If an `Expression` instance is passed, it will be used as-is.
    +2370            append (bool): if `True`, add to any existing expressions.
    +2371                Otherwise, this resets the expressions.
    +2372            dialect (str): the dialect used to parse the input expressions.
    +2373            copy (bool): if `False`, modify this expression instance in-place.
    +2374            opts (kwargs): other options to use to parse the input expressions.
    +2375
    +2376        Returns:
    +2377            Select: the modified expression.
    +2378        """
    +2379        return _apply_list_builder(
    +2380            *expressions,
    +2381            instance=self,
    +2382            arg="laterals",
    +2383            append=append,
    +2384            into=Lateral,
    +2385            prefix="LATERAL VIEW",
    +2386            dialect=dialect,
    +2387            copy=copy,
    +2388            **opts,
    +2389        )
    +2390
    +2391    def join(
    +2392        self,
    +2393        expression,
    +2394        on=None,
    +2395        using=None,
    +2396        append=True,
    +2397        join_type=None,
    +2398        join_alias=None,
    +2399        dialect=None,
    +2400        copy=True,
    +2401        **opts,
    +2402    ) -> Select:
    +2403        """
    +2404        Append to or set the JOIN expressions.
    +2405
    +2406        Example:
    +2407            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    +2408            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    +2409
    +2410            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    +2411            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    +2412
    +2413            Use `join_type` to change the type of join:
    +2414
    +2415            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    +2416            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    +2417
    +2418        Args:
    +2419            expression (str | Expression): the SQL code string to parse.
    +2420                If an `Expression` instance is passed, it will be used as-is.
    +2421            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    +2422                If an `Expression` instance is passed, it will be used as-is.
    +2423            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    +2424                If an `Expression` instance is passed, it will be used as-is.
    +2425            append (bool): if `True`, add to any existing expressions.
    +2426                Otherwise, this resets the expressions.
    +2427            join_type (str): If set, alter the parsed join type
    +2428            dialect (str): the dialect used to parse the input expressions.
    +2429            copy (bool): if `False`, modify this expression instance in-place.
    +2430            opts (kwargs): other options to use to parse the input expressions.
    +2431
    +2432        Returns:
    +2433            Select: the modified expression.
    +2434        """
    +2435        parse_args = {"dialect": dialect, **opts}
    +2436
    +2437        try:
    +2438            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    +2439        except ParseError:
    +2440            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    +2441
    +2442        join = expression if isinstance(expression, Join) else Join(this=expression)
    +2443
    +2444        if isinstance(join.this, Select):
    +2445            join.this.replace(join.this.subquery())
    +2446
    +2447        if join_type:
    +2448            natural: t.Optional[Token]
    +2449            side: t.Optional[Token]
    +2450            kind: t.Optional[Token]
    +2451
    +2452            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    +2453
    +2454            if natural:
    +2455                join.set("natural", True)
    +2456            if side:
    +2457                join.set("side", side.text)
    +2458            if kind:
    +2459                join.set("kind", kind.text)
    +2460
    +2461        if on:
    +2462            on = and_(*ensure_collection(on), dialect=dialect, **opts)
    +2463            join.set("on", on)
    +2464
    +2465        if using:
    +2466            join = _apply_list_builder(
    +2467                *ensure_collection(using),
    +2468                instance=join,
    +2469                arg="using",
    +2470                append=append,
    +2471                copy=copy,
    +2472                **opts,
    +2473            )
    +2474
    +2475        if join_alias:
    +2476            join.set("this", alias_(join.this, join_alias, table=True))
    +2477        return _apply_list_builder(
    +2478            join,
    +2479            instance=self,
    +2480            arg="joins",
    +2481            append=append,
    +2482            copy=copy,
    +2483            **opts,
    +2484        )
    +2485
    +2486    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2487        """
    +2488        Append to or set the WHERE expressions.
    +2489
    +2490        Example:
    +2491            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    +2492            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    +2493
    +2494        Args:
    +2495            *expressions (str | Expression): the SQL code strings to parse.
    +2496                If an `Expression` instance is passed, it will be used as-is.
    +2497                Multiple expressions are combined with an AND operator.
    +2498            append (bool): if `True`, AND the new expressions to any existing expression.
    +2499                Otherwise, this resets the expression.
    +2500            dialect (str): the dialect used to parse the input expressions.
    +2501            copy (bool): if `False`, modify this expression instance in-place.
    +2502            opts (kwargs): other options to use to parse the input expressions.
    +2503
    +2504        Returns:
    +2505            Select: the modified expression.
    +2506        """
    +2507        return _apply_conjunction_builder(
    +2508            *expressions,
    +2509            instance=self,
    +2510            arg="where",
    +2511            append=append,
    +2512            into=Where,
    +2513            dialect=dialect,
    +2514            copy=copy,
    +2515            **opts,
    +2516        )
    +2517
    +2518    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2519        """
    +2520        Append to or set the HAVING expressions.
    +2521
    +2522        Example:
    +2523            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    +2524            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    +2525
    +2526        Args:
    +2527            *expressions (str | Expression): the SQL code strings to parse.
    +2528                If an `Expression` instance is passed, it will be used as-is.
    +2529                Multiple expressions are combined with an AND operator.
    +2530            append (bool): if `True`, AND the new expressions to any existing expression.
    +2531                Otherwise, this resets the expression.
    +2532            dialect (str): the dialect used to parse the input expressions.
    +2533            copy (bool): if `False`, modify this expression instance in-place.
    +2534            opts (kwargs): other options to use to parse the input expressions.
    +2535
    +2536        Returns:
    +2537            Select: the modified expression.
    +2538        """
    +2539        return _apply_conjunction_builder(
    +2540            *expressions,
    +2541            instance=self,
    +2542            arg="having",
    +2543            append=append,
    +2544            into=Having,
    +2545            dialect=dialect,
    +2546            copy=copy,
    +2547            **opts,
    +2548        )
    +2549
    +2550    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2551        return _apply_list_builder(
    +2552            *expressions,
    +2553            instance=self,
    +2554            arg="windows",
    +2555            append=append,
    +2556            into=Window,
    +2557            dialect=dialect,
    +2558            copy=copy,
    +2559            **opts,
    +2560        )
    +2561
    +2562    def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2563        return _apply_conjunction_builder(
    +2564            *expressions,
    +2565            instance=self,
    +2566            arg="qualify",
    +2567            append=append,
    +2568            into=Qualify,
    +2569            dialect=dialect,
    +2570            copy=copy,
    +2571            **opts,
    +2572        )
    +2573
    +2574    def distinct(self, distinct=True, copy=True) -> Select:
    +2575        """
    +2576        Set the OFFSET expression.
    +2577
    +2578        Example:
    +2579            >>> Select().from_("tbl").select("x").distinct().sql()
    +2580            'SELECT DISTINCT x FROM tbl'
    +2581
    +2582        Args:
    +2583            distinct (bool): whether the Select should be distinct
    +2584            copy (bool): if `False`, modify this expression instance in-place.
    +2585
    +2586        Returns:
    +2587            Select: the modified expression.
    +2588        """
    +2589        instance = _maybe_copy(self, copy)
    +2590        instance.set("distinct", Distinct() if distinct else None)
    +2591        return instance
    +2592
    +2593    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    +2594        """
    +2595        Convert this expression to a CREATE TABLE AS statement.
    +2596
    +2597        Example:
    +2598            >>> Select().select("*").from_("tbl").ctas("x").sql()
    +2599            'CREATE TABLE x AS SELECT * FROM tbl'
    +2600
    +2601        Args:
    +2602            table (str | Expression): the SQL code string to parse as the table name.
    +2603                If another `Expression` instance is passed, it will be used as-is.
    +2604            properties (dict): an optional mapping of table properties
    +2605            dialect (str): the dialect used to parse the input table.
    +2606            copy (bool): if `False`, modify this expression instance in-place.
    +2607            opts (kwargs): other options to use to parse the input table.
    +2608
    +2609        Returns:
    +2610            Create: the CREATE TABLE AS expression
    +2611        """
    +2612        instance = _maybe_copy(self, copy)
    +2613        table_expression = maybe_parse(
    +2614            table,
    +2615            into=Table,
    +2616            dialect=dialect,
    +2617            **opts,
    +2618        )
    +2619        properties_expression = None
    +2620        if properties:
    +2621            properties_expression = Properties.from_dict(properties)
    +2622
    +2623        return Create(
    +2624            this=table_expression,
    +2625            kind="table",
    +2626            expression=instance,
    +2627            properties=properties_expression,
    +2628        )
    +2629
    +2630    def lock(self, update: bool = True, copy: bool = True) -> Select:
    +2631        """
    +2632        Set the locking read mode for this expression.
    +2633
    +2634        Examples:
    +2635            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    +2636            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    +2637
    +2638            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    +2639            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    +2640
    +2641        Args:
    +2642            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    +2643            copy: if `False`, modify this expression instance in-place.
    +2644
    +2645        Returns:
    +2646            The modified expression.
    +2647        """
    +2648
    +2649        inst = _maybe_copy(self, copy)
    +2650        inst.set("lock", Lock(update=update))
     2651
    -2652    @property
    -2653    def is_star(self) -> bool:
    -2654        return any(expression.is_star for expression in self.expressions)
    -2655
    -2656    @property
    -2657    def selects(self) -> t.List[Expression]:
    -2658        return self.expressions
    +2652        return inst
    +2653
    +2654    @property
    +2655    def named_selects(self) -> t.List[str]:
    +2656        return [e.output_name for e in self.expressions if e.alias_or_name]
    +2657
    +2658    @property
    +2659    def is_star(self) -> bool:
    +2660        return any(expression.is_star for expression in self.expressions)
    +2661
    +2662    @property
    +2663    def selects(self) -> t.List[Expression]:
    +2664        return self.expressions
     
    @@ -22247,38 +22347,38 @@ Otherwise, this resets the expressions.
    -
    2086    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2087        """
    -2088        Set the FROM expression.
    -2089
    -2090        Example:
    -2091            >>> Select().from_("tbl").select("x").sql()
    -2092            'SELECT x FROM tbl'
    -2093
    -2094        Args:
    -2095            *expressions (str | Expression): the SQL code strings to parse.
    -2096                If a `From` instance is passed, this is used as-is.
    -2097                If another `Expression` instance is passed, it will be wrapped in a `From`.
    -2098            append (bool): if `True`, add to any existing expressions.
    -2099                Otherwise, this flattens all the `From` expression into a single expression.
    -2100            dialect (str): the dialect used to parse the input expression.
    -2101            copy (bool): if `False`, modify this expression instance in-place.
    -2102            opts (kwargs): other options to use to parse the input expressions.
    -2103
    -2104        Returns:
    -2105            Select: the modified expression.
    -2106        """
    -2107        return _apply_child_list_builder(
    -2108            *expressions,
    -2109            instance=self,
    -2110            arg="from",
    -2111            append=append,
    -2112            copy=copy,
    -2113            prefix="FROM",
    -2114            into=From,
    -2115            dialect=dialect,
    -2116            **opts,
    -2117        )
    +            
    2092    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2093        """
    +2094        Set the FROM expression.
    +2095
    +2096        Example:
    +2097            >>> Select().from_("tbl").select("x").sql()
    +2098            'SELECT x FROM tbl'
    +2099
    +2100        Args:
    +2101            *expressions (str | Expression): the SQL code strings to parse.
    +2102                If a `From` instance is passed, this is used as-is.
    +2103                If another `Expression` instance is passed, it will be wrapped in a `From`.
    +2104            append (bool): if `True`, add to any existing expressions.
    +2105                Otherwise, this flattens all the `From` expression into a single expression.
    +2106            dialect (str): the dialect used to parse the input expression.
    +2107            copy (bool): if `False`, modify this expression instance in-place.
    +2108            opts (kwargs): other options to use to parse the input expressions.
    +2109
    +2110        Returns:
    +2111            Select: the modified expression.
    +2112        """
    +2113        return _apply_child_list_builder(
    +2114            *expressions,
    +2115            instance=self,
    +2116            arg="from",
    +2117            append=append,
    +2118            copy=copy,
    +2119            prefix="FROM",
    +2120            into=From,
    +2121            dialect=dialect,
    +2122            **opts,
    +2123        )
     
    @@ -22327,41 +22427,41 @@ Otherwise, this flattens all the From expressio
    -
    2119    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2120        """
    -2121        Set the GROUP BY expression.
    -2122
    -2123        Example:
    -2124            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    -2125            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    -2126
    -2127        Args:
    -2128            *expressions (str | Expression): the SQL code strings to parse.
    -2129                If a `Group` instance is passed, this is used as-is.
    -2130                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    -2131                If nothing is passed in then a group by is not applied to the expression
    -2132            append (bool): if `True`, add to any existing expressions.
    -2133                Otherwise, this flattens all the `Group` expression into a single expression.
    -2134            dialect (str): the dialect used to parse the input expression.
    -2135            copy (bool): if `False`, modify this expression instance in-place.
    -2136            opts (kwargs): other options to use to parse the input expressions.
    -2137
    -2138        Returns:
    -2139            Select: the modified expression.
    -2140        """
    -2141        if not expressions:
    -2142            return self if not copy else self.copy()
    -2143        return _apply_child_list_builder(
    -2144            *expressions,
    -2145            instance=self,
    -2146            arg="group",
    -2147            append=append,
    -2148            copy=copy,
    -2149            prefix="GROUP BY",
    -2150            into=Group,
    -2151            dialect=dialect,
    -2152            **opts,
    -2153        )
    +            
    2125    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2126        """
    +2127        Set the GROUP BY expression.
    +2128
    +2129        Example:
    +2130            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    +2131            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    +2132
    +2133        Args:
    +2134            *expressions (str | Expression): the SQL code strings to parse.
    +2135                If a `Group` instance is passed, this is used as-is.
    +2136                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    +2137                If nothing is passed in then a group by is not applied to the expression
    +2138            append (bool): if `True`, add to any existing expressions.
    +2139                Otherwise, this flattens all the `Group` expression into a single expression.
    +2140            dialect (str): the dialect used to parse the input expression.
    +2141            copy (bool): if `False`, modify this expression instance in-place.
    +2142            opts (kwargs): other options to use to parse the input expressions.
    +2143
    +2144        Returns:
    +2145            Select: the modified expression.
    +2146        """
    +2147        if not expressions:
    +2148            return self if not copy else self.copy()
    +2149        return _apply_child_list_builder(
    +2150            *expressions,
    +2151            instance=self,
    +2152            arg="group",
    +2153            append=append,
    +2154            copy=copy,
    +2155            prefix="GROUP BY",
    +2156            into=Group,
    +2157            dialect=dialect,
    +2158            **opts,
    +2159        )
     
    @@ -22411,38 +22511,38 @@ Otherwise, this flattens all the Group express
    -
    2155    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2156        """
    -2157        Set the ORDER BY expression.
    -2158
    -2159        Example:
    -2160            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    -2161            'SELECT x FROM tbl ORDER BY x DESC'
    -2162
    -2163        Args:
    -2164            *expressions (str | Expression): the SQL code strings to parse.
    -2165                If a `Group` instance is passed, this is used as-is.
    -2166                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    -2167            append (bool): if `True`, add to any existing expressions.
    -2168                Otherwise, this flattens all the `Order` expression into a single expression.
    -2169            dialect (str): the dialect used to parse the input expression.
    -2170            copy (bool): if `False`, modify this expression instance in-place.
    -2171            opts (kwargs): other options to use to parse the input expressions.
    -2172
    -2173        Returns:
    -2174            Select: the modified expression.
    -2175        """
    -2176        return _apply_child_list_builder(
    -2177            *expressions,
    -2178            instance=self,
    -2179            arg="order",
    -2180            append=append,
    -2181            copy=copy,
    -2182            prefix="ORDER BY",
    -2183            into=Order,
    -2184            dialect=dialect,
    -2185            **opts,
    -2186        )
    +            
    2161    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2162        """
    +2163        Set the ORDER BY expression.
    +2164
    +2165        Example:
    +2166            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    +2167            'SELECT x FROM tbl ORDER BY x DESC'
    +2168
    +2169        Args:
    +2170            *expressions (str | Expression): the SQL code strings to parse.
    +2171                If a `Group` instance is passed, this is used as-is.
    +2172                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    +2173            append (bool): if `True`, add to any existing expressions.
    +2174                Otherwise, this flattens all the `Order` expression into a single expression.
    +2175            dialect (str): the dialect used to parse the input expression.
    +2176            copy (bool): if `False`, modify this expression instance in-place.
    +2177            opts (kwargs): other options to use to parse the input expressions.
    +2178
    +2179        Returns:
    +2180            Select: the modified expression.
    +2181        """
    +2182        return _apply_child_list_builder(
    +2183            *expressions,
    +2184            instance=self,
    +2185            arg="order",
    +2186            append=append,
    +2187            copy=copy,
    +2188            prefix="ORDER BY",
    +2189            into=Order,
    +2190            dialect=dialect,
    +2191            **opts,
    +2192        )
     
    @@ -22491,38 +22591,38 @@ Otherwise, this flattens all the Order express
    -
    2188    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2189        """
    -2190        Set the SORT BY expression.
    -2191
    -2192        Example:
    -2193            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    -2194            'SELECT x FROM tbl SORT BY x DESC'
    -2195
    -2196        Args:
    -2197            *expressions (str | Expression): the SQL code strings to parse.
    -2198                If a `Group` instance is passed, this is used as-is.
    -2199                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    -2200            append (bool): if `True`, add to any existing expressions.
    -2201                Otherwise, this flattens all the `Order` expression into a single expression.
    -2202            dialect (str): the dialect used to parse the input expression.
    -2203            copy (bool): if `False`, modify this expression instance in-place.
    -2204            opts (kwargs): other options to use to parse the input expressions.
    -2205
    -2206        Returns:
    -2207            Select: the modified expression.
    -2208        """
    -2209        return _apply_child_list_builder(
    -2210            *expressions,
    -2211            instance=self,
    -2212            arg="sort",
    -2213            append=append,
    -2214            copy=copy,
    -2215            prefix="SORT BY",
    -2216            into=Sort,
    -2217            dialect=dialect,
    -2218            **opts,
    -2219        )
    +            
    2194    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2195        """
    +2196        Set the SORT BY expression.
    +2197
    +2198        Example:
    +2199            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    +2200            'SELECT x FROM tbl SORT BY x DESC'
    +2201
    +2202        Args:
    +2203            *expressions (str | Expression): the SQL code strings to parse.
    +2204                If a `Group` instance is passed, this is used as-is.
    +2205                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    +2206            append (bool): if `True`, add to any existing expressions.
    +2207                Otherwise, this flattens all the `Order` expression into a single expression.
    +2208            dialect (str): the dialect used to parse the input expression.
    +2209            copy (bool): if `False`, modify this expression instance in-place.
    +2210            opts (kwargs): other options to use to parse the input expressions.
    +2211
    +2212        Returns:
    +2213            Select: the modified expression.
    +2214        """
    +2215        return _apply_child_list_builder(
    +2216            *expressions,
    +2217            instance=self,
    +2218            arg="sort",
    +2219            append=append,
    +2220            copy=copy,
    +2221            prefix="SORT BY",
    +2222            into=Sort,
    +2223            dialect=dialect,
    +2224            **opts,
    +2225        )
     
    @@ -22571,38 +22671,38 @@ Otherwise, this flattens all the Order express
    -
    2221    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2222        """
    -2223        Set the CLUSTER BY expression.
    -2224
    -2225        Example:
    -2226            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    -2227            'SELECT x FROM tbl CLUSTER BY x DESC'
    -2228
    -2229        Args:
    -2230            *expressions (str | Expression): the SQL code strings to parse.
    -2231                If a `Group` instance is passed, this is used as-is.
    -2232                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    -2233            append (bool): if `True`, add to any existing expressions.
    -2234                Otherwise, this flattens all the `Order` expression into a single expression.
    -2235            dialect (str): the dialect used to parse the input expression.
    -2236            copy (bool): if `False`, modify this expression instance in-place.
    -2237            opts (kwargs): other options to use to parse the input expressions.
    -2238
    -2239        Returns:
    -2240            Select: the modified expression.
    -2241        """
    -2242        return _apply_child_list_builder(
    -2243            *expressions,
    -2244            instance=self,
    -2245            arg="cluster",
    -2246            append=append,
    -2247            copy=copy,
    -2248            prefix="CLUSTER BY",
    -2249            into=Cluster,
    -2250            dialect=dialect,
    -2251            **opts,
    -2252        )
    +            
    2227    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2228        """
    +2229        Set the CLUSTER BY expression.
    +2230
    +2231        Example:
    +2232            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    +2233            'SELECT x FROM tbl CLUSTER BY x DESC'
    +2234
    +2235        Args:
    +2236            *expressions (str | Expression): the SQL code strings to parse.
    +2237                If a `Group` instance is passed, this is used as-is.
    +2238                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    +2239            append (bool): if `True`, add to any existing expressions.
    +2240                Otherwise, this flattens all the `Order` expression into a single expression.
    +2241            dialect (str): the dialect used to parse the input expression.
    +2242            copy (bool): if `False`, modify this expression instance in-place.
    +2243            opts (kwargs): other options to use to parse the input expressions.
    +2244
    +2245        Returns:
    +2246            Select: the modified expression.
    +2247        """
    +2248        return _apply_child_list_builder(
    +2249            *expressions,
    +2250            instance=self,
    +2251            arg="cluster",
    +2252            append=append,
    +2253            copy=copy,
    +2254            prefix="CLUSTER BY",
    +2255            into=Cluster,
    +2256            dialect=dialect,
    +2257            **opts,
    +2258        )
     
    @@ -22651,36 +22751,36 @@ Otherwise, this flattens all the Order express
    -
    2254    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2255        """
    -2256        Set the LIMIT expression.
    -2257
    -2258        Example:
    -2259            >>> Select().from_("tbl").select("x").limit(10).sql()
    -2260            'SELECT x FROM tbl LIMIT 10'
    -2261
    -2262        Args:
    -2263            expression (str | int | Expression): the SQL code string to parse.
    -2264                This can also be an integer.
    -2265                If a `Limit` instance is passed, this is used as-is.
    -2266                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -2267            dialect (str): the dialect used to parse the input expression.
    -2268            copy (bool): if `False`, modify this expression instance in-place.
    -2269            opts (kwargs): other options to use to parse the input expressions.
    -2270
    -2271        Returns:
    -2272            Select: the modified expression.
    -2273        """
    -2274        return _apply_builder(
    -2275            expression=expression,
    -2276            instance=self,
    -2277            arg="limit",
    -2278            into=Limit,
    -2279            prefix="LIMIT",
    -2280            dialect=dialect,
    -2281            copy=copy,
    -2282            **opts,
    -2283        )
    +            
    2260    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2261        """
    +2262        Set the LIMIT expression.
    +2263
    +2264        Example:
    +2265            >>> Select().from_("tbl").select("x").limit(10).sql()
    +2266            'SELECT x FROM tbl LIMIT 10'
    +2267
    +2268        Args:
    +2269            expression (str | int | Expression): the SQL code string to parse.
    +2270                This can also be an integer.
    +2271                If a `Limit` instance is passed, this is used as-is.
    +2272                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +2273            dialect (str): the dialect used to parse the input expression.
    +2274            copy (bool): if `False`, modify this expression instance in-place.
    +2275            opts (kwargs): other options to use to parse the input expressions.
    +2276
    +2277        Returns:
    +2278            Select: the modified expression.
    +2279        """
    +2280        return _apply_builder(
    +2281            expression=expression,
    +2282            instance=self,
    +2283            arg="limit",
    +2284            into=Limit,
    +2285            prefix="LIMIT",
    +2286            dialect=dialect,
    +2287            copy=copy,
    +2288            **opts,
    +2289        )
     
    @@ -22728,36 +22828,36 @@ If another Expression instance is passed,
    -
    2285    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2286        """
    -2287        Set the OFFSET expression.
    -2288
    -2289        Example:
    -2290            >>> Select().from_("tbl").select("x").offset(10).sql()
    -2291            'SELECT x FROM tbl OFFSET 10'
    -2292
    -2293        Args:
    -2294            expression (str | int | Expression): the SQL code string to parse.
    -2295                This can also be an integer.
    -2296                If a `Offset` instance is passed, this is used as-is.
    -2297                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    -2298            dialect (str): the dialect used to parse the input expression.
    -2299            copy (bool): if `False`, modify this expression instance in-place.
    -2300            opts (kwargs): other options to use to parse the input expressions.
    -2301
    -2302        Returns:
    -2303            Select: the modified expression.
    -2304        """
    -2305        return _apply_builder(
    -2306            expression=expression,
    -2307            instance=self,
    -2308            arg="offset",
    -2309            into=Offset,
    -2310            prefix="OFFSET",
    -2311            dialect=dialect,
    -2312            copy=copy,
    -2313            **opts,
    -2314        )
    +            
    2291    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2292        """
    +2293        Set the OFFSET expression.
    +2294
    +2295        Example:
    +2296            >>> Select().from_("tbl").select("x").offset(10).sql()
    +2297            'SELECT x FROM tbl OFFSET 10'
    +2298
    +2299        Args:
    +2300            expression (str | int | Expression): the SQL code string to parse.
    +2301                This can also be an integer.
    +2302                If a `Offset` instance is passed, this is used as-is.
    +2303                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    +2304            dialect (str): the dialect used to parse the input expression.
    +2305            copy (bool): if `False`, modify this expression instance in-place.
    +2306            opts (kwargs): other options to use to parse the input expressions.
    +2307
    +2308        Returns:
    +2309            Select: the modified expression.
    +2310        """
    +2311        return _apply_builder(
    +2312            expression=expression,
    +2313            instance=self,
    +2314            arg="offset",
    +2315            into=Offset,
    +2316            prefix="OFFSET",
    +2317            dialect=dialect,
    +2318            copy=copy,
    +2319            **opts,
    +2320        )
     
    @@ -22805,42 +22905,42 @@ If another Expression instance is passed,
    -
    2316    def select(
    -2317        self,
    -2318        *expressions: ExpOrStr,
    -2319        append: bool = True,
    -2320        dialect: DialectType = None,
    -2321        copy: bool = True,
    -2322        **opts,
    -2323    ) -> Select:
    -2324        """
    -2325        Append to or set the SELECT expressions.
    -2326
    -2327        Example:
    -2328            >>> Select().select("x", "y").sql()
    -2329            'SELECT x, y'
    -2330
    -2331        Args:
    -2332            *expressions: the SQL code strings to parse.
    -2333                If an `Expression` instance is passed, it will be used as-is.
    -2334            append: if `True`, add to any existing expressions.
    -2335                Otherwise, this resets the expressions.
    -2336            dialect: the dialect used to parse the input expressions.
    -2337            copy: if `False`, modify this expression instance in-place.
    -2338            opts: other options to use to parse the input expressions.
    -2339
    -2340        Returns:
    -2341            Select: the modified expression.
    -2342        """
    -2343        return _apply_list_builder(
    -2344            *expressions,
    -2345            instance=self,
    -2346            arg="expressions",
    -2347            append=append,
    -2348            dialect=dialect,
    -2349            copy=copy,
    -2350            **opts,
    -2351        )
    +            
    2322    def select(
    +2323        self,
    +2324        *expressions: ExpOrStr,
    +2325        append: bool = True,
    +2326        dialect: DialectType = None,
    +2327        copy: bool = True,
    +2328        **opts,
    +2329    ) -> Select:
    +2330        """
    +2331        Append to or set the SELECT expressions.
    +2332
    +2333        Example:
    +2334            >>> Select().select("x", "y").sql()
    +2335            'SELECT x, y'
    +2336
    +2337        Args:
    +2338            *expressions: the SQL code strings to parse.
    +2339                If an `Expression` instance is passed, it will be used as-is.
    +2340            append: if `True`, add to any existing expressions.
    +2341                Otherwise, this resets the expressions.
    +2342            dialect: the dialect used to parse the input expressions.
    +2343            copy: if `False`, modify this expression instance in-place.
    +2344            opts: other options to use to parse the input expressions.
    +2345
    +2346        Returns:
    +2347            Select: the modified expression.
    +2348        """
    +2349        return _apply_list_builder(
    +2350            *expressions,
    +2351            instance=self,
    +2352            arg="expressions",
    +2353            append=append,
    +2354            dialect=dialect,
    +2355            copy=copy,
    +2356            **opts,
    +2357        )
     
    @@ -22888,37 +22988,37 @@ Otherwise, this resets the expressions.
    -
    2353    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2354        """
    -2355        Append to or set the LATERAL expressions.
    -2356
    -2357        Example:
    -2358            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    -2359            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    -2360
    -2361        Args:
    -2362            *expressions (str | Expression): the SQL code strings to parse.
    -2363                If an `Expression` instance is passed, it will be used as-is.
    -2364            append (bool): if `True`, add to any existing expressions.
    -2365                Otherwise, this resets the expressions.
    -2366            dialect (str): the dialect used to parse the input expressions.
    -2367            copy (bool): if `False`, modify this expression instance in-place.
    -2368            opts (kwargs): other options to use to parse the input expressions.
    -2369
    -2370        Returns:
    -2371            Select: the modified expression.
    -2372        """
    -2373        return _apply_list_builder(
    -2374            *expressions,
    -2375            instance=self,
    -2376            arg="laterals",
    -2377            append=append,
    -2378            into=Lateral,
    -2379            prefix="LATERAL VIEW",
    -2380            dialect=dialect,
    -2381            copy=copy,
    -2382            **opts,
    -2383        )
    +            
    2359    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2360        """
    +2361        Append to or set the LATERAL expressions.
    +2362
    +2363        Example:
    +2364            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    +2365            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    +2366
    +2367        Args:
    +2368            *expressions (str | Expression): the SQL code strings to parse.
    +2369                If an `Expression` instance is passed, it will be used as-is.
    +2370            append (bool): if `True`, add to any existing expressions.
    +2371                Otherwise, this resets the expressions.
    +2372            dialect (str): the dialect used to parse the input expressions.
    +2373            copy (bool): if `False`, modify this expression instance in-place.
    +2374            opts (kwargs): other options to use to parse the input expressions.
    +2375
    +2376        Returns:
    +2377            Select: the modified expression.
    +2378        """
    +2379        return _apply_list_builder(
    +2380            *expressions,
    +2381            instance=self,
    +2382            arg="laterals",
    +2383            append=append,
    +2384            into=Lateral,
    +2385            prefix="LATERAL VIEW",
    +2386            dialect=dialect,
    +2387            copy=copy,
    +2388            **opts,
    +2389        )
     
    @@ -22966,100 +23066,100 @@ Otherwise, this resets the expressions.
    -
    2385    def join(
    -2386        self,
    -2387        expression,
    -2388        on=None,
    -2389        using=None,
    -2390        append=True,
    -2391        join_type=None,
    -2392        join_alias=None,
    -2393        dialect=None,
    -2394        copy=True,
    -2395        **opts,
    -2396    ) -> Select:
    -2397        """
    -2398        Append to or set the JOIN expressions.
    -2399
    -2400        Example:
    -2401            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    -2402            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    -2403
    -2404            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    -2405            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    -2406
    -2407            Use `join_type` to change the type of join:
    -2408
    -2409            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    -2410            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    -2411
    -2412        Args:
    -2413            expression (str | Expression): the SQL code string to parse.
    -2414                If an `Expression` instance is passed, it will be used as-is.
    -2415            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    -2416                If an `Expression` instance is passed, it will be used as-is.
    -2417            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    -2418                If an `Expression` instance is passed, it will be used as-is.
    -2419            append (bool): if `True`, add to any existing expressions.
    -2420                Otherwise, this resets the expressions.
    -2421            join_type (str): If set, alter the parsed join type
    -2422            dialect (str): the dialect used to parse the input expressions.
    -2423            copy (bool): if `False`, modify this expression instance in-place.
    -2424            opts (kwargs): other options to use to parse the input expressions.
    -2425
    -2426        Returns:
    -2427            Select: the modified expression.
    -2428        """
    -2429        parse_args = {"dialect": dialect, **opts}
    -2430
    -2431        try:
    -2432            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    -2433        except ParseError:
    -2434            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    -2435
    -2436        join = expression if isinstance(expression, Join) else Join(this=expression)
    -2437
    -2438        if isinstance(join.this, Select):
    -2439            join.this.replace(join.this.subquery())
    -2440
    -2441        if join_type:
    -2442            natural: t.Optional[Token]
    -2443            side: t.Optional[Token]
    -2444            kind: t.Optional[Token]
    -2445
    -2446            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    -2447
    -2448            if natural:
    -2449                join.set("natural", True)
    -2450            if side:
    -2451                join.set("side", side.text)
    -2452            if kind:
    -2453                join.set("kind", kind.text)
    -2454
    -2455        if on:
    -2456            on = and_(*ensure_collection(on), dialect=dialect, **opts)
    -2457            join.set("on", on)
    -2458
    -2459        if using:
    -2460            join = _apply_list_builder(
    -2461                *ensure_collection(using),
    -2462                instance=join,
    -2463                arg="using",
    -2464                append=append,
    -2465                copy=copy,
    -2466                **opts,
    -2467            )
    -2468
    -2469        if join_alias:
    -2470            join.set("this", alias_(join.this, join_alias, table=True))
    -2471        return _apply_list_builder(
    -2472            join,
    -2473            instance=self,
    -2474            arg="joins",
    -2475            append=append,
    -2476            copy=copy,
    -2477            **opts,
    -2478        )
    +            
    2391    def join(
    +2392        self,
    +2393        expression,
    +2394        on=None,
    +2395        using=None,
    +2396        append=True,
    +2397        join_type=None,
    +2398        join_alias=None,
    +2399        dialect=None,
    +2400        copy=True,
    +2401        **opts,
    +2402    ) -> Select:
    +2403        """
    +2404        Append to or set the JOIN expressions.
    +2405
    +2406        Example:
    +2407            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    +2408            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    +2409
    +2410            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    +2411            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    +2412
    +2413            Use `join_type` to change the type of join:
    +2414
    +2415            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    +2416            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    +2417
    +2418        Args:
    +2419            expression (str | Expression): the SQL code string to parse.
    +2420                If an `Expression` instance is passed, it will be used as-is.
    +2421            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    +2422                If an `Expression` instance is passed, it will be used as-is.
    +2423            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    +2424                If an `Expression` instance is passed, it will be used as-is.
    +2425            append (bool): if `True`, add to any existing expressions.
    +2426                Otherwise, this resets the expressions.
    +2427            join_type (str): If set, alter the parsed join type
    +2428            dialect (str): the dialect used to parse the input expressions.
    +2429            copy (bool): if `False`, modify this expression instance in-place.
    +2430            opts (kwargs): other options to use to parse the input expressions.
    +2431
    +2432        Returns:
    +2433            Select: the modified expression.
    +2434        """
    +2435        parse_args = {"dialect": dialect, **opts}
    +2436
    +2437        try:
    +2438            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    +2439        except ParseError:
    +2440            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    +2441
    +2442        join = expression if isinstance(expression, Join) else Join(this=expression)
    +2443
    +2444        if isinstance(join.this, Select):
    +2445            join.this.replace(join.this.subquery())
    +2446
    +2447        if join_type:
    +2448            natural: t.Optional[Token]
    +2449            side: t.Optional[Token]
    +2450            kind: t.Optional[Token]
    +2451
    +2452            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    +2453
    +2454            if natural:
    +2455                join.set("natural", True)
    +2456            if side:
    +2457                join.set("side", side.text)
    +2458            if kind:
    +2459                join.set("kind", kind.text)
    +2460
    +2461        if on:
    +2462            on = and_(*ensure_collection(on), dialect=dialect, **opts)
    +2463            join.set("on", on)
    +2464
    +2465        if using:
    +2466            join = _apply_list_builder(
    +2467                *ensure_collection(using),
    +2468                instance=join,
    +2469                arg="using",
    +2470                append=append,
    +2471                copy=copy,
    +2472                **opts,
    +2473            )
    +2474
    +2475        if join_alias:
    +2476            join.set("this", alias_(join.this, join_alias, table=True))
    +2477        return _apply_list_builder(
    +2478            join,
    +2479            instance=self,
    +2480            arg="joins",
    +2481            append=append,
    +2482            copy=copy,
    +2483            **opts,
    +2484        )
     
    @@ -23126,37 +23226,37 @@ Otherwise, this resets the expressions.
    -
    2480    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2481        """
    -2482        Append to or set the WHERE expressions.
    -2483
    -2484        Example:
    -2485            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    -2486            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    -2487
    -2488        Args:
    -2489            *expressions (str | Expression): the SQL code strings to parse.
    -2490                If an `Expression` instance is passed, it will be used as-is.
    -2491                Multiple expressions are combined with an AND operator.
    -2492            append (bool): if `True`, AND the new expressions to any existing expression.
    -2493                Otherwise, this resets the expression.
    -2494            dialect (str): the dialect used to parse the input expressions.
    -2495            copy (bool): if `False`, modify this expression instance in-place.
    -2496            opts (kwargs): other options to use to parse the input expressions.
    -2497
    -2498        Returns:
    -2499            Select: the modified expression.
    -2500        """
    -2501        return _apply_conjunction_builder(
    -2502            *expressions,
    -2503            instance=self,
    -2504            arg="where",
    -2505            append=append,
    -2506            into=Where,
    -2507            dialect=dialect,
    -2508            copy=copy,
    -2509            **opts,
    -2510        )
    +            
    2486    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2487        """
    +2488        Append to or set the WHERE expressions.
    +2489
    +2490        Example:
    +2491            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    +2492            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    +2493
    +2494        Args:
    +2495            *expressions (str | Expression): the SQL code strings to parse.
    +2496                If an `Expression` instance is passed, it will be used as-is.
    +2497                Multiple expressions are combined with an AND operator.
    +2498            append (bool): if `True`, AND the new expressions to any existing expression.
    +2499                Otherwise, this resets the expression.
    +2500            dialect (str): the dialect used to parse the input expressions.
    +2501            copy (bool): if `False`, modify this expression instance in-place.
    +2502            opts (kwargs): other options to use to parse the input expressions.
    +2503
    +2504        Returns:
    +2505            Select: the modified expression.
    +2506        """
    +2507        return _apply_conjunction_builder(
    +2508            *expressions,
    +2509            instance=self,
    +2510            arg="where",
    +2511            append=append,
    +2512            into=Where,
    +2513            dialect=dialect,
    +2514            copy=copy,
    +2515            **opts,
    +2516        )
     
    @@ -23205,37 +23305,37 @@ Otherwise, this resets the expression.
    -
    2512    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2513        """
    -2514        Append to or set the HAVING expressions.
    -2515
    -2516        Example:
    -2517            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    -2518            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    -2519
    -2520        Args:
    -2521            *expressions (str | Expression): the SQL code strings to parse.
    -2522                If an `Expression` instance is passed, it will be used as-is.
    -2523                Multiple expressions are combined with an AND operator.
    -2524            append (bool): if `True`, AND the new expressions to any existing expression.
    -2525                Otherwise, this resets the expression.
    -2526            dialect (str): the dialect used to parse the input expressions.
    -2527            copy (bool): if `False`, modify this expression instance in-place.
    -2528            opts (kwargs): other options to use to parse the input expressions.
    -2529
    -2530        Returns:
    -2531            Select: the modified expression.
    -2532        """
    -2533        return _apply_conjunction_builder(
    -2534            *expressions,
    -2535            instance=self,
    -2536            arg="having",
    -2537            append=append,
    -2538            into=Having,
    -2539            dialect=dialect,
    -2540            copy=copy,
    -2541            **opts,
    -2542        )
    +            
    2518    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2519        """
    +2520        Append to or set the HAVING expressions.
    +2521
    +2522        Example:
    +2523            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    +2524            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    +2525
    +2526        Args:
    +2527            *expressions (str | Expression): the SQL code strings to parse.
    +2528                If an `Expression` instance is passed, it will be used as-is.
    +2529                Multiple expressions are combined with an AND operator.
    +2530            append (bool): if `True`, AND the new expressions to any existing expression.
    +2531                Otherwise, this resets the expression.
    +2532            dialect (str): the dialect used to parse the input expressions.
    +2533            copy (bool): if `False`, modify this expression instance in-place.
    +2534            opts (kwargs): other options to use to parse the input expressions.
    +2535
    +2536        Returns:
    +2537            Select: the modified expression.
    +2538        """
    +2539        return _apply_conjunction_builder(
    +2540            *expressions,
    +2541            instance=self,
    +2542            arg="having",
    +2543            append=append,
    +2544            into=Having,
    +2545            dialect=dialect,
    +2546            copy=copy,
    +2547            **opts,
    +2548        )
     
    @@ -23284,17 +23384,17 @@ Otherwise, this resets the expression.
    -
    2544    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2545        return _apply_list_builder(
    -2546            *expressions,
    -2547            instance=self,
    -2548            arg="windows",
    -2549            append=append,
    -2550            into=Window,
    -2551            dialect=dialect,
    -2552            copy=copy,
    -2553            **opts,
    -2554        )
    +            
    2550    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2551        return _apply_list_builder(
    +2552            *expressions,
    +2553            instance=self,
    +2554            arg="windows",
    +2555            append=append,
    +2556            into=Window,
    +2557            dialect=dialect,
    +2558            copy=copy,
    +2559            **opts,
    +2560        )
     
    @@ -23312,17 +23412,17 @@ Otherwise, this resets the expression.
    -
    2556    def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2557        return _apply_conjunction_builder(
    -2558            *expressions,
    -2559            instance=self,
    -2560            arg="qualify",
    -2561            append=append,
    -2562            into=Qualify,
    -2563            dialect=dialect,
    -2564            copy=copy,
    -2565            **opts,
    -2566        )
    +            
    2562    def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2563        return _apply_conjunction_builder(
    +2564            *expressions,
    +2565            instance=self,
    +2566            arg="qualify",
    +2567            append=append,
    +2568            into=Qualify,
    +2569            dialect=dialect,
    +2570            copy=copy,
    +2571            **opts,
    +2572        )
     
    @@ -23340,24 +23440,24 @@ Otherwise, this resets the expression.
    -
    2568    def distinct(self, distinct=True, copy=True) -> Select:
    -2569        """
    -2570        Set the OFFSET expression.
    -2571
    -2572        Example:
    -2573            >>> Select().from_("tbl").select("x").distinct().sql()
    -2574            'SELECT DISTINCT x FROM tbl'
    -2575
    -2576        Args:
    -2577            distinct (bool): whether the Select should be distinct
    -2578            copy (bool): if `False`, modify this expression instance in-place.
    -2579
    -2580        Returns:
    -2581            Select: the modified expression.
    -2582        """
    -2583        instance = _maybe_copy(self, copy)
    -2584        instance.set("distinct", Distinct() if distinct else None)
    -2585        return instance
    +            
    2574    def distinct(self, distinct=True, copy=True) -> Select:
    +2575        """
    +2576        Set the OFFSET expression.
    +2577
    +2578        Example:
    +2579            >>> Select().from_("tbl").select("x").distinct().sql()
    +2580            'SELECT DISTINCT x FROM tbl'
    +2581
    +2582        Args:
    +2583            distinct (bool): whether the Select should be distinct
    +2584            copy (bool): if `False`, modify this expression instance in-place.
    +2585
    +2586        Returns:
    +2587            Select: the modified expression.
    +2588        """
    +2589        instance = _maybe_copy(self, copy)
    +2590        instance.set("distinct", Distinct() if distinct else None)
    +2591        return instance
     
    @@ -23400,42 +23500,42 @@ Otherwise, this resets the expression.
    -
    2587    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    -2588        """
    -2589        Convert this expression to a CREATE TABLE AS statement.
    -2590
    -2591        Example:
    -2592            >>> Select().select("*").from_("tbl").ctas("x").sql()
    -2593            'CREATE TABLE x AS SELECT * FROM tbl'
    -2594
    -2595        Args:
    -2596            table (str | Expression): the SQL code string to parse as the table name.
    -2597                If another `Expression` instance is passed, it will be used as-is.
    -2598            properties (dict): an optional mapping of table properties
    -2599            dialect (str): the dialect used to parse the input table.
    -2600            copy (bool): if `False`, modify this expression instance in-place.
    -2601            opts (kwargs): other options to use to parse the input table.
    -2602
    -2603        Returns:
    -2604            Create: the CREATE TABLE AS expression
    -2605        """
    -2606        instance = _maybe_copy(self, copy)
    -2607        table_expression = maybe_parse(
    -2608            table,
    -2609            into=Table,
    -2610            dialect=dialect,
    -2611            **opts,
    -2612        )
    -2613        properties_expression = None
    -2614        if properties:
    -2615            properties_expression = Properties.from_dict(properties)
    -2616
    -2617        return Create(
    -2618            this=table_expression,
    -2619            kind="table",
    -2620            expression=instance,
    -2621            properties=properties_expression,
    -2622        )
    +            
    2593    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    +2594        """
    +2595        Convert this expression to a CREATE TABLE AS statement.
    +2596
    +2597        Example:
    +2598            >>> Select().select("*").from_("tbl").ctas("x").sql()
    +2599            'CREATE TABLE x AS SELECT * FROM tbl'
    +2600
    +2601        Args:
    +2602            table (str | Expression): the SQL code string to parse as the table name.
    +2603                If another `Expression` instance is passed, it will be used as-is.
    +2604            properties (dict): an optional mapping of table properties
    +2605            dialect (str): the dialect used to parse the input table.
    +2606            copy (bool): if `False`, modify this expression instance in-place.
    +2607            opts (kwargs): other options to use to parse the input table.
    +2608
    +2609        Returns:
    +2610            Create: the CREATE TABLE AS expression
    +2611        """
    +2612        instance = _maybe_copy(self, copy)
    +2613        table_expression = maybe_parse(
    +2614            table,
    +2615            into=Table,
    +2616            dialect=dialect,
    +2617            **opts,
    +2618        )
    +2619        properties_expression = None
    +2620        if properties:
    +2621            properties_expression = Properties.from_dict(properties)
    +2622
    +2623        return Create(
    +2624            this=table_expression,
    +2625            kind="table",
    +2626            expression=instance,
    +2627            properties=properties_expression,
    +2628        )
     
    @@ -23482,29 +23582,29 @@ If another Expression instance is passed,
    -
    2624    def lock(self, update: bool = True, copy: bool = True) -> Select:
    -2625        """
    -2626        Set the locking read mode for this expression.
    -2627
    -2628        Examples:
    -2629            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    -2630            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    -2631
    -2632            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    -2633            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    -2634
    -2635        Args:
    -2636            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    -2637            copy: if `False`, modify this expression instance in-place.
    -2638
    -2639        Returns:
    -2640            The modified expression.
    -2641        """
    -2642
    -2643        inst = _maybe_copy(self, copy)
    -2644        inst.set("lock", Lock(update=update))
    -2645
    -2646        return inst
    +            
    2630    def lock(self, update: bool = True, copy: bool = True) -> Select:
    +2631        """
    +2632        Set the locking read mode for this expression.
    +2633
    +2634        Examples:
    +2635            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    +2636            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    +2637
    +2638            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    +2639            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    +2640
    +2641        Args:
    +2642            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    +2643            copy: if `False`, modify this expression instance in-place.
    +2644
    +2645        Returns:
    +2646            The modified expression.
    +2647        """
    +2648
    +2649        inst = _maybe_copy(self, copy)
    +2650        inst.set("lock", Lock(update=update))
    +2651
    +2652        return inst
     
    @@ -23622,30 +23722,30 @@ If another Expression instance is passed,
    -
    2661class Subquery(DerivedTable, Unionable):
    -2662    arg_types = {
    -2663        "this": True,
    -2664        "alias": False,
    -2665        "with": False,
    -2666        **QUERY_MODIFIERS,
    -2667    }
    -2668
    -2669    def unnest(self):
    -2670        """
    -2671        Returns the first non subquery.
    -2672        """
    -2673        expression = self
    -2674        while isinstance(expression, Subquery):
    -2675            expression = expression.this
    -2676        return expression
    -2677
    -2678    @property
    -2679    def is_star(self) -> bool:
    -2680        return self.this.is_star
    -2681
    -2682    @property
    -2683    def output_name(self):
    -2684        return self.alias
    +            
    2667class Subquery(DerivedTable, Unionable):
    +2668    arg_types = {
    +2669        "this": True,
    +2670        "alias": False,
    +2671        "with": False,
    +2672        **QUERY_MODIFIERS,
    +2673    }
    +2674
    +2675    def unnest(self):
    +2676        """
    +2677        Returns the first non subquery.
    +2678        """
    +2679        expression = self
    +2680        while isinstance(expression, Subquery):
    +2681            expression = expression.this
    +2682        return expression
    +2683
    +2684    @property
    +2685    def is_star(self) -> bool:
    +2686        return self.this.is_star
    +2687
    +2688    @property
    +2689    def output_name(self):
    +2690        return self.alias
     
    @@ -23662,14 +23762,14 @@ If another Expression instance is passed,
    -
    2669    def unnest(self):
    -2670        """
    -2671        Returns the first non subquery.
    -2672        """
    -2673        expression = self
    -2674        while isinstance(expression, Subquery):
    -2675            expression = expression.this
    -2676        return expression
    +            
    2675    def unnest(self):
    +2676        """
    +2677        Returns the first non subquery.
    +2678        """
    +2679        expression = self
    +2680        while isinstance(expression, Subquery):
    +2681            expression = expression.this
    +2682        return expression
     
    @@ -23781,19 +23881,19 @@ If another Expression instance is passed,
    -
    2687class TableSample(Expression):
    -2688    arg_types = {
    -2689        "this": False,
    -2690        "method": False,
    -2691        "bucket_numerator": False,
    -2692        "bucket_denominator": False,
    -2693        "bucket_field": False,
    -2694        "percent": False,
    -2695        "rows": False,
    -2696        "size": False,
    -2697        "seed": False,
    -2698        "kind": False,
    -2699    }
    +            
    2693class TableSample(Expression):
    +2694    arg_types = {
    +2695        "this": False,
    +2696        "method": False,
    +2697        "bucket_numerator": False,
    +2698        "bucket_denominator": False,
    +2699        "bucket_field": False,
    +2700        "percent": False,
    +2701        "rows": False,
    +2702        "size": False,
    +2703        "seed": False,
    +2704        "kind": False,
    +2705    }
     
    @@ -23856,14 +23956,14 @@ If another Expression instance is passed,
    -
    2702class Tag(Expression):
    -2703    """Tags are used for generating arbitrary sql like SELECT <span>x</span>."""
    -2704
    -2705    arg_types = {
    -2706        "this": False,
    -2707        "prefix": False,
    -2708        "postfix": False,
    -2709    }
    +            
    2708class Tag(Expression):
    +2709    """Tags are used for generating arbitrary sql like SELECT <span>x</span>."""
    +2710
    +2711    arg_types = {
    +2712        "this": False,
    +2713        "prefix": False,
    +2714        "postfix": False,
    +2715    }
     
    @@ -23928,14 +24028,14 @@ If another Expression instance is passed,
    -
    2712class Pivot(Expression):
    -2713    arg_types = {
    -2714        "this": False,
    -2715        "alias": False,
    -2716        "expressions": True,
    -2717        "field": True,
    -2718        "unpivot": True,
    -2719    }
    +            
    2718class Pivot(Expression):
    +2719    arg_types = {
    +2720        "this": False,
    +2721        "alias": False,
    +2722        "expressions": True,
    +2723        "field": True,
    +2724        "unpivot": True,
    +2725    }
     
    @@ -23998,14 +24098,14 @@ If another Expression instance is passed,
    -
    2722class Window(Expression):
    -2723    arg_types = {
    -2724        "this": True,
    -2725        "partition_by": False,
    -2726        "order": False,
    -2727        "spec": False,
    -2728        "alias": False,
    -2729    }
    +            
    2728class Window(Expression):
    +2729    arg_types = {
    +2730        "this": True,
    +2731        "partition_by": False,
    +2732        "order": False,
    +2733        "spec": False,
    +2734        "alias": False,
    +2735    }
     
    @@ -24068,14 +24168,14 @@ If another Expression instance is passed,
    -
    2732class WindowSpec(Expression):
    -2733    arg_types = {
    -2734        "kind": False,
    -2735        "start": False,
    -2736        "start_side": False,
    -2737        "end": False,
    -2738        "end_side": False,
    -2739    }
    +            
    2738class WindowSpec(Expression):
    +2739    arg_types = {
    +2740        "kind": False,
    +2741        "start": False,
    +2742        "start_side": False,
    +2743        "end": False,
    +2744        "end_side": False,
    +2745    }
     
    @@ -24138,8 +24238,8 @@ If another Expression instance is passed,
    -
    2742class Where(Expression):
    -2743    pass
    +            
    2748class Where(Expression):
    +2749    pass
     
    @@ -24202,16 +24302,16 @@ If another Expression instance is passed,
    -
    2746class Star(Expression):
    -2747    arg_types = {"except": False, "replace": False}
    -2748
    -2749    @property
    -2750    def name(self) -> str:
    -2751        return "*"
    -2752
    -2753    @property
    -2754    def output_name(self):
    -2755        return self.name
    +            
    2752class Star(Expression):
    +2753    arg_types = {"except": False, "replace": False}
    +2754
    +2755    @property
    +2756    def name(self) -> str:
    +2757        return "*"
    +2758
    +2759    @property
    +2760    def output_name(self):
    +2761        return self.name
     
    @@ -24303,8 +24403,8 @@ If another Expression instance is passed,
    -
    2758class Parameter(Expression):
    -2759    arg_types = {"this": True, "wrapped": False}
    +            
    2764class Parameter(Expression):
    +2765    arg_types = {"this": True, "wrapped": False}
     
    @@ -24367,8 +24467,8 @@ If another Expression instance is passed,
    -
    2762class SessionParameter(Expression):
    -2763    arg_types = {"this": True, "kind": False}
    +            
    2768class SessionParameter(Expression):
    +2769    arg_types = {"this": True, "kind": False}
     
    @@ -24431,8 +24531,8 @@ If another Expression instance is passed,
    -
    2766class Placeholder(Expression):
    -2767    arg_types = {"this": False}
    +            
    2772class Placeholder(Expression):
    +2773    arg_types = {"this": False}
     
    @@ -24495,12 +24595,12 @@ If another Expression instance is passed,
    -
    2770class Null(Condition):
    -2771    arg_types: t.Dict[str, t.Any] = {}
    -2772
    -2773    @property
    -2774    def name(self) -> str:
    -2775        return "NULL"
    +            
    2776class Null(Condition):
    +2777    arg_types: t.Dict[str, t.Any] = {}
    +2778
    +2779    @property
    +2780    def name(self) -> str:
    +2781        return "NULL"
     
    @@ -24569,8 +24669,8 @@ If another Expression instance is passed,
    -
    2778class Boolean(Condition):
    -2779    pass
    +            
    2784class Boolean(Condition):
    +2785    pass
     
    @@ -24639,127 +24739,127 @@ If another Expression instance is passed,
    -
    2782class DataType(Expression):
    -2783    arg_types = {
    -2784        "this": True,
    -2785        "expressions": False,
    -2786        "nested": False,
    -2787        "values": False,
    -2788        "prefix": False,
    -2789    }
    -2790
    -2791    class Type(AutoName):
    -2792        CHAR = auto()
    -2793        NCHAR = auto()
    -2794        VARCHAR = auto()
    -2795        NVARCHAR = auto()
    -2796        TEXT = auto()
    -2797        MEDIUMTEXT = auto()
    -2798        LONGTEXT = auto()
    -2799        MEDIUMBLOB = auto()
    -2800        LONGBLOB = auto()
    -2801        BINARY = auto()
    -2802        VARBINARY = auto()
    -2803        INT = auto()
    -2804        UINT = auto()
    -2805        TINYINT = auto()
    -2806        UTINYINT = auto()
    -2807        SMALLINT = auto()
    -2808        USMALLINT = auto()
    -2809        BIGINT = auto()
    -2810        UBIGINT = auto()
    -2811        FLOAT = auto()
    -2812        DOUBLE = auto()
    -2813        DECIMAL = auto()
    -2814        BIT = auto()
    -2815        BOOLEAN = auto()
    -2816        JSON = auto()
    -2817        JSONB = auto()
    -2818        INTERVAL = auto()
    -2819        TIME = auto()
    -2820        TIMESTAMP = auto()
    -2821        TIMESTAMPTZ = auto()
    -2822        TIMESTAMPLTZ = auto()
    -2823        DATE = auto()
    -2824        DATETIME = auto()
    -2825        ARRAY = auto()
    -2826        MAP = auto()
    -2827        UUID = auto()
    -2828        GEOGRAPHY = auto()
    -2829        GEOMETRY = auto()
    -2830        STRUCT = auto()
    -2831        NULLABLE = auto()
    -2832        HLLSKETCH = auto()
    -2833        HSTORE = auto()
    -2834        SUPER = auto()
    -2835        SERIAL = auto()
    -2836        SMALLSERIAL = auto()
    -2837        BIGSERIAL = auto()
    -2838        XML = auto()
    -2839        UNIQUEIDENTIFIER = auto()
    -2840        MONEY = auto()
    -2841        SMALLMONEY = auto()
    -2842        ROWVERSION = auto()
    -2843        IMAGE = auto()
    -2844        VARIANT = auto()
    -2845        OBJECT = auto()
    -2846        INET = auto()
    -2847        NULL = auto()
    -2848        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    -2849
    -2850    TEXT_TYPES = {
    -2851        Type.CHAR,
    -2852        Type.NCHAR,
    -2853        Type.VARCHAR,
    -2854        Type.NVARCHAR,
    -2855        Type.TEXT,
    -2856    }
    -2857
    -2858    INTEGER_TYPES = {
    -2859        Type.INT,
    -2860        Type.TINYINT,
    -2861        Type.SMALLINT,
    -2862        Type.BIGINT,
    -2863    }
    -2864
    -2865    FLOAT_TYPES = {
    -2866        Type.FLOAT,
    -2867        Type.DOUBLE,
    -2868    }
    -2869
    -2870    NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES}
    -2871
    -2872    TEMPORAL_TYPES = {
    -2873        Type.TIMESTAMP,
    -2874        Type.TIMESTAMPTZ,
    -2875        Type.TIMESTAMPLTZ,
    -2876        Type.DATE,
    -2877        Type.DATETIME,
    -2878    }
    -2879
    -2880    @classmethod
    -2881    def build(
    -2882        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    -2883    ) -> DataType:
    -2884        from sqlglot import parse_one
    +            
    2788class DataType(Expression):
    +2789    arg_types = {
    +2790        "this": True,
    +2791        "expressions": False,
    +2792        "nested": False,
    +2793        "values": False,
    +2794        "prefix": False,
    +2795    }
    +2796
    +2797    class Type(AutoName):
    +2798        CHAR = auto()
    +2799        NCHAR = auto()
    +2800        VARCHAR = auto()
    +2801        NVARCHAR = auto()
    +2802        TEXT = auto()
    +2803        MEDIUMTEXT = auto()
    +2804        LONGTEXT = auto()
    +2805        MEDIUMBLOB = auto()
    +2806        LONGBLOB = auto()
    +2807        BINARY = auto()
    +2808        VARBINARY = auto()
    +2809        INT = auto()
    +2810        UINT = auto()
    +2811        TINYINT = auto()
    +2812        UTINYINT = auto()
    +2813        SMALLINT = auto()
    +2814        USMALLINT = auto()
    +2815        BIGINT = auto()
    +2816        UBIGINT = auto()
    +2817        FLOAT = auto()
    +2818        DOUBLE = auto()
    +2819        DECIMAL = auto()
    +2820        BIT = auto()
    +2821        BOOLEAN = auto()
    +2822        JSON = auto()
    +2823        JSONB = auto()
    +2824        INTERVAL = auto()
    +2825        TIME = auto()
    +2826        TIMESTAMP = auto()
    +2827        TIMESTAMPTZ = auto()
    +2828        TIMESTAMPLTZ = auto()
    +2829        DATE = auto()
    +2830        DATETIME = auto()
    +2831        ARRAY = auto()
    +2832        MAP = auto()
    +2833        UUID = auto()
    +2834        GEOGRAPHY = auto()
    +2835        GEOMETRY = auto()
    +2836        STRUCT = auto()
    +2837        NULLABLE = auto()
    +2838        HLLSKETCH = auto()
    +2839        HSTORE = auto()
    +2840        SUPER = auto()
    +2841        SERIAL = auto()
    +2842        SMALLSERIAL = auto()
    +2843        BIGSERIAL = auto()
    +2844        XML = auto()
    +2845        UNIQUEIDENTIFIER = auto()
    +2846        MONEY = auto()
    +2847        SMALLMONEY = auto()
    +2848        ROWVERSION = auto()
    +2849        IMAGE = auto()
    +2850        VARIANT = auto()
    +2851        OBJECT = auto()
    +2852        INET = auto()
    +2853        NULL = auto()
    +2854        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    +2855
    +2856    TEXT_TYPES = {
    +2857        Type.CHAR,
    +2858        Type.NCHAR,
    +2859        Type.VARCHAR,
    +2860        Type.NVARCHAR,
    +2861        Type.TEXT,
    +2862    }
    +2863
    +2864    INTEGER_TYPES = {
    +2865        Type.INT,
    +2866        Type.TINYINT,
    +2867        Type.SMALLINT,
    +2868        Type.BIGINT,
    +2869    }
    +2870
    +2871    FLOAT_TYPES = {
    +2872        Type.FLOAT,
    +2873        Type.DOUBLE,
    +2874    }
    +2875
    +2876    NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES}
    +2877
    +2878    TEMPORAL_TYPES = {
    +2879        Type.TIMESTAMP,
    +2880        Type.TIMESTAMPTZ,
    +2881        Type.TIMESTAMPLTZ,
    +2882        Type.DATE,
    +2883        Type.DATETIME,
    +2884    }
     2885
    -2886        if isinstance(dtype, str):
    -2887            if dtype.upper() in cls.Type.__members__:
    -2888                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    -2889            else:
    -2890                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    -2891            if data_type_exp is None:
    -2892                raise ValueError(f"Unparsable data type value: {dtype}")
    -2893        elif isinstance(dtype, DataType.Type):
    -2894            data_type_exp = DataType(this=dtype)
    -2895        elif isinstance(dtype, DataType):
    -2896            return dtype
    -2897        else:
    -2898            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    -2899        return DataType(**{**data_type_exp.args, **kwargs})
    -2900
    -2901    def is_type(self, dtype: DataType.Type) -> bool:
    -2902        return self.this == dtype
    +2886    @classmethod
    +2887    def build(
    +2888        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    +2889    ) -> DataType:
    +2890        from sqlglot import parse_one
    +2891
    +2892        if isinstance(dtype, str):
    +2893            if dtype.upper() in cls.Type.__members__:
    +2894                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    +2895            else:
    +2896                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    +2897            if data_type_exp is None:
    +2898                raise ValueError(f"Unparsable data type value: {dtype}")
    +2899        elif isinstance(dtype, DataType.Type):
    +2900            data_type_exp = DataType(this=dtype)
    +2901        elif isinstance(dtype, DataType):
    +2902            return dtype
    +2903        else:
    +2904            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    +2905        return DataType(**{**data_type_exp.args, **kwargs})
    +2906
    +2907    def is_type(self, dtype: DataType.Type) -> bool:
    +2908        return self.this == dtype
     
    @@ -24777,26 +24877,26 @@ If another Expression instance is passed,
    -
    2880    @classmethod
    -2881    def build(
    -2882        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    -2883    ) -> DataType:
    -2884        from sqlglot import parse_one
    -2885
    -2886        if isinstance(dtype, str):
    -2887            if dtype.upper() in cls.Type.__members__:
    -2888                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    -2889            else:
    -2890                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    -2891            if data_type_exp is None:
    -2892                raise ValueError(f"Unparsable data type value: {dtype}")
    -2893        elif isinstance(dtype, DataType.Type):
    -2894            data_type_exp = DataType(this=dtype)
    -2895        elif isinstance(dtype, DataType):
    -2896            return dtype
    -2897        else:
    -2898            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    -2899        return DataType(**{**data_type_exp.args, **kwargs})
    +            
    2886    @classmethod
    +2887    def build(
    +2888        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    +2889    ) -> DataType:
    +2890        from sqlglot import parse_one
    +2891
    +2892        if isinstance(dtype, str):
    +2893            if dtype.upper() in cls.Type.__members__:
    +2894                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    +2895            else:
    +2896                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    +2897            if data_type_exp is None:
    +2898                raise ValueError(f"Unparsable data type value: {dtype}")
    +2899        elif isinstance(dtype, DataType.Type):
    +2900            data_type_exp = DataType(this=dtype)
    +2901        elif isinstance(dtype, DataType):
    +2902            return dtype
    +2903        else:
    +2904            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    +2905        return DataType(**{**data_type_exp.args, **kwargs})
     
    @@ -24814,8 +24914,8 @@ If another Expression instance is passed,
    -
    2901    def is_type(self, dtype: DataType.Type) -> bool:
    -2902        return self.this == dtype
    +            
    2907    def is_type(self, dtype: DataType.Type) -> bool:
    +2908        return self.this == dtype
     
    @@ -24879,64 +24979,64 @@ If another Expression instance is passed,
    -
    2791    class Type(AutoName):
    -2792        CHAR = auto()
    -2793        NCHAR = auto()
    -2794        VARCHAR = auto()
    -2795        NVARCHAR = auto()
    -2796        TEXT = auto()
    -2797        MEDIUMTEXT = auto()
    -2798        LONGTEXT = auto()
    -2799        MEDIUMBLOB = auto()
    -2800        LONGBLOB = auto()
    -2801        BINARY = auto()
    -2802        VARBINARY = auto()
    -2803        INT = auto()
    -2804        UINT = auto()
    -2805        TINYINT = auto()
    -2806        UTINYINT = auto()
    -2807        SMALLINT = auto()
    -2808        USMALLINT = auto()
    -2809        BIGINT = auto()
    -2810        UBIGINT = auto()
    -2811        FLOAT = auto()
    -2812        DOUBLE = auto()
    -2813        DECIMAL = auto()
    -2814        BIT = auto()
    -2815        BOOLEAN = auto()
    -2816        JSON = auto()
    -2817        JSONB = auto()
    -2818        INTERVAL = auto()
    -2819        TIME = auto()
    -2820        TIMESTAMP = auto()
    -2821        TIMESTAMPTZ = auto()
    -2822        TIMESTAMPLTZ = auto()
    -2823        DATE = auto()
    -2824        DATETIME = auto()
    -2825        ARRAY = auto()
    -2826        MAP = auto()
    -2827        UUID = auto()
    -2828        GEOGRAPHY = auto()
    -2829        GEOMETRY = auto()
    -2830        STRUCT = auto()
    -2831        NULLABLE = auto()
    -2832        HLLSKETCH = auto()
    -2833        HSTORE = auto()
    -2834        SUPER = auto()
    -2835        SERIAL = auto()
    -2836        SMALLSERIAL = auto()
    -2837        BIGSERIAL = auto()
    -2838        XML = auto()
    -2839        UNIQUEIDENTIFIER = auto()
    -2840        MONEY = auto()
    -2841        SMALLMONEY = auto()
    -2842        ROWVERSION = auto()
    -2843        IMAGE = auto()
    -2844        VARIANT = auto()
    -2845        OBJECT = auto()
    -2846        INET = auto()
    -2847        NULL = auto()
    -2848        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    +            
    2797    class Type(AutoName):
    +2798        CHAR = auto()
    +2799        NCHAR = auto()
    +2800        VARCHAR = auto()
    +2801        NVARCHAR = auto()
    +2802        TEXT = auto()
    +2803        MEDIUMTEXT = auto()
    +2804        LONGTEXT = auto()
    +2805        MEDIUMBLOB = auto()
    +2806        LONGBLOB = auto()
    +2807        BINARY = auto()
    +2808        VARBINARY = auto()
    +2809        INT = auto()
    +2810        UINT = auto()
    +2811        TINYINT = auto()
    +2812        UTINYINT = auto()
    +2813        SMALLINT = auto()
    +2814        USMALLINT = auto()
    +2815        BIGINT = auto()
    +2816        UBIGINT = auto()
    +2817        FLOAT = auto()
    +2818        DOUBLE = auto()
    +2819        DECIMAL = auto()
    +2820        BIT = auto()
    +2821        BOOLEAN = auto()
    +2822        JSON = auto()
    +2823        JSONB = auto()
    +2824        INTERVAL = auto()
    +2825        TIME = auto()
    +2826        TIMESTAMP = auto()
    +2827        TIMESTAMPTZ = auto()
    +2828        TIMESTAMPLTZ = auto()
    +2829        DATE = auto()
    +2830        DATETIME = auto()
    +2831        ARRAY = auto()
    +2832        MAP = auto()
    +2833        UUID = auto()
    +2834        GEOGRAPHY = auto()
    +2835        GEOMETRY = auto()
    +2836        STRUCT = auto()
    +2837        NULLABLE = auto()
    +2838        HLLSKETCH = auto()
    +2839        HSTORE = auto()
    +2840        SUPER = auto()
    +2841        SERIAL = auto()
    +2842        SMALLSERIAL = auto()
    +2843        BIGSERIAL = auto()
    +2844        XML = auto()
    +2845        UNIQUEIDENTIFIER = auto()
    +2846        MONEY = auto()
    +2847        SMALLMONEY = auto()
    +2848        ROWVERSION = auto()
    +2849        IMAGE = auto()
    +2850        VARIANT = auto()
    +2851        OBJECT = auto()
    +2852        INET = auto()
    +2853        NULL = auto()
    +2854        UNKNOWN = auto()  # Sentinel value, useful for type annotation
     
    @@ -25650,8 +25750,8 @@ If another Expression instance is passed,
    -
    2906class PseudoType(Expression):
    -2907    pass
    +            
    2912class PseudoType(Expression):
    +2913    pass
     
    @@ -25714,8 +25814,8 @@ If another Expression instance is passed,
    -
    2910class StructKwarg(Expression):
    -2911    arg_types = {"this": True, "expression": True}
    +            
    2916class StructKwarg(Expression):
    +2917    arg_types = {"this": True, "expression": True}
     
    @@ -25778,8 +25878,8 @@ If another Expression instance is passed,
    -
    2915class SubqueryPredicate(Predicate):
    -2916    pass
    +            
    2921class SubqueryPredicate(Predicate):
    +2922    pass
     
    @@ -25848,8 +25948,8 @@ If another Expression instance is passed,
    -
    2919class All(SubqueryPredicate):
    -2920    pass
    +            
    2925class All(SubqueryPredicate):
    +2926    pass
     
    @@ -25918,8 +26018,8 @@ If another Expression instance is passed,
    -
    2923class Any(SubqueryPredicate):
    -2924    pass
    +            
    2929class Any(SubqueryPredicate):
    +2930    pass
     
    @@ -25988,8 +26088,8 @@ If another Expression instance is passed,
    -
    2927class Exists(SubqueryPredicate):
    -2928    pass
    +            
    2933class Exists(SubqueryPredicate):
    +2934    pass
     
    @@ -26058,8 +26158,8 @@ If another Expression instance is passed,
    -
    2933class Command(Expression):
    -2934    arg_types = {"this": True, "expression": False}
    +            
    2939class Command(Expression):
    +2940    arg_types = {"this": True, "expression": False}
     
    @@ -26122,8 +26222,8 @@ If another Expression instance is passed,
    -
    2937class Transaction(Expression):
    -2938    arg_types = {"this": False, "modes": False}
    +            
    2943class Transaction(Expression):
    +2944    arg_types = {"this": False, "modes": False}
     
    @@ -26186,8 +26286,8 @@ If another Expression instance is passed,
    -
    2941class Commit(Expression):
    -2942    arg_types = {"chain": False}
    +            
    2947class Commit(Expression):
    +2948    arg_types = {"chain": False}
     
    @@ -26250,8 +26350,8 @@ If another Expression instance is passed,
    -
    2945class Rollback(Expression):
    -2946    arg_types = {"savepoint": False}
    +            
    2951class Rollback(Expression):
    +2952    arg_types = {"savepoint": False}
     
    @@ -26314,8 +26414,8 @@ If another Expression instance is passed,
    -
    2949class AlterTable(Expression):
    -2950    arg_types = {"this": True, "actions": True, "exists": False}
    +            
    2955class AlterTable(Expression):
    +2956    arg_types = {"this": True, "actions": True, "exists": False}
     
    @@ -26378,8 +26478,8 @@ If another Expression instance is passed,
    -
    2953class AddConstraint(Expression):
    -2954    arg_types = {"this": False, "expression": False, "enforced": False}
    +            
    2959class AddConstraint(Expression):
    +2960    arg_types = {"this": False, "expression": False, "enforced": False}
     
    @@ -26442,8 +26542,8 @@ If another Expression instance is passed,
    -
    2957class DropPartition(Expression):
    -2958    arg_types = {"expressions": True, "exists": False}
    +            
    2963class DropPartition(Expression):
    +2964    arg_types = {"expressions": True, "exists": False}
     
    @@ -26506,16 +26606,16 @@ If another Expression instance is passed,
    -
    2962class Binary(Expression):
    -2963    arg_types = {"this": True, "expression": True}
    -2964
    -2965    @property
    -2966    def left(self):
    -2967        return self.this
    -2968
    -2969    @property
    -2970    def right(self):
    -2971        return self.expression
    +            
    2968class Binary(Expression):
    +2969    arg_types = {"this": True, "expression": True}
    +2970
    +2971    @property
    +2972    def left(self):
    +2973        return self.this
    +2974
    +2975    @property
    +2976    def right(self):
    +2977        return self.expression
     
    @@ -26578,8 +26678,8 @@ If another Expression instance is passed,
    -
    2974class Add(Binary):
    -2975    pass
    +            
    2980class Add(Binary):
    +2981    pass
     
    @@ -26642,8 +26742,8 @@ If another Expression instance is passed,
    -
    2978class Connector(Binary, Condition):
    -2979    pass
    +            
    2984class Connector(Binary, Condition):
    +2985    pass
     
    @@ -26712,8 +26812,8 @@ If another Expression instance is passed,
    -
    2982class And(Connector):
    -2983    pass
    +            
    2988class And(Connector):
    +2989    pass
     
    @@ -26782,8 +26882,8 @@ If another Expression instance is passed,
    -
    2986class Or(Connector):
    -2987    pass
    +            
    2992class Or(Connector):
    +2993    pass
     
    @@ -26852,8 +26952,8 @@ If another Expression instance is passed,
    -
    2990class BitwiseAnd(Binary):
    -2991    pass
    +            
    2996class BitwiseAnd(Binary):
    +2997    pass
     
    @@ -26916,8 +27016,8 @@ If another Expression instance is passed,
    -
    2994class BitwiseLeftShift(Binary):
    -2995    pass
    +            
    3000class BitwiseLeftShift(Binary):
    +3001    pass
     
    @@ -26980,8 +27080,8 @@ If another Expression instance is passed,
    -
    2998class BitwiseOr(Binary):
    -2999    pass
    +            
    3004class BitwiseOr(Binary):
    +3005    pass
     
    @@ -27044,8 +27144,8 @@ If another Expression instance is passed,
    -
    3002class BitwiseRightShift(Binary):
    -3003    pass
    +            
    3008class BitwiseRightShift(Binary):
    +3009    pass
     
    @@ -27108,8 +27208,8 @@ If another Expression instance is passed,
    -
    3006class BitwiseXor(Binary):
    -3007    pass
    +            
    3012class BitwiseXor(Binary):
    +3013    pass
     
    @@ -27172,8 +27272,8 @@ If another Expression instance is passed,
    -
    3010class Div(Binary):
    -3011    pass
    +            
    3016class Div(Binary):
    +3017    pass
     
    @@ -27236,8 +27336,8 @@ If another Expression instance is passed,
    -
    3014class Overlaps(Binary):
    -3015    pass
    +            
    3020class Overlaps(Binary):
    +3021    pass
     
    @@ -27300,24 +27400,24 @@ If another Expression instance is passed,
    -
    3018class Dot(Binary):
    -3019    @property
    -3020    def name(self) -> str:
    -3021        return self.expression.name
    -3022
    -3023    @classmethod
    -3024    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    -3025        """Build a Dot object with a sequence of expressions."""
    -3026        if len(expressions) < 2:
    -3027            raise ValueError(f"Dot requires >= 2 expressions.")
    +            
    3024class Dot(Binary):
    +3025    @property
    +3026    def name(self) -> str:
    +3027        return self.expression.name
     3028
    -3029        a, b, *expressions = expressions
    -3030        dot = Dot(this=a, expression=b)
    -3031
    -3032        for expression in expressions:
    -3033            dot = Dot(this=dot, expression=expression)
    +3029    @classmethod
    +3030    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    +3031        """Build a Dot object with a sequence of expressions."""
    +3032        if len(expressions) < 2:
    +3033            raise ValueError(f"Dot requires >= 2 expressions.")
     3034
    -3035        return dot
    +3035        a, b, *expressions = expressions
    +3036        dot = Dot(this=a, expression=b)
    +3037
    +3038        for expression in expressions:
    +3039            dot = Dot(this=dot, expression=expression)
    +3040
    +3041        return dot
     
    @@ -27335,19 +27435,19 @@ If another Expression instance is passed,
    -
    3023    @classmethod
    -3024    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    -3025        """Build a Dot object with a sequence of expressions."""
    -3026        if len(expressions) < 2:
    -3027            raise ValueError(f"Dot requires >= 2 expressions.")
    -3028
    -3029        a, b, *expressions = expressions
    -3030        dot = Dot(this=a, expression=b)
    -3031
    -3032        for expression in expressions:
    -3033            dot = Dot(this=dot, expression=expression)
    +            
    3029    @classmethod
    +3030    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    +3031        """Build a Dot object with a sequence of expressions."""
    +3032        if len(expressions) < 2:
    +3033            raise ValueError(f"Dot requires >= 2 expressions.")
     3034
    -3035        return dot
    +3035        a, b, *expressions = expressions
    +3036        dot = Dot(this=a, expression=b)
    +3037
    +3038        for expression in expressions:
    +3039            dot = Dot(this=dot, expression=expression)
    +3040
    +3041        return dot
     
    @@ -27413,8 +27513,8 @@ If another Expression instance is passed,
    -
    3038class DPipe(Binary):
    -3039    pass
    +            
    3044class DPipe(Binary):
    +3045    pass
     
    @@ -27477,8 +27577,8 @@ If another Expression instance is passed,
    -
    3042class EQ(Binary, Predicate):
    -3043    pass
    +            
    3048class EQ(Binary, Predicate):
    +3049    pass
     
    @@ -27547,8 +27647,8 @@ If another Expression instance is passed,
    -
    3046class NullSafeEQ(Binary, Predicate):
    -3047    pass
    +            
    3052class NullSafeEQ(Binary, Predicate):
    +3053    pass
     
    @@ -27617,8 +27717,8 @@ If another Expression instance is passed,
    -
    3050class NullSafeNEQ(Binary, Predicate):
    -3051    pass
    +            
    3056class NullSafeNEQ(Binary, Predicate):
    +3057    pass
     
    @@ -27687,8 +27787,8 @@ If another Expression instance is passed,
    -
    3054class Distance(Binary):
    -3055    pass
    +            
    3060class Distance(Binary):
    +3061    pass
     
    @@ -27751,8 +27851,8 @@ If another Expression instance is passed,
    -
    3058class Escape(Binary):
    -3059    pass
    +            
    3064class Escape(Binary):
    +3065    pass
     
    @@ -27815,8 +27915,8 @@ If another Expression instance is passed,
    -
    3062class Glob(Binary, Predicate):
    -3063    pass
    +            
    3068class Glob(Binary, Predicate):
    +3069    pass
     
    @@ -27885,8 +27985,8 @@ If another Expression instance is passed,
    -
    3066class GT(Binary, Predicate):
    -3067    pass
    +            
    3072class GT(Binary, Predicate):
    +3073    pass
     
    @@ -27955,8 +28055,8 @@ If another Expression instance is passed,
    -
    3070class GTE(Binary, Predicate):
    -3071    pass
    +            
    3076class GTE(Binary, Predicate):
    +3077    pass
     
    @@ -28025,8 +28125,8 @@ If another Expression instance is passed,
    -
    3074class ILike(Binary, Predicate):
    -3075    pass
    +            
    3080class ILike(Binary, Predicate):
    +3081    pass
     
    @@ -28095,8 +28195,8 @@ If another Expression instance is passed,
    -
    3078class ILikeAny(Binary, Predicate):
    -3079    pass
    +            
    3084class ILikeAny(Binary, Predicate):
    +3085    pass
     
    @@ -28165,8 +28265,8 @@ If another Expression instance is passed,
    -
    3082class IntDiv(Binary):
    -3083    pass
    +            
    3088class IntDiv(Binary):
    +3089    pass
     
    @@ -28229,8 +28329,8 @@ If another Expression instance is passed,
    -
    3086class Is(Binary, Predicate):
    -3087    pass
    +            
    3092class Is(Binary, Predicate):
    +3093    pass
     
    @@ -28299,8 +28399,8 @@ If another Expression instance is passed,
    -
    3090class Kwarg(Binary):
    -3091    """Kwarg in special functions like func(kwarg => y)."""
    +            
    3096class Kwarg(Binary):
    +3097    """Kwarg in special functions like func(kwarg => y)."""
     
    @@ -28365,8 +28465,8 @@ If another Expression instance is passed,
    -
    3094class Like(Binary, Predicate):
    -3095    pass
    +            
    3100class Like(Binary, Predicate):
    +3101    pass
     
    @@ -28435,8 +28535,8 @@ If another Expression instance is passed,
    -
    3098class LikeAny(Binary, Predicate):
    -3099    pass
    +            
    3104class LikeAny(Binary, Predicate):
    +3105    pass
     
    @@ -28505,8 +28605,8 @@ If another Expression instance is passed,
    -
    3102class LT(Binary, Predicate):
    -3103    pass
    +            
    3108class LT(Binary, Predicate):
    +3109    pass
     
    @@ -28575,8 +28675,8 @@ If another Expression instance is passed,
    -
    3106class LTE(Binary, Predicate):
    -3107    pass
    +            
    3112class LTE(Binary, Predicate):
    +3113    pass
     
    @@ -28645,8 +28745,8 @@ If another Expression instance is passed,
    -
    3110class Mod(Binary):
    -3111    pass
    +            
    3116class Mod(Binary):
    +3117    pass
     
    @@ -28709,8 +28809,8 @@ If another Expression instance is passed,
    -
    3114class Mul(Binary):
    -3115    pass
    +            
    3120class Mul(Binary):
    +3121    pass
     
    @@ -28773,8 +28873,8 @@ If another Expression instance is passed,
    -
    3118class NEQ(Binary, Predicate):
    -3119    pass
    +            
    3124class NEQ(Binary, Predicate):
    +3125    pass
     
    @@ -28843,8 +28943,8 @@ If another Expression instance is passed,
    -
    3122class SimilarTo(Binary, Predicate):
    -3123    pass
    +            
    3128class SimilarTo(Binary, Predicate):
    +3129    pass
     
    @@ -28913,8 +29013,8 @@ If another Expression instance is passed,
    -
    3126class Slice(Binary):
    -3127    arg_types = {"this": False, "expression": False}
    +            
    3132class Slice(Binary):
    +3133    arg_types = {"this": False, "expression": False}
     
    @@ -28977,8 +29077,8 @@ If another Expression instance is passed,
    -
    3130class Sub(Binary):
    -3131    pass
    +            
    3136class Sub(Binary):
    +3137    pass
     
    @@ -29041,8 +29141,8 @@ If another Expression instance is passed,
    -
    3134class ArrayOverlaps(Binary):
    -3135    pass
    +            
    3140class ArrayOverlaps(Binary):
    +3141    pass
     
    @@ -29105,8 +29205,8 @@ If another Expression instance is passed,
    -
    3140class Unary(Expression):
    -3141    pass
    +            
    3146class Unary(Expression):
    +3147    pass
     
    @@ -29169,8 +29269,8 @@ If another Expression instance is passed,
    -
    3144class BitwiseNot(Unary):
    -3145    pass
    +            
    3150class BitwiseNot(Unary):
    +3151    pass
     
    @@ -29233,8 +29333,8 @@ If another Expression instance is passed,
    -
    3148class Not(Unary, Condition):
    -3149    pass
    +            
    3154class Not(Unary, Condition):
    +3155    pass
     
    @@ -29303,8 +29403,8 @@ If another Expression instance is passed,
    -
    3152class Paren(Unary, Condition):
    -3153    arg_types = {"this": True, "with": False}
    +            
    3158class Paren(Unary, Condition):
    +3159    arg_types = {"this": True, "with": False}
     
    @@ -29373,8 +29473,8 @@ If another Expression instance is passed,
    -
    3156class Neg(Unary):
    -3157    pass
    +            
    3162class Neg(Unary):
    +3163    pass
     
    @@ -29437,12 +29537,12 @@ If another Expression instance is passed,
    -
    3161class Alias(Expression):
    -3162    arg_types = {"this": True, "alias": False}
    -3163
    -3164    @property
    -3165    def output_name(self):
    -3166        return self.alias
    +            
    3167class Alias(Expression):
    +3168    arg_types = {"this": True, "alias": False}
    +3169
    +3170    @property
    +3171    def output_name(self):
    +3172        return self.alias
     
    @@ -29534,12 +29634,12 @@ If another Expression instance is passed,
    -
    3169class Aliases(Expression):
    -3170    arg_types = {"this": True, "expressions": True}
    -3171
    -3172    @property
    -3173    def aliases(self):
    -3174        return self.expressions
    +            
    3175class Aliases(Expression):
    +3176    arg_types = {"this": True, "expressions": True}
    +3177
    +3178    @property
    +3179    def aliases(self):
    +3180        return self.expressions
     
    @@ -29602,8 +29702,8 @@ If another Expression instance is passed,
    -
    3177class AtTimeZone(Expression):
    -3178    arg_types = {"this": True, "zone": True}
    +            
    3183class AtTimeZone(Expression):
    +3184    arg_types = {"this": True, "zone": True}
     
    @@ -29666,8 +29766,8 @@ If another Expression instance is passed,
    -
    3181class Between(Predicate):
    -3182    arg_types = {"this": True, "low": True, "high": True}
    +            
    3187class Between(Predicate):
    +3188    arg_types = {"this": True, "low": True, "high": True}
     
    @@ -29736,8 +29836,8 @@ If another Expression instance is passed,
    -
    3185class Bracket(Condition):
    -3186    arg_types = {"this": True, "expressions": True}
    +            
    3191class Bracket(Condition):
    +3192    arg_types = {"this": True, "expressions": True}
     
    @@ -29806,8 +29906,8 @@ If another Expression instance is passed,
    -
    3189class Distinct(Expression):
    -3190    arg_types = {"expressions": False, "on": False}
    +            
    3195class Distinct(Expression):
    +3196    arg_types = {"expressions": False, "on": False}
     
    @@ -29870,15 +29970,15 @@ If another Expression instance is passed,
    -
    3193class In(Predicate):
    -3194    arg_types = {
    -3195        "this": True,
    -3196        "expressions": False,
    -3197        "query": False,
    -3198        "unnest": False,
    -3199        "field": False,
    -3200        "is_global": False,
    -3201    }
    +            
    3199class In(Predicate):
    +3200    arg_types = {
    +3201        "this": True,
    +3202        "expressions": False,
    +3203        "query": False,
    +3204        "unnest": False,
    +3205        "field": False,
    +3206        "is_global": False,
    +3207    }
     
    @@ -29947,18 +30047,18 @@ If another Expression instance is passed,
    -
    3204class TimeUnit(Expression):
    -3205    """Automatically converts unit arg into a var."""
    -3206
    -3207    arg_types = {"unit": False}
    -3208
    -3209    def __init__(self, **args):
    -3210        unit = args.get("unit")
    -3211        if isinstance(unit, (Column, Literal)):
    -3212            args["unit"] = Var(this=unit.name)
    -3213        elif isinstance(unit, Week):
    -3214            unit.set("this", Var(this=unit.this.name))
    -3215        super().__init__(**args)
    +            
    3210class TimeUnit(Expression):
    +3211    """Automatically converts unit arg into a var."""
    +3212
    +3213    arg_types = {"unit": False}
    +3214
    +3215    def __init__(self, **args):
    +3216        unit = args.get("unit")
    +3217        if isinstance(unit, (Column, Literal)):
    +3218            args["unit"] = Var(this=unit.name)
    +3219        elif isinstance(unit, Week):
    +3220            unit.set("this", Var(this=unit.this.name))
    +3221        super().__init__(**args)
     
    @@ -29976,13 +30076,13 @@ If another Expression instance is passed,
    -
    3209    def __init__(self, **args):
    -3210        unit = args.get("unit")
    -3211        if isinstance(unit, (Column, Literal)):
    -3212            args["unit"] = Var(this=unit.name)
    -3213        elif isinstance(unit, Week):
    -3214            unit.set("this", Var(this=unit.this.name))
    -3215        super().__init__(**args)
    +            
    3215    def __init__(self, **args):
    +3216        unit = args.get("unit")
    +3217        if isinstance(unit, (Column, Literal)):
    +3218            args["unit"] = Var(this=unit.name)
    +3219        elif isinstance(unit, Week):
    +3220            unit.set("this", Var(this=unit.this.name))
    +3221        super().__init__(**args)
     
    @@ -30045,8 +30145,8 @@ If another Expression instance is passed,
    -
    3218class Interval(TimeUnit):
    -3219    arg_types = {"this": False, "unit": False}
    +            
    3224class Interval(TimeUnit):
    +3225    arg_types = {"this": False, "unit": False}
     
    @@ -30112,8 +30212,8 @@ If another Expression instance is passed,
    -
    3222class IgnoreNulls(Expression):
    -3223    pass
    +            
    3228class IgnoreNulls(Expression):
    +3229    pass
     
    @@ -30176,8 +30276,8 @@ If another Expression instance is passed,
    -
    3226class RespectNulls(Expression):
    -3227    pass
    +            
    3232class RespectNulls(Expression):
    +3233    pass
     
    @@ -30240,53 +30340,53 @@ If another Expression instance is passed,
    -
    3231class Func(Condition):
    -3232    """
    -3233    The base class for all function expressions.
    -3234
    -3235    Attributes:
    -3236        is_var_len_args (bool): if set to True the last argument defined in arg_types will be
    -3237            treated as a variable length argument and the argument's value will be stored as a list.
    -3238        _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)
    -3239            for this function expression. These values are used to map this node to a name during parsing
    -3240            as well as to provide the function's name during SQL string generation. By default the SQL
    -3241            name is set to the expression's class name transformed to snake case.
    -3242    """
    -3243
    -3244    is_var_len_args = False
    -3245
    -3246    @classmethod
    -3247    def from_arg_list(cls, args):
    -3248        if cls.is_var_len_args:
    -3249            all_arg_keys = list(cls.arg_types)
    -3250            # If this function supports variable length argument treat the last argument as such.
    -3251            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    -3252            num_non_var = len(non_var_len_arg_keys)
    -3253
    -3254            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    -3255            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    -3256        else:
    -3257            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    -3258
    -3259        return cls(**args_dict)
    -3260
    -3261    @classmethod
    -3262    def sql_names(cls):
    -3263        if cls is Func:
    -3264            raise NotImplementedError(
    -3265                "SQL name is only supported by concrete function implementations"
    -3266            )
    -3267        if "_sql_names" not in cls.__dict__:
    -3268            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    -3269        return cls._sql_names
    -3270
    -3271    @classmethod
    -3272    def sql_name(cls):
    -3273        return cls.sql_names()[0]
    -3274
    -3275    @classmethod
    -3276    def default_parser_mappings(cls):
    -3277        return {name: cls.from_arg_list for name in cls.sql_names()}
    +            
    3237class Func(Condition):
    +3238    """
    +3239    The base class for all function expressions.
    +3240
    +3241    Attributes:
    +3242        is_var_len_args (bool): if set to True the last argument defined in arg_types will be
    +3243            treated as a variable length argument and the argument's value will be stored as a list.
    +3244        _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)
    +3245            for this function expression. These values are used to map this node to a name during parsing
    +3246            as well as to provide the function's name during SQL string generation. By default the SQL
    +3247            name is set to the expression's class name transformed to snake case.
    +3248    """
    +3249
    +3250    is_var_len_args = False
    +3251
    +3252    @classmethod
    +3253    def from_arg_list(cls, args):
    +3254        if cls.is_var_len_args:
    +3255            all_arg_keys = list(cls.arg_types)
    +3256            # If this function supports variable length argument treat the last argument as such.
    +3257            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    +3258            num_non_var = len(non_var_len_arg_keys)
    +3259
    +3260            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    +3261            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    +3262        else:
    +3263            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    +3264
    +3265        return cls(**args_dict)
    +3266
    +3267    @classmethod
    +3268    def sql_names(cls):
    +3269        if cls is Func:
    +3270            raise NotImplementedError(
    +3271                "SQL name is only supported by concrete function implementations"
    +3272            )
    +3273        if "_sql_names" not in cls.__dict__:
    +3274            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    +3275        return cls._sql_names
    +3276
    +3277    @classmethod
    +3278    def sql_name(cls):
    +3279        return cls.sql_names()[0]
    +3280
    +3281    @classmethod
    +3282    def default_parser_mappings(cls):
    +3283        return {name: cls.from_arg_list for name in cls.sql_names()}
     
    @@ -30317,20 +30417,20 @@ name is set to the expression's class name transformed to snake case.
    -
    3246    @classmethod
    -3247    def from_arg_list(cls, args):
    -3248        if cls.is_var_len_args:
    -3249            all_arg_keys = list(cls.arg_types)
    -3250            # If this function supports variable length argument treat the last argument as such.
    -3251            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    -3252            num_non_var = len(non_var_len_arg_keys)
    -3253
    -3254            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    -3255            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    -3256        else:
    -3257            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    -3258
    -3259        return cls(**args_dict)
    +            
    3252    @classmethod
    +3253    def from_arg_list(cls, args):
    +3254        if cls.is_var_len_args:
    +3255            all_arg_keys = list(cls.arg_types)
    +3256            # If this function supports variable length argument treat the last argument as such.
    +3257            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    +3258            num_non_var = len(non_var_len_arg_keys)
    +3259
    +3260            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    +3261            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    +3262        else:
    +3263            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    +3264
    +3265        return cls(**args_dict)
     
    @@ -30349,15 +30449,15 @@ name is set to the expression's class name transformed to snake case.
    -
    3261    @classmethod
    -3262    def sql_names(cls):
    -3263        if cls is Func:
    -3264            raise NotImplementedError(
    -3265                "SQL name is only supported by concrete function implementations"
    -3266            )
    -3267        if "_sql_names" not in cls.__dict__:
    -3268            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    -3269        return cls._sql_names
    +            
    3267    @classmethod
    +3268    def sql_names(cls):
    +3269        if cls is Func:
    +3270            raise NotImplementedError(
    +3271                "SQL name is only supported by concrete function implementations"
    +3272            )
    +3273        if "_sql_names" not in cls.__dict__:
    +3274            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    +3275        return cls._sql_names
     
    @@ -30376,9 +30476,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3271    @classmethod
    -3272    def sql_name(cls):
    -3273        return cls.sql_names()[0]
    +            
    3277    @classmethod
    +3278    def sql_name(cls):
    +3279        return cls.sql_names()[0]
     
    @@ -30397,9 +30497,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3275    @classmethod
    -3276    def default_parser_mappings(cls):
    -3277        return {name: cls.from_arg_list for name in cls.sql_names()}
    +            
    3281    @classmethod
    +3282    def default_parser_mappings(cls):
    +3283        return {name: cls.from_arg_list for name in cls.sql_names()}
     
    @@ -30469,8 +30569,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3280class AggFunc(Func):
    -3281    pass
    +            
    3286class AggFunc(Func):
    +3287    pass
     
    @@ -30546,8 +30646,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3284class Abs(Func):
    -3285    pass
    +            
    3290class Abs(Func):
    +3291    pass
     
    @@ -30623,9 +30723,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3288class Anonymous(Func):
    -3289    arg_types = {"this": True, "expressions": False}
    -3290    is_var_len_args = True
    +            
    3294class Anonymous(Func):
    +3295    arg_types = {"this": True, "expressions": False}
    +3296    is_var_len_args = True
     
    @@ -30686,6 +30786,84 @@ name is set to the expression's class name transformed to snake case.
    or_
    not_
    +
    + + +
    +
    + +
    + + class + Hll(AggFunc): + + + +
    + +
    3301class Hll(AggFunc):
    +3302    arg_types = {"this": True, "expressions": False}
    +3303    is_var_len_args = True
    +
    + + + + + @@ -30701,8 +30879,8 @@ name is set to the expression's class name transformed to snake case. -
    3293class ApproxDistinct(AggFunc):
    -3294    arg_types = {"this": True, "accuracy": False}
    +            
    3306class ApproxDistinct(AggFunc):
    +3307    arg_types = {"this": True, "accuracy": False}
     
    @@ -30778,9 +30956,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3297class Array(Func):
    -3298    arg_types = {"expressions": False}
    -3299    is_var_len_args = True
    +            
    3310class Array(Func):
    +3311    arg_types = {"expressions": False}
    +3312    is_var_len_args = True
     
    @@ -30856,8 +31034,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3303class ToChar(Func):
    -3304    arg_types = {"this": True, "format": False}
    +            
    3316class ToChar(Func):
    +3317    arg_types = {"this": True, "format": False}
     
    @@ -30933,8 +31111,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3307class GenerateSeries(Func):
    -3308    arg_types = {"start": True, "end": True, "step": False}
    +            
    3320class GenerateSeries(Func):
    +3321    arg_types = {"start": True, "end": True, "step": False}
     
    @@ -31010,8 +31188,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3311class ArrayAgg(AggFunc):
    -3312    pass
    +            
    3324class ArrayAgg(AggFunc):
    +3325    pass
     
    @@ -31087,8 +31265,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3315class ArrayAll(Func):
    -3316    arg_types = {"this": True, "expression": True}
    +            
    3328class ArrayAll(Func):
    +3329    arg_types = {"this": True, "expression": True}
     
    @@ -31164,8 +31342,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3319class ArrayAny(Func):
    -3320    arg_types = {"this": True, "expression": True}
    +            
    3332class ArrayAny(Func):
    +3333    arg_types = {"this": True, "expression": True}
     
    @@ -31241,9 +31419,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3323class ArrayConcat(Func):
    -3324    arg_types = {"this": True, "expressions": False}
    -3325    is_var_len_args = True
    +            
    3336class ArrayConcat(Func):
    +3337    arg_types = {"this": True, "expressions": False}
    +3338    is_var_len_args = True
     
    @@ -31319,8 +31497,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3328class ArrayContains(Binary, Func):
    -3329    pass
    +            
    3341class ArrayContains(Binary, Func):
    +3342    pass
     
    @@ -31396,8 +31574,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3332class ArrayContained(Binary):
    -3333    pass
    +            
    3345class ArrayContained(Binary):
    +3346    pass
     
    @@ -31460,9 +31638,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3336class ArrayFilter(Func):
    -3337    arg_types = {"this": True, "expression": True}
    -3338    _sql_names = ["FILTER", "ARRAY_FILTER"]
    +            
    3349class ArrayFilter(Func):
    +3350    arg_types = {"this": True, "expression": True}
    +3351    _sql_names = ["FILTER", "ARRAY_FILTER"]
     
    @@ -31538,8 +31716,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3341class ArrayJoin(Func):
    -3342    arg_types = {"this": True, "expression": True, "null": False}
    +            
    3354class ArrayJoin(Func):
    +3355    arg_types = {"this": True, "expression": True, "null": False}
     
    @@ -31615,8 +31793,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3345class ArraySize(Func):
    -3346    arg_types = {"this": True, "expression": False}
    +            
    3358class ArraySize(Func):
    +3359    arg_types = {"this": True, "expression": False}
     
    @@ -31692,8 +31870,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3349class ArraySort(Func):
    -3350    arg_types = {"this": True, "expression": False}
    +            
    3362class ArraySort(Func):
    +3363    arg_types = {"this": True, "expression": False}
     
    @@ -31769,8 +31947,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3353class ArraySum(Func):
    -3354    pass
    +            
    3366class ArraySum(Func):
    +3367    pass
     
    @@ -31846,8 +32024,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3357class ArrayUnionAgg(AggFunc):
    -3358    pass
    +            
    3370class ArrayUnionAgg(AggFunc):
    +3371    pass
     
    @@ -31923,8 +32101,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3361class Avg(AggFunc):
    -3362    pass
    +            
    3374class Avg(AggFunc):
    +3375    pass
     
    @@ -32000,8 +32178,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3365class AnyValue(AggFunc):
    -3366    pass
    +            
    3378class AnyValue(AggFunc):
    +3379    pass
     
    @@ -32077,8 +32255,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3369class Case(Func):
    -3370    arg_types = {"this": False, "ifs": True, "default": False}
    +            
    3382class Case(Func):
    +3383    arg_types = {"this": False, "ifs": True, "default": False}
     
    @@ -32154,23 +32332,23 @@ name is set to the expression's class name transformed to snake case.
    -
    3373class Cast(Func):
    -3374    arg_types = {"this": True, "to": True}
    -3375
    -3376    @property
    -3377    def name(self) -> str:
    -3378        return self.this.name
    -3379
    -3380    @property
    -3381    def to(self):
    -3382        return self.args["to"]
    -3383
    -3384    @property
    -3385    def output_name(self):
    -3386        return self.name
    -3387
    -3388    def is_type(self, dtype: DataType.Type) -> bool:
    -3389        return self.to.is_type(dtype)
    +            
    3386class Cast(Func):
    +3387    arg_types = {"this": True, "to": True}
    +3388
    +3389    @property
    +3390    def name(self) -> str:
    +3391        return self.this.name
    +3392
    +3393    @property
    +3394    def to(self):
    +3395        return self.args["to"]
    +3396
    +3397    @property
    +3398    def output_name(self):
    +3399        return self.name
    +3400
    +3401    def is_type(self, dtype: DataType.Type) -> bool:
    +3402        return self.to.is_type(dtype)
     
    @@ -32217,8 +32395,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3388    def is_type(self, dtype: DataType.Type) -> bool:
    -3389        return self.to.is_type(dtype)
    +            
    3401    def is_type(self, dtype: DataType.Type) -> bool:
    +3402        return self.to.is_type(dtype)
     
    @@ -32294,8 +32472,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3392class Collate(Binary):
    -3393    pass
    +            
    3405class Collate(Binary):
    +3406    pass
     
    @@ -32358,8 +32536,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3396class TryCast(Cast):
    -3397    pass
    +            
    3409class TryCast(Cast):
    +3410    pass
     
    @@ -32439,9 +32617,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3400class Ceil(Func):
    -3401    arg_types = {"this": True, "decimals": False}
    -3402    _sql_names = ["CEIL", "CEILING"]
    +            
    3413class Ceil(Func):
    +3414    arg_types = {"this": True, "decimals": False}
    +3415    _sql_names = ["CEIL", "CEILING"]
     
    @@ -32517,9 +32695,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3405class Coalesce(Func):
    -3406    arg_types = {"this": True, "expressions": False}
    -3407    is_var_len_args = True
    +            
    3418class Coalesce(Func):
    +3419    arg_types = {"this": True, "expressions": False}
    +3420    is_var_len_args = True
     
    @@ -32595,9 +32773,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3410class Concat(Func):
    -3411    arg_types = {"expressions": True}
    -3412    is_var_len_args = True
    +            
    3423class Concat(Func):
    +3424    arg_types = {"expressions": True}
    +3425    is_var_len_args = True
     
    @@ -32673,8 +32851,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3415class ConcatWs(Concat):
    -3416    _sql_names = ["CONCAT_WS"]
    +            
    3428class ConcatWs(Concat):
    +3429    _sql_names = ["CONCAT_WS"]
     
    @@ -32750,8 +32928,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3419class Count(AggFunc):
    -3420    arg_types = {"this": False}
    +            
    3432class Count(AggFunc):
    +3433    arg_types = {"this": False}
     
    @@ -32827,8 +33005,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3423class CountIf(AggFunc):
    -3424    pass
    +            
    3436class CountIf(AggFunc):
    +3437    pass
     
    @@ -32904,8 +33082,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3427class CurrentDate(Func):
    -3428    arg_types = {"this": False}
    +            
    3440class CurrentDate(Func):
    +3441    arg_types = {"this": False}
     
    @@ -32981,8 +33159,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3431class CurrentDatetime(Func):
    -3432    arg_types = {"this": False}
    +            
    3444class CurrentDatetime(Func):
    +3445    arg_types = {"this": False}
     
    @@ -33058,8 +33236,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3435class CurrentTime(Func):
    -3436    arg_types = {"this": False}
    +            
    3448class CurrentTime(Func):
    +3449    arg_types = {"this": False}
     
    @@ -33135,8 +33313,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3439class CurrentTimestamp(Func):
    -3440    arg_types = {"this": False}
    +            
    3452class CurrentTimestamp(Func):
    +3453    arg_types = {"this": False}
     
    @@ -33212,8 +33390,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3443class DateAdd(Func, TimeUnit):
    -3444    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3456class DateAdd(Func, TimeUnit):
    +3457    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -33292,8 +33470,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3447class DateSub(Func, TimeUnit):
    -3448    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3460class DateSub(Func, TimeUnit):
    +3461    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -33372,9 +33550,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3451class DateDiff(Func, TimeUnit):
    -3452    _sql_names = ["DATEDIFF", "DATE_DIFF"]
    -3453    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3464class DateDiff(Func, TimeUnit):
    +3465    _sql_names = ["DATEDIFF", "DATE_DIFF"]
    +3466    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -33453,8 +33631,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3456class DateTrunc(Func):
    -3457    arg_types = {"unit": True, "this": True, "zone": False}
    +            
    3469class DateTrunc(Func):
    +3470    arg_types = {"unit": True, "this": True, "zone": False}
     
    @@ -33530,8 +33708,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3460class DatetimeAdd(Func, TimeUnit):
    -3461    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3473class DatetimeAdd(Func, TimeUnit):
    +3474    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -33610,8 +33788,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3464class DatetimeSub(Func, TimeUnit):
    -3465    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3477class DatetimeSub(Func, TimeUnit):
    +3478    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -33690,8 +33868,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3468class DatetimeDiff(Func, TimeUnit):
    -3469    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3481class DatetimeDiff(Func, TimeUnit):
    +3482    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -33770,8 +33948,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3472class DatetimeTrunc(Func, TimeUnit):
    -3473    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3485class DatetimeTrunc(Func, TimeUnit):
    +3486    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -33850,8 +34028,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3476class DayOfWeek(Func):
    -3477    _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"]
    +            
    3489class DayOfWeek(Func):
    +3490    _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"]
     
    @@ -33927,8 +34105,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3480class DayOfMonth(Func):
    -3481    _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"]
    +            
    3493class DayOfMonth(Func):
    +3494    _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"]
     
    @@ -34004,8 +34182,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3484class DayOfYear(Func):
    -3485    _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"]
    +            
    3497class DayOfYear(Func):
    +3498    _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"]
     
    @@ -34081,8 +34259,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3488class WeekOfYear(Func):
    -3489    _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"]
    +            
    3501class WeekOfYear(Func):
    +3502    _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"]
     
    @@ -34158,8 +34336,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3492class LastDateOfMonth(Func):
    -3493    pass
    +            
    3505class LastDateOfMonth(Func):
    +3506    pass
     
    @@ -34235,8 +34413,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3496class Extract(Func):
    -3497    arg_types = {"this": True, "expression": True}
    +            
    3509class Extract(Func):
    +3510    arg_types = {"this": True, "expression": True}
     
    @@ -34312,8 +34490,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3500class TimestampAdd(Func, TimeUnit):
    -3501    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3513class TimestampAdd(Func, TimeUnit):
    +3514    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34392,8 +34570,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3504class TimestampSub(Func, TimeUnit):
    -3505    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3517class TimestampSub(Func, TimeUnit):
    +3518    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34472,8 +34650,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3508class TimestampDiff(Func, TimeUnit):
    -3509    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3521class TimestampDiff(Func, TimeUnit):
    +3522    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34552,8 +34730,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3512class TimestampTrunc(Func, TimeUnit):
    -3513    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3525class TimestampTrunc(Func, TimeUnit):
    +3526    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -34632,8 +34810,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3516class TimeAdd(Func, TimeUnit):
    -3517    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3529class TimeAdd(Func, TimeUnit):
    +3530    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34712,8 +34890,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3520class TimeSub(Func, TimeUnit):
    -3521    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3533class TimeSub(Func, TimeUnit):
    +3534    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34792,8 +34970,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3524class TimeDiff(Func, TimeUnit):
    -3525    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3537class TimeDiff(Func, TimeUnit):
    +3538    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34872,8 +35050,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3528class TimeTrunc(Func, TimeUnit):
    -3529    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3541class TimeTrunc(Func, TimeUnit):
    +3542    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -34952,9 +35130,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3532class DateFromParts(Func):
    -3533    _sql_names = ["DATEFROMPARTS"]
    -3534    arg_types = {"year": True, "month": True, "day": True}
    +            
    3545class DateFromParts(Func):
    +3546    _sql_names = ["DATEFROMPARTS"]
    +3547    arg_types = {"year": True, "month": True, "day": True}
     
    @@ -35030,8 +35208,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3537class DateStrToDate(Func):
    -3538    pass
    +            
    3550class DateStrToDate(Func):
    +3551    pass
     
    @@ -35107,8 +35285,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3541class DateToDateStr(Func):
    -3542    pass
    +            
    3554class DateToDateStr(Func):
    +3555    pass
     
    @@ -35184,8 +35362,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3545class DateToDi(Func):
    -3546    pass
    +            
    3558class DateToDi(Func):
    +3559    pass
     
    @@ -35261,8 +35439,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3549class Day(Func):
    -3550    pass
    +            
    3562class Day(Func):
    +3563    pass
     
    @@ -35338,8 +35516,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3553class Decode(Func):
    -3554    arg_types = {"this": True, "charset": True, "replace": False}
    +            
    3566class Decode(Func):
    +3567    arg_types = {"this": True, "charset": True, "replace": False}
     
    @@ -35415,8 +35593,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3557class DiToDate(Func):
    -3558    pass
    +            
    3570class DiToDate(Func):
    +3571    pass
     
    @@ -35492,8 +35670,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3561class Encode(Func):
    -3562    arg_types = {"this": True, "charset": True}
    +            
    3574class Encode(Func):
    +3575    arg_types = {"this": True, "charset": True}
     
    @@ -35569,8 +35747,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3565class Exp(Func):
    -3566    pass
    +            
    3578class Exp(Func):
    +3579    pass
     
    @@ -35646,8 +35824,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3569class Explode(Func):
    -3570    pass
    +            
    3582class Explode(Func):
    +3583    pass
     
    @@ -35723,8 +35901,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3573class ExponentialTimeDecayedAvg(AggFunc):
    -3574    arg_types = {"this": True, "time": False, "decay": False}
    +            
    3586class ExponentialTimeDecayedAvg(AggFunc):
    +3587    arg_types = {"this": True, "time": False, "decay": False}
     
    @@ -35800,8 +35978,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3577class Floor(Func):
    -3578    arg_types = {"this": True, "decimals": False}
    +            
    3590class Floor(Func):
    +3591    arg_types = {"this": True, "decimals": False}
     
    @@ -35877,9 +36055,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3581class Greatest(Func):
    -3582    arg_types = {"this": True, "expressions": False}
    -3583    is_var_len_args = True
    +            
    3594class Greatest(Func):
    +3595    arg_types = {"this": True, "expressions": False}
    +3596    is_var_len_args = True
     
    @@ -35955,8 +36133,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3586class GroupConcat(Func):
    -3587    arg_types = {"this": True, "separator": False}
    +            
    3599class GroupConcat(Func):
    +3600    arg_types = {"this": True, "separator": False}
     
    @@ -36032,8 +36210,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3590class GroupUniqArray(AggFunc):
    -3591    arg_types = {"this": True, "size": False}
    +            
    3603class GroupUniqArray(AggFunc):
    +3604    arg_types = {"this": True, "size": False}
     
    @@ -36109,8 +36287,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3594class Hex(Func):
    -3595    pass
    +            
    3607class Hex(Func):
    +3608    pass
     
    @@ -36186,8 +36364,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3598class Histogram(AggFunc):
    -3599    arg_types = {"this": True, "bins": False}
    +            
    3611class Histogram(AggFunc):
    +3612    arg_types = {"this": True, "bins": False}
     
    @@ -36263,8 +36441,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3602class If(Func):
    -3603    arg_types = {"this": True, "true": True, "false": False}
    +            
    3615class If(Func):
    +3616    arg_types = {"this": True, "true": True, "false": False}
     
    @@ -36340,9 +36518,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3606class IfNull(Func):
    -3607    arg_types = {"this": True, "expression": False}
    -3608    _sql_names = ["IFNULL", "NVL"]
    +            
    3619class IfNull(Func):
    +3620    arg_types = {"this": True, "expression": False}
    +3621    _sql_names = ["IFNULL", "NVL"]
     
    @@ -36418,8 +36596,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3611class Initcap(Func):
    -3612    pass
    +            
    3624class Initcap(Func):
    +3625    pass
     
    @@ -36495,8 +36673,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3615class JSONKeyValue(Expression):
    -3616    arg_types = {"this": True, "expression": True}
    +            
    3628class JSONKeyValue(Expression):
    +3629    arg_types = {"this": True, "expression": True}
     
    @@ -36559,15 +36737,15 @@ name is set to the expression's class name transformed to snake case.
    -
    3619class JSONObject(Func):
    -3620    arg_types = {
    -3621        "expressions": False,
    -3622        "null_handling": False,
    -3623        "unique_keys": False,
    -3624        "return_type": False,
    -3625        "format_json": False,
    -3626        "encoding": False,
    -3627    }
    +            
    3632class JSONObject(Func):
    +3633    arg_types = {
    +3634        "expressions": False,
    +3635        "null_handling": False,
    +3636        "unique_keys": False,
    +3637        "return_type": False,
    +3638        "format_json": False,
    +3639        "encoding": False,
    +3640    }
     
    @@ -36643,8 +36821,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3630class JSONBContains(Binary):
    -3631    _sql_names = ["JSONB_CONTAINS"]
    +            
    3643class JSONBContains(Binary):
    +3644    _sql_names = ["JSONB_CONTAINS"]
     
    @@ -36707,8 +36885,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3634class JSONExtract(Binary, Func):
    -3635    _sql_names = ["JSON_EXTRACT"]
    +            
    3647class JSONExtract(Binary, Func):
    +3648    _sql_names = ["JSON_EXTRACT"]
     
    @@ -36784,8 +36962,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3638class JSONExtractScalar(JSONExtract):
    -3639    _sql_names = ["JSON_EXTRACT_SCALAR"]
    +            
    3651class JSONExtractScalar(JSONExtract):
    +3652    _sql_names = ["JSON_EXTRACT_SCALAR"]
     
    @@ -36861,8 +37039,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3642class JSONBExtract(JSONExtract):
    -3643    _sql_names = ["JSONB_EXTRACT"]
    +            
    3655class JSONBExtract(JSONExtract):
    +3656    _sql_names = ["JSONB_EXTRACT"]
     
    @@ -36938,8 +37116,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3646class JSONBExtractScalar(JSONExtract):
    -3647    _sql_names = ["JSONB_EXTRACT_SCALAR"]
    +            
    3659class JSONBExtractScalar(JSONExtract):
    +3660    _sql_names = ["JSONB_EXTRACT_SCALAR"]
     
    @@ -37000,6 +37178,84 @@ name is set to the expression's class name transformed to snake case.
    or_
    not_
    +
    + + +
    +
    + +
    + + class + JSONFormat(Func): + + + +
    + +
    3663class JSONFormat(Func):
    +3664    arg_types = {"this": False, "options": False}
    +3665    _sql_names = ["JSON_FORMAT"]
    +
    + + + + + @@ -37015,9 +37271,9 @@ name is set to the expression's class name transformed to snake case. -
    3650class Least(Func):
    -3651    arg_types = {"expressions": False}
    -3652    is_var_len_args = True
    +            
    3668class Least(Func):
    +3669    arg_types = {"expressions": False}
    +3670    is_var_len_args = True
     
    @@ -37093,8 +37349,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3655class Length(Func):
    -3656    pass
    +            
    3673class Length(Func):
    +3674    pass
     
    @@ -37170,14 +37426,14 @@ name is set to the expression's class name transformed to snake case.
    -
    3659class Levenshtein(Func):
    -3660    arg_types = {
    -3661        "this": True,
    -3662        "expression": False,
    -3663        "ins_cost": False,
    -3664        "del_cost": False,
    -3665        "sub_cost": False,
    -3666    }
    +            
    3677class Levenshtein(Func):
    +3678    arg_types = {
    +3679        "this": True,
    +3680        "expression": False,
    +3681        "ins_cost": False,
    +3682        "del_cost": False,
    +3683        "sub_cost": False,
    +3684    }
     
    @@ -37253,8 +37509,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3669class Ln(Func):
    -3670    pass
    +            
    3687class Ln(Func):
    +3688    pass
     
    @@ -37330,8 +37586,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3673class Log(Func):
    -3674    arg_types = {"this": True, "expression": False}
    +            
    3691class Log(Func):
    +3692    arg_types = {"this": True, "expression": False}
     
    @@ -37407,8 +37663,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3677class Log2(Func):
    -3678    pass
    +            
    3695class Log2(Func):
    +3696    pass
     
    @@ -37484,8 +37740,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3681class Log10(Func):
    -3682    pass
    +            
    3699class Log10(Func):
    +3700    pass
     
    @@ -37561,8 +37817,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3685class LogicalOr(AggFunc):
    -3686    _sql_names = ["LOGICAL_OR", "BOOL_OR", "BOOLOR_AGG"]
    +            
    3703class LogicalOr(AggFunc):
    +3704    _sql_names = ["LOGICAL_OR", "BOOL_OR", "BOOLOR_AGG"]
     
    @@ -37638,8 +37894,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3689class LogicalAnd(AggFunc):
    -3690    _sql_names = ["LOGICAL_AND", "BOOL_AND", "BOOLAND_AGG"]
    +            
    3707class LogicalAnd(AggFunc):
    +3708    _sql_names = ["LOGICAL_AND", "BOOL_AND", "BOOLAND_AGG"]
     
    @@ -37715,8 +37971,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3693class Lower(Func):
    -3694    _sql_names = ["LOWER", "LCASE"]
    +            
    3711class Lower(Func):
    +3712    _sql_names = ["LOWER", "LCASE"]
     
    @@ -37792,8 +38048,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3697class Map(Func):
    -3698    arg_types = {"keys": False, "values": False}
    +            
    3715class Map(Func):
    +3716    arg_types = {"keys": False, "values": False}
     
    @@ -37869,9 +38125,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3701class VarMap(Func):
    -3702    arg_types = {"keys": True, "values": True}
    -3703    is_var_len_args = True
    +            
    3719class VarMap(Func):
    +3720    arg_types = {"keys": True, "values": True}
    +3721    is_var_len_args = True
     
    @@ -37936,88 +38192,78 @@ name is set to the expression's class name transformed to snake case.
    -
    - +
    +
    class - Matches(Func): + MatchAgainst(Func): - +
    - -
    3706class Matches(Func):
    -3707    """Oracle/Snowflake decode.
    -3708    https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm
    -3709    Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)
    -3710    """
    -3711
    -3712    arg_types = {"this": True, "expressions": True}
    -3713    is_var_len_args = True
    +    
    +            
    3725class MatchAgainst(Func):
    +3726    arg_types = {"this": True, "expressions": True, "modifier": False}
     
    -

    Oracle/Snowflake decode. -https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm -Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    - + -
    3716class Max(AggFunc):
    -3717    arg_types = {"this": True, "expressions": False}
    -3718    is_var_len_args = True
    +            
    3729class Max(AggFunc):
    +3730    arg_types = {"this": True, "expressions": False}
    +3731    is_var_len_args = True
     
    @@ -38112,9 +38358,9 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3721class Min(AggFunc):
    -3722    arg_types = {"this": True, "expressions": False}
    -3723    is_var_len_args = True
    +            
    3734class Min(AggFunc):
    +3735    arg_types = {"this": True, "expressions": False}
    +3736    is_var_len_args = True
     
    @@ -38190,8 +38436,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3726class Month(Func):
    -3727    pass
    +            
    3739class Month(Func):
    +3740    pass
     
    @@ -38267,8 +38513,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3730class Nvl2(Func):
    -3731    arg_types = {"this": True, "true": True, "false": False}
    +            
    3743class Nvl2(Func):
    +3744    arg_types = {"this": True, "true": True, "false": False}
     
    @@ -38344,8 +38590,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3734class Posexplode(Func):
    -3735    pass
    +            
    3747class Posexplode(Func):
    +3748    pass
     
    @@ -38421,8 +38667,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3738class Pow(Binary, Func):
    -3739    _sql_names = ["POWER", "POW"]
    +            
    3751class Pow(Binary, Func):
    +3752    _sql_names = ["POWER", "POW"]
     
    @@ -38498,8 +38744,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3742class PercentileCont(AggFunc):
    -3743    pass
    +            
    3755class PercentileCont(AggFunc):
    +3756    pass
     
    @@ -38575,8 +38821,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3746class PercentileDisc(AggFunc):
    -3747    pass
    +            
    3759class PercentileDisc(AggFunc):
    +3760    pass
     
    @@ -38652,8 +38898,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3750class Quantile(AggFunc):
    -3751    arg_types = {"this": True, "quantile": True}
    +            
    3763class Quantile(AggFunc):
    +3764    arg_types = {"this": True, "quantile": True}
     
    @@ -38729,9 +38975,9 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3756class Quantiles(AggFunc):
    -3757    arg_types = {"parameters": True, "expressions": True}
    -3758    is_var_len_args = True
    +            
    3769class Quantiles(AggFunc):
    +3770    arg_types = {"parameters": True, "expressions": True}
    +3771    is_var_len_args = True
     
    @@ -38807,8 +39053,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3761class QuantileIf(AggFunc):
    -3762    arg_types = {"parameters": True, "expressions": True}
    +            
    3774class QuantileIf(AggFunc):
    +3775    arg_types = {"parameters": True, "expressions": True}
     
    @@ -38884,8 +39130,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3765class ApproxQuantile(Quantile):
    -3766    arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False}
    +            
    3778class ApproxQuantile(Quantile):
    +3779    arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False}
     
    @@ -38961,8 +39207,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3769class RangeN(Func):
    -3770    arg_types = {"this": True, "expressions": True, "each": False}
    +            
    3782class RangeN(Func):
    +3783    arg_types = {"this": True, "expressions": True, "each": False}
     
    @@ -39038,10 +39284,10 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3773class ReadCSV(Func):
    -3774    _sql_names = ["READ_CSV"]
    -3775    is_var_len_args = True
    -3776    arg_types = {"this": True, "expressions": False}
    +            
    3786class ReadCSV(Func):
    +3787    _sql_names = ["READ_CSV"]
    +3788    is_var_len_args = True
    +3789    arg_types = {"this": True, "expressions": False}
     
    @@ -39117,8 +39363,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3779class Reduce(Func):
    -3780    arg_types = {"this": True, "initial": True, "merge": True, "finish": False}
    +            
    3792class Reduce(Func):
    +3793    arg_types = {"this": True, "initial": True, "merge": True, "finish": False}
     
    @@ -39194,14 +39440,14 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3783class RegexpExtract(Func):
    -3784    arg_types = {
    -3785        "this": True,
    -3786        "expression": True,
    -3787        "position": False,
    -3788        "occurrence": False,
    -3789        "group": False,
    -3790    }
    +            
    3796class RegexpExtract(Func):
    +3797    arg_types = {
    +3798        "this": True,
    +3799        "expression": True,
    +3800        "position": False,
    +3801        "occurrence": False,
    +3802        "group": False,
    +3803    }
     
    @@ -39277,8 +39523,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3793class RegexpLike(Func):
    -3794    arg_types = {"this": True, "expression": True, "flag": False}
    +            
    3806class RegexpLike(Func):
    +3807    arg_types = {"this": True, "expression": True, "flag": False}
     
    @@ -39354,8 +39600,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3797class RegexpILike(Func):
    -3798    arg_types = {"this": True, "expression": True, "flag": False}
    +            
    3810class RegexpILike(Func):
    +3811    arg_types = {"this": True, "expression": True, "flag": False}
     
    @@ -39431,8 +39677,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3801class RegexpSplit(Func):
    -3802    arg_types = {"this": True, "expression": True}
    +            
    3816class RegexpSplit(Func):
    +3817    arg_types = {"this": True, "expression": True, "limit": False}
     
    @@ -39508,8 +39754,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3805class Repeat(Func):
    -3806    arg_types = {"this": True, "times": True}
    +            
    3820class Repeat(Func):
    +3821    arg_types = {"this": True, "times": True}
     
    @@ -39585,8 +39831,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3809class Round(Func):
    -3810    arg_types = {"this": True, "decimals": False}
    +            
    3824class Round(Func):
    +3825    arg_types = {"this": True, "decimals": False}
     
    @@ -39662,8 +39908,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3813class RowNumber(Func):
    -3814    arg_types: t.Dict[str, t.Any] = {}
    +            
    3828class RowNumber(Func):
    +3829    arg_types: t.Dict[str, t.Any] = {}
     
    @@ -39739,8 +39985,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3817class SafeDivide(Func):
    -3818    arg_types = {"this": True, "expression": True}
    +            
    3832class SafeDivide(Func):
    +3833    arg_types = {"this": True, "expression": True}
     
    @@ -39816,8 +40062,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3821class SetAgg(AggFunc):
    -3822    pass
    +            
    3836class SetAgg(AggFunc):
    +3837    pass
     
    @@ -39893,8 +40139,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3825class SortArray(Func):
    -3826    arg_types = {"this": True, "asc": False}
    +            
    3840class SortArray(Func):
    +3841    arg_types = {"this": True, "asc": False}
     
    @@ -39970,8 +40216,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3829class Split(Func):
    -3830    arg_types = {"this": True, "expression": True, "limit": False}
    +            
    3844class Split(Func):
    +3845    arg_types = {"this": True, "expression": True, "limit": False}
     
    @@ -40047,8 +40293,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3835class Substring(Func):
    -3836    arg_types = {"this": True, "start": False, "length": False}
    +            
    3850class Substring(Func):
    +3851    arg_types = {"this": True, "start": False, "length": False}
     
    @@ -40124,13 +40370,13 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3839class StrPosition(Func):
    -3840    arg_types = {
    -3841        "this": True,
    -3842        "substr": True,
    -3843        "position": False,
    -3844        "instance": False,
    -3845    }
    +            
    3854class StrPosition(Func):
    +3855    arg_types = {
    +3856        "this": True,
    +3857        "substr": True,
    +3858        "position": False,
    +3859        "instance": False,
    +3860    }
     
    @@ -40206,8 +40452,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3848class StrToDate(Func):
    -3849    arg_types = {"this": True, "format": True}
    +            
    3863class StrToDate(Func):
    +3864    arg_types = {"this": True, "format": True}
     
    @@ -40283,8 +40529,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3852class StrToTime(Func):
    -3853    arg_types = {"this": True, "format": True}
    +            
    3867class StrToTime(Func):
    +3868    arg_types = {"this": True, "format": True}
     
    @@ -40360,8 +40606,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3858class StrToUnix(Func):
    -3859    arg_types = {"this": False, "format": False}
    +            
    3873class StrToUnix(Func):
    +3874    arg_types = {"this": False, "format": False}
     
    @@ -40437,8 +40683,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3862class NumberToStr(Func):
    -3863    arg_types = {"this": True, "format": True}
    +            
    3877class NumberToStr(Func):
    +3878    arg_types = {"this": True, "format": True}
     
    @@ -40514,9 +40760,9 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3866class Struct(Func):
    -3867    arg_types = {"expressions": True}
    -3868    is_var_len_args = True
    +            
    3881class Struct(Func):
    +3882    arg_types = {"expressions": True}
    +3883    is_var_len_args = True
     
    @@ -40592,8 +40838,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3871class StructExtract(Func):
    -3872    arg_types = {"this": True, "expression": True}
    +            
    3886class StructExtract(Func):
    +3887    arg_types = {"this": True, "expression": True}
     
    @@ -40669,8 +40915,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3875class Sum(AggFunc):
    -3876    pass
    +            
    3890class Sum(AggFunc):
    +3891    pass
     
    @@ -40746,8 +40992,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3879class Sqrt(Func):
    -3880    pass
    +            
    3894class Sqrt(Func):
    +3895    pass
     
    @@ -40823,8 +41069,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3883class Stddev(AggFunc):
    -3884    pass
    +            
    3898class Stddev(AggFunc):
    +3899    pass
     
    @@ -40900,8 +41146,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3887class StddevPop(AggFunc):
    -3888    pass
    +            
    3902class StddevPop(AggFunc):
    +3903    pass
     
    @@ -40977,8 +41223,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3891class StddevSamp(AggFunc):
    -3892    pass
    +            
    3906class StddevSamp(AggFunc):
    +3907    pass
     
    @@ -41054,8 +41300,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3895class TimeToStr(Func):
    -3896    arg_types = {"this": True, "format": True}
    +            
    3910class TimeToStr(Func):
    +3911    arg_types = {"this": True, "format": True}
     
    @@ -41131,8 +41377,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3899class TimeToTimeStr(Func):
    -3900    pass
    +            
    3914class TimeToTimeStr(Func):
    +3915    pass
     
    @@ -41208,8 +41454,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3903class TimeToUnix(Func):
    -3904    pass
    +            
    3918class TimeToUnix(Func):
    +3919    pass
     
    @@ -41285,8 +41531,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3907class TimeStrToDate(Func):
    -3908    pass
    +            
    3922class TimeStrToDate(Func):
    +3923    pass
     
    @@ -41362,8 +41608,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3911class TimeStrToTime(Func):
    -3912    pass
    +            
    3926class TimeStrToTime(Func):
    +3927    pass
     
    @@ -41439,8 +41685,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3915class TimeStrToUnix(Func):
    -3916    pass
    +            
    3930class TimeStrToUnix(Func):
    +3931    pass
     
    @@ -41516,13 +41762,13 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3919class Trim(Func):
    -3920    arg_types = {
    -3921        "this": True,
    -3922        "expression": False,
    -3923        "position": False,
    -3924        "collation": False,
    -3925    }
    +            
    3934class Trim(Func):
    +3935    arg_types = {
    +3936        "this": True,
    +3937        "expression": False,
    +3938        "position": False,
    +3939        "collation": False,
    +3940    }
     
    @@ -41598,8 +41844,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3928class TsOrDsAdd(Func, TimeUnit):
    -3929    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3943class TsOrDsAdd(Func, TimeUnit):
    +3944    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -41678,8 +41924,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3932class TsOrDsToDateStr(Func):
    -3933    pass
    +            
    3947class TsOrDsToDateStr(Func):
    +3948    pass
     
    @@ -41755,8 +42001,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3936class TsOrDsToDate(Func):
    -3937    arg_types = {"this": True, "format": False}
    +            
    3951class TsOrDsToDate(Func):
    +3952    arg_types = {"this": True, "format": False}
     
    @@ -41832,8 +42078,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3940class TsOrDiToDi(Func):
    -3941    pass
    +            
    3955class TsOrDiToDi(Func):
    +3956    pass
     
    @@ -41909,8 +42155,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3944class Unhex(Func):
    -3945    pass
    +            
    3959class Unhex(Func):
    +3960    pass
     
    @@ -41986,8 +42232,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3948class UnixToStr(Func):
    -3949    arg_types = {"this": True, "format": False}
    +            
    3963class UnixToStr(Func):
    +3964    arg_types = {"this": True, "format": False}
     
    @@ -42063,12 +42309,12 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3954class UnixToTime(Func):
    -3955    arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False}
    -3956
    -3957    SECONDS = Literal.string("seconds")
    -3958    MILLIS = Literal.string("millis")
    -3959    MICROS = Literal.string("micros")
    +            
    3969class UnixToTime(Func):
    +3970    arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False}
    +3971
    +3972    SECONDS = Literal.string("seconds")
    +3973    MILLIS = Literal.string("millis")
    +3974    MICROS = Literal.string("micros")
     
    @@ -42144,8 +42390,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3962class UnixToTimeStr(Func):
    -3963    pass
    +            
    3977class UnixToTimeStr(Func):
    +3978    pass
     
    @@ -42221,8 +42467,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3966class Upper(Func):
    -3967    _sql_names = ["UPPER", "UCASE"]
    +            
    3981class Upper(Func):
    +3982    _sql_names = ["UPPER", "UCASE"]
     
    @@ -42298,8 +42544,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3970class Variance(AggFunc):
    -3971    _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"]
    +            
    3985class Variance(AggFunc):
    +3986    _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"]
     
    @@ -42375,8 +42621,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3974class VariancePop(AggFunc):
    -3975    _sql_names = ["VARIANCE_POP", "VAR_POP"]
    +            
    3989class VariancePop(AggFunc):
    +3990    _sql_names = ["VARIANCE_POP", "VAR_POP"]
     
    @@ -42452,8 +42698,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3978class Week(Func):
    -3979    arg_types = {"this": True, "mode": False}
    +            
    3993class Week(Func):
    +3994    arg_types = {"this": True, "mode": False}
     
    @@ -42529,8 +42775,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3982class XMLTable(Func):
    -3983    arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False}
    +            
    3997class XMLTable(Func):
    +3998    arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False}
     
    @@ -42606,8 +42852,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3986class Year(Func):
    -3987    pass
    +            
    4001class Year(Func):
    +4002    pass
     
    @@ -42683,8 +42929,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3990class Use(Expression):
    -3991    arg_types = {"this": True, "kind": False}
    +            
    4005class Use(Expression):
    +4006    arg_types = {"this": True, "kind": False}
     
    @@ -42747,8 +42993,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3994class Merge(Expression):
    -3995    arg_types = {"this": True, "using": True, "on": True, "expressions": True}
    +            
    4009class Merge(Expression):
    +4010    arg_types = {"this": True, "using": True, "on": True, "expressions": True}
     
    @@ -42811,8 +43057,8 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    3998class When(Func):
    -3999    arg_types = {"matched": True, "source": False, "condition": False, "then": True}
    +            
    4013class When(Func):
    +4014    arg_types = {"matched": True, "source": False, "condition": False, "then": True}
     
    @@ -42888,48 +43134,48 @@ Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else)

    -
    4010def maybe_parse(
    -4011    sql_or_expression: ExpOrStr,
    -4012    *,
    -4013    into: t.Optional[IntoType] = None,
    -4014    dialect: DialectType = None,
    -4015    prefix: t.Optional[str] = None,
    -4016    copy: bool = False,
    -4017    **opts,
    -4018) -> Expression:
    -4019    """Gracefully handle a possible string or expression.
    -4020
    -4021    Example:
    -4022        >>> maybe_parse("1")
    -4023        (LITERAL this: 1, is_string: False)
    -4024        >>> maybe_parse(to_identifier("x"))
    -4025        (IDENTIFIER this: x, quoted: False)
    -4026
    -4027    Args:
    -4028        sql_or_expression: the SQL code string or an expression
    -4029        into: the SQLGlot Expression to parse into
    -4030        dialect: the dialect used to parse the input expressions (in the case that an
    -4031            input expression is a SQL string).
    -4032        prefix: a string to prefix the sql with before it gets parsed
    -4033            (automatically includes a space)
    -4034        copy: whether or not to copy the expression.
    -4035        **opts: other options to use to parse the input expressions (again, in the case
    -4036            that an input expression is a SQL string).
    -4037
    -4038    Returns:
    -4039        Expression: the parsed or given expression.
    -4040    """
    -4041    if isinstance(sql_or_expression, Expression):
    -4042        if copy:
    -4043            return sql_or_expression.copy()
    -4044        return sql_or_expression
    -4045
    -4046    import sqlglot
    -4047
    -4048    sql = str(sql_or_expression)
    -4049    if prefix:
    -4050        sql = f"{prefix} {sql}"
    -4051    return sqlglot.parse_one(sql, read=dialect, into=into, **opts)
    +            
    4025def maybe_parse(
    +4026    sql_or_expression: ExpOrStr,
    +4027    *,
    +4028    into: t.Optional[IntoType] = None,
    +4029    dialect: DialectType = None,
    +4030    prefix: t.Optional[str] = None,
    +4031    copy: bool = False,
    +4032    **opts,
    +4033) -> Expression:
    +4034    """Gracefully handle a possible string or expression.
    +4035
    +4036    Example:
    +4037        >>> maybe_parse("1")
    +4038        (LITERAL this: 1, is_string: False)
    +4039        >>> maybe_parse(to_identifier("x"))
    +4040        (IDENTIFIER this: x, quoted: False)
    +4041
    +4042    Args:
    +4043        sql_or_expression: the SQL code string or an expression
    +4044        into: the SQLGlot Expression to parse into
    +4045        dialect: the dialect used to parse the input expressions (in the case that an
    +4046            input expression is a SQL string).
    +4047        prefix: a string to prefix the sql with before it gets parsed
    +4048            (automatically includes a space)
    +4049        copy: whether or not to copy the expression.
    +4050        **opts: other options to use to parse the input expressions (again, in the case
    +4051            that an input expression is a SQL string).
    +4052
    +4053    Returns:
    +4054        Expression: the parsed or given expression.
    +4055    """
    +4056    if isinstance(sql_or_expression, Expression):
    +4057        if copy:
    +4058            return sql_or_expression.copy()
    +4059        return sql_or_expression
    +4060
    +4061    import sqlglot
    +4062
    +4063    sql = str(sql_or_expression)
    +4064    if prefix:
    +4065        sql = f"{prefix} {sql}"
    +4066    return sqlglot.parse_one(sql, read=dialect, into=into, **opts)
     
    @@ -42981,29 +43227,29 @@ that an input expression is a SQL string).
    -
    4197def union(left, right, distinct=True, dialect=None, **opts):
    -4198    """
    -4199    Initializes a syntax tree from one UNION expression.
    -4200
    -4201    Example:
    -4202        >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()
    -4203        'SELECT * FROM foo UNION SELECT * FROM bla'
    -4204
    -4205    Args:
    -4206        left (str | Expression): the SQL code string corresponding to the left-hand side.
    -4207            If an `Expression` instance is passed, it will be used as-is.
    -4208        right (str | Expression): the SQL code string corresponding to the right-hand side.
    -4209            If an `Expression` instance is passed, it will be used as-is.
    -4210        distinct (bool): set the DISTINCT flag if and only if this is true.
    -4211        dialect (str): the dialect used to parse the input expression.
    -4212        opts (kwargs): other options to use to parse the input expressions.
    -4213    Returns:
    -4214        Union: the syntax tree for the UNION expression.
    -4215    """
    -4216    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    -4217    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    -4218
    -4219    return Union(this=left, expression=right, distinct=distinct)
    +            
    4212def union(left, right, distinct=True, dialect=None, **opts):
    +4213    """
    +4214    Initializes a syntax tree from one UNION expression.
    +4215
    +4216    Example:
    +4217        >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4218        'SELECT * FROM foo UNION SELECT * FROM bla'
    +4219
    +4220    Args:
    +4221        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4222            If an `Expression` instance is passed, it will be used as-is.
    +4223        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4224            If an `Expression` instance is passed, it will be used as-is.
    +4225        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4226        dialect (str): the dialect used to parse the input expression.
    +4227        opts (kwargs): other options to use to parse the input expressions.
    +4228    Returns:
    +4229        Union: the syntax tree for the UNION expression.
    +4230    """
    +4231    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4232    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4233
    +4234    return Union(this=left, expression=right, distinct=distinct)
     
    @@ -43051,29 +43297,29 @@ If an Expression instance is passed, it w
    -
    4222def intersect(left, right, distinct=True, dialect=None, **opts):
    -4223    """
    -4224    Initializes a syntax tree from one INTERSECT expression.
    -4225
    -4226    Example:
    -4227        >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()
    -4228        'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    -4229
    -4230    Args:
    -4231        left (str | Expression): the SQL code string corresponding to the left-hand side.
    -4232            If an `Expression` instance is passed, it will be used as-is.
    -4233        right (str | Expression): the SQL code string corresponding to the right-hand side.
    -4234            If an `Expression` instance is passed, it will be used as-is.
    -4235        distinct (bool): set the DISTINCT flag if and only if this is true.
    -4236        dialect (str): the dialect used to parse the input expression.
    -4237        opts (kwargs): other options to use to parse the input expressions.
    -4238    Returns:
    -4239        Intersect: the syntax tree for the INTERSECT expression.
    -4240    """
    -4241    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    -4242    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    -4243
    -4244    return Intersect(this=left, expression=right, distinct=distinct)
    +            
    4237def intersect(left, right, distinct=True, dialect=None, **opts):
    +4238    """
    +4239    Initializes a syntax tree from one INTERSECT expression.
    +4240
    +4241    Example:
    +4242        >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4243        'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    +4244
    +4245    Args:
    +4246        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4247            If an `Expression` instance is passed, it will be used as-is.
    +4248        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4249            If an `Expression` instance is passed, it will be used as-is.
    +4250        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4251        dialect (str): the dialect used to parse the input expression.
    +4252        opts (kwargs): other options to use to parse the input expressions.
    +4253    Returns:
    +4254        Intersect: the syntax tree for the INTERSECT expression.
    +4255    """
    +4256    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4257    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4258
    +4259    return Intersect(this=left, expression=right, distinct=distinct)
     
    @@ -43121,29 +43367,29 @@ If an Expression instance is passed, it w
    -
    4247def except_(left, right, distinct=True, dialect=None, **opts):
    -4248    """
    -4249    Initializes a syntax tree from one EXCEPT expression.
    -4250
    -4251    Example:
    -4252        >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()
    -4253        'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    -4254
    -4255    Args:
    -4256        left (str | Expression): the SQL code string corresponding to the left-hand side.
    -4257            If an `Expression` instance is passed, it will be used as-is.
    -4258        right (str | Expression): the SQL code string corresponding to the right-hand side.
    -4259            If an `Expression` instance is passed, it will be used as-is.
    -4260        distinct (bool): set the DISTINCT flag if and only if this is true.
    -4261        dialect (str): the dialect used to parse the input expression.
    -4262        opts (kwargs): other options to use to parse the input expressions.
    -4263    Returns:
    -4264        Except: the syntax tree for the EXCEPT statement.
    -4265    """
    -4266    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    -4267    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    -4268
    -4269    return Except(this=left, expression=right, distinct=distinct)
    +            
    4262def except_(left, right, distinct=True, dialect=None, **opts):
    +4263    """
    +4264    Initializes a syntax tree from one EXCEPT expression.
    +4265
    +4266    Example:
    +4267        >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4268        'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    +4269
    +4270    Args:
    +4271        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4272            If an `Expression` instance is passed, it will be used as-is.
    +4273        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4274            If an `Expression` instance is passed, it will be used as-is.
    +4275        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4276        dialect (str): the dialect used to parse the input expression.
    +4277        opts (kwargs): other options to use to parse the input expressions.
    +4278    Returns:
    +4279        Except: the syntax tree for the EXCEPT statement.
    +4280    """
    +4281    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4282    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4283
    +4284    return Except(this=left, expression=right, distinct=distinct)
     
    @@ -43191,26 +43437,26 @@ If an Expression instance is passed, it w
    -
    4272def select(*expressions: ExpOrStr, dialect: DialectType = None, **opts) -> Select:
    -4273    """
    -4274    Initializes a syntax tree from one or multiple SELECT expressions.
    -4275
    -4276    Example:
    -4277        >>> select("col1", "col2").from_("tbl").sql()
    -4278        'SELECT col1, col2 FROM tbl'
    -4279
    -4280    Args:
    -4281        *expressions: the SQL code string to parse as the expressions of a
    -4282            SELECT statement. If an Expression instance is passed, this is used as-is.
    -4283        dialect: the dialect used to parse the input expressions (in the case that an
    -4284            input expression is a SQL string).
    -4285        **opts: other options to use to parse the input expressions (again, in the case
    -4286            that an input expression is a SQL string).
    -4287
    -4288    Returns:
    -4289        Select: the syntax tree for the SELECT statement.
    -4290    """
    -4291    return Select().select(*expressions, dialect=dialect, **opts)
    +            
    4287def select(*expressions: ExpOrStr, dialect: DialectType = None, **opts) -> Select:
    +4288    """
    +4289    Initializes a syntax tree from one or multiple SELECT expressions.
    +4290
    +4291    Example:
    +4292        >>> select("col1", "col2").from_("tbl").sql()
    +4293        'SELECT col1, col2 FROM tbl'
    +4294
    +4295    Args:
    +4296        *expressions: the SQL code string to parse as the expressions of a
    +4297            SELECT statement. If an Expression instance is passed, this is used as-is.
    +4298        dialect: the dialect used to parse the input expressions (in the case that an
    +4299            input expression is a SQL string).
    +4300        **opts: other options to use to parse the input expressions (again, in the case
    +4301            that an input expression is a SQL string).
    +4302
    +4303    Returns:
    +4304        Select: the syntax tree for the SELECT statement.
    +4305    """
    +4306    return Select().select(*expressions, dialect=dialect, **opts)
     
    @@ -43257,26 +43503,26 @@ that an input expression is a SQL string).
    -
    4294def from_(*expressions, dialect=None, **opts) -> Select:
    -4295    """
    -4296    Initializes a syntax tree from a FROM expression.
    -4297
    -4298    Example:
    -4299        >>> from_("tbl").select("col1", "col2").sql()
    -4300        'SELECT col1, col2 FROM tbl'
    -4301
    -4302    Args:
    -4303        *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a
    -4304            SELECT statement. If an Expression instance is passed, this is used as-is.
    -4305        dialect (str): the dialect used to parse the input expression (in the case that the
    -4306            input expression is a SQL string).
    -4307        **opts: other options to use to parse the input expressions (again, in the case
    -4308            that the input expression is a SQL string).
    -4309
    -4310    Returns:
    -4311        Select: the syntax tree for the SELECT statement.
    -4312    """
    -4313    return Select().from_(*expressions, dialect=dialect, **opts)
    +            
    4309def from_(*expressions, dialect=None, **opts) -> Select:
    +4310    """
    +4311    Initializes a syntax tree from a FROM expression.
    +4312
    +4313    Example:
    +4314        >>> from_("tbl").select("col1", "col2").sql()
    +4315        'SELECT col1, col2 FROM tbl'
    +4316
    +4317    Args:
    +4318        *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a
    +4319            SELECT statement. If an Expression instance is passed, this is used as-is.
    +4320        dialect (str): the dialect used to parse the input expression (in the case that the
    +4321            input expression is a SQL string).
    +4322        **opts: other options to use to parse the input expressions (again, in the case
    +4323            that the input expression is a SQL string).
    +4324
    +4325    Returns:
    +4326        Select: the syntax tree for the SELECT statement.
    +4327    """
    +4328    return Select().from_(*expressions, dialect=dialect, **opts)
     
    @@ -43323,53 +43569,53 @@ that the input expression is a SQL string).
    -
    4316def update(
    -4317    table: str | Table,
    -4318    properties: dict,
    -4319    where: t.Optional[ExpOrStr] = None,
    -4320    from_: t.Optional[ExpOrStr] = None,
    -4321    dialect: DialectType = None,
    -4322    **opts,
    -4323) -> Update:
    -4324    """
    -4325    Creates an update statement.
    -4326
    -4327    Example:
    -4328        >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()
    -4329        "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"
    -4330
    -4331    Args:
    -4332        *properties: dictionary of properties to set which are
    -4333            auto converted to sql objects eg None -> NULL
    -4334        where: sql conditional parsed into a WHERE statement
    -4335        from_: sql statement parsed into a FROM statement
    -4336        dialect: the dialect used to parse the input expressions.
    -4337        **opts: other options to use to parse the input expressions.
    -4338
    -4339    Returns:
    -4340        Update: the syntax tree for the UPDATE statement.
    -4341    """
    -4342    update_expr = Update(this=maybe_parse(table, into=Table, dialect=dialect))
    -4343    update_expr.set(
    -4344        "expressions",
    -4345        [
    -4346            EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v))
    -4347            for k, v in properties.items()
    -4348        ],
    -4349    )
    -4350    if from_:
    -4351        update_expr.set(
    -4352            "from",
    -4353            maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts),
    -4354        )
    -4355    if isinstance(where, Condition):
    -4356        where = Where(this=where)
    -4357    if where:
    -4358        update_expr.set(
    -4359            "where",
    -4360            maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    -4361        )
    -4362    return update_expr
    +            
    4331def update(
    +4332    table: str | Table,
    +4333    properties: dict,
    +4334    where: t.Optional[ExpOrStr] = None,
    +4335    from_: t.Optional[ExpOrStr] = None,
    +4336    dialect: DialectType = None,
    +4337    **opts,
    +4338) -> Update:
    +4339    """
    +4340    Creates an update statement.
    +4341
    +4342    Example:
    +4343        >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()
    +4344        "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"
    +4345
    +4346    Args:
    +4347        *properties: dictionary of properties to set which are
    +4348            auto converted to sql objects eg None -> NULL
    +4349        where: sql conditional parsed into a WHERE statement
    +4350        from_: sql statement parsed into a FROM statement
    +4351        dialect: the dialect used to parse the input expressions.
    +4352        **opts: other options to use to parse the input expressions.
    +4353
    +4354    Returns:
    +4355        Update: the syntax tree for the UPDATE statement.
    +4356    """
    +4357    update_expr = Update(this=maybe_parse(table, into=Table, dialect=dialect))
    +4358    update_expr.set(
    +4359        "expressions",
    +4360        [
    +4361            EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v))
    +4362            for k, v in properties.items()
    +4363        ],
    +4364    )
    +4365    if from_:
    +4366        update_expr.set(
    +4367            "from",
    +4368            maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts),
    +4369        )
    +4370    if isinstance(where, Condition):
    +4371        where = Where(this=where)
    +4372    if where:
    +4373        update_expr.set(
    +4374            "where",
    +4375            maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    +4376        )
    +4377    return update_expr
     
    @@ -43416,35 +43662,35 @@ auto converted to sql objects eg None -> NULL
    -
    4365def delete(
    -4366    table: ExpOrStr,
    -4367    where: t.Optional[ExpOrStr] = None,
    -4368    returning: t.Optional[ExpOrStr] = None,
    -4369    dialect: DialectType = None,
    -4370    **opts,
    -4371) -> Delete:
    -4372    """
    -4373    Builds a delete statement.
    -4374
    -4375    Example:
    -4376        >>> delete("my_table", where="id > 1").sql()
    -4377        'DELETE FROM my_table WHERE id > 1'
    -4378
    -4379    Args:
    -4380        where: sql conditional parsed into a WHERE statement
    -4381        returning: sql conditional parsed into a RETURNING statement
    -4382        dialect: the dialect used to parse the input expressions.
    -4383        **opts: other options to use to parse the input expressions.
    -4384
    -4385    Returns:
    -4386        Delete: the syntax tree for the DELETE statement.
    -4387    """
    -4388    delete_expr = Delete().delete(table, dialect=dialect, copy=False, **opts)
    -4389    if where:
    -4390        delete_expr = delete_expr.where(where, dialect=dialect, copy=False, **opts)
    -4391    if returning:
    -4392        delete_expr = delete_expr.returning(returning, dialect=dialect, copy=False, **opts)
    -4393    return delete_expr
    +            
    4380def delete(
    +4381    table: ExpOrStr,
    +4382    where: t.Optional[ExpOrStr] = None,
    +4383    returning: t.Optional[ExpOrStr] = None,
    +4384    dialect: DialectType = None,
    +4385    **opts,
    +4386) -> Delete:
    +4387    """
    +4388    Builds a delete statement.
    +4389
    +4390    Example:
    +4391        >>> delete("my_table", where="id > 1").sql()
    +4392        'DELETE FROM my_table WHERE id > 1'
    +4393
    +4394    Args:
    +4395        where: sql conditional parsed into a WHERE statement
    +4396        returning: sql conditional parsed into a RETURNING statement
    +4397        dialect: the dialect used to parse the input expressions.
    +4398        **opts: other options to use to parse the input expressions.
    +4399
    +4400    Returns:
    +4401        Delete: the syntax tree for the DELETE statement.
    +4402    """
    +4403    delete_expr = Delete().delete(table, dialect=dialect, copy=False, **opts)
    +4404    if where:
    +4405        delete_expr = delete_expr.where(where, dialect=dialect, copy=False, **opts)
    +4406    if returning:
    +4407        delete_expr = delete_expr.returning(returning, dialect=dialect, copy=False, **opts)
    +4408    return delete_expr
     
    @@ -43489,37 +43735,37 @@ auto converted to sql objects eg None -> NULL
    -
    4396def condition(expression, dialect=None, **opts) -> Condition:
    -4397    """
    -4398    Initialize a logical condition expression.
    -4399
    -4400    Example:
    -4401        >>> condition("x=1").sql()
    -4402        'x = 1'
    -4403
    -4404        This is helpful for composing larger logical syntax trees:
    -4405        >>> where = condition("x=1")
    -4406        >>> where = where.and_("y=1")
    -4407        >>> Select().from_("tbl").select("*").where(where).sql()
    -4408        'SELECT * FROM tbl WHERE x = 1 AND y = 1'
    -4409
    -4410    Args:
    -4411        *expression (str | Expression): the SQL code string to parse.
    -4412            If an Expression instance is passed, this is used as-is.
    -4413        dialect (str): the dialect used to parse the input expression (in the case that the
    -4414            input expression is a SQL string).
    -4415        **opts: other options to use to parse the input expressions (again, in the case
    -4416            that the input expression is a SQL string).
    -4417
    -4418    Returns:
    -4419        Condition: the expression
    -4420    """
    -4421    return maybe_parse(  # type: ignore
    -4422        expression,
    -4423        into=Condition,
    -4424        dialect=dialect,
    -4425        **opts,
    -4426    )
    +            
    4411def condition(expression, dialect=None, **opts) -> Condition:
    +4412    """
    +4413    Initialize a logical condition expression.
    +4414
    +4415    Example:
    +4416        >>> condition("x=1").sql()
    +4417        'x = 1'
    +4418
    +4419        This is helpful for composing larger logical syntax trees:
    +4420        >>> where = condition("x=1")
    +4421        >>> where = where.and_("y=1")
    +4422        >>> Select().from_("tbl").select("*").where(where).sql()
    +4423        'SELECT * FROM tbl WHERE x = 1 AND y = 1'
    +4424
    +4425    Args:
    +4426        *expression (str | Expression): the SQL code string to parse.
    +4427            If an Expression instance is passed, this is used as-is.
    +4428        dialect (str): the dialect used to parse the input expression (in the case that the
    +4429            input expression is a SQL string).
    +4430        **opts: other options to use to parse the input expressions (again, in the case
    +4431            that the input expression is a SQL string).
    +4432
    +4433    Returns:
    +4434        Condition: the expression
    +4435    """
    +4436    return maybe_parse(  # type: ignore
    +4437        expression,
    +4438        into=Condition,
    +4439        dialect=dialect,
    +4440        **opts,
    +4441    )
     
    @@ -43576,24 +43822,24 @@ that the input expression is a SQL string).
    -
    4429def and_(*expressions, dialect=None, **opts) -> And:
    -4430    """
    -4431    Combine multiple conditions with an AND logical operator.
    -4432
    -4433    Example:
    -4434        >>> and_("x=1", and_("y=1", "z=1")).sql()
    -4435        'x = 1 AND (y = 1 AND z = 1)'
    -4436
    -4437    Args:
    -4438        *expressions (str | Expression): the SQL code strings to parse.
    -4439            If an Expression instance is passed, this is used as-is.
    -4440        dialect (str): the dialect used to parse the input expression.
    -4441        **opts: other options to use to parse the input expressions.
    -4442
    -4443    Returns:
    -4444        And: the new condition
    -4445    """
    -4446    return _combine(expressions, And, dialect, **opts)
    +            
    4444def and_(*expressions, dialect=None, **opts) -> And:
    +4445    """
    +4446    Combine multiple conditions with an AND logical operator.
    +4447
    +4448    Example:
    +4449        >>> and_("x=1", and_("y=1", "z=1")).sql()
    +4450        'x = 1 AND (y = 1 AND z = 1)'
    +4451
    +4452    Args:
    +4453        *expressions (str | Expression): the SQL code strings to parse.
    +4454            If an Expression instance is passed, this is used as-is.
    +4455        dialect (str): the dialect used to parse the input expression.
    +4456        **opts: other options to use to parse the input expressions.
    +4457
    +4458    Returns:
    +4459        And: the new condition
    +4460    """
    +4461    return _combine(expressions, And, dialect, **opts)
     
    @@ -43638,24 +43884,24 @@ If an Expression instance is passed, this is used as-is.
    -
    4449def or_(*expressions, dialect=None, **opts) -> Or:
    -4450    """
    -4451    Combine multiple conditions with an OR logical operator.
    -4452
    -4453    Example:
    -4454        >>> or_("x=1", or_("y=1", "z=1")).sql()
    -4455        'x = 1 OR (y = 1 OR z = 1)'
    -4456
    -4457    Args:
    -4458        *expressions (str | Expression): the SQL code strings to parse.
    -4459            If an Expression instance is passed, this is used as-is.
    -4460        dialect (str): the dialect used to parse the input expression.
    -4461        **opts: other options to use to parse the input expressions.
    -4462
    -4463    Returns:
    -4464        Or: the new condition
    -4465    """
    -4466    return _combine(expressions, Or, dialect, **opts)
    +            
    4464def or_(*expressions, dialect=None, **opts) -> Or:
    +4465    """
    +4466    Combine multiple conditions with an OR logical operator.
    +4467
    +4468    Example:
    +4469        >>> or_("x=1", or_("y=1", "z=1")).sql()
    +4470        'x = 1 OR (y = 1 OR z = 1)'
    +4471
    +4472    Args:
    +4473        *expressions (str | Expression): the SQL code strings to parse.
    +4474            If an Expression instance is passed, this is used as-is.
    +4475        dialect (str): the dialect used to parse the input expression.
    +4476        **opts: other options to use to parse the input expressions.
    +4477
    +4478    Returns:
    +4479        Or: the new condition
    +4480    """
    +4481    return _combine(expressions, Or, dialect, **opts)
     
    @@ -43700,29 +43946,29 @@ If an Expression instance is passed, this is used as-is.
    -
    4469def not_(expression, dialect=None, **opts) -> Not:
    -4470    """
    -4471    Wrap a condition with a NOT operator.
    -4472
    -4473    Example:
    -4474        >>> not_("this_suit='black'").sql()
    -4475        "NOT this_suit = 'black'"
    -4476
    -4477    Args:
    -4478        expression (str | Expression): the SQL code strings to parse.
    -4479            If an Expression instance is passed, this is used as-is.
    -4480        dialect (str): the dialect used to parse the input expression.
    -4481        **opts: other options to use to parse the input expressions.
    -4482
    -4483    Returns:
    -4484        Not: the new condition
    -4485    """
    -4486    this = condition(
    -4487        expression,
    -4488        dialect=dialect,
    -4489        **opts,
    -4490    )
    -4491    return Not(this=_wrap_operator(this))
    +            
    4484def not_(expression, dialect=None, **opts) -> Not:
    +4485    """
    +4486    Wrap a condition with a NOT operator.
    +4487
    +4488    Example:
    +4489        >>> not_("this_suit='black'").sql()
    +4490        "NOT this_suit = 'black'"
    +4491
    +4492    Args:
    +4493        expression (str | Expression): the SQL code strings to parse.
    +4494            If an Expression instance is passed, this is used as-is.
    +4495        dialect (str): the dialect used to parse the input expression.
    +4496        **opts: other options to use to parse the input expressions.
    +4497
    +4498    Returns:
    +4499        Not: the new condition
    +4500    """
    +4501    this = condition(
    +4502        expression,
    +4503        dialect=dialect,
    +4504        **opts,
    +4505    )
    +4506    return Not(this=_wrap_operator(this))
     
    @@ -43767,8 +44013,8 @@ If an Expression instance is passed, this is used as-is.
    -
    4494def paren(expression) -> Paren:
    -4495    return Paren(this=expression)
    +            
    4509def paren(expression) -> Paren:
    +4510    return Paren(this=expression)
     
    @@ -43786,30 +44032,30 @@ If an Expression instance is passed, this is used as-is.
    -
    4511def to_identifier(name, quoted=None):
    -4512    """Builds an identifier.
    -4513
    -4514    Args:
    -4515        name: The name to turn into an identifier.
    -4516        quoted: Whether or not force quote the identifier.
    -4517
    -4518    Returns:
    -4519        The identifier ast node.
    -4520    """
    -4521
    -4522    if name is None:
    -4523        return None
    -4524
    -4525    if isinstance(name, Identifier):
    -4526        identifier = name
    -4527    elif isinstance(name, str):
    -4528        identifier = Identifier(
    -4529            this=name,
    -4530            quoted=not SAFE_IDENTIFIER_RE.match(name) if quoted is None else quoted,
    -4531        )
    -4532    else:
    -4533        raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}")
    -4534    return identifier
    +            
    4526def to_identifier(name, quoted=None):
    +4527    """Builds an identifier.
    +4528
    +4529    Args:
    +4530        name: The name to turn into an identifier.
    +4531        quoted: Whether or not force quote the identifier.
    +4532
    +4533    Returns:
    +4534        The identifier ast node.
    +4535    """
    +4536
    +4537    if name is None:
    +4538        return None
    +4539
    +4540    if isinstance(name, Identifier):
    +4541        identifier = name
    +4542    elif isinstance(name, str):
    +4543        identifier = Identifier(
    +4544            this=name,
    +4545            quoted=not SAFE_IDENTIFIER_RE.match(name) if quoted is None else quoted,
    +4546        )
    +4547    else:
    +4548        raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}")
    +4549    return identifier
     
    @@ -43842,23 +44088,23 @@ If an Expression instance is passed, this is used as-is.
    -
    4540def to_interval(interval: str | Literal) -> Interval:
    -4541    """Builds an interval expression from a string like '1 day' or '5 months'."""
    -4542    if isinstance(interval, Literal):
    -4543        if not interval.is_string:
    -4544            raise ValueError("Invalid interval string.")
    -4545
    -4546        interval = interval.this
    -4547
    -4548    interval_parts = INTERVAL_STRING_RE.match(interval)  # type: ignore
    -4549
    -4550    if not interval_parts:
    -4551        raise ValueError("Invalid interval string.")
    -4552
    -4553    return Interval(
    -4554        this=Literal.string(interval_parts.group(1)),
    -4555        unit=Var(this=interval_parts.group(2)),
    -4556    )
    +            
    4555def to_interval(interval: str | Literal) -> Interval:
    +4556    """Builds an interval expression from a string like '1 day' or '5 months'."""
    +4557    if isinstance(interval, Literal):
    +4558        if not interval.is_string:
    +4559            raise ValueError("Invalid interval string.")
    +4560
    +4561        interval = interval.this
    +4562
    +4563    interval_parts = INTERVAL_STRING_RE.match(interval)  # type: ignore
    +4564
    +4565    if not interval_parts:
    +4566        raise ValueError("Invalid interval string.")
    +4567
    +4568    return Interval(
    +4569        this=Literal.string(interval_parts.group(1)),
    +4570        unit=Var(this=interval_parts.group(2)),
    +4571    )
     
    @@ -43878,24 +44124,24 @@ If an Expression instance is passed, this is used as-is.
    -
    4569def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]:
    -4570    """
    -4571    Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional.
    -4572    If a table is passed in then that table is returned.
    -4573
    -4574    Args:
    -4575        sql_path: a `[catalog].[schema].[table]` string.
    -4576
    -4577    Returns:
    -4578        A table expression.
    -4579    """
    -4580    if sql_path is None or isinstance(sql_path, Table):
    -4581        return sql_path
    -4582    if not isinstance(sql_path, str):
    -4583        raise ValueError(f"Invalid type provided for a table: {type(sql_path)}")
    -4584
    -4585    catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3))
    -4586    return Table(this=table_name, db=db, catalog=catalog, **kwargs)
    +            
    4584def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]:
    +4585    """
    +4586    Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional.
    +4587    If a table is passed in then that table is returned.
    +4588
    +4589    Args:
    +4590        sql_path: a `[catalog].[schema].[table]` string.
    +4591
    +4592    Returns:
    +4593        A table expression.
    +4594    """
    +4595    if sql_path is None or isinstance(sql_path, Table):
    +4596        return sql_path
    +4597    if not isinstance(sql_path, str):
    +4598        raise ValueError(f"Invalid type provided for a table: {type(sql_path)}")
    +4599
    +4600    catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3))
    +4601    return Table(this=table_name, db=db, catalog=catalog, **kwargs)
     
    @@ -43928,22 +44174,22 @@ If a table is passed in then that table is returned.

    -
    4589def to_column(sql_path: str | Column, **kwargs) -> Column:
    -4590    """
    -4591    Create a column from a `[table].[column]` sql path. Schema is optional.
    -4592
    -4593    If a column is passed in then that column is returned.
    -4594
    -4595    Args:
    -4596        sql_path: `[table].[column]` string
    -4597    Returns:
    -4598        Table: A column expression
    -4599    """
    -4600    if sql_path is None or isinstance(sql_path, Column):
    -4601        return sql_path
    -4602    if not isinstance(sql_path, str):
    -4603        raise ValueError(f"Invalid type provided for column: {type(sql_path)}")
    -4604    return column(*reversed(sql_path.split(".")), **kwargs)  # type: ignore
    +            
    4604def to_column(sql_path: str | Column, **kwargs) -> Column:
    +4605    """
    +4606    Create a column from a `[table].[column]` sql path. Schema is optional.
    +4607
    +4608    If a column is passed in then that column is returned.
    +4609
    +4610    Args:
    +4611        sql_path: `[table].[column]` string
    +4612    Returns:
    +4613        Table: A column expression
    +4614    """
    +4615    if sql_path is None or isinstance(sql_path, Column):
    +4616        return sql_path
    +4617    if not isinstance(sql_path, str):
    +4618        raise ValueError(f"Invalid type provided for column: {type(sql_path)}")
    +4619    return column(*reversed(sql_path.split(".")), **kwargs)  # type: ignore
     
    @@ -43977,60 +44223,60 @@ If a table is passed in then that table is returned.

    -
    4607def alias_(
    -4608    expression: ExpOrStr,
    -4609    alias: str | Identifier,
    -4610    table: bool | t.Sequence[str | Identifier] = False,
    -4611    quoted: t.Optional[bool] = None,
    -4612    dialect: DialectType = None,
    -4613    **opts,
    -4614):
    -4615    """Create an Alias expression.
    -4616
    -4617    Example:
    -4618        >>> alias_('foo', 'bar').sql()
    -4619        'foo AS bar'
    -4620
    -4621        >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()
    -4622        '(SELECT 1, 2) AS bar(a, b)'
    -4623
    -4624    Args:
    -4625        expression: the SQL code strings to parse.
    -4626            If an Expression instance is passed, this is used as-is.
    -4627        alias: the alias name to use. If the name has
    -4628            special characters it is quoted.
    -4629        table: Whether or not to create a table alias, can also be a list of columns.
    -4630        quoted: whether or not to quote the alias
    -4631        dialect: the dialect used to parse the input expression.
    -4632        **opts: other options to use to parse the input expressions.
    -4633
    -4634    Returns:
    -4635        Alias: the aliased expression
    -4636    """
    -4637    exp = maybe_parse(expression, dialect=dialect, **opts)
    -4638    alias = to_identifier(alias, quoted=quoted)
    -4639
    -4640    if table:
    -4641        table_alias = TableAlias(this=alias)
    -4642        exp.set("alias", table_alias)
    -4643
    -4644        if not isinstance(table, bool):
    -4645            for column in table:
    -4646                table_alias.append("columns", to_identifier(column, quoted=quoted))
    -4647
    -4648        return exp
    -4649
    -4650    # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in
    -4651    # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node
    -4652    # for the complete Window expression.
    -4653    #
    -4654    # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls
    -4655
    -4656    if "alias" in exp.arg_types and not isinstance(exp, Window):
    -4657        exp = exp.copy()
    -4658        exp.set("alias", alias)
    -4659        return exp
    -4660    return Alias(this=exp, alias=alias)
    +            
    4622def alias_(
    +4623    expression: ExpOrStr,
    +4624    alias: str | Identifier,
    +4625    table: bool | t.Sequence[str | Identifier] = False,
    +4626    quoted: t.Optional[bool] = None,
    +4627    dialect: DialectType = None,
    +4628    **opts,
    +4629):
    +4630    """Create an Alias expression.
    +4631
    +4632    Example:
    +4633        >>> alias_('foo', 'bar').sql()
    +4634        'foo AS bar'
    +4635
    +4636        >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()
    +4637        '(SELECT 1, 2) AS bar(a, b)'
    +4638
    +4639    Args:
    +4640        expression: the SQL code strings to parse.
    +4641            If an Expression instance is passed, this is used as-is.
    +4642        alias: the alias name to use. If the name has
    +4643            special characters it is quoted.
    +4644        table: Whether or not to create a table alias, can also be a list of columns.
    +4645        quoted: whether or not to quote the alias
    +4646        dialect: the dialect used to parse the input expression.
    +4647        **opts: other options to use to parse the input expressions.
    +4648
    +4649    Returns:
    +4650        Alias: the aliased expression
    +4651    """
    +4652    exp = maybe_parse(expression, dialect=dialect, **opts)
    +4653    alias = to_identifier(alias, quoted=quoted)
    +4654
    +4655    if table:
    +4656        table_alias = TableAlias(this=alias)
    +4657        exp.set("alias", table_alias)
    +4658
    +4659        if not isinstance(table, bool):
    +4660            for column in table:
    +4661                table_alias.append("columns", to_identifier(column, quoted=quoted))
    +4662
    +4663        return exp
    +4664
    +4665    # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in
    +4666    # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node
    +4667    # for the complete Window expression.
    +4668    #
    +4669    # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls
    +4670
    +4671    if "alias" in exp.arg_types and not isinstance(exp, Window):
    +4672        exp = exp.copy()
    +4673        exp.set("alias", alias)
    +4674        return exp
    +4675    return Alias(this=exp, alias=alias)
     
    @@ -44085,27 +44331,27 @@ special characters it is quoted.
    -
    4663def subquery(expression, alias=None, dialect=None, **opts):
    -4664    """
    -4665    Build a subquery expression.
    -4666
    -4667    Example:
    -4668        >>> subquery('select x from tbl', 'bar').select('x').sql()
    -4669        'SELECT x FROM (SELECT x FROM tbl) AS bar'
    -4670
    -4671    Args:
    -4672        expression (str | Expression): the SQL code strings to parse.
    -4673            If an Expression instance is passed, this is used as-is.
    -4674        alias (str | Expression): the alias name to use.
    -4675        dialect (str): the dialect used to parse the input expression.
    -4676        **opts: other options to use to parse the input expressions.
    -4677
    -4678    Returns:
    -4679        Select: a new select with the subquery expression included
    -4680    """
    +            
    4678def subquery(expression, alias=None, dialect=None, **opts):
    +4679    """
    +4680    Build a subquery expression.
     4681
    -4682    expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias)
    -4683    return Select().from_(expression, dialect=dialect, **opts)
    +4682    Example:
    +4683        >>> subquery('select x from tbl', 'bar').select('x').sql()
    +4684        'SELECT x FROM (SELECT x FROM tbl) AS bar'
    +4685
    +4686    Args:
    +4687        expression (str | Expression): the SQL code strings to parse.
    +4688            If an Expression instance is passed, this is used as-is.
    +4689        alias (str | Expression): the alias name to use.
    +4690        dialect (str): the dialect used to parse the input expression.
    +4691        **opts: other options to use to parse the input expressions.
    +4692
    +4693    Returns:
    +4694        Select: a new select with the subquery expression included
    +4695    """
    +4696
    +4697    expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias)
    +4698    return Select().from_(expression, dialect=dialect, **opts)
     
    @@ -44151,31 +44397,31 @@ If an Expression instance is passed, this is used as-is.
    -
    4686def column(
    -4687    col: str | Identifier,
    -4688    table: t.Optional[str | Identifier] = None,
    -4689    db: t.Optional[str | Identifier] = None,
    -4690    catalog: t.Optional[str | Identifier] = None,
    -4691    quoted: t.Optional[bool] = None,
    -4692) -> Column:
    -4693    """
    -4694    Build a Column.
    -4695
    -4696    Args:
    -4697        col: column name
    -4698        table: table name
    -4699        db: db name
    -4700        catalog: catalog name
    -4701        quoted: whether or not to force quote each part
    -4702    Returns:
    -4703        Column: column instance
    -4704    """
    -4705    return Column(
    -4706        this=to_identifier(col, quoted=quoted),
    -4707        table=to_identifier(table, quoted=quoted),
    -4708        db=to_identifier(db, quoted=quoted),
    -4709        catalog=to_identifier(catalog, quoted=quoted),
    -4710    )
    +            
    4701def column(
    +4702    col: str | Identifier,
    +4703    table: t.Optional[str | Identifier] = None,
    +4704    db: t.Optional[str | Identifier] = None,
    +4705    catalog: t.Optional[str | Identifier] = None,
    +4706    quoted: t.Optional[bool] = None,
    +4707) -> Column:
    +4708    """
    +4709    Build a Column.
    +4710
    +4711    Args:
    +4712        col: column name
    +4713        table: table name
    +4714        db: db name
    +4715        catalog: catalog name
    +4716        quoted: whether or not to force quote each part
    +4717    Returns:
    +4718        Column: column instance
    +4719    """
    +4720    return Column(
    +4721        this=to_identifier(col, quoted=quoted),
    +4722        table=to_identifier(table, quoted=quoted),
    +4723        db=to_identifier(db, quoted=quoted),
    +4724        catalog=to_identifier(catalog, quoted=quoted),
    +4725    )
     
    @@ -44211,22 +44457,22 @@ If an Expression instance is passed, this is used as-is.
    -
    4713def cast(expression: ExpOrStr, to: str | DataType | DataType.Type, **opts) -> Cast:
    -4714    """Cast an expression to a data type.
    -4715
    -4716    Example:
    -4717        >>> cast('x + 1', 'int').sql()
    -4718        'CAST(x + 1 AS INT)'
    -4719
    -4720    Args:
    -4721        expression: The expression to cast.
    -4722        to: The datatype to cast to.
    -4723
    -4724    Returns:
    -4725        A cast node.
    -4726    """
    -4727    expression = maybe_parse(expression, **opts)
    -4728    return Cast(this=expression, to=DataType.build(to, **opts))
    +            
    4728def cast(expression: ExpOrStr, to: str | DataType | DataType.Type, **opts) -> Cast:
    +4729    """Cast an expression to a data type.
    +4730
    +4731    Example:
    +4732        >>> cast('x + 1', 'int').sql()
    +4733        'CAST(x + 1 AS INT)'
    +4734
    +4735    Args:
    +4736        expression: The expression to cast.
    +4737        to: The datatype to cast to.
    +4738
    +4739    Returns:
    +4740        A cast node.
    +4741    """
    +4742    expression = maybe_parse(expression, **opts)
    +4743    return Cast(this=expression, to=DataType.build(to, **opts))
     
    @@ -44269,23 +44515,23 @@ If an Expression instance is passed, this is used as-is.
    -
    4731def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table:
    -4732    """Build a Table.
    -4733
    -4734    Args:
    -4735        table (str | Expression): column name
    -4736        db (str | Expression): db name
    -4737        catalog (str | Expression): catalog name
    -4738
    -4739    Returns:
    -4740        Table: table instance
    -4741    """
    -4742    return Table(
    -4743        this=to_identifier(table, quoted=quoted),
    -4744        db=to_identifier(db, quoted=quoted),
    -4745        catalog=to_identifier(catalog, quoted=quoted),
    -4746        alias=TableAlias(this=to_identifier(alias)) if alias else None,
    -4747    )
    +            
    4746def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table:
    +4747    """Build a Table.
    +4748
    +4749    Args:
    +4750        table (str | Expression): column name
    +4751        db (str | Expression): db name
    +4752        catalog (str | Expression): catalog name
    +4753
    +4754    Returns:
    +4755        Table: table instance
    +4756    """
    +4757    return Table(
    +4758        this=to_identifier(table, quoted=quoted),
    +4759        db=to_identifier(db, quoted=quoted),
    +4760        catalog=to_identifier(catalog, quoted=quoted),
    +4761        alias=TableAlias(this=to_identifier(alias)) if alias else None,
    +4762    )
     
    @@ -44319,46 +44565,46 @@ If an Expression instance is passed, this is used as-is.
    -
    4750def values(
    -4751    values: t.Iterable[t.Tuple[t.Any, ...]],
    -4752    alias: t.Optional[str] = None,
    -4753    columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None,
    -4754) -> Values:
    -4755    """Build VALUES statement.
    -4756
    -4757    Example:
    -4758        >>> values([(1, '2')]).sql()
    -4759        "VALUES (1, '2')"
    -4760
    -4761    Args:
    -4762        values: values statements that will be converted to SQL
    -4763        alias: optional alias
    -4764        columns: Optional list of ordered column names or ordered dictionary of column names to types.
    -4765         If either are provided then an alias is also required.
    -4766         If a dictionary is provided then the first column of the values will be casted to the expected type
    -4767         in order to help with type inference.
    -4768
    -4769    Returns:
    -4770        Values: the Values expression object
    -4771    """
    -4772    if columns and not alias:
    -4773        raise ValueError("Alias is required when providing columns")
    -4774    table_alias = (
    -4775        TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns])
    -4776        if columns
    -4777        else TableAlias(this=to_identifier(alias) if alias else None)
    -4778    )
    -4779    expressions = [convert(tup) for tup in values]
    -4780    if columns and isinstance(columns, dict):
    -4781        types = list(columns.values())
    -4782        expressions[0].set(
    -4783            "expressions",
    -4784            [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)],
    -4785        )
    -4786    return Values(
    -4787        expressions=expressions,
    -4788        alias=table_alias,
    -4789    )
    +            
    4765def values(
    +4766    values: t.Iterable[t.Tuple[t.Any, ...]],
    +4767    alias: t.Optional[str] = None,
    +4768    columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None,
    +4769) -> Values:
    +4770    """Build VALUES statement.
    +4771
    +4772    Example:
    +4773        >>> values([(1, '2')]).sql()
    +4774        "VALUES (1, '2')"
    +4775
    +4776    Args:
    +4777        values: values statements that will be converted to SQL
    +4778        alias: optional alias
    +4779        columns: Optional list of ordered column names or ordered dictionary of column names to types.
    +4780         If either are provided then an alias is also required.
    +4781         If a dictionary is provided then the first column of the values will be casted to the expected type
    +4782         in order to help with type inference.
    +4783
    +4784    Returns:
    +4785        Values: the Values expression object
    +4786    """
    +4787    if columns and not alias:
    +4788        raise ValueError("Alias is required when providing columns")
    +4789    table_alias = (
    +4790        TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns])
    +4791        if columns
    +4792        else TableAlias(this=to_identifier(alias) if alias else None)
    +4793    )
    +4794    expressions = [convert(tup) for tup in values]
    +4795    if columns and isinstance(columns, dict):
    +4796        types = list(columns.values())
    +4797        expressions[0].set(
    +4798            "expressions",
    +4799            [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)],
    +4800        )
    +4801    return Values(
    +4802        expressions=expressions,
    +4803        alias=table_alias,
    +4804    )
     
    @@ -44405,28 +44651,28 @@ in order to help with type inference.
    -
    4792def var(name: t.Optional[ExpOrStr]) -> Var:
    -4793    """Build a SQL variable.
    -4794
    -4795    Example:
    -4796        >>> repr(var('x'))
    -4797        '(VAR this: x)'
    -4798
    -4799        >>> repr(var(column('x', table='y')))
    -4800        '(VAR this: x)'
    -4801
    -4802    Args:
    -4803        name: The name of the var or an expression who's name will become the var.
    -4804
    -4805    Returns:
    -4806        The new variable node.
    -4807    """
    -4808    if not name:
    -4809        raise ValueError("Cannot convert empty name into var.")
    -4810
    -4811    if isinstance(name, Expression):
    -4812        name = name.name
    -4813    return Var(this=name)
    +            
    4807def var(name: t.Optional[ExpOrStr]) -> Var:
    +4808    """Build a SQL variable.
    +4809
    +4810    Example:
    +4811        >>> repr(var('x'))
    +4812        '(VAR this: x)'
    +4813
    +4814        >>> repr(var(column('x', table='y')))
    +4815        '(VAR this: x)'
    +4816
    +4817    Args:
    +4818        name: The name of the var or an expression who's name will become the var.
    +4819
    +4820    Returns:
    +4821        The new variable node.
    +4822    """
    +4823    if not name:
    +4824        raise ValueError("Cannot convert empty name into var.")
    +4825
    +4826    if isinstance(name, Expression):
    +4827        name = name.name
    +4828    return Var(this=name)
     
    @@ -44474,24 +44720,24 @@ in order to help with type inference.
    -
    4816def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable:
    -4817    """Build ALTER TABLE... RENAME... expression
    -4818
    -4819    Args:
    -4820        old_name: The old name of the table
    -4821        new_name: The new name of the table
    -4822
    -4823    Returns:
    -4824        Alter table expression
    -4825    """
    -4826    old_table = to_table(old_name)
    -4827    new_table = to_table(new_name)
    -4828    return AlterTable(
    -4829        this=old_table,
    -4830        actions=[
    -4831            RenameTable(this=new_table),
    -4832        ],
    -4833    )
    +            
    4831def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable:
    +4832    """Build ALTER TABLE... RENAME... expression
    +4833
    +4834    Args:
    +4835        old_name: The old name of the table
    +4836        new_name: The new name of the table
    +4837
    +4838    Returns:
    +4839        Alter table expression
    +4840    """
    +4841    old_table = to_table(old_name)
    +4842    new_table = to_table(new_name)
    +4843    return AlterTable(
    +4844        this=old_table,
    +4845        actions=[
    +4846            RenameTable(this=new_table),
    +4847        ],
    +4848    )
     
    @@ -44524,47 +44770,47 @@ in order to help with type inference.
    -
    4836def convert(value) -> Expression:
    -4837    """Convert a python value into an expression object.
    -4838
    -4839    Raises an error if a conversion is not possible.
    -4840
    -4841    Args:
    -4842        value (Any): a python object
    -4843
    -4844    Returns:
    -4845        Expression: the equivalent expression object
    -4846    """
    -4847    if isinstance(value, Expression):
    -4848        return value
    -4849    if value is None:
    -4850        return NULL
    -4851    if isinstance(value, bool):
    -4852        return Boolean(this=value)
    -4853    if isinstance(value, str):
    -4854        return Literal.string(value)
    -4855    if isinstance(value, float) and math.isnan(value):
    -4856        return NULL
    -4857    if isinstance(value, numbers.Number):
    -4858        return Literal.number(value)
    -4859    if isinstance(value, tuple):
    -4860        return Tuple(expressions=[convert(v) for v in value])
    -4861    if isinstance(value, list):
    -4862        return Array(expressions=[convert(v) for v in value])
    -4863    if isinstance(value, dict):
    -4864        return Map(
    -4865            keys=[convert(k) for k in value],
    -4866            values=[convert(v) for v in value.values()],
    -4867        )
    -4868    if isinstance(value, datetime.datetime):
    -4869        datetime_literal = Literal.string(
    -4870            (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat()
    -4871        )
    -4872        return TimeStrToTime(this=datetime_literal)
    -4873    if isinstance(value, datetime.date):
    -4874        date_literal = Literal.string(value.strftime("%Y-%m-%d"))
    -4875        return DateStrToDate(this=date_literal)
    -4876    raise ValueError(f"Cannot convert {value}")
    +            
    4851def convert(value) -> Expression:
    +4852    """Convert a python value into an expression object.
    +4853
    +4854    Raises an error if a conversion is not possible.
    +4855
    +4856    Args:
    +4857        value (Any): a python object
    +4858
    +4859    Returns:
    +4860        Expression: the equivalent expression object
    +4861    """
    +4862    if isinstance(value, Expression):
    +4863        return value
    +4864    if value is None:
    +4865        return NULL
    +4866    if isinstance(value, bool):
    +4867        return Boolean(this=value)
    +4868    if isinstance(value, str):
    +4869        return Literal.string(value)
    +4870    if isinstance(value, float) and math.isnan(value):
    +4871        return NULL
    +4872    if isinstance(value, numbers.Number):
    +4873        return Literal.number(value)
    +4874    if isinstance(value, tuple):
    +4875        return Tuple(expressions=[convert(v) for v in value])
    +4876    if isinstance(value, list):
    +4877        return Array(expressions=[convert(v) for v in value])
    +4878    if isinstance(value, dict):
    +4879        return Map(
    +4880            keys=[convert(k) for k in value],
    +4881            values=[convert(v) for v in value.values()],
    +4882        )
    +4883    if isinstance(value, datetime.datetime):
    +4884        datetime_literal = Literal.string(
    +4885            (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat()
    +4886        )
    +4887        return TimeStrToTime(this=datetime_literal)
    +4888    if isinstance(value, datetime.date):
    +4889        date_literal = Literal.string(value.strftime("%Y-%m-%d"))
    +4890        return DateStrToDate(this=date_literal)
    +4891    raise ValueError(f"Cannot convert {value}")
     
    @@ -44598,26 +44844,26 @@ in order to help with type inference.
    -
    4879def replace_children(expression, fun, *args, **kwargs):
    -4880    """
    -4881    Replace children of an expression with the result of a lambda fun(child) -> exp.
    -4882    """
    -4883    for k, v in expression.args.items():
    -4884        is_list_arg = type(v) is list
    -4885
    -4886        child_nodes = v if is_list_arg else [v]
    -4887        new_child_nodes = []
    -4888
    -4889        for cn in child_nodes:
    -4890            if isinstance(cn, Expression):
    -4891                for child_node in ensure_collection(fun(cn, *args, **kwargs)):
    -4892                    new_child_nodes.append(child_node)
    -4893                    child_node.parent = expression
    -4894                    child_node.arg_key = k
    -4895            else:
    -4896                new_child_nodes.append(cn)
    -4897
    -4898        expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0)
    +            
    4894def replace_children(expression, fun, *args, **kwargs):
    +4895    """
    +4896    Replace children of an expression with the result of a lambda fun(child) -> exp.
    +4897    """
    +4898    for k, v in expression.args.items():
    +4899        is_list_arg = type(v) is list
    +4900
    +4901        child_nodes = v if is_list_arg else [v]
    +4902        new_child_nodes = []
    +4903
    +4904        for cn in child_nodes:
    +4905            if isinstance(cn, Expression):
    +4906                for child_node in ensure_collection(fun(cn, *args, **kwargs)):
    +4907                    new_child_nodes.append(child_node)
    +4908                    child_node.parent = expression
    +4909                    child_node.arg_key = k
    +4910            else:
    +4911                new_child_nodes.append(cn)
    +4912
    +4913        expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0)
     
    @@ -44637,22 +44883,22 @@ in order to help with type inference.
    -
    4901def column_table_names(expression):
    -4902    """
    -4903    Return all table names referenced through columns in an expression.
    -4904
    -4905    Example:
    -4906        >>> import sqlglot
    -4907        >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))
    -4908        ['c', 'a']
    -4909
    -4910    Args:
    -4911        expression (sqlglot.Expression): expression to find table names
    -4912
    -4913    Returns:
    -4914        list: A list of unique names
    -4915    """
    -4916    return list(dict.fromkeys(column.table for column in expression.find_all(Column)))
    +            
    4916def column_table_names(expression):
    +4917    """
    +4918    Return all table names referenced through columns in an expression.
    +4919
    +4920    Example:
    +4921        >>> import sqlglot
    +4922        >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))
    +4923        ['c', 'a']
    +4924
    +4925    Args:
    +4926        expression (sqlglot.Expression): expression to find table names
    +4927
    +4928    Returns:
    +4929        list: A list of unique names
    +4930    """
    +4931    return list(dict.fromkeys(column.table for column in expression.find_all(Column)))
     
    @@ -44695,35 +44941,35 @@ in order to help with type inference.
    -
    4919def table_name(table) -> str:
    -4920    """Get the full name of a table as a string.
    -4921
    -4922    Args:
    -4923        table (exp.Table | str): table expression node or string.
    -4924
    -4925    Examples:
    -4926        >>> from sqlglot import exp, parse_one
    -4927        >>> table_name(parse_one("select * from a.b.c").find(exp.Table))
    -4928        'a.b.c'
    -4929
    -4930    Returns:
    -4931        The table name.
    -4932    """
    -4933
    -4934    table = maybe_parse(table, into=Table)
    -4935
    -4936    if not table:
    -4937        raise ValueError(f"Cannot parse {table}")
    -4938
    -4939    return ".".join(
    -4940        part
    -4941        for part in (
    -4942            table.text("catalog"),
    -4943            table.text("db"),
    -4944            table.name,
    -4945        )
    -4946        if part
    -4947    )
    +            
    4934def table_name(table) -> str:
    +4935    """Get the full name of a table as a string.
    +4936
    +4937    Args:
    +4938        table (exp.Table | str): table expression node or string.
    +4939
    +4940    Examples:
    +4941        >>> from sqlglot import exp, parse_one
    +4942        >>> table_name(parse_one("select * from a.b.c").find(exp.Table))
    +4943        'a.b.c'
    +4944
    +4945    Returns:
    +4946        The table name.
    +4947    """
    +4948
    +4949    table = maybe_parse(table, into=Table)
    +4950
    +4951    if not table:
    +4952        raise ValueError(f"Cannot parse {table}")
    +4953
    +4954    return ".".join(
    +4955        part
    +4956        for part in (
    +4957            table.text("catalog"),
    +4958            table.text("db"),
    +4959            table.name,
    +4960        )
    +4961        if part
    +4962    )
     
    @@ -44766,33 +45012,33 @@ in order to help with type inference.
    -
    4950def replace_tables(expression, mapping):
    -4951    """Replace all tables in expression according to the mapping.
    -4952
    -4953    Args:
    -4954        expression (sqlglot.Expression): expression node to be transformed and replaced.
    -4955        mapping (Dict[str, str]): mapping of table names.
    -4956
    -4957    Examples:
    -4958        >>> from sqlglot import exp, parse_one
    -4959        >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()
    -4960        'SELECT * FROM c'
    -4961
    -4962    Returns:
    -4963        The mapped expression.
    -4964    """
    -4965
    -4966    def _replace_tables(node):
    -4967        if isinstance(node, Table):
    -4968            new_name = mapping.get(table_name(node))
    -4969            if new_name:
    -4970                return to_table(
    -4971                    new_name,
    -4972                    **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")},
    -4973                )
    -4974        return node
    -4975
    -4976    return expression.transform(_replace_tables)
    +            
    4965def replace_tables(expression, mapping):
    +4966    """Replace all tables in expression according to the mapping.
    +4967
    +4968    Args:
    +4969        expression (sqlglot.Expression): expression node to be transformed and replaced.
    +4970        mapping (Dict[str, str]): mapping of table names.
    +4971
    +4972    Examples:
    +4973        >>> from sqlglot import exp, parse_one
    +4974        >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()
    +4975        'SELECT * FROM c'
    +4976
    +4977    Returns:
    +4978        The mapped expression.
    +4979    """
    +4980
    +4981    def _replace_tables(node):
    +4982        if isinstance(node, Table):
    +4983            new_name = mapping.get(table_name(node))
    +4984            if new_name:
    +4985                return to_table(
    +4986                    new_name,
    +4987                    **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")},
    +4988                )
    +4989        return node
    +4990
    +4991    return expression.transform(_replace_tables)
     
    @@ -44836,39 +45082,40 @@ in order to help with type inference.
    -
    4979def replace_placeholders(expression, *args, **kwargs):
    -4980    """Replace placeholders in an expression.
    -4981
    -4982    Args:
    -4983        expression (sqlglot.Expression): expression node to be transformed and replaced.
    -4984        args: positional names that will substitute unnamed placeholders in the given order.
    -4985        kwargs: keyword arguments that will substitute named placeholders.
    -4986
    -4987    Examples:
    -4988        >>> from sqlglot import exp, parse_one
    -4989        >>> replace_placeholders(
    -4990        ...     parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo"
    -4991        ... ).sql()
    -4992        'SELECT * FROM foo WHERE a = b'
    -4993
    -4994    Returns:
    -4995        The mapped expression.
    -4996    """
    -4997
    -4998    def _replace_placeholders(node, args, **kwargs):
    -4999        if isinstance(node, Placeholder):
    -5000            if node.name:
    -5001                new_name = kwargs.get(node.name)
    -5002                if new_name:
    -5003                    return to_identifier(new_name)
    -5004            else:
    -5005                try:
    -5006                    return to_identifier(next(args))
    -5007                except StopIteration:
    -5008                    pass
    -5009        return node
    -5010
    -5011    return expression.transform(_replace_placeholders, iter(args), **kwargs)
    +            
    4994def replace_placeholders(expression, *args, **kwargs):
    +4995    """Replace placeholders in an expression.
    +4996
    +4997    Args:
    +4998        expression (sqlglot.Expression): expression node to be transformed and replaced.
    +4999        args: positional names that will substitute unnamed placeholders in the given order.
    +5000        kwargs: keyword arguments that will substitute named placeholders.
    +5001
    +5002    Examples:
    +5003        >>> from sqlglot import exp, parse_one
    +5004        >>> replace_placeholders(
    +5005        ...     parse_one("select * from :tbl where ? = ?"),
    +5006        ...     exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo")
    +5007        ... ).sql()
    +5008        "SELECT * FROM foo WHERE str_col = 'b'"
    +5009
    +5010    Returns:
    +5011        The mapped expression.
    +5012    """
    +5013
    +5014    def _replace_placeholders(node, args, **kwargs):
    +5015        if isinstance(node, Placeholder):
    +5016            if node.name:
    +5017                new_name = kwargs.get(node.name)
    +5018                if new_name:
    +5019                    return convert(new_name)
    +5020            else:
    +5021                try:
    +5022                    return convert(next(args))
    +5023                except StopIteration:
    +5024                    pass
    +5025        return node
    +5026
    +5027    return expression.transform(_replace_placeholders, iter(args), **kwargs)
     
    @@ -44888,9 +45135,10 @@ in order to help with type inference.
    >>> from sqlglot import exp, parse_one
     >>> replace_placeholders(
    -...     parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo"
    +...     parse_one("select * from :tbl where ? = ?"),
    +...     exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo")
     ... ).sql()
    -'SELECT * FROM foo WHERE a = b'
    +"SELECT * FROM foo WHERE str_col = 'b'"
     
    @@ -44915,34 +45163,34 @@ in order to help with type inference.
    -
    5014def expand(expression: Expression, sources: t.Dict[str, Subqueryable], copy=True) -> Expression:
    -5015    """Transforms an expression by expanding all referenced sources into subqueries.
    -5016
    -5017    Examples:
    -5018        >>> from sqlglot import parse_one
    -5019        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()
    -5020        'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'
    -5021
    -5022    Args:
    -5023        expression: The expression to expand.
    -5024        sources: A dictionary of name to Subqueryables.
    -5025        copy: Whether or not to copy the expression during transformation. Defaults to True.
    -5026
    -5027    Returns:
    -5028        The transformed expression.
    -5029    """
    -5030
    -5031    def _expand(node: Expression):
    -5032        if isinstance(node, Table):
    -5033            name = table_name(node)
    -5034            source = sources.get(name)
    -5035            if source:
    -5036                subquery = source.subquery(node.alias or name)
    -5037                subquery.comments = [f"source: {name}"]
    -5038                return subquery
    -5039        return node
    -5040
    -5041    return expression.transform(_expand, copy=copy)
    +            
    5030def expand(expression: Expression, sources: t.Dict[str, Subqueryable], copy=True) -> Expression:
    +5031    """Transforms an expression by expanding all referenced sources into subqueries.
    +5032
    +5033    Examples:
    +5034        >>> from sqlglot import parse_one
    +5035        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()
    +5036        'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'
    +5037
    +5038    Args:
    +5039        expression: The expression to expand.
    +5040        sources: A dictionary of name to Subqueryables.
    +5041        copy: Whether or not to copy the expression during transformation. Defaults to True.
    +5042
    +5043    Returns:
    +5044        The transformed expression.
    +5045    """
    +5046
    +5047    def _expand(node: Expression):
    +5048        if isinstance(node, Table):
    +5049            name = table_name(node)
    +5050            source = sources.get(name)
    +5051            if source:
    +5052                subquery = source.subquery(node.alias or name)
    +5053                subquery.comments = [f"source: {name}"]
    +5054                return subquery
    +5055        return node
    +5056
    +5057    return expression.transform(_expand, copy=copy)
     
    @@ -44987,51 +45235,51 @@ in order to help with type inference.
    -
    5044def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func:
    -5045    """
    -5046    Returns a Func expression.
    -5047
    -5048    Examples:
    -5049        >>> func("abs", 5).sql()
    -5050        'ABS(5)'
    -5051
    -5052        >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()
    -5053        'CAST(5 AS DOUBLE)'
    -5054
    -5055    Args:
    -5056        name: the name of the function to build.
    -5057        args: the args used to instantiate the function of interest.
    -5058        dialect: the source dialect.
    -5059        kwargs: the kwargs used to instantiate the function of interest.
    -5060
    -5061    Note:
    -5062        The arguments `args` and `kwargs` are mutually exclusive.
    +            
    5060def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func:
    +5061    """
    +5062    Returns a Func expression.
     5063
    -5064    Returns:
    -5065        An instance of the function of interest, or an anonymous function, if `name` doesn't
    -5066        correspond to an existing `sqlglot.expressions.Func` class.
    -5067    """
    -5068    if args and kwargs:
    -5069        raise ValueError("Can't use both args and kwargs to instantiate a function.")
    +5064    Examples:
    +5065        >>> func("abs", 5).sql()
    +5066        'ABS(5)'
    +5067
    +5068        >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()
    +5069        'CAST(5 AS DOUBLE)'
     5070
    -5071    from sqlglot.dialects.dialect import Dialect
    -5072
    -5073    converted = [convert(arg) for arg in args]
    -5074    kwargs = {key: convert(value) for key, value in kwargs.items()}
    -5075
    -5076    parser = Dialect.get_or_raise(dialect)().parser()
    -5077    from_args_list = parser.FUNCTIONS.get(name.upper())
    -5078
    -5079    if from_args_list:
    -5080        function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs)  # type: ignore
    -5081    else:
    -5082        kwargs = kwargs or {"expressions": converted}
    -5083        function = Anonymous(this=name, **kwargs)
    -5084
    -5085    for error_message in function.error_messages(converted):
    -5086        raise ValueError(error_message)
    -5087
    -5088    return function
    +5071    Args:
    +5072        name: the name of the function to build.
    +5073        args: the args used to instantiate the function of interest.
    +5074        dialect: the source dialect.
    +5075        kwargs: the kwargs used to instantiate the function of interest.
    +5076
    +5077    Note:
    +5078        The arguments `args` and `kwargs` are mutually exclusive.
    +5079
    +5080    Returns:
    +5081        An instance of the function of interest, or an anonymous function, if `name` doesn't
    +5082        correspond to an existing `sqlglot.expressions.Func` class.
    +5083    """
    +5084    if args and kwargs:
    +5085        raise ValueError("Can't use both args and kwargs to instantiate a function.")
    +5086
    +5087    from sqlglot.dialects.dialect import Dialect
    +5088
    +5089    converted = [convert(arg) for arg in args]
    +5090    kwargs = {key: convert(value) for key, value in kwargs.items()}
    +5091
    +5092    parser = Dialect.get_or_raise(dialect)().parser()
    +5093    from_args_list = parser.FUNCTIONS.get(name.upper())
    +5094
    +5095    if from_args_list:
    +5096        function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs)  # type: ignore
    +5097    else:
    +5098        kwargs = kwargs or {"expressions": converted}
    +5099        function = Anonymous(this=name, **kwargs)
    +5100
    +5101    for error_message in function.error_messages(converted):
    +5102        raise ValueError(error_message)
    +5103
    +5104    return function
     
    @@ -45089,11 +45337,11 @@ in order to help with type inference.
    -
    5091def true():
    -5092    """
    -5093    Returns a true Boolean expression.
    -5094    """
    -5095    return Boolean(this=True)
    +            
    5107def true():
    +5108    """
    +5109    Returns a true Boolean expression.
    +5110    """
    +5111    return Boolean(this=True)
     
    @@ -45113,11 +45361,11 @@ in order to help with type inference.
    -
    5098def false():
    -5099    """
    -5100    Returns a false Boolean expression.
    -5101    """
    -5102    return Boolean(this=False)
    +            
    5114def false():
    +5115    """
    +5116    Returns a false Boolean expression.
    +5117    """
    +5118    return Boolean(this=False)
     
    @@ -45137,11 +45385,11 @@ in order to help with type inference.
    -
    5105def null():
    -5106    """
    -5107    Returns a Null expression.
    -5108    """
    -5109    return Null()
    +            
    5121def null():
    +5122    """
    +5123    Returns a Null expression.
    +5124    """
    +5125    return Null()
     
    diff --git a/docs/sqlglot/generator.html b/docs/sqlglot/generator.html index 90ae02b..2e3d5ba 100644 --- a/docs/sqlglot/generator.html +++ b/docs/sqlglot/generator.html @@ -3,7 +3,7 @@ - + sqlglot.generator API documentation @@ -81,6 +81,9 @@
  • column_sql
  • +
  • + columnposition_sql +
  • columndef_sql
  • @@ -432,6 +435,9 @@
  • if_sql
  • +
  • + matchagainst_sql +
  • jsonkeyvalue_sql
  • @@ -585,12 +591,18 @@
  • ilike_sql
  • +
  • + ilikeany_sql +
  • is_sql
  • like_sql
  • +
  • + likeany_sql +
  • similarto_sql
  • @@ -1178,1597 +1190,1617 @@
    466 if part 467 ) 468 - 469 def columndef_sql(self, expression: exp.ColumnDef) -> str: - 470 column = self.sql(expression, "this") - 471 kind = self.sql(expression, "kind") - 472 constraints = self.expressions(expression, key="constraints", sep=" ", flat=True) - 473 exists = "IF NOT EXISTS " if expression.args.get("exists") else "" - 474 kind = f" {kind}" if kind else "" - 475 constraints = f" {constraints}" if constraints else "" - 476 - 477 return f"{exists}{column}{kind}{constraints}" - 478 - 479 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: - 480 this = self.sql(expression, "this") - 481 kind_sql = self.sql(expression, "kind") - 482 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql - 483 - 484 def autoincrementcolumnconstraint_sql(self, _) -> str: - 485 return self.token_sql(TokenType.AUTO_INCREMENT) + 469 def columnposition_sql(self, expression: exp.ColumnPosition) -> str: + 470 this = self.sql(expression, "this") + 471 this = f" {this}" if this else "" + 472 position = self.sql(expression, "position") + 473 return f"{position}{this}" + 474 + 475 def columndef_sql(self, expression: exp.ColumnDef) -> str: + 476 column = self.sql(expression, "this") + 477 kind = self.sql(expression, "kind") + 478 constraints = self.expressions(expression, key="constraints", sep=" ", flat=True) + 479 exists = "IF NOT EXISTS " if expression.args.get("exists") else "" + 480 kind = f" {kind}" if kind else "" + 481 constraints = f" {constraints}" if constraints else "" + 482 position = self.sql(expression, "position") + 483 position = f" {position}" if position else "" + 484 + 485 return f"{exists}{column}{kind}{constraints}{position}" 486 - 487 def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str: - 488 if isinstance(expression.this, list): - 489 this = self.wrap(self.expressions(expression, key="this", flat=True)) - 490 else: - 491 this = self.sql(expression, "this") - 492 - 493 return f"COMPRESS {this}" + 487 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: + 488 this = self.sql(expression, "this") + 489 kind_sql = self.sql(expression, "kind") + 490 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql + 491 + 492 def autoincrementcolumnconstraint_sql(self, _) -> str: + 493 return self.token_sql(TokenType.AUTO_INCREMENT) 494 - 495 def generatedasidentitycolumnconstraint_sql( - 496 self, expression: exp.GeneratedAsIdentityColumnConstraint - 497 ) -> str: - 498 this = "" - 499 if expression.this is not None: - 500 this = " ALWAYS " if expression.this else " BY DEFAULT " - 501 start = expression.args.get("start") - 502 start = f"START WITH {start}" if start else "" - 503 increment = expression.args.get("increment") - 504 increment = f" INCREMENT BY {increment}" if increment else "" - 505 minvalue = expression.args.get("minvalue") - 506 minvalue = f" MINVALUE {minvalue}" if minvalue else "" - 507 maxvalue = expression.args.get("maxvalue") - 508 maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else "" - 509 cycle = expression.args.get("cycle") - 510 cycle_sql = "" - 511 if cycle is not None: - 512 cycle_sql = f"{' NO' if not cycle else ''} CYCLE" - 513 cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql - 514 sequence_opts = "" - 515 if start or increment or cycle_sql: - 516 sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}" - 517 sequence_opts = f" ({sequence_opts.strip()})" - 518 return f"GENERATED{this}AS IDENTITY{sequence_opts}" - 519 - 520 def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str: - 521 return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL" - 522 - 523 def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str: - 524 desc = expression.args.get("desc") - 525 if desc is not None: - 526 return f"PRIMARY KEY{' DESC' if desc else ' ASC'}" - 527 return f"PRIMARY KEY" - 528 - 529 def uniquecolumnconstraint_sql(self, _) -> str: - 530 return "UNIQUE" - 531 - 532 def create_sql(self, expression: exp.Create) -> str: - 533 kind = self.sql(expression, "kind").upper() - 534 properties = expression.args.get("properties") - 535 properties_exp = expression.copy() - 536 properties_locs = self.locate_properties(properties) if properties else {} - 537 if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get( - 538 exp.Properties.Location.POST_WITH - 539 ): - 540 properties_exp.set( - 541 "properties", - 542 exp.Properties( - 543 expressions=[ - 544 *properties_locs[exp.Properties.Location.POST_SCHEMA], - 545 *properties_locs[exp.Properties.Location.POST_WITH], - 546 ] - 547 ), - 548 ) - 549 if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME): - 550 this_name = self.sql(expression.this, "this") - 551 this_properties = self.properties( - 552 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]), - 553 wrapped=False, - 554 ) - 555 this_schema = f"({self.expressions(expression.this)})" - 556 this = f"{this_name}, {this_properties} {this_schema}" - 557 properties_sql = "" - 558 else: - 559 this = self.sql(expression, "this") - 560 properties_sql = self.sql(properties_exp, "properties") - 561 begin = " BEGIN" if expression.args.get("begin") else "" - 562 expression_sql = self.sql(expression, "expression") - 563 if expression_sql: - 564 expression_sql = f"{begin}{self.sep()}{expression_sql}" - 565 - 566 if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return): - 567 if properties_locs.get(exp.Properties.Location.POST_ALIAS): - 568 postalias_props_sql = self.properties( - 569 exp.Properties( - 570 expressions=properties_locs[exp.Properties.Location.POST_ALIAS] - 571 ), - 572 wrapped=False, - 573 ) - 574 expression_sql = f" AS {postalias_props_sql}{expression_sql}" - 575 else: - 576 expression_sql = f" AS{expression_sql}" - 577 - 578 postindex_props_sql = "" - 579 if properties_locs.get(exp.Properties.Location.POST_INDEX): - 580 postindex_props_sql = self.properties( - 581 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]), - 582 wrapped=False, - 583 prefix=" ", - 584 ) + 495 def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str: + 496 if isinstance(expression.this, list): + 497 this = self.wrap(self.expressions(expression, key="this", flat=True)) + 498 else: + 499 this = self.sql(expression, "this") + 500 + 501 return f"COMPRESS {this}" + 502 + 503 def generatedasidentitycolumnconstraint_sql( + 504 self, expression: exp.GeneratedAsIdentityColumnConstraint + 505 ) -> str: + 506 this = "" + 507 if expression.this is not None: + 508 this = " ALWAYS " if expression.this else " BY DEFAULT " + 509 start = expression.args.get("start") + 510 start = f"START WITH {start}" if start else "" + 511 increment = expression.args.get("increment") + 512 increment = f" INCREMENT BY {increment}" if increment else "" + 513 minvalue = expression.args.get("minvalue") + 514 minvalue = f" MINVALUE {minvalue}" if minvalue else "" + 515 maxvalue = expression.args.get("maxvalue") + 516 maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else "" + 517 cycle = expression.args.get("cycle") + 518 cycle_sql = "" + 519 if cycle is not None: + 520 cycle_sql = f"{' NO' if not cycle else ''} CYCLE" + 521 cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql + 522 sequence_opts = "" + 523 if start or increment or cycle_sql: + 524 sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}" + 525 sequence_opts = f" ({sequence_opts.strip()})" + 526 return f"GENERATED{this}AS IDENTITY{sequence_opts}" + 527 + 528 def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str: + 529 return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL" + 530 + 531 def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str: + 532 desc = expression.args.get("desc") + 533 if desc is not None: + 534 return f"PRIMARY KEY{' DESC' if desc else ' ASC'}" + 535 return f"PRIMARY KEY" + 536 + 537 def uniquecolumnconstraint_sql(self, _) -> str: + 538 return "UNIQUE" + 539 + 540 def create_sql(self, expression: exp.Create) -> str: + 541 kind = self.sql(expression, "kind").upper() + 542 properties = expression.args.get("properties") + 543 properties_exp = expression.copy() + 544 properties_locs = self.locate_properties(properties) if properties else {} + 545 if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get( + 546 exp.Properties.Location.POST_WITH + 547 ): + 548 properties_exp.set( + 549 "properties", + 550 exp.Properties( + 551 expressions=[ + 552 *properties_locs[exp.Properties.Location.POST_SCHEMA], + 553 *properties_locs[exp.Properties.Location.POST_WITH], + 554 ] + 555 ), + 556 ) + 557 if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME): + 558 this_name = self.sql(expression.this, "this") + 559 this_properties = self.properties( + 560 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]), + 561 wrapped=False, + 562 ) + 563 this_schema = f"({self.expressions(expression.this)})" + 564 this = f"{this_name}, {this_properties} {this_schema}" + 565 properties_sql = "" + 566 else: + 567 this = self.sql(expression, "this") + 568 properties_sql = self.sql(properties_exp, "properties") + 569 begin = " BEGIN" if expression.args.get("begin") else "" + 570 expression_sql = self.sql(expression, "expression") + 571 if expression_sql: + 572 expression_sql = f"{begin}{self.sep()}{expression_sql}" + 573 + 574 if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return): + 575 if properties_locs.get(exp.Properties.Location.POST_ALIAS): + 576 postalias_props_sql = self.properties( + 577 exp.Properties( + 578 expressions=properties_locs[exp.Properties.Location.POST_ALIAS] + 579 ), + 580 wrapped=False, + 581 ) + 582 expression_sql = f" AS {postalias_props_sql}{expression_sql}" + 583 else: + 584 expression_sql = f" AS{expression_sql}" 585 - 586 indexes = expression.args.get("indexes") - 587 if indexes: - 588 indexes_sql: t.List[str] = [] - 589 for index in indexes: - 590 ind_unique = " UNIQUE" if index.args.get("unique") else "" - 591 ind_primary = " PRIMARY" if index.args.get("primary") else "" - 592 ind_amp = " AMP" if index.args.get("amp") else "" - 593 ind_name = f" {index.name}" if index.name else "" - 594 ind_columns = ( - 595 f' ({self.expressions(index, key="columns", flat=True)})' - 596 if index.args.get("columns") - 597 else "" - 598 ) - 599 ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}" - 600 - 601 if indexes_sql: - 602 indexes_sql.append(ind_sql) - 603 else: - 604 indexes_sql.append( - 605 f"{ind_sql}{postindex_props_sql}" - 606 if index.args.get("primary") - 607 else f"{postindex_props_sql}{ind_sql}" - 608 ) - 609 - 610 index_sql = "".join(indexes_sql) - 611 else: - 612 index_sql = postindex_props_sql - 613 - 614 replace = " OR REPLACE" if expression.args.get("replace") else "" - 615 unique = " UNIQUE" if expression.args.get("unique") else "" - 616 volatile = " VOLATILE" if expression.args.get("volatile") else "" + 586 postindex_props_sql = "" + 587 if properties_locs.get(exp.Properties.Location.POST_INDEX): + 588 postindex_props_sql = self.properties( + 589 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]), + 590 wrapped=False, + 591 prefix=" ", + 592 ) + 593 + 594 indexes = expression.args.get("indexes") + 595 if indexes: + 596 indexes_sql: t.List[str] = [] + 597 for index in indexes: + 598 ind_unique = " UNIQUE" if index.args.get("unique") else "" + 599 ind_primary = " PRIMARY" if index.args.get("primary") else "" + 600 ind_amp = " AMP" if index.args.get("amp") else "" + 601 ind_name = f" {index.name}" if index.name else "" + 602 ind_columns = ( + 603 f' ({self.expressions(index, key="columns", flat=True)})' + 604 if index.args.get("columns") + 605 else "" + 606 ) + 607 ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}" + 608 + 609 if indexes_sql: + 610 indexes_sql.append(ind_sql) + 611 else: + 612 indexes_sql.append( + 613 f"{ind_sql}{postindex_props_sql}" + 614 if index.args.get("primary") + 615 else f"{postindex_props_sql}{ind_sql}" + 616 ) 617 - 618 postcreate_props_sql = "" - 619 if properties_locs.get(exp.Properties.Location.POST_CREATE): - 620 postcreate_props_sql = self.properties( - 621 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]), - 622 sep=" ", - 623 prefix=" ", - 624 wrapped=False, - 625 ) - 626 - 627 modifiers = "".join((replace, unique, volatile, postcreate_props_sql)) - 628 - 629 postexpression_props_sql = "" - 630 if properties_locs.get(exp.Properties.Location.POST_EXPRESSION): - 631 postexpression_props_sql = self.properties( - 632 exp.Properties( - 633 expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION] - 634 ), - 635 sep=" ", - 636 prefix=" ", - 637 wrapped=False, - 638 ) - 639 - 640 exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else "" - 641 no_schema_binding = ( - 642 " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else "" - 643 ) - 644 - 645 expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}" - 646 return self.prepend_ctes(expression, expression_sql) + 618 index_sql = "".join(indexes_sql) + 619 else: + 620 index_sql = postindex_props_sql + 621 + 622 replace = " OR REPLACE" if expression.args.get("replace") else "" + 623 unique = " UNIQUE" if expression.args.get("unique") else "" + 624 volatile = " VOLATILE" if expression.args.get("volatile") else "" + 625 + 626 postcreate_props_sql = "" + 627 if properties_locs.get(exp.Properties.Location.POST_CREATE): + 628 postcreate_props_sql = self.properties( + 629 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]), + 630 sep=" ", + 631 prefix=" ", + 632 wrapped=False, + 633 ) + 634 + 635 modifiers = "".join((replace, unique, volatile, postcreate_props_sql)) + 636 + 637 postexpression_props_sql = "" + 638 if properties_locs.get(exp.Properties.Location.POST_EXPRESSION): + 639 postexpression_props_sql = self.properties( + 640 exp.Properties( + 641 expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION] + 642 ), + 643 sep=" ", + 644 prefix=" ", + 645 wrapped=False, + 646 ) 647 - 648 def describe_sql(self, expression: exp.Describe) -> str: - 649 return f"DESCRIBE {self.sql(expression, 'this')}" - 650 - 651 def prepend_ctes(self, expression: exp.Expression, sql: str) -> str: - 652 with_ = self.sql(expression, "with") - 653 if with_: - 654 sql = f"{with_}{self.sep()}{sql}" - 655 return sql - 656 - 657 def with_sql(self, expression: exp.With) -> str: - 658 sql = self.expressions(expression, flat=True) - 659 recursive = "RECURSIVE " if expression.args.get("recursive") else "" - 660 - 661 return f"WITH {recursive}{sql}" - 662 - 663 def cte_sql(self, expression: exp.CTE) -> str: - 664 alias = self.sql(expression, "alias") - 665 return f"{alias} AS {self.wrap(expression)}" - 666 - 667 def tablealias_sql(self, expression: exp.TableAlias) -> str: - 668 alias = self.sql(expression, "this") - 669 columns = self.expressions(expression, key="columns", flat=True) - 670 columns = f"({columns})" if columns else "" - 671 return f"{alias}{columns}" - 672 - 673 def bitstring_sql(self, expression: exp.BitString) -> str: - 674 return self.sql(expression, "this") - 675 - 676 def hexstring_sql(self, expression: exp.HexString) -> str: - 677 return self.sql(expression, "this") - 678 - 679 def datatype_sql(self, expression: exp.DataType) -> str: - 680 type_value = expression.this - 681 type_sql = self.TYPE_MAPPING.get(type_value, type_value.value) - 682 nested = "" - 683 interior = self.expressions(expression, flat=True) - 684 values = "" - 685 if interior: - 686 if expression.args.get("nested"): - 687 nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}" - 688 if expression.args.get("values") is not None: - 689 delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")") - 690 values = ( - 691 f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}" - 692 ) - 693 else: - 694 nested = f"({interior})" - 695 - 696 return f"{type_sql}{nested}{values}" - 697 - 698 def directory_sql(self, expression: exp.Directory) -> str: - 699 local = "LOCAL " if expression.args.get("local") else "" - 700 row_format = self.sql(expression, "row_format") - 701 row_format = f" {row_format}" if row_format else "" - 702 return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}" + 648 exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else "" + 649 no_schema_binding = ( + 650 " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else "" + 651 ) + 652 + 653 expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}" + 654 return self.prepend_ctes(expression, expression_sql) + 655 + 656 def describe_sql(self, expression: exp.Describe) -> str: + 657 return f"DESCRIBE {self.sql(expression, 'this')}" + 658 + 659 def prepend_ctes(self, expression: exp.Expression, sql: str) -> str: + 660 with_ = self.sql(expression, "with") + 661 if with_: + 662 sql = f"{with_}{self.sep()}{sql}" + 663 return sql + 664 + 665 def with_sql(self, expression: exp.With) -> str: + 666 sql = self.expressions(expression, flat=True) + 667 recursive = "RECURSIVE " if expression.args.get("recursive") else "" + 668 + 669 return f"WITH {recursive}{sql}" + 670 + 671 def cte_sql(self, expression: exp.CTE) -> str: + 672 alias = self.sql(expression, "alias") + 673 return f"{alias} AS {self.wrap(expression)}" + 674 + 675 def tablealias_sql(self, expression: exp.TableAlias) -> str: + 676 alias = self.sql(expression, "this") + 677 columns = self.expressions(expression, key="columns", flat=True) + 678 columns = f"({columns})" if columns else "" + 679 return f"{alias}{columns}" + 680 + 681 def bitstring_sql(self, expression: exp.BitString) -> str: + 682 return self.sql(expression, "this") + 683 + 684 def hexstring_sql(self, expression: exp.HexString) -> str: + 685 return self.sql(expression, "this") + 686 + 687 def datatype_sql(self, expression: exp.DataType) -> str: + 688 type_value = expression.this + 689 type_sql = self.TYPE_MAPPING.get(type_value, type_value.value) + 690 nested = "" + 691 interior = self.expressions(expression, flat=True) + 692 values = "" + 693 if interior: + 694 if expression.args.get("nested"): + 695 nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}" + 696 if expression.args.get("values") is not None: + 697 delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")") + 698 values = ( + 699 f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}" + 700 ) + 701 else: + 702 nested = f"({interior})" 703 - 704 def delete_sql(self, expression: exp.Delete) -> str: - 705 this = self.sql(expression, "this") - 706 this = f" FROM {this}" if this else "" - 707 using_sql = ( - 708 f" USING {self.expressions(expression, 'using', sep=', USING ')}" - 709 if expression.args.get("using") - 710 else "" - 711 ) - 712 where_sql = self.sql(expression, "where") - 713 returning = self.sql(expression, "returning") - 714 sql = f"DELETE{this}{using_sql}{where_sql}{returning}" - 715 return self.prepend_ctes(expression, sql) - 716 - 717 def drop_sql(self, expression: exp.Drop) -> str: - 718 this = self.sql(expression, "this") - 719 kind = expression.args["kind"] - 720 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " - 721 temporary = " TEMPORARY" if expression.args.get("temporary") else "" - 722 materialized = " MATERIALIZED" if expression.args.get("materialized") else "" - 723 cascade = " CASCADE" if expression.args.get("cascade") else "" - 724 return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}" - 725 - 726 def except_sql(self, expression: exp.Except) -> str: - 727 return self.prepend_ctes( - 728 expression, - 729 self.set_operation(expression, self.except_op(expression)), - 730 ) - 731 - 732 def except_op(self, expression: exp.Except) -> str: - 733 return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}" + 704 return f"{type_sql}{nested}{values}" + 705 + 706 def directory_sql(self, expression: exp.Directory) -> str: + 707 local = "LOCAL " if expression.args.get("local") else "" + 708 row_format = self.sql(expression, "row_format") + 709 row_format = f" {row_format}" if row_format else "" + 710 return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}" + 711 + 712 def delete_sql(self, expression: exp.Delete) -> str: + 713 this = self.sql(expression, "this") + 714 this = f" FROM {this}" if this else "" + 715 using_sql = ( + 716 f" USING {self.expressions(expression, 'using', sep=', USING ')}" + 717 if expression.args.get("using") + 718 else "" + 719 ) + 720 where_sql = self.sql(expression, "where") + 721 returning = self.sql(expression, "returning") + 722 sql = f"DELETE{this}{using_sql}{where_sql}{returning}" + 723 return self.prepend_ctes(expression, sql) + 724 + 725 def drop_sql(self, expression: exp.Drop) -> str: + 726 this = self.sql(expression, "this") + 727 kind = expression.args["kind"] + 728 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " + 729 temporary = " TEMPORARY" if expression.args.get("temporary") else "" + 730 materialized = " MATERIALIZED" if expression.args.get("materialized") else "" + 731 cascade = " CASCADE" if expression.args.get("cascade") else "" + 732 constraints = " CONSTRAINTS" if expression.args.get("constraints") else "" + 733 return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}{constraints}" 734 - 735 def fetch_sql(self, expression: exp.Fetch) -> str: - 736 direction = expression.args.get("direction") - 737 direction = f" {direction.upper()}" if direction else "" - 738 count = expression.args.get("count") - 739 count = f" {count}" if count else "" - 740 return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY" - 741 - 742 def filter_sql(self, expression: exp.Filter) -> str: - 743 this = self.sql(expression, "this") - 744 where = self.sql(expression, "expression")[1:] # where has a leading space - 745 return f"{this} FILTER({where})" - 746 - 747 def hint_sql(self, expression: exp.Hint) -> str: - 748 if self.sql(expression, "this"): - 749 self.unsupported("Hints are not supported") - 750 return "" - 751 - 752 def index_sql(self, expression: exp.Index) -> str: - 753 this = self.sql(expression, "this") - 754 table = self.sql(expression, "table") - 755 columns = self.sql(expression, "columns") - 756 return f"{this} ON {table} {columns}" - 757 - 758 def identifier_sql(self, expression: exp.Identifier) -> str: - 759 text = expression.name - 760 text = text.lower() if self.normalize and not expression.quoted else text - 761 text = text.replace(self.identifier_end, self._escaped_identifier_end) - 762 if expression.quoted or should_identify(text, self.identify): - 763 text = f"{self.identifier_start}{text}{self.identifier_end}" - 764 return text - 765 - 766 def national_sql(self, expression: exp.National) -> str: - 767 return f"N{self.sql(expression, 'this')}" - 768 - 769 def partition_sql(self, expression: exp.Partition) -> str: - 770 return f"PARTITION({self.expressions(expression)})" - 771 - 772 def properties_sql(self, expression: exp.Properties) -> str: - 773 root_properties = [] - 774 with_properties = [] - 775 - 776 for p in expression.expressions: - 777 p_loc = self.PROPERTIES_LOCATION[p.__class__] - 778 if p_loc == exp.Properties.Location.POST_WITH: - 779 with_properties.append(p) - 780 elif p_loc == exp.Properties.Location.POST_SCHEMA: - 781 root_properties.append(p) - 782 - 783 return self.root_properties( - 784 exp.Properties(expressions=root_properties) - 785 ) + self.with_properties(exp.Properties(expressions=with_properties)) - 786 - 787 def root_properties(self, properties: exp.Properties) -> str: - 788 if properties.expressions: - 789 return self.sep() + self.expressions(properties, indent=False, sep=" ") - 790 return "" + 735 def except_sql(self, expression: exp.Except) -> str: + 736 return self.prepend_ctes( + 737 expression, + 738 self.set_operation(expression, self.except_op(expression)), + 739 ) + 740 + 741 def except_op(self, expression: exp.Except) -> str: + 742 return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}" + 743 + 744 def fetch_sql(self, expression: exp.Fetch) -> str: + 745 direction = expression.args.get("direction") + 746 direction = f" {direction.upper()}" if direction else "" + 747 count = expression.args.get("count") + 748 count = f" {count}" if count else "" + 749 return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY" + 750 + 751 def filter_sql(self, expression: exp.Filter) -> str: + 752 this = self.sql(expression, "this") + 753 where = self.sql(expression, "expression")[1:] # where has a leading space + 754 return f"{this} FILTER({where})" + 755 + 756 def hint_sql(self, expression: exp.Hint) -> str: + 757 if self.sql(expression, "this"): + 758 self.unsupported("Hints are not supported") + 759 return "" + 760 + 761 def index_sql(self, expression: exp.Index) -> str: + 762 this = self.sql(expression, "this") + 763 table = self.sql(expression, "table") + 764 columns = self.sql(expression, "columns") + 765 return f"{this} ON {table} {columns}" + 766 + 767 def identifier_sql(self, expression: exp.Identifier) -> str: + 768 text = expression.name + 769 text = text.lower() if self.normalize and not expression.quoted else text + 770 text = text.replace(self.identifier_end, self._escaped_identifier_end) + 771 if expression.quoted or should_identify(text, self.identify): + 772 text = f"{self.identifier_start}{text}{self.identifier_end}" + 773 return text + 774 + 775 def national_sql(self, expression: exp.National) -> str: + 776 return f"N{self.sql(expression, 'this')}" + 777 + 778 def partition_sql(self, expression: exp.Partition) -> str: + 779 return f"PARTITION({self.expressions(expression)})" + 780 + 781 def properties_sql(self, expression: exp.Properties) -> str: + 782 root_properties = [] + 783 with_properties = [] + 784 + 785 for p in expression.expressions: + 786 p_loc = self.PROPERTIES_LOCATION[p.__class__] + 787 if p_loc == exp.Properties.Location.POST_WITH: + 788 with_properties.append(p) + 789 elif p_loc == exp.Properties.Location.POST_SCHEMA: + 790 root_properties.append(p) 791 - 792 def properties( - 793 self, - 794 properties: exp.Properties, - 795 prefix: str = "", - 796 sep: str = ", ", - 797 suffix: str = "", - 798 wrapped: bool = True, - 799 ) -> str: - 800 if properties.expressions: - 801 expressions = self.expressions(properties, sep=sep, indent=False) - 802 expressions = self.wrap(expressions) if wrapped else expressions - 803 return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}" - 804 return "" - 805 - 806 def with_properties(self, properties: exp.Properties) -> str: - 807 return self.properties(properties, prefix=self.seg("WITH")) - 808 - 809 def locate_properties( - 810 self, properties: exp.Properties - 811 ) -> t.Dict[exp.Properties.Location, list[exp.Property]]: - 812 properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = { - 813 key: [] for key in exp.Properties.Location - 814 } - 815 - 816 for p in properties.expressions: - 817 p_loc = self.PROPERTIES_LOCATION[p.__class__] - 818 if p_loc == exp.Properties.Location.POST_NAME: - 819 properties_locs[exp.Properties.Location.POST_NAME].append(p) - 820 elif p_loc == exp.Properties.Location.POST_INDEX: - 821 properties_locs[exp.Properties.Location.POST_INDEX].append(p) - 822 elif p_loc == exp.Properties.Location.POST_SCHEMA: - 823 properties_locs[exp.Properties.Location.POST_SCHEMA].append(p) - 824 elif p_loc == exp.Properties.Location.POST_WITH: - 825 properties_locs[exp.Properties.Location.POST_WITH].append(p) - 826 elif p_loc == exp.Properties.Location.POST_CREATE: - 827 properties_locs[exp.Properties.Location.POST_CREATE].append(p) - 828 elif p_loc == exp.Properties.Location.POST_ALIAS: - 829 properties_locs[exp.Properties.Location.POST_ALIAS].append(p) - 830 elif p_loc == exp.Properties.Location.POST_EXPRESSION: - 831 properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p) - 832 elif p_loc == exp.Properties.Location.UNSUPPORTED: - 833 self.unsupported(f"Unsupported property {p.key}") - 834 - 835 return properties_locs - 836 - 837 def property_sql(self, expression: exp.Property) -> str: - 838 property_cls = expression.__class__ - 839 if property_cls == exp.Property: - 840 return f"{expression.name}={self.sql(expression, 'value')}" - 841 - 842 property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls) - 843 if not property_name: - 844 self.unsupported(f"Unsupported property {expression.key}") + 792 return self.root_properties( + 793 exp.Properties(expressions=root_properties) + 794 ) + self.with_properties(exp.Properties(expressions=with_properties)) + 795 + 796 def root_properties(self, properties: exp.Properties) -> str: + 797 if properties.expressions: + 798 return self.sep() + self.expressions(properties, indent=False, sep=" ") + 799 return "" + 800 + 801 def properties( + 802 self, + 803 properties: exp.Properties, + 804 prefix: str = "", + 805 sep: str = ", ", + 806 suffix: str = "", + 807 wrapped: bool = True, + 808 ) -> str: + 809 if properties.expressions: + 810 expressions = self.expressions(properties, sep=sep, indent=False) + 811 expressions = self.wrap(expressions) if wrapped else expressions + 812 return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}" + 813 return "" + 814 + 815 def with_properties(self, properties: exp.Properties) -> str: + 816 return self.properties(properties, prefix=self.seg("WITH")) + 817 + 818 def locate_properties( + 819 self, properties: exp.Properties + 820 ) -> t.Dict[exp.Properties.Location, list[exp.Property]]: + 821 properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = { + 822 key: [] for key in exp.Properties.Location + 823 } + 824 + 825 for p in properties.expressions: + 826 p_loc = self.PROPERTIES_LOCATION[p.__class__] + 827 if p_loc == exp.Properties.Location.POST_NAME: + 828 properties_locs[exp.Properties.Location.POST_NAME].append(p) + 829 elif p_loc == exp.Properties.Location.POST_INDEX: + 830 properties_locs[exp.Properties.Location.POST_INDEX].append(p) + 831 elif p_loc == exp.Properties.Location.POST_SCHEMA: + 832 properties_locs[exp.Properties.Location.POST_SCHEMA].append(p) + 833 elif p_loc == exp.Properties.Location.POST_WITH: + 834 properties_locs[exp.Properties.Location.POST_WITH].append(p) + 835 elif p_loc == exp.Properties.Location.POST_CREATE: + 836 properties_locs[exp.Properties.Location.POST_CREATE].append(p) + 837 elif p_loc == exp.Properties.Location.POST_ALIAS: + 838 properties_locs[exp.Properties.Location.POST_ALIAS].append(p) + 839 elif p_loc == exp.Properties.Location.POST_EXPRESSION: + 840 properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p) + 841 elif p_loc == exp.Properties.Location.UNSUPPORTED: + 842 self.unsupported(f"Unsupported property {p.key}") + 843 + 844 return properties_locs 845 - 846 return f"{property_name}={self.sql(expression, 'this')}" - 847 - 848 def likeproperty_sql(self, expression: exp.LikeProperty) -> str: - 849 options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions) - 850 options = f" {options}" if options else "" - 851 return f"LIKE {self.sql(expression, 'this')}{options}" - 852 - 853 def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str: - 854 no = "NO " if expression.args.get("no") else "" - 855 protection = " PROTECTION" if expression.args.get("protection") else "" - 856 return f"{no}FALLBACK{protection}" - 857 - 858 def journalproperty_sql(self, expression: exp.JournalProperty) -> str: - 859 no = "NO " if expression.args.get("no") else "" - 860 dual = "DUAL " if expression.args.get("dual") else "" - 861 before = "BEFORE " if expression.args.get("before") else "" - 862 return f"{no}{dual}{before}JOURNAL" - 863 - 864 def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str: - 865 freespace = self.sql(expression, "this") - 866 percent = " PERCENT" if expression.args.get("percent") else "" - 867 return f"FREESPACE={freespace}{percent}" - 868 - 869 def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str: - 870 no = "NO " if expression.args.get("no") else "" - 871 dual = "DUAL " if expression.args.get("dual") else "" - 872 local = "" - 873 if expression.args.get("local") is not None: - 874 local = "LOCAL " if expression.args.get("local") else "NOT LOCAL " - 875 return f"{no}{dual}{local}AFTER JOURNAL" - 876 - 877 def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str: - 878 if expression.args.get("default"): - 879 property = "DEFAULT" - 880 elif expression.args.get("on"): - 881 property = "ON" - 882 else: - 883 property = "OFF" - 884 return f"CHECKSUM={property}" + 846 def property_sql(self, expression: exp.Property) -> str: + 847 property_cls = expression.__class__ + 848 if property_cls == exp.Property: + 849 return f"{expression.name}={self.sql(expression, 'value')}" + 850 + 851 property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls) + 852 if not property_name: + 853 self.unsupported(f"Unsupported property {expression.key}") + 854 + 855 return f"{property_name}={self.sql(expression, 'this')}" + 856 + 857 def likeproperty_sql(self, expression: exp.LikeProperty) -> str: + 858 options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions) + 859 options = f" {options}" if options else "" + 860 return f"LIKE {self.sql(expression, 'this')}{options}" + 861 + 862 def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str: + 863 no = "NO " if expression.args.get("no") else "" + 864 protection = " PROTECTION" if expression.args.get("protection") else "" + 865 return f"{no}FALLBACK{protection}" + 866 + 867 def journalproperty_sql(self, expression: exp.JournalProperty) -> str: + 868 no = "NO " if expression.args.get("no") else "" + 869 dual = "DUAL " if expression.args.get("dual") else "" + 870 before = "BEFORE " if expression.args.get("before") else "" + 871 return f"{no}{dual}{before}JOURNAL" + 872 + 873 def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str: + 874 freespace = self.sql(expression, "this") + 875 percent = " PERCENT" if expression.args.get("percent") else "" + 876 return f"FREESPACE={freespace}{percent}" + 877 + 878 def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str: + 879 no = "NO " if expression.args.get("no") else "" + 880 dual = "DUAL " if expression.args.get("dual") else "" + 881 local = "" + 882 if expression.args.get("local") is not None: + 883 local = "LOCAL " if expression.args.get("local") else "NOT LOCAL " + 884 return f"{no}{dual}{local}AFTER JOURNAL" 885 - 886 def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str: - 887 if expression.args.get("no"): - 888 return "NO MERGEBLOCKRATIO" - 889 if expression.args.get("default"): - 890 return "DEFAULT MERGEBLOCKRATIO" - 891 - 892 percent = " PERCENT" if expression.args.get("percent") else "" - 893 return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}" + 886 def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str: + 887 if expression.args.get("default"): + 888 property = "DEFAULT" + 889 elif expression.args.get("on"): + 890 property = "ON" + 891 else: + 892 property = "OFF" + 893 return f"CHECKSUM={property}" 894 - 895 def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str: - 896 default = expression.args.get("default") - 897 min = expression.args.get("min") - 898 if default is not None or min is not None: - 899 if default: - 900 property = "DEFAULT" - 901 elif min: - 902 property = "MINIMUM" - 903 else: - 904 property = "MAXIMUM" - 905 return f"{property} DATABLOCKSIZE" - 906 else: - 907 units = expression.args.get("units") - 908 units = f" {units}" if units else "" - 909 return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}" - 910 - 911 def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str: - 912 autotemp = expression.args.get("autotemp") - 913 always = expression.args.get("always") - 914 default = expression.args.get("default") - 915 manual = expression.args.get("manual") - 916 never = expression.args.get("never") - 917 - 918 if autotemp is not None: - 919 property = f"AUTOTEMP({self.expressions(autotemp)})" - 920 elif always: - 921 property = "ALWAYS" - 922 elif default: - 923 property = "DEFAULT" - 924 elif manual: - 925 property = "MANUAL" - 926 elif never: - 927 property = "NEVER" - 928 return f"BLOCKCOMPRESSION={property}" - 929 - 930 def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str: - 931 no = expression.args.get("no") - 932 no = " NO" if no else "" - 933 concurrent = expression.args.get("concurrent") - 934 concurrent = " CONCURRENT" if concurrent else "" - 935 - 936 for_ = "" - 937 if expression.args.get("for_all"): - 938 for_ = " FOR ALL" - 939 elif expression.args.get("for_insert"): - 940 for_ = " FOR INSERT" - 941 elif expression.args.get("for_none"): - 942 for_ = " FOR NONE" - 943 return f"WITH{no}{concurrent} ISOLATED LOADING{for_}" + 895 def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str: + 896 if expression.args.get("no"): + 897 return "NO MERGEBLOCKRATIO" + 898 if expression.args.get("default"): + 899 return "DEFAULT MERGEBLOCKRATIO" + 900 + 901 percent = " PERCENT" if expression.args.get("percent") else "" + 902 return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}" + 903 + 904 def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str: + 905 default = expression.args.get("default") + 906 min = expression.args.get("min") + 907 if default is not None or min is not None: + 908 if default: + 909 property = "DEFAULT" + 910 elif min: + 911 property = "MINIMUM" + 912 else: + 913 property = "MAXIMUM" + 914 return f"{property} DATABLOCKSIZE" + 915 else: + 916 units = expression.args.get("units") + 917 units = f" {units}" if units else "" + 918 return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}" + 919 + 920 def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str: + 921 autotemp = expression.args.get("autotemp") + 922 always = expression.args.get("always") + 923 default = expression.args.get("default") + 924 manual = expression.args.get("manual") + 925 never = expression.args.get("never") + 926 + 927 if autotemp is not None: + 928 property = f"AUTOTEMP({self.expressions(autotemp)})" + 929 elif always: + 930 property = "ALWAYS" + 931 elif default: + 932 property = "DEFAULT" + 933 elif manual: + 934 property = "MANUAL" + 935 elif never: + 936 property = "NEVER" + 937 return f"BLOCKCOMPRESSION={property}" + 938 + 939 def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str: + 940 no = expression.args.get("no") + 941 no = " NO" if no else "" + 942 concurrent = expression.args.get("concurrent") + 943 concurrent = " CONCURRENT" if concurrent else "" 944 - 945 def lockingproperty_sql(self, expression: exp.LockingProperty) -> str: - 946 kind = expression.args.get("kind") - 947 this: str = f" {this}" if expression.this else "" - 948 for_or_in = expression.args.get("for_or_in") - 949 lock_type = expression.args.get("lock_type") - 950 override = " OVERRIDE" if expression.args.get("override") else "" - 951 return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}" - 952 - 953 def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str: - 954 data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA" - 955 statistics = expression.args.get("statistics") - 956 statistics_sql = "" - 957 if statistics is not None: - 958 statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS" - 959 return f"{data_sql}{statistics_sql}" - 960 - 961 def insert_sql(self, expression: exp.Insert) -> str: - 962 overwrite = expression.args.get("overwrite") - 963 - 964 if isinstance(expression.this, exp.Directory): - 965 this = "OVERWRITE " if overwrite else "INTO " - 966 else: - 967 this = "OVERWRITE TABLE " if overwrite else "INTO " - 968 - 969 alternative = expression.args.get("alternative") - 970 alternative = f" OR {alternative} " if alternative else " " - 971 this = f"{this}{self.sql(expression, 'this')}" + 945 for_ = "" + 946 if expression.args.get("for_all"): + 947 for_ = " FOR ALL" + 948 elif expression.args.get("for_insert"): + 949 for_ = " FOR INSERT" + 950 elif expression.args.get("for_none"): + 951 for_ = " FOR NONE" + 952 return f"WITH{no}{concurrent} ISOLATED LOADING{for_}" + 953 + 954 def lockingproperty_sql(self, expression: exp.LockingProperty) -> str: + 955 kind = expression.args.get("kind") + 956 this: str = f" {this}" if expression.this else "" + 957 for_or_in = expression.args.get("for_or_in") + 958 lock_type = expression.args.get("lock_type") + 959 override = " OVERRIDE" if expression.args.get("override") else "" + 960 return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}" + 961 + 962 def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str: + 963 data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA" + 964 statistics = expression.args.get("statistics") + 965 statistics_sql = "" + 966 if statistics is not None: + 967 statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS" + 968 return f"{data_sql}{statistics_sql}" + 969 + 970 def insert_sql(self, expression: exp.Insert) -> str: + 971 overwrite = expression.args.get("overwrite") 972 - 973 exists = " IF EXISTS " if expression.args.get("exists") else " " - 974 partition_sql = ( - 975 self.sql(expression, "partition") if expression.args.get("partition") else "" - 976 ) - 977 expression_sql = self.sql(expression, "expression") - 978 returning = self.sql(expression, "returning") - 979 sep = self.sep() if partition_sql else "" - 980 sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}" - 981 return self.prepend_ctes(expression, sql) - 982 - 983 def intersect_sql(self, expression: exp.Intersect) -> str: - 984 return self.prepend_ctes( - 985 expression, - 986 self.set_operation(expression, self.intersect_op(expression)), - 987 ) - 988 - 989 def intersect_op(self, expression: exp.Intersect) -> str: - 990 return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}" + 973 if isinstance(expression.this, exp.Directory): + 974 this = "OVERWRITE " if overwrite else "INTO " + 975 else: + 976 this = "OVERWRITE TABLE " if overwrite else "INTO " + 977 + 978 alternative = expression.args.get("alternative") + 979 alternative = f" OR {alternative} " if alternative else " " + 980 this = f"{this}{self.sql(expression, 'this')}" + 981 + 982 exists = " IF EXISTS " if expression.args.get("exists") else " " + 983 partition_sql = ( + 984 self.sql(expression, "partition") if expression.args.get("partition") else "" + 985 ) + 986 expression_sql = self.sql(expression, "expression") + 987 returning = self.sql(expression, "returning") + 988 sep = self.sep() if partition_sql else "" + 989 sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}" + 990 return self.prepend_ctes(expression, sql) 991 - 992 def introducer_sql(self, expression: exp.Introducer) -> str: - 993 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" - 994 - 995 def pseudotype_sql(self, expression: exp.PseudoType) -> str: - 996 return expression.name.upper() + 992 def intersect_sql(self, expression: exp.Intersect) -> str: + 993 return self.prepend_ctes( + 994 expression, + 995 self.set_operation(expression, self.intersect_op(expression)), + 996 ) 997 - 998 def returning_sql(self, expression: exp.Returning) -> str: - 999 return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}" + 998 def intersect_op(self, expression: exp.Intersect) -> str: + 999 return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}" 1000 -1001 def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str: -1002 fields = expression.args.get("fields") -1003 fields = f" FIELDS TERMINATED BY {fields}" if fields else "" -1004 escaped = expression.args.get("escaped") -1005 escaped = f" ESCAPED BY {escaped}" if escaped else "" -1006 items = expression.args.get("collection_items") -1007 items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else "" -1008 keys = expression.args.get("map_keys") -1009 keys = f" MAP KEYS TERMINATED BY {keys}" if keys else "" -1010 lines = expression.args.get("lines") -1011 lines = f" LINES TERMINATED BY {lines}" if lines else "" -1012 null = expression.args.get("null") -1013 null = f" NULL DEFINED AS {null}" if null else "" -1014 return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}" -1015 -1016 def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str: -1017 table = ".".join( -1018 part -1019 for part in [ -1020 self.sql(expression, "catalog"), -1021 self.sql(expression, "db"), -1022 self.sql(expression, "this"), -1023 ] -1024 if part -1025 ) -1026 -1027 alias = self.sql(expression, "alias") -1028 alias = f"{sep}{alias}" if alias else "" -1029 hints = self.expressions(expression, key="hints", sep=", ", flat=True) -1030 hints = f" WITH ({hints})" if hints else "" -1031 laterals = self.expressions(expression, key="laterals", sep="") -1032 joins = self.expressions(expression, key="joins", sep="") -1033 pivots = self.expressions(expression, key="pivots", sep="") -1034 system_time = expression.args.get("system_time") -1035 system_time = f" {self.sql(expression, 'system_time')}" if system_time else "" -1036 -1037 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" -1038 -1039 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: -1040 if self.alias_post_tablesample and expression.this.alias: -1041 this = self.sql(expression.this, "this") -1042 alias = f" AS {self.sql(expression.this, 'alias')}" -1043 else: -1044 this = self.sql(expression, "this") -1045 alias = "" -1046 method = self.sql(expression, "method") -1047 method = f"{method.upper()} " if method else "" -1048 numerator = self.sql(expression, "bucket_numerator") -1049 denominator = self.sql(expression, "bucket_denominator") -1050 field = self.sql(expression, "bucket_field") -1051 field = f" ON {field}" if field else "" -1052 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" -1053 percent = self.sql(expression, "percent") -1054 percent = f"{percent} PERCENT" if percent else "" -1055 rows = self.sql(expression, "rows") -1056 rows = f"{rows} ROWS" if rows else "" -1057 size = self.sql(expression, "size") -1058 seed = self.sql(expression, "seed") -1059 seed = f" {seed_prefix} ({seed})" if seed else "" -1060 kind = expression.args.get("kind", "TABLESAMPLE") -1061 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" -1062 -1063 def pivot_sql(self, expression: exp.Pivot) -> str: -1064 this = self.sql(expression, "this") -1065 alias = self.sql(expression, "alias") -1066 alias = f" AS {alias}" if alias else "" -1067 unpivot = expression.args.get("unpivot") -1068 direction = "UNPIVOT" if unpivot else "PIVOT" -1069 expressions = self.expressions(expression, key="expressions") -1070 field = self.sql(expression, "field") -1071 return f"{this} {direction}({expressions} FOR {field}){alias}" -1072 -1073 def tuple_sql(self, expression: exp.Tuple) -> str: -1074 return f"({self.expressions(expression, flat=True)})" -1075 -1076 def update_sql(self, expression: exp.Update) -> str: -1077 this = self.sql(expression, "this") -1078 set_sql = self.expressions(expression, flat=True) -1079 from_sql = self.sql(expression, "from") -1080 where_sql = self.sql(expression, "where") -1081 returning = self.sql(expression, "returning") -1082 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" -1083 return self.prepend_ctes(expression, sql) +1001 def introducer_sql(self, expression: exp.Introducer) -> str: +1002 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" +1003 +1004 def pseudotype_sql(self, expression: exp.PseudoType) -> str: +1005 return expression.name.upper() +1006 +1007 def returning_sql(self, expression: exp.Returning) -> str: +1008 return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}" +1009 +1010 def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str: +1011 fields = expression.args.get("fields") +1012 fields = f" FIELDS TERMINATED BY {fields}" if fields else "" +1013 escaped = expression.args.get("escaped") +1014 escaped = f" ESCAPED BY {escaped}" if escaped else "" +1015 items = expression.args.get("collection_items") +1016 items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else "" +1017 keys = expression.args.get("map_keys") +1018 keys = f" MAP KEYS TERMINATED BY {keys}" if keys else "" +1019 lines = expression.args.get("lines") +1020 lines = f" LINES TERMINATED BY {lines}" if lines else "" +1021 null = expression.args.get("null") +1022 null = f" NULL DEFINED AS {null}" if null else "" +1023 return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}" +1024 +1025 def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str: +1026 table = ".".join( +1027 part +1028 for part in [ +1029 self.sql(expression, "catalog"), +1030 self.sql(expression, "db"), +1031 self.sql(expression, "this"), +1032 ] +1033 if part +1034 ) +1035 +1036 alias = self.sql(expression, "alias") +1037 alias = f"{sep}{alias}" if alias else "" +1038 hints = self.expressions(expression, key="hints", sep=", ", flat=True) +1039 hints = f" WITH ({hints})" if hints else "" +1040 laterals = self.expressions(expression, key="laterals", sep="") +1041 joins = self.expressions(expression, key="joins", sep="") +1042 pivots = self.expressions(expression, key="pivots", sep="") +1043 system_time = expression.args.get("system_time") +1044 system_time = f" {self.sql(expression, 'system_time')}" if system_time else "" +1045 +1046 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" +1047 +1048 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: +1049 if self.alias_post_tablesample and expression.this.alias: +1050 this = self.sql(expression.this, "this") +1051 alias = f" AS {self.sql(expression.this, 'alias')}" +1052 else: +1053 this = self.sql(expression, "this") +1054 alias = "" +1055 method = self.sql(expression, "method") +1056 method = f"{method.upper()} " if method else "" +1057 numerator = self.sql(expression, "bucket_numerator") +1058 denominator = self.sql(expression, "bucket_denominator") +1059 field = self.sql(expression, "bucket_field") +1060 field = f" ON {field}" if field else "" +1061 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" +1062 percent = self.sql(expression, "percent") +1063 percent = f"{percent} PERCENT" if percent else "" +1064 rows = self.sql(expression, "rows") +1065 rows = f"{rows} ROWS" if rows else "" +1066 size = self.sql(expression, "size") +1067 seed = self.sql(expression, "seed") +1068 seed = f" {seed_prefix} ({seed})" if seed else "" +1069 kind = expression.args.get("kind", "TABLESAMPLE") +1070 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" +1071 +1072 def pivot_sql(self, expression: exp.Pivot) -> str: +1073 this = self.sql(expression, "this") +1074 alias = self.sql(expression, "alias") +1075 alias = f" AS {alias}" if alias else "" +1076 unpivot = expression.args.get("unpivot") +1077 direction = "UNPIVOT" if unpivot else "PIVOT" +1078 expressions = self.expressions(expression, key="expressions") +1079 field = self.sql(expression, "field") +1080 return f"{this} {direction}({expressions} FOR {field}){alias}" +1081 +1082 def tuple_sql(self, expression: exp.Tuple) -> str: +1083 return f"({self.expressions(expression, flat=True)})" 1084 -1085 def values_sql(self, expression: exp.Values) -> str: -1086 args = self.expressions(expression) -1087 alias = self.sql(expression, "alias") -1088 values = f"VALUES{self.seg('')}{args}" -1089 values = ( -1090 f"({values})" -1091 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) -1092 else values -1093 ) -1094 return f"{values} AS {alias}" if alias else values -1095 -1096 def var_sql(self, expression: exp.Var) -> str: -1097 return self.sql(expression, "this") -1098 -1099 def into_sql(self, expression: exp.Into) -> str: -1100 temporary = " TEMPORARY" if expression.args.get("temporary") else "" -1101 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" -1102 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" -1103 -1104 def from_sql(self, expression: exp.From) -> str: -1105 expressions = self.expressions(expression, flat=True) -1106 return f"{self.seg('FROM')} {expressions}" +1085 def update_sql(self, expression: exp.Update) -> str: +1086 this = self.sql(expression, "this") +1087 set_sql = self.expressions(expression, flat=True) +1088 from_sql = self.sql(expression, "from") +1089 where_sql = self.sql(expression, "where") +1090 returning = self.sql(expression, "returning") +1091 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" +1092 return self.prepend_ctes(expression, sql) +1093 +1094 def values_sql(self, expression: exp.Values) -> str: +1095 args = self.expressions(expression) +1096 alias = self.sql(expression, "alias") +1097 values = f"VALUES{self.seg('')}{args}" +1098 values = ( +1099 f"({values})" +1100 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) +1101 else values +1102 ) +1103 return f"{values} AS {alias}" if alias else values +1104 +1105 def var_sql(self, expression: exp.Var) -> str: +1106 return self.sql(expression, "this") 1107 -1108 def group_sql(self, expression: exp.Group) -> str: -1109 group_by = self.op_expressions("GROUP BY", expression) -1110 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) -1111 grouping_sets = ( -1112 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" -1113 ) -1114 -1115 cube = expression.args.get("cube", []) -1116 if seq_get(cube, 0) is True: -1117 return f"{group_by}{self.seg('WITH CUBE')}" -1118 else: -1119 cube_sql = self.expressions(expression, key="cube", indent=False) -1120 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" -1121 -1122 rollup = expression.args.get("rollup", []) -1123 if seq_get(rollup, 0) is True: -1124 return f"{group_by}{self.seg('WITH ROLLUP')}" -1125 else: -1126 rollup_sql = self.expressions(expression, key="rollup", indent=False) -1127 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" -1128 -1129 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") +1108 def into_sql(self, expression: exp.Into) -> str: +1109 temporary = " TEMPORARY" if expression.args.get("temporary") else "" +1110 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" +1111 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" +1112 +1113 def from_sql(self, expression: exp.From) -> str: +1114 expressions = self.expressions(expression, flat=True) +1115 return f"{self.seg('FROM')} {expressions}" +1116 +1117 def group_sql(self, expression: exp.Group) -> str: +1118 group_by = self.op_expressions("GROUP BY", expression) +1119 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) +1120 grouping_sets = ( +1121 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" +1122 ) +1123 +1124 cube = expression.args.get("cube", []) +1125 if seq_get(cube, 0) is True: +1126 return f"{group_by}{self.seg('WITH CUBE')}" +1127 else: +1128 cube_sql = self.expressions(expression, key="cube", indent=False) +1129 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" 1130 -1131 if expression.args.get("expressions") and groupings: -1132 group_by = f"{group_by}," -1133 -1134 return f"{group_by}{groupings}" -1135 -1136 def having_sql(self, expression: exp.Having) -> str: -1137 this = self.indent(self.sql(expression, "this")) -1138 return f"{self.seg('HAVING')}{self.sep()}{this}" +1131 rollup = expression.args.get("rollup", []) +1132 if seq_get(rollup, 0) is True: +1133 return f"{group_by}{self.seg('WITH ROLLUP')}" +1134 else: +1135 rollup_sql = self.expressions(expression, key="rollup", indent=False) +1136 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" +1137 +1138 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") 1139 -1140 def join_sql(self, expression: exp.Join) -> str: -1141 op_sql = self.seg( -1142 " ".join( -1143 op -1144 for op in ( -1145 "NATURAL" if expression.args.get("natural") else None, -1146 expression.side, -1147 expression.kind, -1148 "JOIN", -1149 ) -1150 if op -1151 ) -1152 ) -1153 on_sql = self.sql(expression, "on") -1154 using = expression.args.get("using") -1155 -1156 if not on_sql and using: -1157 on_sql = csv(*(self.sql(column) for column in using)) -1158 -1159 if on_sql: -1160 on_sql = self.indent(on_sql, skip_first=True) -1161 space = self.seg(" " * self.pad) if self.pretty else " " -1162 if using: -1163 on_sql = f"{space}USING ({on_sql})" -1164 else: -1165 on_sql = f"{space}ON {on_sql}" -1166 -1167 expression_sql = self.sql(expression, "expression") -1168 this_sql = self.sql(expression, "this") -1169 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" -1170 -1171 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: -1172 args = self.expressions(expression, flat=True) -1173 args = f"({args})" if len(args.split(",")) > 1 else args -1174 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" +1140 if expression.args.get("expressions") and groupings: +1141 group_by = f"{group_by}," +1142 +1143 return f"{group_by}{groupings}" +1144 +1145 def having_sql(self, expression: exp.Having) -> str: +1146 this = self.indent(self.sql(expression, "this")) +1147 return f"{self.seg('HAVING')}{self.sep()}{this}" +1148 +1149 def join_sql(self, expression: exp.Join) -> str: +1150 op_sql = self.seg( +1151 " ".join( +1152 op +1153 for op in ( +1154 "NATURAL" if expression.args.get("natural") else None, +1155 expression.side, +1156 expression.kind, +1157 "JOIN", +1158 ) +1159 if op +1160 ) +1161 ) +1162 on_sql = self.sql(expression, "on") +1163 using = expression.args.get("using") +1164 +1165 if not on_sql and using: +1166 on_sql = csv(*(self.sql(column) for column in using)) +1167 +1168 if on_sql: +1169 on_sql = self.indent(on_sql, skip_first=True) +1170 space = self.seg(" " * self.pad) if self.pretty else " " +1171 if using: +1172 on_sql = f"{space}USING ({on_sql})" +1173 else: +1174 on_sql = f"{space}ON {on_sql}" 1175 -1176 def lateral_sql(self, expression: exp.Lateral) -> str: -1177 this = self.sql(expression, "this") -1178 -1179 if isinstance(expression.this, exp.Subquery): -1180 return f"LATERAL {this}" -1181 -1182 if expression.args.get("view"): -1183 alias = expression.args["alias"] -1184 columns = self.expressions(alias, key="columns", flat=True) -1185 table = f" {alias.name}" if alias.name else "" -1186 columns = f" AS {columns}" if columns else "" -1187 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") -1188 return f"{op_sql}{self.sep()}{this}{table}{columns}" -1189 -1190 alias = self.sql(expression, "alias") -1191 alias = f" AS {alias}" if alias else "" -1192 return f"LATERAL {this}{alias}" -1193 -1194 def limit_sql(self, expression: exp.Limit) -> str: -1195 this = self.sql(expression, "this") -1196 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" -1197 -1198 def offset_sql(self, expression: exp.Offset) -> str: -1199 this = self.sql(expression, "this") -1200 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" -1201 -1202 def setitem_sql(self, expression: exp.SetItem) -> str: -1203 kind = self.sql(expression, "kind") -1204 kind = f"{kind} " if kind else "" -1205 this = self.sql(expression, "this") -1206 expressions = self.expressions(expression) -1207 collate = self.sql(expression, "collate") -1208 collate = f" COLLATE {collate}" if collate else "" -1209 global_ = "GLOBAL " if expression.args.get("global") else "" -1210 return f"{global_}{kind}{this}{expressions}{collate}" -1211 -1212 def set_sql(self, expression: exp.Set) -> str: -1213 expressions = ( -1214 f" {self.expressions(expression, flat=True)}" if expression.expressions else "" -1215 ) -1216 return f"SET{expressions}" -1217 -1218 def pragma_sql(self, expression: exp.Pragma) -> str: -1219 return f"PRAGMA {self.sql(expression, 'this')}" +1176 expression_sql = self.sql(expression, "expression") +1177 this_sql = self.sql(expression, "this") +1178 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" +1179 +1180 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: +1181 args = self.expressions(expression, flat=True) +1182 args = f"({args})" if len(args.split(",")) > 1 else args +1183 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" +1184 +1185 def lateral_sql(self, expression: exp.Lateral) -> str: +1186 this = self.sql(expression, "this") +1187 +1188 if isinstance(expression.this, exp.Subquery): +1189 return f"LATERAL {this}" +1190 +1191 if expression.args.get("view"): +1192 alias = expression.args["alias"] +1193 columns = self.expressions(alias, key="columns", flat=True) +1194 table = f" {alias.name}" if alias.name else "" +1195 columns = f" AS {columns}" if columns else "" +1196 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") +1197 return f"{op_sql}{self.sep()}{this}{table}{columns}" +1198 +1199 alias = self.sql(expression, "alias") +1200 alias = f" AS {alias}" if alias else "" +1201 return f"LATERAL {this}{alias}" +1202 +1203 def limit_sql(self, expression: exp.Limit) -> str: +1204 this = self.sql(expression, "this") +1205 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" +1206 +1207 def offset_sql(self, expression: exp.Offset) -> str: +1208 this = self.sql(expression, "this") +1209 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" +1210 +1211 def setitem_sql(self, expression: exp.SetItem) -> str: +1212 kind = self.sql(expression, "kind") +1213 kind = f"{kind} " if kind else "" +1214 this = self.sql(expression, "this") +1215 expressions = self.expressions(expression) +1216 collate = self.sql(expression, "collate") +1217 collate = f" COLLATE {collate}" if collate else "" +1218 global_ = "GLOBAL " if expression.args.get("global") else "" +1219 return f"{global_}{kind}{this}{expressions}{collate}" 1220 -1221 def lock_sql(self, expression: exp.Lock) -> str: -1222 if self.LOCKING_READS_SUPPORTED: -1223 lock_type = "UPDATE" if expression.args["update"] else "SHARE" -1224 return self.seg(f"FOR {lock_type}") -1225 -1226 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") -1227 return "" -1228 -1229 def literal_sql(self, expression: exp.Literal) -> str: -1230 text = expression.this or "" -1231 if expression.is_string: -1232 text = text.replace(self.quote_end, self._escaped_quote_end) -1233 if self.pretty: -1234 text = text.replace("\n", self.SENTINEL_LINE_BREAK) -1235 text = f"{self.quote_start}{text}{self.quote_end}" -1236 return text +1221 def set_sql(self, expression: exp.Set) -> str: +1222 expressions = ( +1223 f" {self.expressions(expression, flat=True)}" if expression.expressions else "" +1224 ) +1225 return f"SET{expressions}" +1226 +1227 def pragma_sql(self, expression: exp.Pragma) -> str: +1228 return f"PRAGMA {self.sql(expression, 'this')}" +1229 +1230 def lock_sql(self, expression: exp.Lock) -> str: +1231 if self.LOCKING_READS_SUPPORTED: +1232 lock_type = "UPDATE" if expression.args["update"] else "SHARE" +1233 return self.seg(f"FOR {lock_type}") +1234 +1235 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") +1236 return "" 1237 -1238 def loaddata_sql(self, expression: exp.LoadData) -> str: -1239 local = " LOCAL" if expression.args.get("local") else "" -1240 inpath = f" INPATH {self.sql(expression, 'inpath')}" -1241 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" -1242 this = f" INTO TABLE {self.sql(expression, 'this')}" -1243 partition = self.sql(expression, "partition") -1244 partition = f" {partition}" if partition else "" -1245 input_format = self.sql(expression, "input_format") -1246 input_format = f" INPUTFORMAT {input_format}" if input_format else "" -1247 serde = self.sql(expression, "serde") -1248 serde = f" SERDE {serde}" if serde else "" -1249 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" -1250 -1251 def null_sql(self, *_) -> str: -1252 return "NULL" -1253 -1254 def boolean_sql(self, expression: exp.Boolean) -> str: -1255 return "TRUE" if expression.this else "FALSE" -1256 -1257 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: -1258 this = self.sql(expression, "this") -1259 this = f"{this} " if this else this -1260 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore -1261 -1262 def cluster_sql(self, expression: exp.Cluster) -> str: -1263 return self.op_expressions("CLUSTER BY", expression) -1264 -1265 def distribute_sql(self, expression: exp.Distribute) -> str: -1266 return self.op_expressions("DISTRIBUTE BY", expression) -1267 -1268 def sort_sql(self, expression: exp.Sort) -> str: -1269 return self.op_expressions("SORT BY", expression) +1238 def literal_sql(self, expression: exp.Literal) -> str: +1239 text = expression.this or "" +1240 if expression.is_string: +1241 text = text.replace(self.quote_end, self._escaped_quote_end) +1242 if self.pretty: +1243 text = text.replace("\n", self.SENTINEL_LINE_BREAK) +1244 text = f"{self.quote_start}{text}{self.quote_end}" +1245 return text +1246 +1247 def loaddata_sql(self, expression: exp.LoadData) -> str: +1248 local = " LOCAL" if expression.args.get("local") else "" +1249 inpath = f" INPATH {self.sql(expression, 'inpath')}" +1250 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" +1251 this = f" INTO TABLE {self.sql(expression, 'this')}" +1252 partition = self.sql(expression, "partition") +1253 partition = f" {partition}" if partition else "" +1254 input_format = self.sql(expression, "input_format") +1255 input_format = f" INPUTFORMAT {input_format}" if input_format else "" +1256 serde = self.sql(expression, "serde") +1257 serde = f" SERDE {serde}" if serde else "" +1258 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" +1259 +1260 def null_sql(self, *_) -> str: +1261 return "NULL" +1262 +1263 def boolean_sql(self, expression: exp.Boolean) -> str: +1264 return "TRUE" if expression.this else "FALSE" +1265 +1266 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: +1267 this = self.sql(expression, "this") +1268 this = f"{this} " if this else this +1269 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore 1270 -1271 def ordered_sql(self, expression: exp.Ordered) -> str: -1272 desc = expression.args.get("desc") -1273 asc = not desc -1274 -1275 nulls_first = expression.args.get("nulls_first") -1276 nulls_last = not nulls_first -1277 nulls_are_large = self.null_ordering == "nulls_are_large" -1278 nulls_are_small = self.null_ordering == "nulls_are_small" -1279 nulls_are_last = self.null_ordering == "nulls_are_last" -1280 -1281 sort_order = " DESC" if desc else "" -1282 nulls_sort_change = "" -1283 if nulls_first and ( -1284 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last -1285 ): -1286 nulls_sort_change = " NULLS FIRST" -1287 elif ( -1288 nulls_last -1289 and ((asc and nulls_are_small) or (desc and nulls_are_large)) -1290 and not nulls_are_last -1291 ): -1292 nulls_sort_change = " NULLS LAST" -1293 -1294 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: -1295 self.unsupported( -1296 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" -1297 ) -1298 nulls_sort_change = "" -1299 -1300 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" -1301 -1302 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: -1303 partition = self.partition_by_sql(expression) -1304 order = self.sql(expression, "order") -1305 measures = self.sql(expression, "measures") -1306 measures = self.seg(f"MEASURES {measures}") if measures else "" -1307 rows = self.sql(expression, "rows") -1308 rows = self.seg(rows) if rows else "" -1309 after = self.sql(expression, "after") -1310 after = self.seg(after) if after else "" -1311 pattern = self.sql(expression, "pattern") -1312 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" -1313 define = self.sql(expression, "define") -1314 define = self.seg(f"DEFINE {define}") if define else "" -1315 body = "".join( -1316 ( -1317 partition, -1318 order, -1319 measures, -1320 rows, -1321 after, -1322 pattern, -1323 define, -1324 ) -1325 ) -1326 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}" -1327 -1328 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: -1329 limit = expression.args.get("limit") -1330 -1331 if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch): -1332 limit = exp.Limit(expression=limit.args.get("count")) -1333 elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit): -1334 limit = exp.Fetch(direction="FIRST", count=limit.expression) -1335 -1336 fetch = isinstance(limit, exp.Fetch) -1337 -1338 return csv( -1339 *sqls, -1340 *[self.sql(sql) for sql in expression.args.get("joins") or []], -1341 self.sql(expression, "match"), -1342 *[self.sql(sql) for sql in expression.args.get("laterals") or []], -1343 self.sql(expression, "where"), -1344 self.sql(expression, "group"), -1345 self.sql(expression, "having"), -1346 self.sql(expression, "qualify"), -1347 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) -1348 if expression.args.get("windows") -1349 else "", -1350 self.sql(expression, "distribute"), -1351 self.sql(expression, "sort"), -1352 self.sql(expression, "cluster"), -1353 self.sql(expression, "order"), -1354 self.sql(expression, "offset") if fetch else self.sql(limit), -1355 self.sql(limit) if fetch else self.sql(expression, "offset"), -1356 self.sql(expression, "lock"), -1357 self.sql(expression, "sample"), -1358 sep="", -1359 ) -1360 -1361 def select_sql(self, expression: exp.Select) -> str: -1362 kind = expression.args.get("kind") -1363 kind = f" AS {kind}" if kind else "" -1364 hint = self.sql(expression, "hint") -1365 distinct = self.sql(expression, "distinct") -1366 distinct = f" {distinct}" if distinct else "" -1367 expressions = self.expressions(expression) -1368 expressions = f"{self.sep()}{expressions}" if expressions else expressions -1369 sql = self.query_modifiers( -1370 expression, -1371 f"SELECT{kind}{hint}{distinct}{expressions}", -1372 self.sql(expression, "into", comment=False), -1373 self.sql(expression, "from", comment=False), -1374 ) -1375 return self.prepend_ctes(expression, sql) -1376 -1377 def schema_sql(self, expression: exp.Schema) -> str: -1378 this = self.sql(expression, "this") -1379 this = f"{this} " if this else "" -1380 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" -1381 return f"{this}{sql}" -1382 -1383 def star_sql(self, expression: exp.Star) -> str: -1384 except_ = self.expressions(expression, key="except", flat=True) -1385 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" -1386 replace = self.expressions(expression, key="replace", flat=True) -1387 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" -1388 return f"*{except_}{replace}" -1389 -1390 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: -1391 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" -1392 -1393 def parameter_sql(self, expression: exp.Parameter) -> str: -1394 this = self.sql(expression, "this") -1395 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" -1396 return f"{self.PARAMETER_TOKEN}{this}" -1397 -1398 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: -1399 this = self.sql(expression, "this") -1400 kind = expression.text("kind") -1401 if kind: -1402 kind = f"{kind}." -1403 return f"@@{kind}{this}" -1404 -1405 def placeholder_sql(self, expression: exp.Placeholder) -> str: -1406 return f":{expression.name}" if expression.name else "?" -1407 -1408 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: -1409 alias = self.sql(expression, "alias") -1410 alias = f"{sep}{alias}" if alias else "" -1411 -1412 sql = self.query_modifiers( -1413 expression, -1414 self.wrap(expression), -1415 alias, -1416 self.expressions(expression, key="pivots", sep=" "), -1417 ) -1418 -1419 return self.prepend_ctes(expression, sql) +1271 def cluster_sql(self, expression: exp.Cluster) -> str: +1272 return self.op_expressions("CLUSTER BY", expression) +1273 +1274 def distribute_sql(self, expression: exp.Distribute) -> str: +1275 return self.op_expressions("DISTRIBUTE BY", expression) +1276 +1277 def sort_sql(self, expression: exp.Sort) -> str: +1278 return self.op_expressions("SORT BY", expression) +1279 +1280 def ordered_sql(self, expression: exp.Ordered) -> str: +1281 desc = expression.args.get("desc") +1282 asc = not desc +1283 +1284 nulls_first = expression.args.get("nulls_first") +1285 nulls_last = not nulls_first +1286 nulls_are_large = self.null_ordering == "nulls_are_large" +1287 nulls_are_small = self.null_ordering == "nulls_are_small" +1288 nulls_are_last = self.null_ordering == "nulls_are_last" +1289 +1290 sort_order = " DESC" if desc else "" +1291 nulls_sort_change = "" +1292 if nulls_first and ( +1293 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last +1294 ): +1295 nulls_sort_change = " NULLS FIRST" +1296 elif ( +1297 nulls_last +1298 and ((asc and nulls_are_small) or (desc and nulls_are_large)) +1299 and not nulls_are_last +1300 ): +1301 nulls_sort_change = " NULLS LAST" +1302 +1303 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: +1304 self.unsupported( +1305 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" +1306 ) +1307 nulls_sort_change = "" +1308 +1309 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" +1310 +1311 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: +1312 partition = self.partition_by_sql(expression) +1313 order = self.sql(expression, "order") +1314 measures = self.sql(expression, "measures") +1315 measures = self.seg(f"MEASURES {measures}") if measures else "" +1316 rows = self.sql(expression, "rows") +1317 rows = self.seg(rows) if rows else "" +1318 after = self.sql(expression, "after") +1319 after = self.seg(after) if after else "" +1320 pattern = self.sql(expression, "pattern") +1321 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" +1322 define = self.sql(expression, "define") +1323 define = self.seg(f"DEFINE {define}") if define else "" +1324 body = "".join( +1325 ( +1326 partition, +1327 order, +1328 measures, +1329 rows, +1330 after, +1331 pattern, +1332 define, +1333 ) +1334 ) +1335 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}" +1336 +1337 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: +1338 limit = expression.args.get("limit") +1339 +1340 if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch): +1341 limit = exp.Limit(expression=limit.args.get("count")) +1342 elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit): +1343 limit = exp.Fetch(direction="FIRST", count=limit.expression) +1344 +1345 fetch = isinstance(limit, exp.Fetch) +1346 +1347 return csv( +1348 *sqls, +1349 *[self.sql(sql) for sql in expression.args.get("joins") or []], +1350 self.sql(expression, "match"), +1351 *[self.sql(sql) for sql in expression.args.get("laterals") or []], +1352 self.sql(expression, "where"), +1353 self.sql(expression, "group"), +1354 self.sql(expression, "having"), +1355 self.sql(expression, "qualify"), +1356 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) +1357 if expression.args.get("windows") +1358 else "", +1359 self.sql(expression, "distribute"), +1360 self.sql(expression, "sort"), +1361 self.sql(expression, "cluster"), +1362 self.sql(expression, "order"), +1363 self.sql(expression, "offset") if fetch else self.sql(limit), +1364 self.sql(limit) if fetch else self.sql(expression, "offset"), +1365 self.sql(expression, "lock"), +1366 self.sql(expression, "sample"), +1367 sep="", +1368 ) +1369 +1370 def select_sql(self, expression: exp.Select) -> str: +1371 kind = expression.args.get("kind") +1372 kind = f" AS {kind}" if kind else "" +1373 hint = self.sql(expression, "hint") +1374 distinct = self.sql(expression, "distinct") +1375 distinct = f" {distinct}" if distinct else "" +1376 expressions = self.expressions(expression) +1377 expressions = f"{self.sep()}{expressions}" if expressions else expressions +1378 sql = self.query_modifiers( +1379 expression, +1380 f"SELECT{kind}{hint}{distinct}{expressions}", +1381 self.sql(expression, "into", comment=False), +1382 self.sql(expression, "from", comment=False), +1383 ) +1384 return self.prepend_ctes(expression, sql) +1385 +1386 def schema_sql(self, expression: exp.Schema) -> str: +1387 this = self.sql(expression, "this") +1388 this = f"{this} " if this else "" +1389 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" +1390 return f"{this}{sql}" +1391 +1392 def star_sql(self, expression: exp.Star) -> str: +1393 except_ = self.expressions(expression, key="except", flat=True) +1394 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" +1395 replace = self.expressions(expression, key="replace", flat=True) +1396 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" +1397 return f"*{except_}{replace}" +1398 +1399 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: +1400 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" +1401 +1402 def parameter_sql(self, expression: exp.Parameter) -> str: +1403 this = self.sql(expression, "this") +1404 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" +1405 return f"{self.PARAMETER_TOKEN}{this}" +1406 +1407 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: +1408 this = self.sql(expression, "this") +1409 kind = expression.text("kind") +1410 if kind: +1411 kind = f"{kind}." +1412 return f"@@{kind}{this}" +1413 +1414 def placeholder_sql(self, expression: exp.Placeholder) -> str: +1415 return f":{expression.name}" if expression.name else "?" +1416 +1417 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: +1418 alias = self.sql(expression, "alias") +1419 alias = f"{sep}{alias}" if alias else "" 1420 -1421 def qualify_sql(self, expression: exp.Qualify) -> str: -1422 this = self.indent(self.sql(expression, "this")) -1423 return f"{self.seg('QUALIFY')}{self.sep()}{this}" -1424 -1425 def union_sql(self, expression: exp.Union) -> str: -1426 return self.prepend_ctes( -1427 expression, -1428 self.set_operation(expression, self.union_op(expression)), -1429 ) -1430 -1431 def union_op(self, expression: exp.Union) -> str: -1432 kind = " DISTINCT" if self.EXPLICIT_UNION else "" -1433 kind = kind if expression.args.get("distinct") else " ALL" -1434 return f"UNION{kind}" -1435 -1436 def unnest_sql(self, expression: exp.Unnest) -> str: -1437 args = self.expressions(expression, flat=True) -1438 alias = expression.args.get("alias") -1439 if alias and self.unnest_column_only: -1440 columns = alias.columns -1441 alias = self.sql(columns[0]) if columns else "" -1442 else: -1443 alias = self.sql(expression, "alias") -1444 alias = f" AS {alias}" if alias else alias -1445 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" -1446 offset = expression.args.get("offset") -1447 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" -1448 return f"UNNEST({args}){ordinality}{alias}{offset}" -1449 -1450 def where_sql(self, expression: exp.Where) -> str: -1451 this = self.indent(self.sql(expression, "this")) -1452 return f"{self.seg('WHERE')}{self.sep()}{this}" -1453 -1454 def window_sql(self, expression: exp.Window) -> str: -1455 this = self.sql(expression, "this") -1456 -1457 partition = self.partition_by_sql(expression) +1421 sql = self.query_modifiers( +1422 expression, +1423 self.wrap(expression), +1424 alias, +1425 self.expressions(expression, key="pivots", sep=" "), +1426 ) +1427 +1428 return self.prepend_ctes(expression, sql) +1429 +1430 def qualify_sql(self, expression: exp.Qualify) -> str: +1431 this = self.indent(self.sql(expression, "this")) +1432 return f"{self.seg('QUALIFY')}{self.sep()}{this}" +1433 +1434 def union_sql(self, expression: exp.Union) -> str: +1435 return self.prepend_ctes( +1436 expression, +1437 self.set_operation(expression, self.union_op(expression)), +1438 ) +1439 +1440 def union_op(self, expression: exp.Union) -> str: +1441 kind = " DISTINCT" if self.EXPLICIT_UNION else "" +1442 kind = kind if expression.args.get("distinct") else " ALL" +1443 return f"UNION{kind}" +1444 +1445 def unnest_sql(self, expression: exp.Unnest) -> str: +1446 args = self.expressions(expression, flat=True) +1447 alias = expression.args.get("alias") +1448 if alias and self.unnest_column_only: +1449 columns = alias.columns +1450 alias = self.sql(columns[0]) if columns else "" +1451 else: +1452 alias = self.sql(expression, "alias") +1453 alias = f" AS {alias}" if alias else alias +1454 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" +1455 offset = expression.args.get("offset") +1456 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" +1457 return f"UNNEST({args}){ordinality}{alias}{offset}" 1458 -1459 order = expression.args.get("order") -1460 order_sql = self.order_sql(order, flat=True) if order else "" -1461 -1462 partition_sql = partition + " " if partition and order else partition -1463 -1464 spec = expression.args.get("spec") -1465 spec_sql = " " + self.window_spec_sql(spec) if spec else "" -1466 -1467 alias = self.sql(expression, "alias") -1468 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" -1469 -1470 if not partition and not order and not spec and alias: -1471 return f"{this} {alias}" +1459 def where_sql(self, expression: exp.Where) -> str: +1460 this = self.indent(self.sql(expression, "this")) +1461 return f"{self.seg('WHERE')}{self.sep()}{this}" +1462 +1463 def window_sql(self, expression: exp.Window) -> str: +1464 this = self.sql(expression, "this") +1465 +1466 partition = self.partition_by_sql(expression) +1467 +1468 order = expression.args.get("order") +1469 order_sql = self.order_sql(order, flat=True) if order else "" +1470 +1471 partition_sql = partition + " " if partition and order else partition 1472 -1473 window_args = alias + partition_sql + order_sql + spec_sql -1474 -1475 return f"{this} ({window_args.strip()})" -1476 -1477 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: -1478 partition = self.expressions(expression, key="partition_by", flat=True) -1479 return f"PARTITION BY {partition}" if partition else "" -1480 -1481 def window_spec_sql(self, expression: exp.WindowSpec) -> str: -1482 kind = self.sql(expression, "kind") -1483 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") -1484 end = ( -1485 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") -1486 or "CURRENT ROW" -1487 ) -1488 return f"{kind} BETWEEN {start} AND {end}" +1473 spec = expression.args.get("spec") +1474 spec_sql = " " + self.window_spec_sql(spec) if spec else "" +1475 +1476 alias = self.sql(expression, "alias") +1477 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" +1478 +1479 if not partition and not order and not spec and alias: +1480 return f"{this} {alias}" +1481 +1482 window_args = alias + partition_sql + order_sql + spec_sql +1483 +1484 return f"{this} ({window_args.strip()})" +1485 +1486 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: +1487 partition = self.expressions(expression, key="partition_by", flat=True) +1488 return f"PARTITION BY {partition}" if partition else "" 1489 -1490 def withingroup_sql(self, expression: exp.WithinGroup) -> str: -1491 this = self.sql(expression, "this") -1492 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space -1493 return f"{this} WITHIN GROUP ({expression_sql})" -1494 -1495 def between_sql(self, expression: exp.Between) -> str: -1496 this = self.sql(expression, "this") -1497 low = self.sql(expression, "low") -1498 high = self.sql(expression, "high") -1499 return f"{this} BETWEEN {low} AND {high}" -1500 -1501 def bracket_sql(self, expression: exp.Bracket) -> str: -1502 expressions = apply_index_offset(expression.expressions, self.index_offset) -1503 expressions_sql = ", ".join(self.sql(e) for e in expressions) -1504 -1505 return f"{self.sql(expression, 'this')}[{expressions_sql}]" -1506 -1507 def all_sql(self, expression: exp.All) -> str: -1508 return f"ALL {self.wrap(expression)}" +1490 def window_spec_sql(self, expression: exp.WindowSpec) -> str: +1491 kind = self.sql(expression, "kind") +1492 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") +1493 end = ( +1494 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") +1495 or "CURRENT ROW" +1496 ) +1497 return f"{kind} BETWEEN {start} AND {end}" +1498 +1499 def withingroup_sql(self, expression: exp.WithinGroup) -> str: +1500 this = self.sql(expression, "this") +1501 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space +1502 return f"{this} WITHIN GROUP ({expression_sql})" +1503 +1504 def between_sql(self, expression: exp.Between) -> str: +1505 this = self.sql(expression, "this") +1506 low = self.sql(expression, "low") +1507 high = self.sql(expression, "high") +1508 return f"{this} BETWEEN {low} AND {high}" 1509 -1510 def any_sql(self, expression: exp.Any) -> str: -1511 this = self.sql(expression, "this") -1512 if isinstance(expression.this, exp.Subqueryable): -1513 this = self.wrap(this) -1514 return f"ANY {this}" +1510 def bracket_sql(self, expression: exp.Bracket) -> str: +1511 expressions = apply_index_offset(expression.expressions, self.index_offset) +1512 expressions_sql = ", ".join(self.sql(e) for e in expressions) +1513 +1514 return f"{self.sql(expression, 'this')}[{expressions_sql}]" 1515 -1516 def exists_sql(self, expression: exp.Exists) -> str: -1517 return f"EXISTS{self.wrap(expression)}" +1516 def all_sql(self, expression: exp.All) -> str: +1517 return f"ALL {self.wrap(expression)}" 1518 -1519 def case_sql(self, expression: exp.Case) -> str: +1519 def any_sql(self, expression: exp.Any) -> str: 1520 this = self.sql(expression, "this") -1521 statements = [f"CASE {this}" if this else "CASE"] -1522 -1523 for e in expression.args["ifs"]: -1524 statements.append(f"WHEN {self.sql(e, 'this')}") -1525 statements.append(f"THEN {self.sql(e, 'true')}") -1526 -1527 default = self.sql(expression, "default") -1528 -1529 if default: -1530 statements.append(f"ELSE {default}") +1521 if isinstance(expression.this, exp.Subqueryable): +1522 this = self.wrap(this) +1523 return f"ANY {this}" +1524 +1525 def exists_sql(self, expression: exp.Exists) -> str: +1526 return f"EXISTS{self.wrap(expression)}" +1527 +1528 def case_sql(self, expression: exp.Case) -> str: +1529 this = self.sql(expression, "this") +1530 statements = [f"CASE {this}" if this else "CASE"] 1531 -1532 statements.append("END") -1533 -1534 if self.pretty and self.text_width(statements) > self._max_text_width: -1535 return self.indent("\n".join(statements), skip_first=True, skip_last=True) -1536 -1537 return " ".join(statements) -1538 -1539 def constraint_sql(self, expression: exp.Constraint) -> str: -1540 this = self.sql(expression, "this") -1541 expressions = self.expressions(expression, flat=True) -1542 return f"CONSTRAINT {this} {expressions}" -1543 -1544 def extract_sql(self, expression: exp.Extract) -> str: -1545 this = self.sql(expression, "this") -1546 expression_sql = self.sql(expression, "expression") -1547 return f"EXTRACT({this} FROM {expression_sql})" -1548 -1549 def trim_sql(self, expression: exp.Trim) -> str: -1550 trim_type = self.sql(expression, "position") -1551 -1552 if trim_type == "LEADING": -1553 return self.func("LTRIM", expression.this) -1554 elif trim_type == "TRAILING": -1555 return self.func("RTRIM", expression.this) -1556 else: -1557 return self.func("TRIM", expression.this, expression.expression) -1558 -1559 def concat_sql(self, expression: exp.Concat) -> str: -1560 if len(expression.expressions) == 1: -1561 return self.sql(expression.expressions[0]) -1562 return self.function_fallback_sql(expression) -1563 -1564 def check_sql(self, expression: exp.Check) -> str: -1565 this = self.sql(expression, key="this") -1566 return f"CHECK ({this})" +1532 for e in expression.args["ifs"]: +1533 statements.append(f"WHEN {self.sql(e, 'this')}") +1534 statements.append(f"THEN {self.sql(e, 'true')}") +1535 +1536 default = self.sql(expression, "default") +1537 +1538 if default: +1539 statements.append(f"ELSE {default}") +1540 +1541 statements.append("END") +1542 +1543 if self.pretty and self.text_width(statements) > self._max_text_width: +1544 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1545 +1546 return " ".join(statements) +1547 +1548 def constraint_sql(self, expression: exp.Constraint) -> str: +1549 this = self.sql(expression, "this") +1550 expressions = self.expressions(expression, flat=True) +1551 return f"CONSTRAINT {this} {expressions}" +1552 +1553 def extract_sql(self, expression: exp.Extract) -> str: +1554 this = self.sql(expression, "this") +1555 expression_sql = self.sql(expression, "expression") +1556 return f"EXTRACT({this} FROM {expression_sql})" +1557 +1558 def trim_sql(self, expression: exp.Trim) -> str: +1559 trim_type = self.sql(expression, "position") +1560 +1561 if trim_type == "LEADING": +1562 return self.func("LTRIM", expression.this) +1563 elif trim_type == "TRAILING": +1564 return self.func("RTRIM", expression.this) +1565 else: +1566 return self.func("TRIM", expression.this, expression.expression) 1567 -1568 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: -1569 expressions = self.expressions(expression, flat=True) -1570 reference = self.sql(expression, "reference") -1571 reference = f" {reference}" if reference else "" -1572 delete = self.sql(expression, "delete") -1573 delete = f" ON DELETE {delete}" if delete else "" -1574 update = self.sql(expression, "update") -1575 update = f" ON UPDATE {update}" if update else "" -1576 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" -1577 -1578 def primarykey_sql(self, expression: exp.ForeignKey) -> str: -1579 expressions = self.expressions(expression, flat=True) -1580 options = self.expressions(expression, "options", flat=True, sep=" ") -1581 options = f" {options}" if options else "" -1582 return f"PRIMARY KEY ({expressions}){options}" -1583 -1584 def unique_sql(self, expression: exp.Unique) -> str: -1585 columns = self.expressions(expression, key="expressions") -1586 return f"UNIQUE ({columns})" -1587 -1588 def if_sql(self, expression: exp.If) -> str: -1589 return self.case_sql( -1590 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) -1591 ) +1568 def concat_sql(self, expression: exp.Concat) -> str: +1569 if len(expression.expressions) == 1: +1570 return self.sql(expression.expressions[0]) +1571 return self.function_fallback_sql(expression) +1572 +1573 def check_sql(self, expression: exp.Check) -> str: +1574 this = self.sql(expression, key="this") +1575 return f"CHECK ({this})" +1576 +1577 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: +1578 expressions = self.expressions(expression, flat=True) +1579 reference = self.sql(expression, "reference") +1580 reference = f" {reference}" if reference else "" +1581 delete = self.sql(expression, "delete") +1582 delete = f" ON DELETE {delete}" if delete else "" +1583 update = self.sql(expression, "update") +1584 update = f" ON UPDATE {update}" if update else "" +1585 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" +1586 +1587 def primarykey_sql(self, expression: exp.ForeignKey) -> str: +1588 expressions = self.expressions(expression, flat=True) +1589 options = self.expressions(expression, "options", flat=True, sep=" ") +1590 options = f" {options}" if options else "" +1591 return f"PRIMARY KEY ({expressions}){options}" 1592 -1593 def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str: -1594 return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}" -1595 -1596 def jsonobject_sql(self, expression: exp.JSONObject) -> str: -1597 expressions = self.expressions(expression) -1598 null_handling = expression.args.get("null_handling") -1599 null_handling = f" {null_handling}" if null_handling else "" -1600 unique_keys = expression.args.get("unique_keys") -1601 if unique_keys is not None: -1602 unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS" -1603 else: -1604 unique_keys = "" -1605 return_type = self.sql(expression, "return_type") -1606 return_type = f" RETURNING {return_type}" if return_type else "" -1607 format_json = " FORMAT JSON" if expression.args.get("format_json") else "" -1608 encoding = self.sql(expression, "encoding") -1609 encoding = f" ENCODING {encoding}" if encoding else "" -1610 return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})" -1611 -1612 def in_sql(self, expression: exp.In) -> str: -1613 query = expression.args.get("query") -1614 unnest = expression.args.get("unnest") -1615 field = expression.args.get("field") -1616 is_global = " GLOBAL" if expression.args.get("is_global") else "" -1617 -1618 if query: -1619 in_sql = self.wrap(query) -1620 elif unnest: -1621 in_sql = self.in_unnest_op(unnest) -1622 elif field: -1623 in_sql = self.sql(field) -1624 else: -1625 in_sql = f"({self.expressions(expression, flat=True)})" -1626 -1627 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" -1628 -1629 def in_unnest_op(self, unnest: exp.Unnest) -> str: -1630 return f"(SELECT {self.sql(unnest)})" +1593 def unique_sql(self, expression: exp.Unique) -> str: +1594 columns = self.expressions(expression, key="expressions") +1595 return f"UNIQUE ({columns})" +1596 +1597 def if_sql(self, expression: exp.If) -> str: +1598 return self.case_sql( +1599 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) +1600 ) +1601 +1602 def matchagainst_sql(self, expression: exp.MatchAgainst) -> str: +1603 modifier = expression.args.get("modifier") +1604 modifier = f" {modifier}" if modifier else "" +1605 return f"{self.func('MATCH', *expression.expressions)} AGAINST({self.sql(expression, 'this')}{modifier})" +1606 +1607 def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str: +1608 return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}" +1609 +1610 def jsonobject_sql(self, expression: exp.JSONObject) -> str: +1611 expressions = self.expressions(expression) +1612 null_handling = expression.args.get("null_handling") +1613 null_handling = f" {null_handling}" if null_handling else "" +1614 unique_keys = expression.args.get("unique_keys") +1615 if unique_keys is not None: +1616 unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS" +1617 else: +1618 unique_keys = "" +1619 return_type = self.sql(expression, "return_type") +1620 return_type = f" RETURNING {return_type}" if return_type else "" +1621 format_json = " FORMAT JSON" if expression.args.get("format_json") else "" +1622 encoding = self.sql(expression, "encoding") +1623 encoding = f" ENCODING {encoding}" if encoding else "" +1624 return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})" +1625 +1626 def in_sql(self, expression: exp.In) -> str: +1627 query = expression.args.get("query") +1628 unnest = expression.args.get("unnest") +1629 field = expression.args.get("field") +1630 is_global = " GLOBAL" if expression.args.get("is_global") else "" 1631 -1632 def interval_sql(self, expression: exp.Interval) -> str: -1633 this = expression.args.get("this") -1634 if this: -1635 this = ( -1636 f" {this}" -1637 if isinstance(this, exp.Literal) or isinstance(this, exp.Paren) -1638 else f" ({this})" -1639 ) -1640 else: -1641 this = "" -1642 unit = self.sql(expression, "unit") -1643 unit = f" {unit}" if unit else "" -1644 return f"INTERVAL{this}{unit}" +1632 if query: +1633 in_sql = self.wrap(query) +1634 elif unnest: +1635 in_sql = self.in_unnest_op(unnest) +1636 elif field: +1637 in_sql = self.sql(field) +1638 else: +1639 in_sql = f"({self.expressions(expression, flat=True)})" +1640 +1641 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" +1642 +1643 def in_unnest_op(self, unnest: exp.Unnest) -> str: +1644 return f"(SELECT {self.sql(unnest)})" 1645 -1646 def return_sql(self, expression: exp.Return) -> str: -1647 return f"RETURN {self.sql(expression, 'this')}" -1648 -1649 def reference_sql(self, expression: exp.Reference) -> str: -1650 this = self.sql(expression, "this") -1651 expressions = self.expressions(expression, flat=True) -1652 expressions = f"({expressions})" if expressions else "" -1653 options = self.expressions(expression, "options", flat=True, sep=" ") -1654 options = f" {options}" if options else "" -1655 return f"REFERENCES {this}{expressions}{options}" -1656 -1657 def anonymous_sql(self, expression: exp.Anonymous) -> str: -1658 return self.func(expression.name, *expression.expressions) +1646 def interval_sql(self, expression: exp.Interval) -> str: +1647 this = expression.args.get("this") +1648 if this: +1649 this = ( +1650 f" {this}" +1651 if isinstance(this, exp.Literal) or isinstance(this, exp.Paren) +1652 else f" ({this})" +1653 ) +1654 else: +1655 this = "" +1656 unit = self.sql(expression, "unit") +1657 unit = f" {unit}" if unit else "" +1658 return f"INTERVAL{this}{unit}" 1659 -1660 def paren_sql(self, expression: exp.Paren) -> str: -1661 if isinstance(expression.unnest(), exp.Select): -1662 sql = self.wrap(expression) -1663 else: -1664 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") -1665 sql = f"({sql}{self.seg(')', sep='')}" -1666 -1667 return self.prepend_ctes(expression, sql) -1668 -1669 def neg_sql(self, expression: exp.Neg) -> str: -1670 # This makes sure we don't convert "- - 5" to "--5", which is a comment -1671 this_sql = self.sql(expression, "this") -1672 sep = " " if this_sql[0] == "-" else "" -1673 return f"-{sep}{this_sql}" -1674 -1675 def not_sql(self, expression: exp.Not) -> str: -1676 return f"NOT {self.sql(expression, 'this')}" -1677 -1678 def alias_sql(self, expression: exp.Alias) -> str: -1679 to_sql = self.sql(expression, "alias") -1680 to_sql = f" AS {to_sql}" if to_sql else "" -1681 return f"{self.sql(expression, 'this')}{to_sql}" +1660 def return_sql(self, expression: exp.Return) -> str: +1661 return f"RETURN {self.sql(expression, 'this')}" +1662 +1663 def reference_sql(self, expression: exp.Reference) -> str: +1664 this = self.sql(expression, "this") +1665 expressions = self.expressions(expression, flat=True) +1666 expressions = f"({expressions})" if expressions else "" +1667 options = self.expressions(expression, "options", flat=True, sep=" ") +1668 options = f" {options}" if options else "" +1669 return f"REFERENCES {this}{expressions}{options}" +1670 +1671 def anonymous_sql(self, expression: exp.Anonymous) -> str: +1672 return self.func(expression.name, *expression.expressions) +1673 +1674 def paren_sql(self, expression: exp.Paren) -> str: +1675 if isinstance(expression.unnest(), exp.Select): +1676 sql = self.wrap(expression) +1677 else: +1678 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") +1679 sql = f"({sql}{self.seg(')', sep='')}" +1680 +1681 return self.prepend_ctes(expression, sql) 1682 -1683 def aliases_sql(self, expression: exp.Aliases) -> str: -1684 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" -1685 -1686 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: -1687 this = self.sql(expression, "this") -1688 zone = self.sql(expression, "zone") -1689 return f"{this} AT TIME ZONE {zone}" -1690 -1691 def add_sql(self, expression: exp.Add) -> str: -1692 return self.binary(expression, "+") -1693 -1694 def and_sql(self, expression: exp.And) -> str: -1695 return self.connector_sql(expression, "AND") +1683 def neg_sql(self, expression: exp.Neg) -> str: +1684 # This makes sure we don't convert "- - 5" to "--5", which is a comment +1685 this_sql = self.sql(expression, "this") +1686 sep = " " if this_sql[0] == "-" else "" +1687 return f"-{sep}{this_sql}" +1688 +1689 def not_sql(self, expression: exp.Not) -> str: +1690 return f"NOT {self.sql(expression, 'this')}" +1691 +1692 def alias_sql(self, expression: exp.Alias) -> str: +1693 to_sql = self.sql(expression, "alias") +1694 to_sql = f" AS {to_sql}" if to_sql else "" +1695 return f"{self.sql(expression, 'this')}{to_sql}" 1696 -1697 def connector_sql(self, expression: exp.Connector, op: str) -> str: -1698 if not self.pretty: -1699 return self.binary(expression, op) -1700 -1701 sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False)) -1702 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " -1703 return f"{sep}{op} ".join(sqls) +1697 def aliases_sql(self, expression: exp.Aliases) -> str: +1698 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" +1699 +1700 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: +1701 this = self.sql(expression, "this") +1702 zone = self.sql(expression, "zone") +1703 return f"{this} AT TIME ZONE {zone}" 1704 -1705 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: -1706 return self.binary(expression, "&") +1705 def add_sql(self, expression: exp.Add) -> str: +1706 return self.binary(expression, "+") 1707 -1708 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: -1709 return self.binary(expression, "<<") +1708 def and_sql(self, expression: exp.And) -> str: +1709 return self.connector_sql(expression, "AND") 1710 -1711 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: -1712 return f"~{self.sql(expression, 'this')}" -1713 -1714 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: -1715 return self.binary(expression, "|") -1716 -1717 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: -1718 return self.binary(expression, ">>") -1719 -1720 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: -1721 return self.binary(expression, "^") -1722 -1723 def cast_sql(self, expression: exp.Cast) -> str: -1724 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -1725 -1726 def currentdate_sql(self, expression: exp.CurrentDate) -> str: -1727 zone = self.sql(expression, "this") -1728 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" -1729 -1730 def collate_sql(self, expression: exp.Collate) -> str: -1731 return self.binary(expression, "COLLATE") -1732 -1733 def command_sql(self, expression: exp.Command) -> str: -1734 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" -1735 -1736 def comment_sql(self, expression: exp.Comment) -> str: -1737 this = self.sql(expression, "this") -1738 kind = expression.args["kind"] -1739 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " -1740 expression_sql = self.sql(expression, "expression") -1741 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" -1742 -1743 def transaction_sql(self, expression: exp.Transaction) -> str: -1744 return "BEGIN" -1745 -1746 def commit_sql(self, expression: exp.Commit) -> str: -1747 chain = expression.args.get("chain") -1748 if chain is not None: -1749 chain = " AND CHAIN" if chain else " AND NO CHAIN" -1750 -1751 return f"COMMIT{chain or ''}" -1752 -1753 def rollback_sql(self, expression: exp.Rollback) -> str: -1754 savepoint = expression.args.get("savepoint") -1755 savepoint = f" TO {savepoint}" if savepoint else "" -1756 return f"ROLLBACK{savepoint}" -1757 -1758 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: -1759 this = self.sql(expression, "this") -1760 -1761 dtype = self.sql(expression, "dtype") -1762 if dtype: -1763 collate = self.sql(expression, "collate") -1764 collate = f" COLLATE {collate}" if collate else "" -1765 using = self.sql(expression, "using") -1766 using = f" USING {using}" if using else "" -1767 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" -1768 -1769 default = self.sql(expression, "default") -1770 if default: -1771 return f"ALTER COLUMN {this} SET DEFAULT {default}" -1772 -1773 if not expression.args.get("drop"): -1774 self.unsupported("Unsupported ALTER COLUMN syntax") -1775 -1776 return f"ALTER COLUMN {this} DROP DEFAULT" -1777 -1778 def renametable_sql(self, expression: exp.RenameTable) -> str: -1779 this = self.sql(expression, "this") -1780 return f"RENAME TO {this}" -1781 -1782 def altertable_sql(self, expression: exp.AlterTable) -> str: -1783 actions = expression.args["actions"] -1784 -1785 if isinstance(actions[0], exp.ColumnDef): -1786 actions = self.expressions(expression, "actions", prefix="ADD COLUMN ") -1787 elif isinstance(actions[0], exp.Schema): -1788 actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ") -1789 elif isinstance(actions[0], exp.Delete): -1790 actions = self.expressions(expression, "actions", flat=True) -1791 else: -1792 actions = self.expressions(expression, "actions") -1793 -1794 exists = " IF EXISTS" if expression.args.get("exists") else "" -1795 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" -1796 -1797 def droppartition_sql(self, expression: exp.DropPartition) -> str: -1798 expressions = self.expressions(expression) -1799 exists = " IF EXISTS " if expression.args.get("exists") else " " -1800 return f"DROP{exists}{expressions}" -1801 -1802 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: -1803 this = self.sql(expression, "this") -1804 expression_ = self.sql(expression, "expression") -1805 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" -1806 -1807 enforced = expression.args.get("enforced") -1808 if enforced is not None: -1809 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" +1711 def connector_sql(self, expression: exp.Connector, op: str) -> str: +1712 if not self.pretty: +1713 return self.binary(expression, op) +1714 +1715 sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False)) +1716 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " +1717 return f"{sep}{op} ".join(sqls) +1718 +1719 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: +1720 return self.binary(expression, "&") +1721 +1722 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: +1723 return self.binary(expression, "<<") +1724 +1725 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: +1726 return f"~{self.sql(expression, 'this')}" +1727 +1728 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: +1729 return self.binary(expression, "|") +1730 +1731 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: +1732 return self.binary(expression, ">>") +1733 +1734 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: +1735 return self.binary(expression, "^") +1736 +1737 def cast_sql(self, expression: exp.Cast) -> str: +1738 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1739 +1740 def currentdate_sql(self, expression: exp.CurrentDate) -> str: +1741 zone = self.sql(expression, "this") +1742 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" +1743 +1744 def collate_sql(self, expression: exp.Collate) -> str: +1745 return self.binary(expression, "COLLATE") +1746 +1747 def command_sql(self, expression: exp.Command) -> str: +1748 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" +1749 +1750 def comment_sql(self, expression: exp.Comment) -> str: +1751 this = self.sql(expression, "this") +1752 kind = expression.args["kind"] +1753 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " +1754 expression_sql = self.sql(expression, "expression") +1755 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" +1756 +1757 def transaction_sql(self, expression: exp.Transaction) -> str: +1758 return "BEGIN" +1759 +1760 def commit_sql(self, expression: exp.Commit) -> str: +1761 chain = expression.args.get("chain") +1762 if chain is not None: +1763 chain = " AND CHAIN" if chain else " AND NO CHAIN" +1764 +1765 return f"COMMIT{chain or ''}" +1766 +1767 def rollback_sql(self, expression: exp.Rollback) -> str: +1768 savepoint = expression.args.get("savepoint") +1769 savepoint = f" TO {savepoint}" if savepoint else "" +1770 return f"ROLLBACK{savepoint}" +1771 +1772 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: +1773 this = self.sql(expression, "this") +1774 +1775 dtype = self.sql(expression, "dtype") +1776 if dtype: +1777 collate = self.sql(expression, "collate") +1778 collate = f" COLLATE {collate}" if collate else "" +1779 using = self.sql(expression, "using") +1780 using = f" USING {using}" if using else "" +1781 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" +1782 +1783 default = self.sql(expression, "default") +1784 if default: +1785 return f"ALTER COLUMN {this} SET DEFAULT {default}" +1786 +1787 if not expression.args.get("drop"): +1788 self.unsupported("Unsupported ALTER COLUMN syntax") +1789 +1790 return f"ALTER COLUMN {this} DROP DEFAULT" +1791 +1792 def renametable_sql(self, expression: exp.RenameTable) -> str: +1793 this = self.sql(expression, "this") +1794 return f"RENAME TO {this}" +1795 +1796 def altertable_sql(self, expression: exp.AlterTable) -> str: +1797 actions = expression.args["actions"] +1798 +1799 if isinstance(actions[0], exp.ColumnDef): +1800 actions = self.expressions(expression, "actions", prefix="ADD COLUMN ") +1801 elif isinstance(actions[0], exp.Schema): +1802 actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ") +1803 elif isinstance(actions[0], exp.Delete): +1804 actions = self.expressions(expression, "actions", flat=True) +1805 else: +1806 actions = self.expressions(expression, "actions") +1807 +1808 exists = " IF EXISTS" if expression.args.get("exists") else "" +1809 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" 1810 -1811 return f"{add_constraint} {expression_}" -1812 -1813 def distinct_sql(self, expression: exp.Distinct) -> str: -1814 this = self.expressions(expression, flat=True) -1815 this = f" {this}" if this else "" -1816 -1817 on = self.sql(expression, "on") -1818 on = f" ON {on}" if on else "" -1819 return f"DISTINCT{this}{on}" +1811 def droppartition_sql(self, expression: exp.DropPartition) -> str: +1812 expressions = self.expressions(expression) +1813 exists = " IF EXISTS " if expression.args.get("exists") else " " +1814 return f"DROP{exists}{expressions}" +1815 +1816 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: +1817 this = self.sql(expression, "this") +1818 expression_ = self.sql(expression, "expression") +1819 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" 1820 -1821 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: -1822 return f"{self.sql(expression, 'this')} IGNORE NULLS" -1823 -1824 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: -1825 return f"{self.sql(expression, 'this')} RESPECT NULLS" +1821 enforced = expression.args.get("enforced") +1822 if enforced is not None: +1823 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" +1824 +1825 return f"{add_constraint} {expression_}" 1826 -1827 def intdiv_sql(self, expression: exp.IntDiv) -> str: -1828 return self.sql( -1829 exp.Cast( -1830 this=exp.Div(this=expression.this, expression=expression.expression), -1831 to=exp.DataType(this=exp.DataType.Type.INT), -1832 ) -1833 ) +1827 def distinct_sql(self, expression: exp.Distinct) -> str: +1828 this = self.expressions(expression, flat=True) +1829 this = f" {this}" if this else "" +1830 +1831 on = self.sql(expression, "on") +1832 on = f" ON {on}" if on else "" +1833 return f"DISTINCT{this}{on}" 1834 -1835 def dpipe_sql(self, expression: exp.DPipe) -> str: -1836 return self.binary(expression, "||") +1835 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: +1836 return f"{self.sql(expression, 'this')} IGNORE NULLS" 1837 -1838 def div_sql(self, expression: exp.Div) -> str: -1839 return self.binary(expression, "/") +1838 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: +1839 return f"{self.sql(expression, 'this')} RESPECT NULLS" 1840 -1841 def overlaps_sql(self, expression: exp.Overlaps) -> str: -1842 return self.binary(expression, "OVERLAPS") -1843 -1844 def distance_sql(self, expression: exp.Distance) -> str: -1845 return self.binary(expression, "<->") -1846 -1847 def dot_sql(self, expression: exp.Dot) -> str: -1848 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" -1849 -1850 def eq_sql(self, expression: exp.EQ) -> str: -1851 return self.binary(expression, "=") -1852 -1853 def escape_sql(self, expression: exp.Escape) -> str: -1854 return self.binary(expression, "ESCAPE") -1855 -1856 def glob_sql(self, expression: exp.Glob) -> str: -1857 return self.binary(expression, "GLOB") -1858 -1859 def gt_sql(self, expression: exp.GT) -> str: -1860 return self.binary(expression, ">") -1861 -1862 def gte_sql(self, expression: exp.GTE) -> str: -1863 return self.binary(expression, ">=") -1864 -1865 def ilike_sql(self, expression: exp.ILike) -> str: -1866 return self.binary(expression, "ILIKE") -1867 -1868 def is_sql(self, expression: exp.Is) -> str: -1869 return self.binary(expression, "IS") -1870 -1871 def like_sql(self, expression: exp.Like) -> str: -1872 return self.binary(expression, "LIKE") -1873 -1874 def similarto_sql(self, expression: exp.SimilarTo) -> str: -1875 return self.binary(expression, "SIMILAR TO") -1876 -1877 def lt_sql(self, expression: exp.LT) -> str: -1878 return self.binary(expression, "<") -1879 -1880 def lte_sql(self, expression: exp.LTE) -> str: -1881 return self.binary(expression, "<=") -1882 -1883 def mod_sql(self, expression: exp.Mod) -> str: -1884 return self.binary(expression, "%") -1885 -1886 def mul_sql(self, expression: exp.Mul) -> str: -1887 return self.binary(expression, "*") -1888 -1889 def neq_sql(self, expression: exp.NEQ) -> str: -1890 return self.binary(expression, "<>") -1891 -1892 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: -1893 return self.binary(expression, "IS NOT DISTINCT FROM") -1894 -1895 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: -1896 return self.binary(expression, "IS DISTINCT FROM") -1897 -1898 def or_sql(self, expression: exp.Or) -> str: -1899 return self.connector_sql(expression, "OR") -1900 -1901 def slice_sql(self, expression: exp.Slice) -> str: -1902 return self.binary(expression, ":") -1903 -1904 def sub_sql(self, expression: exp.Sub) -> str: -1905 return self.binary(expression, "-") -1906 -1907 def trycast_sql(self, expression: exp.TryCast) -> str: -1908 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -1909 -1910 def use_sql(self, expression: exp.Use) -> str: -1911 kind = self.sql(expression, "kind") -1912 kind = f" {kind}" if kind else "" -1913 this = self.sql(expression, "this") -1914 this = f" {this}" if this else "" -1915 return f"USE{kind}{this}" -1916 -1917 def binary(self, expression: exp.Binary, op: str) -> str: -1918 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" -1919 -1920 def function_fallback_sql(self, expression: exp.Func) -> str: -1921 args = [] -1922 for arg_value in expression.args.values(): -1923 if isinstance(arg_value, list): -1924 for value in arg_value: -1925 args.append(value) -1926 else: -1927 args.append(arg_value) -1928 -1929 return self.func(expression.sql_name(), *args) -1930 -1931 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: -1932 return f"{self.normalize_func(name)}({self.format_args(*args)})" -1933 -1934 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: -1935 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) -1936 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: -1937 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) -1938 return ", ".join(arg_sqls) +1841 def intdiv_sql(self, expression: exp.IntDiv) -> str: +1842 return self.sql( +1843 exp.Cast( +1844 this=exp.Div(this=expression.this, expression=expression.expression), +1845 to=exp.DataType(this=exp.DataType.Type.INT), +1846 ) +1847 ) +1848 +1849 def dpipe_sql(self, expression: exp.DPipe) -> str: +1850 return self.binary(expression, "||") +1851 +1852 def div_sql(self, expression: exp.Div) -> str: +1853 return self.binary(expression, "/") +1854 +1855 def overlaps_sql(self, expression: exp.Overlaps) -> str: +1856 return self.binary(expression, "OVERLAPS") +1857 +1858 def distance_sql(self, expression: exp.Distance) -> str: +1859 return self.binary(expression, "<->") +1860 +1861 def dot_sql(self, expression: exp.Dot) -> str: +1862 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" +1863 +1864 def eq_sql(self, expression: exp.EQ) -> str: +1865 return self.binary(expression, "=") +1866 +1867 def escape_sql(self, expression: exp.Escape) -> str: +1868 return self.binary(expression, "ESCAPE") +1869 +1870 def glob_sql(self, expression: exp.Glob) -> str: +1871 return self.binary(expression, "GLOB") +1872 +1873 def gt_sql(self, expression: exp.GT) -> str: +1874 return self.binary(expression, ">") +1875 +1876 def gte_sql(self, expression: exp.GTE) -> str: +1877 return self.binary(expression, ">=") +1878 +1879 def ilike_sql(self, expression: exp.ILike) -> str: +1880 return self.binary(expression, "ILIKE") +1881 +1882 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: +1883 return self.binary(expression, "ILIKE ANY") +1884 +1885 def is_sql(self, expression: exp.Is) -> str: +1886 return self.binary(expression, "IS") +1887 +1888 def like_sql(self, expression: exp.Like) -> str: +1889 return self.binary(expression, "LIKE") +1890 +1891 def likeany_sql(self, expression: exp.LikeAny) -> str: +1892 return self.binary(expression, "LIKE ANY") +1893 +1894 def similarto_sql(self, expression: exp.SimilarTo) -> str: +1895 return self.binary(expression, "SIMILAR TO") +1896 +1897 def lt_sql(self, expression: exp.LT) -> str: +1898 return self.binary(expression, "<") +1899 +1900 def lte_sql(self, expression: exp.LTE) -> str: +1901 return self.binary(expression, "<=") +1902 +1903 def mod_sql(self, expression: exp.Mod) -> str: +1904 return self.binary(expression, "%") +1905 +1906 def mul_sql(self, expression: exp.Mul) -> str: +1907 return self.binary(expression, "*") +1908 +1909 def neq_sql(self, expression: exp.NEQ) -> str: +1910 return self.binary(expression, "<>") +1911 +1912 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: +1913 return self.binary(expression, "IS NOT DISTINCT FROM") +1914 +1915 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: +1916 return self.binary(expression, "IS DISTINCT FROM") +1917 +1918 def or_sql(self, expression: exp.Or) -> str: +1919 return self.connector_sql(expression, "OR") +1920 +1921 def slice_sql(self, expression: exp.Slice) -> str: +1922 return self.binary(expression, ":") +1923 +1924 def sub_sql(self, expression: exp.Sub) -> str: +1925 return self.binary(expression, "-") +1926 +1927 def trycast_sql(self, expression: exp.TryCast) -> str: +1928 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1929 +1930 def use_sql(self, expression: exp.Use) -> str: +1931 kind = self.sql(expression, "kind") +1932 kind = f" {kind}" if kind else "" +1933 this = self.sql(expression, "this") +1934 this = f" {this}" if this else "" +1935 return f"USE{kind}{this}" +1936 +1937 def binary(self, expression: exp.Binary, op: str) -> str: +1938 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" 1939 -1940 def text_width(self, args: t.Iterable) -> int: -1941 return sum(len(arg) for arg in args) -1942 -1943 def format_time(self, expression: exp.Expression) -> t.Optional[str]: -1944 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) -1945 -1946 def expressions( -1947 self, -1948 expression: exp.Expression, -1949 key: t.Optional[str] = None, -1950 flat: bool = False, -1951 indent: bool = True, -1952 sep: str = ", ", -1953 prefix: str = "", -1954 ) -> str: -1955 expressions = expression.args.get(key or "expressions") -1956 -1957 if not expressions: -1958 return "" +1940 def function_fallback_sql(self, expression: exp.Func) -> str: +1941 args = [] +1942 for arg_value in expression.args.values(): +1943 if isinstance(arg_value, list): +1944 for value in arg_value: +1945 args.append(value) +1946 else: +1947 args.append(arg_value) +1948 +1949 return self.func(expression.sql_name(), *args) +1950 +1951 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: +1952 return f"{self.normalize_func(name)}({self.format_args(*args)})" +1953 +1954 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: +1955 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) +1956 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: +1957 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) +1958 return ", ".join(arg_sqls) 1959 -1960 if flat: -1961 return sep.join(self.sql(e) for e in expressions) +1960 def text_width(self, args: t.Iterable) -> int: +1961 return sum(len(arg) for arg in args) 1962 -1963 num_sqls = len(expressions) -1964 -1965 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly -1966 pad = " " * self.pad -1967 stripped_sep = sep.strip() -1968 -1969 result_sqls = [] -1970 for i, e in enumerate(expressions): -1971 sql = self.sql(e, comment=False) -1972 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" -1973 -1974 if self.pretty: -1975 if self._leading_comma: -1976 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") -1977 else: -1978 result_sqls.append( -1979 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" -1980 ) -1981 else: -1982 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") -1983 -1984 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) -1985 return self.indent(result_sql, skip_first=False) if indent else result_sql -1986 -1987 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: -1988 flat = flat or isinstance(expression.parent, exp.Properties) -1989 expressions_sql = self.expressions(expression, flat=flat) -1990 if flat: -1991 return f"{op} {expressions_sql}" -1992 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" +1963 def format_time(self, expression: exp.Expression) -> t.Optional[str]: +1964 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) +1965 +1966 def expressions( +1967 self, +1968 expression: exp.Expression, +1969 key: t.Optional[str] = None, +1970 flat: bool = False, +1971 indent: bool = True, +1972 sep: str = ", ", +1973 prefix: str = "", +1974 ) -> str: +1975 expressions = expression.args.get(key or "expressions") +1976 +1977 if not expressions: +1978 return "" +1979 +1980 if flat: +1981 return sep.join(self.sql(e) for e in expressions) +1982 +1983 num_sqls = len(expressions) +1984 +1985 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly +1986 pad = " " * self.pad +1987 stripped_sep = sep.strip() +1988 +1989 result_sqls = [] +1990 for i, e in enumerate(expressions): +1991 sql = self.sql(e, comment=False) +1992 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" 1993 -1994 def naked_property(self, expression: exp.Property) -> str: -1995 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) -1996 if not property_name: -1997 self.unsupported(f"Unsupported property {expression.__class__.__name__}") -1998 return f"{property_name} {self.sql(expression, 'this')}" -1999 -2000 def set_operation(self, expression: exp.Expression, op: str) -> str: -2001 this = self.sql(expression, "this") -2002 op = self.seg(op) -2003 return self.query_modifiers( -2004 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" -2005 ) +1994 if self.pretty: +1995 if self._leading_comma: +1996 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") +1997 else: +1998 result_sqls.append( +1999 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" +2000 ) +2001 else: +2002 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") +2003 +2004 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) +2005 return self.indent(result_sql, skip_first=False) if indent else result_sql 2006 -2007 def tag_sql(self, expression: exp.Tag) -> str: -2008 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" -2009 -2010 def token_sql(self, token_type: TokenType) -> str: -2011 return self.TOKEN_MAPPING.get(token_type, token_type.name) -2012 -2013 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: -2014 this = self.sql(expression, "this") -2015 expressions = self.no_identify(self.expressions, expression) -2016 expressions = ( -2017 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" -2018 ) -2019 return f"{this}{expressions}" -2020 -2021 def joinhint_sql(self, expression: exp.JoinHint) -> str: -2022 this = self.sql(expression, "this") -2023 expressions = self.expressions(expression, flat=True) -2024 return f"{this}({expressions})" -2025 -2026 def kwarg_sql(self, expression: exp.Kwarg) -> str: -2027 return self.binary(expression, "=>") -2028 -2029 def when_sql(self, expression: exp.When) -> str: -2030 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" -2031 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" -2032 condition = self.sql(expression, "condition") -2033 condition = f" AND {condition}" if condition else "" -2034 -2035 then_expression = expression.args.get("then") -2036 if isinstance(then_expression, exp.Insert): -2037 then = f"INSERT {self.sql(then_expression, 'this')}" -2038 if "expression" in then_expression.args: -2039 then += f" VALUES {self.sql(then_expression, 'expression')}" -2040 elif isinstance(then_expression, exp.Update): -2041 if isinstance(then_expression.args.get("expressions"), exp.Star): -2042 then = f"UPDATE {self.sql(then_expression, 'expressions')}" -2043 else: -2044 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" -2045 else: -2046 then = self.sql(then_expression) -2047 return f"WHEN {matched}{source}{condition} THEN {then}" +2007 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: +2008 flat = flat or isinstance(expression.parent, exp.Properties) +2009 expressions_sql = self.expressions(expression, flat=flat) +2010 if flat: +2011 return f"{op} {expressions_sql}" +2012 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" +2013 +2014 def naked_property(self, expression: exp.Property) -> str: +2015 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) +2016 if not property_name: +2017 self.unsupported(f"Unsupported property {expression.__class__.__name__}") +2018 return f"{property_name} {self.sql(expression, 'this')}" +2019 +2020 def set_operation(self, expression: exp.Expression, op: str) -> str: +2021 this = self.sql(expression, "this") +2022 op = self.seg(op) +2023 return self.query_modifiers( +2024 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" +2025 ) +2026 +2027 def tag_sql(self, expression: exp.Tag) -> str: +2028 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" +2029 +2030 def token_sql(self, token_type: TokenType) -> str: +2031 return self.TOKEN_MAPPING.get(token_type, token_type.name) +2032 +2033 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: +2034 this = self.sql(expression, "this") +2035 expressions = self.no_identify(self.expressions, expression) +2036 expressions = ( +2037 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" +2038 ) +2039 return f"{this}{expressions}" +2040 +2041 def joinhint_sql(self, expression: exp.JoinHint) -> str: +2042 this = self.sql(expression, "this") +2043 expressions = self.expressions(expression, flat=True) +2044 return f"{this}({expressions})" +2045 +2046 def kwarg_sql(self, expression: exp.Kwarg) -> str: +2047 return self.binary(expression, "=>") 2048 -2049 def merge_sql(self, expression: exp.Merge) -> str: -2050 this = self.sql(expression, "this") -2051 using = f"USING {self.sql(expression, 'using')}" -2052 on = f"ON {self.sql(expression, 'on')}" -2053 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" +2049 def when_sql(self, expression: exp.When) -> str: +2050 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" +2051 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" +2052 condition = self.sql(expression, "condition") +2053 condition = f" AND {condition}" if condition else "" 2054 -2055 def tochar_sql(self, expression: exp.ToChar) -> str: -2056 if expression.args.get("format"): -2057 self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function") -2058 -2059 return self.sql(exp.cast(expression.this, "text")) +2055 then_expression = expression.args.get("then") +2056 if isinstance(then_expression, exp.Insert): +2057 then = f"INSERT {self.sql(then_expression, 'this')}" +2058 if "expression" in then_expression.args: +2059 then += f" VALUES {self.sql(then_expression, 'expression')}" +2060 elif isinstance(then_expression, exp.Update): +2061 if isinstance(then_expression.args.get("expressions"), exp.Star): +2062 then = f"UPDATE {self.sql(then_expression, 'expressions')}" +2063 else: +2064 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" +2065 else: +2066 then = self.sql(then_expression) +2067 return f"WHEN {matched}{source}{condition} THEN {then}" +2068 +2069 def merge_sql(self, expression: exp.Merge) -> str: +2070 this = self.sql(expression, "this") +2071 using = f"USING {self.sql(expression, 'using')}" +2072 on = f"ON {self.sql(expression, 'on')}" +2073 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" +2074 +2075 def tochar_sql(self, expression: exp.ToChar) -> str: +2076 if expression.args.get("format"): +2077 self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function") +2078 +2079 return self.sql(exp.cast(expression.this, "text"))
    @@ -3238,1597 +3270,1617 @@
    467 if part 468 ) 469 - 470 def columndef_sql(self, expression: exp.ColumnDef) -> str: - 471 column = self.sql(expression, "this") - 472 kind = self.sql(expression, "kind") - 473 constraints = self.expressions(expression, key="constraints", sep=" ", flat=True) - 474 exists = "IF NOT EXISTS " if expression.args.get("exists") else "" - 475 kind = f" {kind}" if kind else "" - 476 constraints = f" {constraints}" if constraints else "" - 477 - 478 return f"{exists}{column}{kind}{constraints}" - 479 - 480 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: - 481 this = self.sql(expression, "this") - 482 kind_sql = self.sql(expression, "kind") - 483 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql - 484 - 485 def autoincrementcolumnconstraint_sql(self, _) -> str: - 486 return self.token_sql(TokenType.AUTO_INCREMENT) + 470 def columnposition_sql(self, expression: exp.ColumnPosition) -> str: + 471 this = self.sql(expression, "this") + 472 this = f" {this}" if this else "" + 473 position = self.sql(expression, "position") + 474 return f"{position}{this}" + 475 + 476 def columndef_sql(self, expression: exp.ColumnDef) -> str: + 477 column = self.sql(expression, "this") + 478 kind = self.sql(expression, "kind") + 479 constraints = self.expressions(expression, key="constraints", sep=" ", flat=True) + 480 exists = "IF NOT EXISTS " if expression.args.get("exists") else "" + 481 kind = f" {kind}" if kind else "" + 482 constraints = f" {constraints}" if constraints else "" + 483 position = self.sql(expression, "position") + 484 position = f" {position}" if position else "" + 485 + 486 return f"{exists}{column}{kind}{constraints}{position}" 487 - 488 def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str: - 489 if isinstance(expression.this, list): - 490 this = self.wrap(self.expressions(expression, key="this", flat=True)) - 491 else: - 492 this = self.sql(expression, "this") - 493 - 494 return f"COMPRESS {this}" + 488 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: + 489 this = self.sql(expression, "this") + 490 kind_sql = self.sql(expression, "kind") + 491 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql + 492 + 493 def autoincrementcolumnconstraint_sql(self, _) -> str: + 494 return self.token_sql(TokenType.AUTO_INCREMENT) 495 - 496 def generatedasidentitycolumnconstraint_sql( - 497 self, expression: exp.GeneratedAsIdentityColumnConstraint - 498 ) -> str: - 499 this = "" - 500 if expression.this is not None: - 501 this = " ALWAYS " if expression.this else " BY DEFAULT " - 502 start = expression.args.get("start") - 503 start = f"START WITH {start}" if start else "" - 504 increment = expression.args.get("increment") - 505 increment = f" INCREMENT BY {increment}" if increment else "" - 506 minvalue = expression.args.get("minvalue") - 507 minvalue = f" MINVALUE {minvalue}" if minvalue else "" - 508 maxvalue = expression.args.get("maxvalue") - 509 maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else "" - 510 cycle = expression.args.get("cycle") - 511 cycle_sql = "" - 512 if cycle is not None: - 513 cycle_sql = f"{' NO' if not cycle else ''} CYCLE" - 514 cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql - 515 sequence_opts = "" - 516 if start or increment or cycle_sql: - 517 sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}" - 518 sequence_opts = f" ({sequence_opts.strip()})" - 519 return f"GENERATED{this}AS IDENTITY{sequence_opts}" - 520 - 521 def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str: - 522 return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL" - 523 - 524 def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str: - 525 desc = expression.args.get("desc") - 526 if desc is not None: - 527 return f"PRIMARY KEY{' DESC' if desc else ' ASC'}" - 528 return f"PRIMARY KEY" - 529 - 530 def uniquecolumnconstraint_sql(self, _) -> str: - 531 return "UNIQUE" - 532 - 533 def create_sql(self, expression: exp.Create) -> str: - 534 kind = self.sql(expression, "kind").upper() - 535 properties = expression.args.get("properties") - 536 properties_exp = expression.copy() - 537 properties_locs = self.locate_properties(properties) if properties else {} - 538 if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get( - 539 exp.Properties.Location.POST_WITH - 540 ): - 541 properties_exp.set( - 542 "properties", - 543 exp.Properties( - 544 expressions=[ - 545 *properties_locs[exp.Properties.Location.POST_SCHEMA], - 546 *properties_locs[exp.Properties.Location.POST_WITH], - 547 ] - 548 ), - 549 ) - 550 if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME): - 551 this_name = self.sql(expression.this, "this") - 552 this_properties = self.properties( - 553 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]), - 554 wrapped=False, - 555 ) - 556 this_schema = f"({self.expressions(expression.this)})" - 557 this = f"{this_name}, {this_properties} {this_schema}" - 558 properties_sql = "" - 559 else: - 560 this = self.sql(expression, "this") - 561 properties_sql = self.sql(properties_exp, "properties") - 562 begin = " BEGIN" if expression.args.get("begin") else "" - 563 expression_sql = self.sql(expression, "expression") - 564 if expression_sql: - 565 expression_sql = f"{begin}{self.sep()}{expression_sql}" - 566 - 567 if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return): - 568 if properties_locs.get(exp.Properties.Location.POST_ALIAS): - 569 postalias_props_sql = self.properties( - 570 exp.Properties( - 571 expressions=properties_locs[exp.Properties.Location.POST_ALIAS] - 572 ), - 573 wrapped=False, - 574 ) - 575 expression_sql = f" AS {postalias_props_sql}{expression_sql}" - 576 else: - 577 expression_sql = f" AS{expression_sql}" - 578 - 579 postindex_props_sql = "" - 580 if properties_locs.get(exp.Properties.Location.POST_INDEX): - 581 postindex_props_sql = self.properties( - 582 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]), - 583 wrapped=False, - 584 prefix=" ", - 585 ) + 496 def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str: + 497 if isinstance(expression.this, list): + 498 this = self.wrap(self.expressions(expression, key="this", flat=True)) + 499 else: + 500 this = self.sql(expression, "this") + 501 + 502 return f"COMPRESS {this}" + 503 + 504 def generatedasidentitycolumnconstraint_sql( + 505 self, expression: exp.GeneratedAsIdentityColumnConstraint + 506 ) -> str: + 507 this = "" + 508 if expression.this is not None: + 509 this = " ALWAYS " if expression.this else " BY DEFAULT " + 510 start = expression.args.get("start") + 511 start = f"START WITH {start}" if start else "" + 512 increment = expression.args.get("increment") + 513 increment = f" INCREMENT BY {increment}" if increment else "" + 514 minvalue = expression.args.get("minvalue") + 515 minvalue = f" MINVALUE {minvalue}" if minvalue else "" + 516 maxvalue = expression.args.get("maxvalue") + 517 maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else "" + 518 cycle = expression.args.get("cycle") + 519 cycle_sql = "" + 520 if cycle is not None: + 521 cycle_sql = f"{' NO' if not cycle else ''} CYCLE" + 522 cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql + 523 sequence_opts = "" + 524 if start or increment or cycle_sql: + 525 sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}" + 526 sequence_opts = f" ({sequence_opts.strip()})" + 527 return f"GENERATED{this}AS IDENTITY{sequence_opts}" + 528 + 529 def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str: + 530 return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL" + 531 + 532 def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str: + 533 desc = expression.args.get("desc") + 534 if desc is not None: + 535 return f"PRIMARY KEY{' DESC' if desc else ' ASC'}" + 536 return f"PRIMARY KEY" + 537 + 538 def uniquecolumnconstraint_sql(self, _) -> str: + 539 return "UNIQUE" + 540 + 541 def create_sql(self, expression: exp.Create) -> str: + 542 kind = self.sql(expression, "kind").upper() + 543 properties = expression.args.get("properties") + 544 properties_exp = expression.copy() + 545 properties_locs = self.locate_properties(properties) if properties else {} + 546 if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get( + 547 exp.Properties.Location.POST_WITH + 548 ): + 549 properties_exp.set( + 550 "properties", + 551 exp.Properties( + 552 expressions=[ + 553 *properties_locs[exp.Properties.Location.POST_SCHEMA], + 554 *properties_locs[exp.Properties.Location.POST_WITH], + 555 ] + 556 ), + 557 ) + 558 if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME): + 559 this_name = self.sql(expression.this, "this") + 560 this_properties = self.properties( + 561 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]), + 562 wrapped=False, + 563 ) + 564 this_schema = f"({self.expressions(expression.this)})" + 565 this = f"{this_name}, {this_properties} {this_schema}" + 566 properties_sql = "" + 567 else: + 568 this = self.sql(expression, "this") + 569 properties_sql = self.sql(properties_exp, "properties") + 570 begin = " BEGIN" if expression.args.get("begin") else "" + 571 expression_sql = self.sql(expression, "expression") + 572 if expression_sql: + 573 expression_sql = f"{begin}{self.sep()}{expression_sql}" + 574 + 575 if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return): + 576 if properties_locs.get(exp.Properties.Location.POST_ALIAS): + 577 postalias_props_sql = self.properties( + 578 exp.Properties( + 579 expressions=properties_locs[exp.Properties.Location.POST_ALIAS] + 580 ), + 581 wrapped=False, + 582 ) + 583 expression_sql = f" AS {postalias_props_sql}{expression_sql}" + 584 else: + 585 expression_sql = f" AS{expression_sql}" 586 - 587 indexes = expression.args.get("indexes") - 588 if indexes: - 589 indexes_sql: t.List[str] = [] - 590 for index in indexes: - 591 ind_unique = " UNIQUE" if index.args.get("unique") else "" - 592 ind_primary = " PRIMARY" if index.args.get("primary") else "" - 593 ind_amp = " AMP" if index.args.get("amp") else "" - 594 ind_name = f" {index.name}" if index.name else "" - 595 ind_columns = ( - 596 f' ({self.expressions(index, key="columns", flat=True)})' - 597 if index.args.get("columns") - 598 else "" - 599 ) - 600 ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}" - 601 - 602 if indexes_sql: - 603 indexes_sql.append(ind_sql) - 604 else: - 605 indexes_sql.append( - 606 f"{ind_sql}{postindex_props_sql}" - 607 if index.args.get("primary") - 608 else f"{postindex_props_sql}{ind_sql}" - 609 ) - 610 - 611 index_sql = "".join(indexes_sql) - 612 else: - 613 index_sql = postindex_props_sql - 614 - 615 replace = " OR REPLACE" if expression.args.get("replace") else "" - 616 unique = " UNIQUE" if expression.args.get("unique") else "" - 617 volatile = " VOLATILE" if expression.args.get("volatile") else "" + 587 postindex_props_sql = "" + 588 if properties_locs.get(exp.Properties.Location.POST_INDEX): + 589 postindex_props_sql = self.properties( + 590 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]), + 591 wrapped=False, + 592 prefix=" ", + 593 ) + 594 + 595 indexes = expression.args.get("indexes") + 596 if indexes: + 597 indexes_sql: t.List[str] = [] + 598 for index in indexes: + 599 ind_unique = " UNIQUE" if index.args.get("unique") else "" + 600 ind_primary = " PRIMARY" if index.args.get("primary") else "" + 601 ind_amp = " AMP" if index.args.get("amp") else "" + 602 ind_name = f" {index.name}" if index.name else "" + 603 ind_columns = ( + 604 f' ({self.expressions(index, key="columns", flat=True)})' + 605 if index.args.get("columns") + 606 else "" + 607 ) + 608 ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}" + 609 + 610 if indexes_sql: + 611 indexes_sql.append(ind_sql) + 612 else: + 613 indexes_sql.append( + 614 f"{ind_sql}{postindex_props_sql}" + 615 if index.args.get("primary") + 616 else f"{postindex_props_sql}{ind_sql}" + 617 ) 618 - 619 postcreate_props_sql = "" - 620 if properties_locs.get(exp.Properties.Location.POST_CREATE): - 621 postcreate_props_sql = self.properties( - 622 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]), - 623 sep=" ", - 624 prefix=" ", - 625 wrapped=False, - 626 ) - 627 - 628 modifiers = "".join((replace, unique, volatile, postcreate_props_sql)) - 629 - 630 postexpression_props_sql = "" - 631 if properties_locs.get(exp.Properties.Location.POST_EXPRESSION): - 632 postexpression_props_sql = self.properties( - 633 exp.Properties( - 634 expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION] - 635 ), - 636 sep=" ", - 637 prefix=" ", - 638 wrapped=False, - 639 ) - 640 - 641 exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else "" - 642 no_schema_binding = ( - 643 " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else "" - 644 ) - 645 - 646 expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}" - 647 return self.prepend_ctes(expression, expression_sql) + 619 index_sql = "".join(indexes_sql) + 620 else: + 621 index_sql = postindex_props_sql + 622 + 623 replace = " OR REPLACE" if expression.args.get("replace") else "" + 624 unique = " UNIQUE" if expression.args.get("unique") else "" + 625 volatile = " VOLATILE" if expression.args.get("volatile") else "" + 626 + 627 postcreate_props_sql = "" + 628 if properties_locs.get(exp.Properties.Location.POST_CREATE): + 629 postcreate_props_sql = self.properties( + 630 exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]), + 631 sep=" ", + 632 prefix=" ", + 633 wrapped=False, + 634 ) + 635 + 636 modifiers = "".join((replace, unique, volatile, postcreate_props_sql)) + 637 + 638 postexpression_props_sql = "" + 639 if properties_locs.get(exp.Properties.Location.POST_EXPRESSION): + 640 postexpression_props_sql = self.properties( + 641 exp.Properties( + 642 expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION] + 643 ), + 644 sep=" ", + 645 prefix=" ", + 646 wrapped=False, + 647 ) 648 - 649 def describe_sql(self, expression: exp.Describe) -> str: - 650 return f"DESCRIBE {self.sql(expression, 'this')}" - 651 - 652 def prepend_ctes(self, expression: exp.Expression, sql: str) -> str: - 653 with_ = self.sql(expression, "with") - 654 if with_: - 655 sql = f"{with_}{self.sep()}{sql}" - 656 return sql - 657 - 658 def with_sql(self, expression: exp.With) -> str: - 659 sql = self.expressions(expression, flat=True) - 660 recursive = "RECURSIVE " if expression.args.get("recursive") else "" - 661 - 662 return f"WITH {recursive}{sql}" - 663 - 664 def cte_sql(self, expression: exp.CTE) -> str: - 665 alias = self.sql(expression, "alias") - 666 return f"{alias} AS {self.wrap(expression)}" - 667 - 668 def tablealias_sql(self, expression: exp.TableAlias) -> str: - 669 alias = self.sql(expression, "this") - 670 columns = self.expressions(expression, key="columns", flat=True) - 671 columns = f"({columns})" if columns else "" - 672 return f"{alias}{columns}" - 673 - 674 def bitstring_sql(self, expression: exp.BitString) -> str: - 675 return self.sql(expression, "this") - 676 - 677 def hexstring_sql(self, expression: exp.HexString) -> str: - 678 return self.sql(expression, "this") - 679 - 680 def datatype_sql(self, expression: exp.DataType) -> str: - 681 type_value = expression.this - 682 type_sql = self.TYPE_MAPPING.get(type_value, type_value.value) - 683 nested = "" - 684 interior = self.expressions(expression, flat=True) - 685 values = "" - 686 if interior: - 687 if expression.args.get("nested"): - 688 nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}" - 689 if expression.args.get("values") is not None: - 690 delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")") - 691 values = ( - 692 f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}" - 693 ) - 694 else: - 695 nested = f"({interior})" - 696 - 697 return f"{type_sql}{nested}{values}" - 698 - 699 def directory_sql(self, expression: exp.Directory) -> str: - 700 local = "LOCAL " if expression.args.get("local") else "" - 701 row_format = self.sql(expression, "row_format") - 702 row_format = f" {row_format}" if row_format else "" - 703 return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}" + 649 exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else "" + 650 no_schema_binding = ( + 651 " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else "" + 652 ) + 653 + 654 expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}" + 655 return self.prepend_ctes(expression, expression_sql) + 656 + 657 def describe_sql(self, expression: exp.Describe) -> str: + 658 return f"DESCRIBE {self.sql(expression, 'this')}" + 659 + 660 def prepend_ctes(self, expression: exp.Expression, sql: str) -> str: + 661 with_ = self.sql(expression, "with") + 662 if with_: + 663 sql = f"{with_}{self.sep()}{sql}" + 664 return sql + 665 + 666 def with_sql(self, expression: exp.With) -> str: + 667 sql = self.expressions(expression, flat=True) + 668 recursive = "RECURSIVE " if expression.args.get("recursive") else "" + 669 + 670 return f"WITH {recursive}{sql}" + 671 + 672 def cte_sql(self, expression: exp.CTE) -> str: + 673 alias = self.sql(expression, "alias") + 674 return f"{alias} AS {self.wrap(expression)}" + 675 + 676 def tablealias_sql(self, expression: exp.TableAlias) -> str: + 677 alias = self.sql(expression, "this") + 678 columns = self.expressions(expression, key="columns", flat=True) + 679 columns = f"({columns})" if columns else "" + 680 return f"{alias}{columns}" + 681 + 682 def bitstring_sql(self, expression: exp.BitString) -> str: + 683 return self.sql(expression, "this") + 684 + 685 def hexstring_sql(self, expression: exp.HexString) -> str: + 686 return self.sql(expression, "this") + 687 + 688 def datatype_sql(self, expression: exp.DataType) -> str: + 689 type_value = expression.this + 690 type_sql = self.TYPE_MAPPING.get(type_value, type_value.value) + 691 nested = "" + 692 interior = self.expressions(expression, flat=True) + 693 values = "" + 694 if interior: + 695 if expression.args.get("nested"): + 696 nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}" + 697 if expression.args.get("values") is not None: + 698 delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")") + 699 values = ( + 700 f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}" + 701 ) + 702 else: + 703 nested = f"({interior})" 704 - 705 def delete_sql(self, expression: exp.Delete) -> str: - 706 this = self.sql(expression, "this") - 707 this = f" FROM {this}" if this else "" - 708 using_sql = ( - 709 f" USING {self.expressions(expression, 'using', sep=', USING ')}" - 710 if expression.args.get("using") - 711 else "" - 712 ) - 713 where_sql = self.sql(expression, "where") - 714 returning = self.sql(expression, "returning") - 715 sql = f"DELETE{this}{using_sql}{where_sql}{returning}" - 716 return self.prepend_ctes(expression, sql) - 717 - 718 def drop_sql(self, expression: exp.Drop) -> str: - 719 this = self.sql(expression, "this") - 720 kind = expression.args["kind"] - 721 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " - 722 temporary = " TEMPORARY" if expression.args.get("temporary") else "" - 723 materialized = " MATERIALIZED" if expression.args.get("materialized") else "" - 724 cascade = " CASCADE" if expression.args.get("cascade") else "" - 725 return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}" - 726 - 727 def except_sql(self, expression: exp.Except) -> str: - 728 return self.prepend_ctes( - 729 expression, - 730 self.set_operation(expression, self.except_op(expression)), - 731 ) - 732 - 733 def except_op(self, expression: exp.Except) -> str: - 734 return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}" + 705 return f"{type_sql}{nested}{values}" + 706 + 707 def directory_sql(self, expression: exp.Directory) -> str: + 708 local = "LOCAL " if expression.args.get("local") else "" + 709 row_format = self.sql(expression, "row_format") + 710 row_format = f" {row_format}" if row_format else "" + 711 return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}" + 712 + 713 def delete_sql(self, expression: exp.Delete) -> str: + 714 this = self.sql(expression, "this") + 715 this = f" FROM {this}" if this else "" + 716 using_sql = ( + 717 f" USING {self.expressions(expression, 'using', sep=', USING ')}" + 718 if expression.args.get("using") + 719 else "" + 720 ) + 721 where_sql = self.sql(expression, "where") + 722 returning = self.sql(expression, "returning") + 723 sql = f"DELETE{this}{using_sql}{where_sql}{returning}" + 724 return self.prepend_ctes(expression, sql) + 725 + 726 def drop_sql(self, expression: exp.Drop) -> str: + 727 this = self.sql(expression, "this") + 728 kind = expression.args["kind"] + 729 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " + 730 temporary = " TEMPORARY" if expression.args.get("temporary") else "" + 731 materialized = " MATERIALIZED" if expression.args.get("materialized") else "" + 732 cascade = " CASCADE" if expression.args.get("cascade") else "" + 733 constraints = " CONSTRAINTS" if expression.args.get("constraints") else "" + 734 return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}{constraints}" 735 - 736 def fetch_sql(self, expression: exp.Fetch) -> str: - 737 direction = expression.args.get("direction") - 738 direction = f" {direction.upper()}" if direction else "" - 739 count = expression.args.get("count") - 740 count = f" {count}" if count else "" - 741 return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY" - 742 - 743 def filter_sql(self, expression: exp.Filter) -> str: - 744 this = self.sql(expression, "this") - 745 where = self.sql(expression, "expression")[1:] # where has a leading space - 746 return f"{this} FILTER({where})" - 747 - 748 def hint_sql(self, expression: exp.Hint) -> str: - 749 if self.sql(expression, "this"): - 750 self.unsupported("Hints are not supported") - 751 return "" - 752 - 753 def index_sql(self, expression: exp.Index) -> str: - 754 this = self.sql(expression, "this") - 755 table = self.sql(expression, "table") - 756 columns = self.sql(expression, "columns") - 757 return f"{this} ON {table} {columns}" - 758 - 759 def identifier_sql(self, expression: exp.Identifier) -> str: - 760 text = expression.name - 761 text = text.lower() if self.normalize and not expression.quoted else text - 762 text = text.replace(self.identifier_end, self._escaped_identifier_end) - 763 if expression.quoted or should_identify(text, self.identify): - 764 text = f"{self.identifier_start}{text}{self.identifier_end}" - 765 return text - 766 - 767 def national_sql(self, expression: exp.National) -> str: - 768 return f"N{self.sql(expression, 'this')}" - 769 - 770 def partition_sql(self, expression: exp.Partition) -> str: - 771 return f"PARTITION({self.expressions(expression)})" - 772 - 773 def properties_sql(self, expression: exp.Properties) -> str: - 774 root_properties = [] - 775 with_properties = [] - 776 - 777 for p in expression.expressions: - 778 p_loc = self.PROPERTIES_LOCATION[p.__class__] - 779 if p_loc == exp.Properties.Location.POST_WITH: - 780 with_properties.append(p) - 781 elif p_loc == exp.Properties.Location.POST_SCHEMA: - 782 root_properties.append(p) - 783 - 784 return self.root_properties( - 785 exp.Properties(expressions=root_properties) - 786 ) + self.with_properties(exp.Properties(expressions=with_properties)) - 787 - 788 def root_properties(self, properties: exp.Properties) -> str: - 789 if properties.expressions: - 790 return self.sep() + self.expressions(properties, indent=False, sep=" ") - 791 return "" + 736 def except_sql(self, expression: exp.Except) -> str: + 737 return self.prepend_ctes( + 738 expression, + 739 self.set_operation(expression, self.except_op(expression)), + 740 ) + 741 + 742 def except_op(self, expression: exp.Except) -> str: + 743 return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}" + 744 + 745 def fetch_sql(self, expression: exp.Fetch) -> str: + 746 direction = expression.args.get("direction") + 747 direction = f" {direction.upper()}" if direction else "" + 748 count = expression.args.get("count") + 749 count = f" {count}" if count else "" + 750 return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY" + 751 + 752 def filter_sql(self, expression: exp.Filter) -> str: + 753 this = self.sql(expression, "this") + 754 where = self.sql(expression, "expression")[1:] # where has a leading space + 755 return f"{this} FILTER({where})" + 756 + 757 def hint_sql(self, expression: exp.Hint) -> str: + 758 if self.sql(expression, "this"): + 759 self.unsupported("Hints are not supported") + 760 return "" + 761 + 762 def index_sql(self, expression: exp.Index) -> str: + 763 this = self.sql(expression, "this") + 764 table = self.sql(expression, "table") + 765 columns = self.sql(expression, "columns") + 766 return f"{this} ON {table} {columns}" + 767 + 768 def identifier_sql(self, expression: exp.Identifier) -> str: + 769 text = expression.name + 770 text = text.lower() if self.normalize and not expression.quoted else text + 771 text = text.replace(self.identifier_end, self._escaped_identifier_end) + 772 if expression.quoted or should_identify(text, self.identify): + 773 text = f"{self.identifier_start}{text}{self.identifier_end}" + 774 return text + 775 + 776 def national_sql(self, expression: exp.National) -> str: + 777 return f"N{self.sql(expression, 'this')}" + 778 + 779 def partition_sql(self, expression: exp.Partition) -> str: + 780 return f"PARTITION({self.expressions(expression)})" + 781 + 782 def properties_sql(self, expression: exp.Properties) -> str: + 783 root_properties = [] + 784 with_properties = [] + 785 + 786 for p in expression.expressions: + 787 p_loc = self.PROPERTIES_LOCATION[p.__class__] + 788 if p_loc == exp.Properties.Location.POST_WITH: + 789 with_properties.append(p) + 790 elif p_loc == exp.Properties.Location.POST_SCHEMA: + 791 root_properties.append(p) 792 - 793 def properties( - 794 self, - 795 properties: exp.Properties, - 796 prefix: str = "", - 797 sep: str = ", ", - 798 suffix: str = "", - 799 wrapped: bool = True, - 800 ) -> str: - 801 if properties.expressions: - 802 expressions = self.expressions(properties, sep=sep, indent=False) - 803 expressions = self.wrap(expressions) if wrapped else expressions - 804 return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}" - 805 return "" - 806 - 807 def with_properties(self, properties: exp.Properties) -> str: - 808 return self.properties(properties, prefix=self.seg("WITH")) - 809 - 810 def locate_properties( - 811 self, properties: exp.Properties - 812 ) -> t.Dict[exp.Properties.Location, list[exp.Property]]: - 813 properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = { - 814 key: [] for key in exp.Properties.Location - 815 } - 816 - 817 for p in properties.expressions: - 818 p_loc = self.PROPERTIES_LOCATION[p.__class__] - 819 if p_loc == exp.Properties.Location.POST_NAME: - 820 properties_locs[exp.Properties.Location.POST_NAME].append(p) - 821 elif p_loc == exp.Properties.Location.POST_INDEX: - 822 properties_locs[exp.Properties.Location.POST_INDEX].append(p) - 823 elif p_loc == exp.Properties.Location.POST_SCHEMA: - 824 properties_locs[exp.Properties.Location.POST_SCHEMA].append(p) - 825 elif p_loc == exp.Properties.Location.POST_WITH: - 826 properties_locs[exp.Properties.Location.POST_WITH].append(p) - 827 elif p_loc == exp.Properties.Location.POST_CREATE: - 828 properties_locs[exp.Properties.Location.POST_CREATE].append(p) - 829 elif p_loc == exp.Properties.Location.POST_ALIAS: - 830 properties_locs[exp.Properties.Location.POST_ALIAS].append(p) - 831 elif p_loc == exp.Properties.Location.POST_EXPRESSION: - 832 properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p) - 833 elif p_loc == exp.Properties.Location.UNSUPPORTED: - 834 self.unsupported(f"Unsupported property {p.key}") - 835 - 836 return properties_locs - 837 - 838 def property_sql(self, expression: exp.Property) -> str: - 839 property_cls = expression.__class__ - 840 if property_cls == exp.Property: - 841 return f"{expression.name}={self.sql(expression, 'value')}" - 842 - 843 property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls) - 844 if not property_name: - 845 self.unsupported(f"Unsupported property {expression.key}") + 793 return self.root_properties( + 794 exp.Properties(expressions=root_properties) + 795 ) + self.with_properties(exp.Properties(expressions=with_properties)) + 796 + 797 def root_properties(self, properties: exp.Properties) -> str: + 798 if properties.expressions: + 799 return self.sep() + self.expressions(properties, indent=False, sep=" ") + 800 return "" + 801 + 802 def properties( + 803 self, + 804 properties: exp.Properties, + 805 prefix: str = "", + 806 sep: str = ", ", + 807 suffix: str = "", + 808 wrapped: bool = True, + 809 ) -> str: + 810 if properties.expressions: + 811 expressions = self.expressions(properties, sep=sep, indent=False) + 812 expressions = self.wrap(expressions) if wrapped else expressions + 813 return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}" + 814 return "" + 815 + 816 def with_properties(self, properties: exp.Properties) -> str: + 817 return self.properties(properties, prefix=self.seg("WITH")) + 818 + 819 def locate_properties( + 820 self, properties: exp.Properties + 821 ) -> t.Dict[exp.Properties.Location, list[exp.Property]]: + 822 properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = { + 823 key: [] for key in exp.Properties.Location + 824 } + 825 + 826 for p in properties.expressions: + 827 p_loc = self.PROPERTIES_LOCATION[p.__class__] + 828 if p_loc == exp.Properties.Location.POST_NAME: + 829 properties_locs[exp.Properties.Location.POST_NAME].append(p) + 830 elif p_loc == exp.Properties.Location.POST_INDEX: + 831 properties_locs[exp.Properties.Location.POST_INDEX].append(p) + 832 elif p_loc == exp.Properties.Location.POST_SCHEMA: + 833 properties_locs[exp.Properties.Location.POST_SCHEMA].append(p) + 834 elif p_loc == exp.Properties.Location.POST_WITH: + 835 properties_locs[exp.Properties.Location.POST_WITH].append(p) + 836 elif p_loc == exp.Properties.Location.POST_CREATE: + 837 properties_locs[exp.Properties.Location.POST_CREATE].append(p) + 838 elif p_loc == exp.Properties.Location.POST_ALIAS: + 839 properties_locs[exp.Properties.Location.POST_ALIAS].append(p) + 840 elif p_loc == exp.Properties.Location.POST_EXPRESSION: + 841 properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p) + 842 elif p_loc == exp.Properties.Location.UNSUPPORTED: + 843 self.unsupported(f"Unsupported property {p.key}") + 844 + 845 return properties_locs 846 - 847 return f"{property_name}={self.sql(expression, 'this')}" - 848 - 849 def likeproperty_sql(self, expression: exp.LikeProperty) -> str: - 850 options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions) - 851 options = f" {options}" if options else "" - 852 return f"LIKE {self.sql(expression, 'this')}{options}" - 853 - 854 def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str: - 855 no = "NO " if expression.args.get("no") else "" - 856 protection = " PROTECTION" if expression.args.get("protection") else "" - 857 return f"{no}FALLBACK{protection}" - 858 - 859 def journalproperty_sql(self, expression: exp.JournalProperty) -> str: - 860 no = "NO " if expression.args.get("no") else "" - 861 dual = "DUAL " if expression.args.get("dual") else "" - 862 before = "BEFORE " if expression.args.get("before") else "" - 863 return f"{no}{dual}{before}JOURNAL" - 864 - 865 def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str: - 866 freespace = self.sql(expression, "this") - 867 percent = " PERCENT" if expression.args.get("percent") else "" - 868 return f"FREESPACE={freespace}{percent}" - 869 - 870 def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str: - 871 no = "NO " if expression.args.get("no") else "" - 872 dual = "DUAL " if expression.args.get("dual") else "" - 873 local = "" - 874 if expression.args.get("local") is not None: - 875 local = "LOCAL " if expression.args.get("local") else "NOT LOCAL " - 876 return f"{no}{dual}{local}AFTER JOURNAL" - 877 - 878 def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str: - 879 if expression.args.get("default"): - 880 property = "DEFAULT" - 881 elif expression.args.get("on"): - 882 property = "ON" - 883 else: - 884 property = "OFF" - 885 return f"CHECKSUM={property}" + 847 def property_sql(self, expression: exp.Property) -> str: + 848 property_cls = expression.__class__ + 849 if property_cls == exp.Property: + 850 return f"{expression.name}={self.sql(expression, 'value')}" + 851 + 852 property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls) + 853 if not property_name: + 854 self.unsupported(f"Unsupported property {expression.key}") + 855 + 856 return f"{property_name}={self.sql(expression, 'this')}" + 857 + 858 def likeproperty_sql(self, expression: exp.LikeProperty) -> str: + 859 options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions) + 860 options = f" {options}" if options else "" + 861 return f"LIKE {self.sql(expression, 'this')}{options}" + 862 + 863 def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str: + 864 no = "NO " if expression.args.get("no") else "" + 865 protection = " PROTECTION" if expression.args.get("protection") else "" + 866 return f"{no}FALLBACK{protection}" + 867 + 868 def journalproperty_sql(self, expression: exp.JournalProperty) -> str: + 869 no = "NO " if expression.args.get("no") else "" + 870 dual = "DUAL " if expression.args.get("dual") else "" + 871 before = "BEFORE " if expression.args.get("before") else "" + 872 return f"{no}{dual}{before}JOURNAL" + 873 + 874 def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str: + 875 freespace = self.sql(expression, "this") + 876 percent = " PERCENT" if expression.args.get("percent") else "" + 877 return f"FREESPACE={freespace}{percent}" + 878 + 879 def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str: + 880 no = "NO " if expression.args.get("no") else "" + 881 dual = "DUAL " if expression.args.get("dual") else "" + 882 local = "" + 883 if expression.args.get("local") is not None: + 884 local = "LOCAL " if expression.args.get("local") else "NOT LOCAL " + 885 return f"{no}{dual}{local}AFTER JOURNAL" 886 - 887 def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str: - 888 if expression.args.get("no"): - 889 return "NO MERGEBLOCKRATIO" - 890 if expression.args.get("default"): - 891 return "DEFAULT MERGEBLOCKRATIO" - 892 - 893 percent = " PERCENT" if expression.args.get("percent") else "" - 894 return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}" + 887 def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str: + 888 if expression.args.get("default"): + 889 property = "DEFAULT" + 890 elif expression.args.get("on"): + 891 property = "ON" + 892 else: + 893 property = "OFF" + 894 return f"CHECKSUM={property}" 895 - 896 def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str: - 897 default = expression.args.get("default") - 898 min = expression.args.get("min") - 899 if default is not None or min is not None: - 900 if default: - 901 property = "DEFAULT" - 902 elif min: - 903 property = "MINIMUM" - 904 else: - 905 property = "MAXIMUM" - 906 return f"{property} DATABLOCKSIZE" - 907 else: - 908 units = expression.args.get("units") - 909 units = f" {units}" if units else "" - 910 return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}" - 911 - 912 def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str: - 913 autotemp = expression.args.get("autotemp") - 914 always = expression.args.get("always") - 915 default = expression.args.get("default") - 916 manual = expression.args.get("manual") - 917 never = expression.args.get("never") - 918 - 919 if autotemp is not None: - 920 property = f"AUTOTEMP({self.expressions(autotemp)})" - 921 elif always: - 922 property = "ALWAYS" - 923 elif default: - 924 property = "DEFAULT" - 925 elif manual: - 926 property = "MANUAL" - 927 elif never: - 928 property = "NEVER" - 929 return f"BLOCKCOMPRESSION={property}" - 930 - 931 def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str: - 932 no = expression.args.get("no") - 933 no = " NO" if no else "" - 934 concurrent = expression.args.get("concurrent") - 935 concurrent = " CONCURRENT" if concurrent else "" - 936 - 937 for_ = "" - 938 if expression.args.get("for_all"): - 939 for_ = " FOR ALL" - 940 elif expression.args.get("for_insert"): - 941 for_ = " FOR INSERT" - 942 elif expression.args.get("for_none"): - 943 for_ = " FOR NONE" - 944 return f"WITH{no}{concurrent} ISOLATED LOADING{for_}" + 896 def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str: + 897 if expression.args.get("no"): + 898 return "NO MERGEBLOCKRATIO" + 899 if expression.args.get("default"): + 900 return "DEFAULT MERGEBLOCKRATIO" + 901 + 902 percent = " PERCENT" if expression.args.get("percent") else "" + 903 return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}" + 904 + 905 def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str: + 906 default = expression.args.get("default") + 907 min = expression.args.get("min") + 908 if default is not None or min is not None: + 909 if default: + 910 property = "DEFAULT" + 911 elif min: + 912 property = "MINIMUM" + 913 else: + 914 property = "MAXIMUM" + 915 return f"{property} DATABLOCKSIZE" + 916 else: + 917 units = expression.args.get("units") + 918 units = f" {units}" if units else "" + 919 return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}" + 920 + 921 def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str: + 922 autotemp = expression.args.get("autotemp") + 923 always = expression.args.get("always") + 924 default = expression.args.get("default") + 925 manual = expression.args.get("manual") + 926 never = expression.args.get("never") + 927 + 928 if autotemp is not None: + 929 property = f"AUTOTEMP({self.expressions(autotemp)})" + 930 elif always: + 931 property = "ALWAYS" + 932 elif default: + 933 property = "DEFAULT" + 934 elif manual: + 935 property = "MANUAL" + 936 elif never: + 937 property = "NEVER" + 938 return f"BLOCKCOMPRESSION={property}" + 939 + 940 def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str: + 941 no = expression.args.get("no") + 942 no = " NO" if no else "" + 943 concurrent = expression.args.get("concurrent") + 944 concurrent = " CONCURRENT" if concurrent else "" 945 - 946 def lockingproperty_sql(self, expression: exp.LockingProperty) -> str: - 947 kind = expression.args.get("kind") - 948 this: str = f" {this}" if expression.this else "" - 949 for_or_in = expression.args.get("for_or_in") - 950 lock_type = expression.args.get("lock_type") - 951 override = " OVERRIDE" if expression.args.get("override") else "" - 952 return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}" - 953 - 954 def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str: - 955 data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA" - 956 statistics = expression.args.get("statistics") - 957 statistics_sql = "" - 958 if statistics is not None: - 959 statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS" - 960 return f"{data_sql}{statistics_sql}" - 961 - 962 def insert_sql(self, expression: exp.Insert) -> str: - 963 overwrite = expression.args.get("overwrite") - 964 - 965 if isinstance(expression.this, exp.Directory): - 966 this = "OVERWRITE " if overwrite else "INTO " - 967 else: - 968 this = "OVERWRITE TABLE " if overwrite else "INTO " - 969 - 970 alternative = expression.args.get("alternative") - 971 alternative = f" OR {alternative} " if alternative else " " - 972 this = f"{this}{self.sql(expression, 'this')}" + 946 for_ = "" + 947 if expression.args.get("for_all"): + 948 for_ = " FOR ALL" + 949 elif expression.args.get("for_insert"): + 950 for_ = " FOR INSERT" + 951 elif expression.args.get("for_none"): + 952 for_ = " FOR NONE" + 953 return f"WITH{no}{concurrent} ISOLATED LOADING{for_}" + 954 + 955 def lockingproperty_sql(self, expression: exp.LockingProperty) -> str: + 956 kind = expression.args.get("kind") + 957 this: str = f" {this}" if expression.this else "" + 958 for_or_in = expression.args.get("for_or_in") + 959 lock_type = expression.args.get("lock_type") + 960 override = " OVERRIDE" if expression.args.get("override") else "" + 961 return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}" + 962 + 963 def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str: + 964 data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA" + 965 statistics = expression.args.get("statistics") + 966 statistics_sql = "" + 967 if statistics is not None: + 968 statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS" + 969 return f"{data_sql}{statistics_sql}" + 970 + 971 def insert_sql(self, expression: exp.Insert) -> str: + 972 overwrite = expression.args.get("overwrite") 973 - 974 exists = " IF EXISTS " if expression.args.get("exists") else " " - 975 partition_sql = ( - 976 self.sql(expression, "partition") if expression.args.get("partition") else "" - 977 ) - 978 expression_sql = self.sql(expression, "expression") - 979 returning = self.sql(expression, "returning") - 980 sep = self.sep() if partition_sql else "" - 981 sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}" - 982 return self.prepend_ctes(expression, sql) - 983 - 984 def intersect_sql(self, expression: exp.Intersect) -> str: - 985 return self.prepend_ctes( - 986 expression, - 987 self.set_operation(expression, self.intersect_op(expression)), - 988 ) - 989 - 990 def intersect_op(self, expression: exp.Intersect) -> str: - 991 return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}" + 974 if isinstance(expression.this, exp.Directory): + 975 this = "OVERWRITE " if overwrite else "INTO " + 976 else: + 977 this = "OVERWRITE TABLE " if overwrite else "INTO " + 978 + 979 alternative = expression.args.get("alternative") + 980 alternative = f" OR {alternative} " if alternative else " " + 981 this = f"{this}{self.sql(expression, 'this')}" + 982 + 983 exists = " IF EXISTS " if expression.args.get("exists") else " " + 984 partition_sql = ( + 985 self.sql(expression, "partition") if expression.args.get("partition") else "" + 986 ) + 987 expression_sql = self.sql(expression, "expression") + 988 returning = self.sql(expression, "returning") + 989 sep = self.sep() if partition_sql else "" + 990 sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}" + 991 return self.prepend_ctes(expression, sql) 992 - 993 def introducer_sql(self, expression: exp.Introducer) -> str: - 994 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" - 995 - 996 def pseudotype_sql(self, expression: exp.PseudoType) -> str: - 997 return expression.name.upper() + 993 def intersect_sql(self, expression: exp.Intersect) -> str: + 994 return self.prepend_ctes( + 995 expression, + 996 self.set_operation(expression, self.intersect_op(expression)), + 997 ) 998 - 999 def returning_sql(self, expression: exp.Returning) -> str: -1000 return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}" + 999 def intersect_op(self, expression: exp.Intersect) -> str: +1000 return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}" 1001 -1002 def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str: -1003 fields = expression.args.get("fields") -1004 fields = f" FIELDS TERMINATED BY {fields}" if fields else "" -1005 escaped = expression.args.get("escaped") -1006 escaped = f" ESCAPED BY {escaped}" if escaped else "" -1007 items = expression.args.get("collection_items") -1008 items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else "" -1009 keys = expression.args.get("map_keys") -1010 keys = f" MAP KEYS TERMINATED BY {keys}" if keys else "" -1011 lines = expression.args.get("lines") -1012 lines = f" LINES TERMINATED BY {lines}" if lines else "" -1013 null = expression.args.get("null") -1014 null = f" NULL DEFINED AS {null}" if null else "" -1015 return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}" -1016 -1017 def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str: -1018 table = ".".join( -1019 part -1020 for part in [ -1021 self.sql(expression, "catalog"), -1022 self.sql(expression, "db"), -1023 self.sql(expression, "this"), -1024 ] -1025 if part -1026 ) -1027 -1028 alias = self.sql(expression, "alias") -1029 alias = f"{sep}{alias}" if alias else "" -1030 hints = self.expressions(expression, key="hints", sep=", ", flat=True) -1031 hints = f" WITH ({hints})" if hints else "" -1032 laterals = self.expressions(expression, key="laterals", sep="") -1033 joins = self.expressions(expression, key="joins", sep="") -1034 pivots = self.expressions(expression, key="pivots", sep="") -1035 system_time = expression.args.get("system_time") -1036 system_time = f" {self.sql(expression, 'system_time')}" if system_time else "" -1037 -1038 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" -1039 -1040 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: -1041 if self.alias_post_tablesample and expression.this.alias: -1042 this = self.sql(expression.this, "this") -1043 alias = f" AS {self.sql(expression.this, 'alias')}" -1044 else: -1045 this = self.sql(expression, "this") -1046 alias = "" -1047 method = self.sql(expression, "method") -1048 method = f"{method.upper()} " if method else "" -1049 numerator = self.sql(expression, "bucket_numerator") -1050 denominator = self.sql(expression, "bucket_denominator") -1051 field = self.sql(expression, "bucket_field") -1052 field = f" ON {field}" if field else "" -1053 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" -1054 percent = self.sql(expression, "percent") -1055 percent = f"{percent} PERCENT" if percent else "" -1056 rows = self.sql(expression, "rows") -1057 rows = f"{rows} ROWS" if rows else "" -1058 size = self.sql(expression, "size") -1059 seed = self.sql(expression, "seed") -1060 seed = f" {seed_prefix} ({seed})" if seed else "" -1061 kind = expression.args.get("kind", "TABLESAMPLE") -1062 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" -1063 -1064 def pivot_sql(self, expression: exp.Pivot) -> str: -1065 this = self.sql(expression, "this") -1066 alias = self.sql(expression, "alias") -1067 alias = f" AS {alias}" if alias else "" -1068 unpivot = expression.args.get("unpivot") -1069 direction = "UNPIVOT" if unpivot else "PIVOT" -1070 expressions = self.expressions(expression, key="expressions") -1071 field = self.sql(expression, "field") -1072 return f"{this} {direction}({expressions} FOR {field}){alias}" -1073 -1074 def tuple_sql(self, expression: exp.Tuple) -> str: -1075 return f"({self.expressions(expression, flat=True)})" -1076 -1077 def update_sql(self, expression: exp.Update) -> str: -1078 this = self.sql(expression, "this") -1079 set_sql = self.expressions(expression, flat=True) -1080 from_sql = self.sql(expression, "from") -1081 where_sql = self.sql(expression, "where") -1082 returning = self.sql(expression, "returning") -1083 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" -1084 return self.prepend_ctes(expression, sql) +1002 def introducer_sql(self, expression: exp.Introducer) -> str: +1003 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" +1004 +1005 def pseudotype_sql(self, expression: exp.PseudoType) -> str: +1006 return expression.name.upper() +1007 +1008 def returning_sql(self, expression: exp.Returning) -> str: +1009 return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}" +1010 +1011 def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str: +1012 fields = expression.args.get("fields") +1013 fields = f" FIELDS TERMINATED BY {fields}" if fields else "" +1014 escaped = expression.args.get("escaped") +1015 escaped = f" ESCAPED BY {escaped}" if escaped else "" +1016 items = expression.args.get("collection_items") +1017 items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else "" +1018 keys = expression.args.get("map_keys") +1019 keys = f" MAP KEYS TERMINATED BY {keys}" if keys else "" +1020 lines = expression.args.get("lines") +1021 lines = f" LINES TERMINATED BY {lines}" if lines else "" +1022 null = expression.args.get("null") +1023 null = f" NULL DEFINED AS {null}" if null else "" +1024 return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}" +1025 +1026 def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str: +1027 table = ".".join( +1028 part +1029 for part in [ +1030 self.sql(expression, "catalog"), +1031 self.sql(expression, "db"), +1032 self.sql(expression, "this"), +1033 ] +1034 if part +1035 ) +1036 +1037 alias = self.sql(expression, "alias") +1038 alias = f"{sep}{alias}" if alias else "" +1039 hints = self.expressions(expression, key="hints", sep=", ", flat=True) +1040 hints = f" WITH ({hints})" if hints else "" +1041 laterals = self.expressions(expression, key="laterals", sep="") +1042 joins = self.expressions(expression, key="joins", sep="") +1043 pivots = self.expressions(expression, key="pivots", sep="") +1044 system_time = expression.args.get("system_time") +1045 system_time = f" {self.sql(expression, 'system_time')}" if system_time else "" +1046 +1047 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" +1048 +1049 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: +1050 if self.alias_post_tablesample and expression.this.alias: +1051 this = self.sql(expression.this, "this") +1052 alias = f" AS {self.sql(expression.this, 'alias')}" +1053 else: +1054 this = self.sql(expression, "this") +1055 alias = "" +1056 method = self.sql(expression, "method") +1057 method = f"{method.upper()} " if method else "" +1058 numerator = self.sql(expression, "bucket_numerator") +1059 denominator = self.sql(expression, "bucket_denominator") +1060 field = self.sql(expression, "bucket_field") +1061 field = f" ON {field}" if field else "" +1062 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" +1063 percent = self.sql(expression, "percent") +1064 percent = f"{percent} PERCENT" if percent else "" +1065 rows = self.sql(expression, "rows") +1066 rows = f"{rows} ROWS" if rows else "" +1067 size = self.sql(expression, "size") +1068 seed = self.sql(expression, "seed") +1069 seed = f" {seed_prefix} ({seed})" if seed else "" +1070 kind = expression.args.get("kind", "TABLESAMPLE") +1071 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" +1072 +1073 def pivot_sql(self, expression: exp.Pivot) -> str: +1074 this = self.sql(expression, "this") +1075 alias = self.sql(expression, "alias") +1076 alias = f" AS {alias}" if alias else "" +1077 unpivot = expression.args.get("unpivot") +1078 direction = "UNPIVOT" if unpivot else "PIVOT" +1079 expressions = self.expressions(expression, key="expressions") +1080 field = self.sql(expression, "field") +1081 return f"{this} {direction}({expressions} FOR {field}){alias}" +1082 +1083 def tuple_sql(self, expression: exp.Tuple) -> str: +1084 return f"({self.expressions(expression, flat=True)})" 1085 -1086 def values_sql(self, expression: exp.Values) -> str: -1087 args = self.expressions(expression) -1088 alias = self.sql(expression, "alias") -1089 values = f"VALUES{self.seg('')}{args}" -1090 values = ( -1091 f"({values})" -1092 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) -1093 else values -1094 ) -1095 return f"{values} AS {alias}" if alias else values -1096 -1097 def var_sql(self, expression: exp.Var) -> str: -1098 return self.sql(expression, "this") -1099 -1100 def into_sql(self, expression: exp.Into) -> str: -1101 temporary = " TEMPORARY" if expression.args.get("temporary") else "" -1102 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" -1103 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" -1104 -1105 def from_sql(self, expression: exp.From) -> str: -1106 expressions = self.expressions(expression, flat=True) -1107 return f"{self.seg('FROM')} {expressions}" +1086 def update_sql(self, expression: exp.Update) -> str: +1087 this = self.sql(expression, "this") +1088 set_sql = self.expressions(expression, flat=True) +1089 from_sql = self.sql(expression, "from") +1090 where_sql = self.sql(expression, "where") +1091 returning = self.sql(expression, "returning") +1092 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" +1093 return self.prepend_ctes(expression, sql) +1094 +1095 def values_sql(self, expression: exp.Values) -> str: +1096 args = self.expressions(expression) +1097 alias = self.sql(expression, "alias") +1098 values = f"VALUES{self.seg('')}{args}" +1099 values = ( +1100 f"({values})" +1101 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) +1102 else values +1103 ) +1104 return f"{values} AS {alias}" if alias else values +1105 +1106 def var_sql(self, expression: exp.Var) -> str: +1107 return self.sql(expression, "this") 1108 -1109 def group_sql(self, expression: exp.Group) -> str: -1110 group_by = self.op_expressions("GROUP BY", expression) -1111 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) -1112 grouping_sets = ( -1113 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" -1114 ) -1115 -1116 cube = expression.args.get("cube", []) -1117 if seq_get(cube, 0) is True: -1118 return f"{group_by}{self.seg('WITH CUBE')}" -1119 else: -1120 cube_sql = self.expressions(expression, key="cube", indent=False) -1121 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" -1122 -1123 rollup = expression.args.get("rollup", []) -1124 if seq_get(rollup, 0) is True: -1125 return f"{group_by}{self.seg('WITH ROLLUP')}" -1126 else: -1127 rollup_sql = self.expressions(expression, key="rollup", indent=False) -1128 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" -1129 -1130 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") +1109 def into_sql(self, expression: exp.Into) -> str: +1110 temporary = " TEMPORARY" if expression.args.get("temporary") else "" +1111 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" +1112 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" +1113 +1114 def from_sql(self, expression: exp.From) -> str: +1115 expressions = self.expressions(expression, flat=True) +1116 return f"{self.seg('FROM')} {expressions}" +1117 +1118 def group_sql(self, expression: exp.Group) -> str: +1119 group_by = self.op_expressions("GROUP BY", expression) +1120 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) +1121 grouping_sets = ( +1122 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" +1123 ) +1124 +1125 cube = expression.args.get("cube", []) +1126 if seq_get(cube, 0) is True: +1127 return f"{group_by}{self.seg('WITH CUBE')}" +1128 else: +1129 cube_sql = self.expressions(expression, key="cube", indent=False) +1130 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" 1131 -1132 if expression.args.get("expressions") and groupings: -1133 group_by = f"{group_by}," -1134 -1135 return f"{group_by}{groupings}" -1136 -1137 def having_sql(self, expression: exp.Having) -> str: -1138 this = self.indent(self.sql(expression, "this")) -1139 return f"{self.seg('HAVING')}{self.sep()}{this}" +1132 rollup = expression.args.get("rollup", []) +1133 if seq_get(rollup, 0) is True: +1134 return f"{group_by}{self.seg('WITH ROLLUP')}" +1135 else: +1136 rollup_sql = self.expressions(expression, key="rollup", indent=False) +1137 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" +1138 +1139 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") 1140 -1141 def join_sql(self, expression: exp.Join) -> str: -1142 op_sql = self.seg( -1143 " ".join( -1144 op -1145 for op in ( -1146 "NATURAL" if expression.args.get("natural") else None, -1147 expression.side, -1148 expression.kind, -1149 "JOIN", -1150 ) -1151 if op -1152 ) -1153 ) -1154 on_sql = self.sql(expression, "on") -1155 using = expression.args.get("using") -1156 -1157 if not on_sql and using: -1158 on_sql = csv(*(self.sql(column) for column in using)) -1159 -1160 if on_sql: -1161 on_sql = self.indent(on_sql, skip_first=True) -1162 space = self.seg(" " * self.pad) if self.pretty else " " -1163 if using: -1164 on_sql = f"{space}USING ({on_sql})" -1165 else: -1166 on_sql = f"{space}ON {on_sql}" -1167 -1168 expression_sql = self.sql(expression, "expression") -1169 this_sql = self.sql(expression, "this") -1170 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" -1171 -1172 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: -1173 args = self.expressions(expression, flat=True) -1174 args = f"({args})" if len(args.split(",")) > 1 else args -1175 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" +1141 if expression.args.get("expressions") and groupings: +1142 group_by = f"{group_by}," +1143 +1144 return f"{group_by}{groupings}" +1145 +1146 def having_sql(self, expression: exp.Having) -> str: +1147 this = self.indent(self.sql(expression, "this")) +1148 return f"{self.seg('HAVING')}{self.sep()}{this}" +1149 +1150 def join_sql(self, expression: exp.Join) -> str: +1151 op_sql = self.seg( +1152 " ".join( +1153 op +1154 for op in ( +1155 "NATURAL" if expression.args.get("natural") else None, +1156 expression.side, +1157 expression.kind, +1158 "JOIN", +1159 ) +1160 if op +1161 ) +1162 ) +1163 on_sql = self.sql(expression, "on") +1164 using = expression.args.get("using") +1165 +1166 if not on_sql and using: +1167 on_sql = csv(*(self.sql(column) for column in using)) +1168 +1169 if on_sql: +1170 on_sql = self.indent(on_sql, skip_first=True) +1171 space = self.seg(" " * self.pad) if self.pretty else " " +1172 if using: +1173 on_sql = f"{space}USING ({on_sql})" +1174 else: +1175 on_sql = f"{space}ON {on_sql}" 1176 -1177 def lateral_sql(self, expression: exp.Lateral) -> str: -1178 this = self.sql(expression, "this") -1179 -1180 if isinstance(expression.this, exp.Subquery): -1181 return f"LATERAL {this}" -1182 -1183 if expression.args.get("view"): -1184 alias = expression.args["alias"] -1185 columns = self.expressions(alias, key="columns", flat=True) -1186 table = f" {alias.name}" if alias.name else "" -1187 columns = f" AS {columns}" if columns else "" -1188 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") -1189 return f"{op_sql}{self.sep()}{this}{table}{columns}" -1190 -1191 alias = self.sql(expression, "alias") -1192 alias = f" AS {alias}" if alias else "" -1193 return f"LATERAL {this}{alias}" -1194 -1195 def limit_sql(self, expression: exp.Limit) -> str: -1196 this = self.sql(expression, "this") -1197 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" -1198 -1199 def offset_sql(self, expression: exp.Offset) -> str: -1200 this = self.sql(expression, "this") -1201 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" -1202 -1203 def setitem_sql(self, expression: exp.SetItem) -> str: -1204 kind = self.sql(expression, "kind") -1205 kind = f"{kind} " if kind else "" -1206 this = self.sql(expression, "this") -1207 expressions = self.expressions(expression) -1208 collate = self.sql(expression, "collate") -1209 collate = f" COLLATE {collate}" if collate else "" -1210 global_ = "GLOBAL " if expression.args.get("global") else "" -1211 return f"{global_}{kind}{this}{expressions}{collate}" -1212 -1213 def set_sql(self, expression: exp.Set) -> str: -1214 expressions = ( -1215 f" {self.expressions(expression, flat=True)}" if expression.expressions else "" -1216 ) -1217 return f"SET{expressions}" -1218 -1219 def pragma_sql(self, expression: exp.Pragma) -> str: -1220 return f"PRAGMA {self.sql(expression, 'this')}" +1177 expression_sql = self.sql(expression, "expression") +1178 this_sql = self.sql(expression, "this") +1179 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" +1180 +1181 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: +1182 args = self.expressions(expression, flat=True) +1183 args = f"({args})" if len(args.split(",")) > 1 else args +1184 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" +1185 +1186 def lateral_sql(self, expression: exp.Lateral) -> str: +1187 this = self.sql(expression, "this") +1188 +1189 if isinstance(expression.this, exp.Subquery): +1190 return f"LATERAL {this}" +1191 +1192 if expression.args.get("view"): +1193 alias = expression.args["alias"] +1194 columns = self.expressions(alias, key="columns", flat=True) +1195 table = f" {alias.name}" if alias.name else "" +1196 columns = f" AS {columns}" if columns else "" +1197 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") +1198 return f"{op_sql}{self.sep()}{this}{table}{columns}" +1199 +1200 alias = self.sql(expression, "alias") +1201 alias = f" AS {alias}" if alias else "" +1202 return f"LATERAL {this}{alias}" +1203 +1204 def limit_sql(self, expression: exp.Limit) -> str: +1205 this = self.sql(expression, "this") +1206 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" +1207 +1208 def offset_sql(self, expression: exp.Offset) -> str: +1209 this = self.sql(expression, "this") +1210 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" +1211 +1212 def setitem_sql(self, expression: exp.SetItem) -> str: +1213 kind = self.sql(expression, "kind") +1214 kind = f"{kind} " if kind else "" +1215 this = self.sql(expression, "this") +1216 expressions = self.expressions(expression) +1217 collate = self.sql(expression, "collate") +1218 collate = f" COLLATE {collate}" if collate else "" +1219 global_ = "GLOBAL " if expression.args.get("global") else "" +1220 return f"{global_}{kind}{this}{expressions}{collate}" 1221 -1222 def lock_sql(self, expression: exp.Lock) -> str: -1223 if self.LOCKING_READS_SUPPORTED: -1224 lock_type = "UPDATE" if expression.args["update"] else "SHARE" -1225 return self.seg(f"FOR {lock_type}") -1226 -1227 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") -1228 return "" -1229 -1230 def literal_sql(self, expression: exp.Literal) -> str: -1231 text = expression.this or "" -1232 if expression.is_string: -1233 text = text.replace(self.quote_end, self._escaped_quote_end) -1234 if self.pretty: -1235 text = text.replace("\n", self.SENTINEL_LINE_BREAK) -1236 text = f"{self.quote_start}{text}{self.quote_end}" -1237 return text +1222 def set_sql(self, expression: exp.Set) -> str: +1223 expressions = ( +1224 f" {self.expressions(expression, flat=True)}" if expression.expressions else "" +1225 ) +1226 return f"SET{expressions}" +1227 +1228 def pragma_sql(self, expression: exp.Pragma) -> str: +1229 return f"PRAGMA {self.sql(expression, 'this')}" +1230 +1231 def lock_sql(self, expression: exp.Lock) -> str: +1232 if self.LOCKING_READS_SUPPORTED: +1233 lock_type = "UPDATE" if expression.args["update"] else "SHARE" +1234 return self.seg(f"FOR {lock_type}") +1235 +1236 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") +1237 return "" 1238 -1239 def loaddata_sql(self, expression: exp.LoadData) -> str: -1240 local = " LOCAL" if expression.args.get("local") else "" -1241 inpath = f" INPATH {self.sql(expression, 'inpath')}" -1242 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" -1243 this = f" INTO TABLE {self.sql(expression, 'this')}" -1244 partition = self.sql(expression, "partition") -1245 partition = f" {partition}" if partition else "" -1246 input_format = self.sql(expression, "input_format") -1247 input_format = f" INPUTFORMAT {input_format}" if input_format else "" -1248 serde = self.sql(expression, "serde") -1249 serde = f" SERDE {serde}" if serde else "" -1250 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" -1251 -1252 def null_sql(self, *_) -> str: -1253 return "NULL" -1254 -1255 def boolean_sql(self, expression: exp.Boolean) -> str: -1256 return "TRUE" if expression.this else "FALSE" -1257 -1258 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: -1259 this = self.sql(expression, "this") -1260 this = f"{this} " if this else this -1261 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore -1262 -1263 def cluster_sql(self, expression: exp.Cluster) -> str: -1264 return self.op_expressions("CLUSTER BY", expression) -1265 -1266 def distribute_sql(self, expression: exp.Distribute) -> str: -1267 return self.op_expressions("DISTRIBUTE BY", expression) -1268 -1269 def sort_sql(self, expression: exp.Sort) -> str: -1270 return self.op_expressions("SORT BY", expression) +1239 def literal_sql(self, expression: exp.Literal) -> str: +1240 text = expression.this or "" +1241 if expression.is_string: +1242 text = text.replace(self.quote_end, self._escaped_quote_end) +1243 if self.pretty: +1244 text = text.replace("\n", self.SENTINEL_LINE_BREAK) +1245 text = f"{self.quote_start}{text}{self.quote_end}" +1246 return text +1247 +1248 def loaddata_sql(self, expression: exp.LoadData) -> str: +1249 local = " LOCAL" if expression.args.get("local") else "" +1250 inpath = f" INPATH {self.sql(expression, 'inpath')}" +1251 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" +1252 this = f" INTO TABLE {self.sql(expression, 'this')}" +1253 partition = self.sql(expression, "partition") +1254 partition = f" {partition}" if partition else "" +1255 input_format = self.sql(expression, "input_format") +1256 input_format = f" INPUTFORMAT {input_format}" if input_format else "" +1257 serde = self.sql(expression, "serde") +1258 serde = f" SERDE {serde}" if serde else "" +1259 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" +1260 +1261 def null_sql(self, *_) -> str: +1262 return "NULL" +1263 +1264 def boolean_sql(self, expression: exp.Boolean) -> str: +1265 return "TRUE" if expression.this else "FALSE" +1266 +1267 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: +1268 this = self.sql(expression, "this") +1269 this = f"{this} " if this else this +1270 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore 1271 -1272 def ordered_sql(self, expression: exp.Ordered) -> str: -1273 desc = expression.args.get("desc") -1274 asc = not desc -1275 -1276 nulls_first = expression.args.get("nulls_first") -1277 nulls_last = not nulls_first -1278 nulls_are_large = self.null_ordering == "nulls_are_large" -1279 nulls_are_small = self.null_ordering == "nulls_are_small" -1280 nulls_are_last = self.null_ordering == "nulls_are_last" -1281 -1282 sort_order = " DESC" if desc else "" -1283 nulls_sort_change = "" -1284 if nulls_first and ( -1285 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last -1286 ): -1287 nulls_sort_change = " NULLS FIRST" -1288 elif ( -1289 nulls_last -1290 and ((asc and nulls_are_small) or (desc and nulls_are_large)) -1291 and not nulls_are_last -1292 ): -1293 nulls_sort_change = " NULLS LAST" -1294 -1295 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: -1296 self.unsupported( -1297 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" -1298 ) -1299 nulls_sort_change = "" -1300 -1301 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" -1302 -1303 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: -1304 partition = self.partition_by_sql(expression) -1305 order = self.sql(expression, "order") -1306 measures = self.sql(expression, "measures") -1307 measures = self.seg(f"MEASURES {measures}") if measures else "" -1308 rows = self.sql(expression, "rows") -1309 rows = self.seg(rows) if rows else "" -1310 after = self.sql(expression, "after") -1311 after = self.seg(after) if after else "" -1312 pattern = self.sql(expression, "pattern") -1313 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" -1314 define = self.sql(expression, "define") -1315 define = self.seg(f"DEFINE {define}") if define else "" -1316 body = "".join( -1317 ( -1318 partition, -1319 order, -1320 measures, -1321 rows, -1322 after, -1323 pattern, -1324 define, -1325 ) -1326 ) -1327 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}" -1328 -1329 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: -1330 limit = expression.args.get("limit") -1331 -1332 if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch): -1333 limit = exp.Limit(expression=limit.args.get("count")) -1334 elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit): -1335 limit = exp.Fetch(direction="FIRST", count=limit.expression) -1336 -1337 fetch = isinstance(limit, exp.Fetch) -1338 -1339 return csv( -1340 *sqls, -1341 *[self.sql(sql) for sql in expression.args.get("joins") or []], -1342 self.sql(expression, "match"), -1343 *[self.sql(sql) for sql in expression.args.get("laterals") or []], -1344 self.sql(expression, "where"), -1345 self.sql(expression, "group"), -1346 self.sql(expression, "having"), -1347 self.sql(expression, "qualify"), -1348 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) -1349 if expression.args.get("windows") -1350 else "", -1351 self.sql(expression, "distribute"), -1352 self.sql(expression, "sort"), -1353 self.sql(expression, "cluster"), -1354 self.sql(expression, "order"), -1355 self.sql(expression, "offset") if fetch else self.sql(limit), -1356 self.sql(limit) if fetch else self.sql(expression, "offset"), -1357 self.sql(expression, "lock"), -1358 self.sql(expression, "sample"), -1359 sep="", -1360 ) -1361 -1362 def select_sql(self, expression: exp.Select) -> str: -1363 kind = expression.args.get("kind") -1364 kind = f" AS {kind}" if kind else "" -1365 hint = self.sql(expression, "hint") -1366 distinct = self.sql(expression, "distinct") -1367 distinct = f" {distinct}" if distinct else "" -1368 expressions = self.expressions(expression) -1369 expressions = f"{self.sep()}{expressions}" if expressions else expressions -1370 sql = self.query_modifiers( -1371 expression, -1372 f"SELECT{kind}{hint}{distinct}{expressions}", -1373 self.sql(expression, "into", comment=False), -1374 self.sql(expression, "from", comment=False), -1375 ) -1376 return self.prepend_ctes(expression, sql) -1377 -1378 def schema_sql(self, expression: exp.Schema) -> str: -1379 this = self.sql(expression, "this") -1380 this = f"{this} " if this else "" -1381 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" -1382 return f"{this}{sql}" -1383 -1384 def star_sql(self, expression: exp.Star) -> str: -1385 except_ = self.expressions(expression, key="except", flat=True) -1386 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" -1387 replace = self.expressions(expression, key="replace", flat=True) -1388 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" -1389 return f"*{except_}{replace}" -1390 -1391 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: -1392 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" -1393 -1394 def parameter_sql(self, expression: exp.Parameter) -> str: -1395 this = self.sql(expression, "this") -1396 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" -1397 return f"{self.PARAMETER_TOKEN}{this}" -1398 -1399 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: -1400 this = self.sql(expression, "this") -1401 kind = expression.text("kind") -1402 if kind: -1403 kind = f"{kind}." -1404 return f"@@{kind}{this}" -1405 -1406 def placeholder_sql(self, expression: exp.Placeholder) -> str: -1407 return f":{expression.name}" if expression.name else "?" -1408 -1409 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: -1410 alias = self.sql(expression, "alias") -1411 alias = f"{sep}{alias}" if alias else "" -1412 -1413 sql = self.query_modifiers( -1414 expression, -1415 self.wrap(expression), -1416 alias, -1417 self.expressions(expression, key="pivots", sep=" "), -1418 ) -1419 -1420 return self.prepend_ctes(expression, sql) +1272 def cluster_sql(self, expression: exp.Cluster) -> str: +1273 return self.op_expressions("CLUSTER BY", expression) +1274 +1275 def distribute_sql(self, expression: exp.Distribute) -> str: +1276 return self.op_expressions("DISTRIBUTE BY", expression) +1277 +1278 def sort_sql(self, expression: exp.Sort) -> str: +1279 return self.op_expressions("SORT BY", expression) +1280 +1281 def ordered_sql(self, expression: exp.Ordered) -> str: +1282 desc = expression.args.get("desc") +1283 asc = not desc +1284 +1285 nulls_first = expression.args.get("nulls_first") +1286 nulls_last = not nulls_first +1287 nulls_are_large = self.null_ordering == "nulls_are_large" +1288 nulls_are_small = self.null_ordering == "nulls_are_small" +1289 nulls_are_last = self.null_ordering == "nulls_are_last" +1290 +1291 sort_order = " DESC" if desc else "" +1292 nulls_sort_change = "" +1293 if nulls_first and ( +1294 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last +1295 ): +1296 nulls_sort_change = " NULLS FIRST" +1297 elif ( +1298 nulls_last +1299 and ((asc and nulls_are_small) or (desc and nulls_are_large)) +1300 and not nulls_are_last +1301 ): +1302 nulls_sort_change = " NULLS LAST" +1303 +1304 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: +1305 self.unsupported( +1306 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" +1307 ) +1308 nulls_sort_change = "" +1309 +1310 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" +1311 +1312 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: +1313 partition = self.partition_by_sql(expression) +1314 order = self.sql(expression, "order") +1315 measures = self.sql(expression, "measures") +1316 measures = self.seg(f"MEASURES {measures}") if measures else "" +1317 rows = self.sql(expression, "rows") +1318 rows = self.seg(rows) if rows else "" +1319 after = self.sql(expression, "after") +1320 after = self.seg(after) if after else "" +1321 pattern = self.sql(expression, "pattern") +1322 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" +1323 define = self.sql(expression, "define") +1324 define = self.seg(f"DEFINE {define}") if define else "" +1325 body = "".join( +1326 ( +1327 partition, +1328 order, +1329 measures, +1330 rows, +1331 after, +1332 pattern, +1333 define, +1334 ) +1335 ) +1336 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}" +1337 +1338 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: +1339 limit = expression.args.get("limit") +1340 +1341 if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch): +1342 limit = exp.Limit(expression=limit.args.get("count")) +1343 elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit): +1344 limit = exp.Fetch(direction="FIRST", count=limit.expression) +1345 +1346 fetch = isinstance(limit, exp.Fetch) +1347 +1348 return csv( +1349 *sqls, +1350 *[self.sql(sql) for sql in expression.args.get("joins") or []], +1351 self.sql(expression, "match"), +1352 *[self.sql(sql) for sql in expression.args.get("laterals") or []], +1353 self.sql(expression, "where"), +1354 self.sql(expression, "group"), +1355 self.sql(expression, "having"), +1356 self.sql(expression, "qualify"), +1357 self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True) +1358 if expression.args.get("windows") +1359 else "", +1360 self.sql(expression, "distribute"), +1361 self.sql(expression, "sort"), +1362 self.sql(expression, "cluster"), +1363 self.sql(expression, "order"), +1364 self.sql(expression, "offset") if fetch else self.sql(limit), +1365 self.sql(limit) if fetch else self.sql(expression, "offset"), +1366 self.sql(expression, "lock"), +1367 self.sql(expression, "sample"), +1368 sep="", +1369 ) +1370 +1371 def select_sql(self, expression: exp.Select) -> str: +1372 kind = expression.args.get("kind") +1373 kind = f" AS {kind}" if kind else "" +1374 hint = self.sql(expression, "hint") +1375 distinct = self.sql(expression, "distinct") +1376 distinct = f" {distinct}" if distinct else "" +1377 expressions = self.expressions(expression) +1378 expressions = f"{self.sep()}{expressions}" if expressions else expressions +1379 sql = self.query_modifiers( +1380 expression, +1381 f"SELECT{kind}{hint}{distinct}{expressions}", +1382 self.sql(expression, "into", comment=False), +1383 self.sql(expression, "from", comment=False), +1384 ) +1385 return self.prepend_ctes(expression, sql) +1386 +1387 def schema_sql(self, expression: exp.Schema) -> str: +1388 this = self.sql(expression, "this") +1389 this = f"{this} " if this else "" +1390 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" +1391 return f"{this}{sql}" +1392 +1393 def star_sql(self, expression: exp.Star) -> str: +1394 except_ = self.expressions(expression, key="except", flat=True) +1395 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" +1396 replace = self.expressions(expression, key="replace", flat=True) +1397 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" +1398 return f"*{except_}{replace}" +1399 +1400 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: +1401 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" +1402 +1403 def parameter_sql(self, expression: exp.Parameter) -> str: +1404 this = self.sql(expression, "this") +1405 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" +1406 return f"{self.PARAMETER_TOKEN}{this}" +1407 +1408 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: +1409 this = self.sql(expression, "this") +1410 kind = expression.text("kind") +1411 if kind: +1412 kind = f"{kind}." +1413 return f"@@{kind}{this}" +1414 +1415 def placeholder_sql(self, expression: exp.Placeholder) -> str: +1416 return f":{expression.name}" if expression.name else "?" +1417 +1418 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: +1419 alias = self.sql(expression, "alias") +1420 alias = f"{sep}{alias}" if alias else "" 1421 -1422 def qualify_sql(self, expression: exp.Qualify) -> str: -1423 this = self.indent(self.sql(expression, "this")) -1424 return f"{self.seg('QUALIFY')}{self.sep()}{this}" -1425 -1426 def union_sql(self, expression: exp.Union) -> str: -1427 return self.prepend_ctes( -1428 expression, -1429 self.set_operation(expression, self.union_op(expression)), -1430 ) -1431 -1432 def union_op(self, expression: exp.Union) -> str: -1433 kind = " DISTINCT" if self.EXPLICIT_UNION else "" -1434 kind = kind if expression.args.get("distinct") else " ALL" -1435 return f"UNION{kind}" -1436 -1437 def unnest_sql(self, expression: exp.Unnest) -> str: -1438 args = self.expressions(expression, flat=True) -1439 alias = expression.args.get("alias") -1440 if alias and self.unnest_column_only: -1441 columns = alias.columns -1442 alias = self.sql(columns[0]) if columns else "" -1443 else: -1444 alias = self.sql(expression, "alias") -1445 alias = f" AS {alias}" if alias else alias -1446 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" -1447 offset = expression.args.get("offset") -1448 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" -1449 return f"UNNEST({args}){ordinality}{alias}{offset}" -1450 -1451 def where_sql(self, expression: exp.Where) -> str: -1452 this = self.indent(self.sql(expression, "this")) -1453 return f"{self.seg('WHERE')}{self.sep()}{this}" -1454 -1455 def window_sql(self, expression: exp.Window) -> str: -1456 this = self.sql(expression, "this") -1457 -1458 partition = self.partition_by_sql(expression) +1422 sql = self.query_modifiers( +1423 expression, +1424 self.wrap(expression), +1425 alias, +1426 self.expressions(expression, key="pivots", sep=" "), +1427 ) +1428 +1429 return self.prepend_ctes(expression, sql) +1430 +1431 def qualify_sql(self, expression: exp.Qualify) -> str: +1432 this = self.indent(self.sql(expression, "this")) +1433 return f"{self.seg('QUALIFY')}{self.sep()}{this}" +1434 +1435 def union_sql(self, expression: exp.Union) -> str: +1436 return self.prepend_ctes( +1437 expression, +1438 self.set_operation(expression, self.union_op(expression)), +1439 ) +1440 +1441 def union_op(self, expression: exp.Union) -> str: +1442 kind = " DISTINCT" if self.EXPLICIT_UNION else "" +1443 kind = kind if expression.args.get("distinct") else " ALL" +1444 return f"UNION{kind}" +1445 +1446 def unnest_sql(self, expression: exp.Unnest) -> str: +1447 args = self.expressions(expression, flat=True) +1448 alias = expression.args.get("alias") +1449 if alias and self.unnest_column_only: +1450 columns = alias.columns +1451 alias = self.sql(columns[0]) if columns else "" +1452 else: +1453 alias = self.sql(expression, "alias") +1454 alias = f" AS {alias}" if alias else alias +1455 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" +1456 offset = expression.args.get("offset") +1457 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" +1458 return f"UNNEST({args}){ordinality}{alias}{offset}" 1459 -1460 order = expression.args.get("order") -1461 order_sql = self.order_sql(order, flat=True) if order else "" -1462 -1463 partition_sql = partition + " " if partition and order else partition -1464 -1465 spec = expression.args.get("spec") -1466 spec_sql = " " + self.window_spec_sql(spec) if spec else "" -1467 -1468 alias = self.sql(expression, "alias") -1469 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" -1470 -1471 if not partition and not order and not spec and alias: -1472 return f"{this} {alias}" +1460 def where_sql(self, expression: exp.Where) -> str: +1461 this = self.indent(self.sql(expression, "this")) +1462 return f"{self.seg('WHERE')}{self.sep()}{this}" +1463 +1464 def window_sql(self, expression: exp.Window) -> str: +1465 this = self.sql(expression, "this") +1466 +1467 partition = self.partition_by_sql(expression) +1468 +1469 order = expression.args.get("order") +1470 order_sql = self.order_sql(order, flat=True) if order else "" +1471 +1472 partition_sql = partition + " " if partition and order else partition 1473 -1474 window_args = alias + partition_sql + order_sql + spec_sql -1475 -1476 return f"{this} ({window_args.strip()})" -1477 -1478 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: -1479 partition = self.expressions(expression, key="partition_by", flat=True) -1480 return f"PARTITION BY {partition}" if partition else "" -1481 -1482 def window_spec_sql(self, expression: exp.WindowSpec) -> str: -1483 kind = self.sql(expression, "kind") -1484 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") -1485 end = ( -1486 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") -1487 or "CURRENT ROW" -1488 ) -1489 return f"{kind} BETWEEN {start} AND {end}" +1474 spec = expression.args.get("spec") +1475 spec_sql = " " + self.window_spec_sql(spec) if spec else "" +1476 +1477 alias = self.sql(expression, "alias") +1478 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" +1479 +1480 if not partition and not order and not spec and alias: +1481 return f"{this} {alias}" +1482 +1483 window_args = alias + partition_sql + order_sql + spec_sql +1484 +1485 return f"{this} ({window_args.strip()})" +1486 +1487 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: +1488 partition = self.expressions(expression, key="partition_by", flat=True) +1489 return f"PARTITION BY {partition}" if partition else "" 1490 -1491 def withingroup_sql(self, expression: exp.WithinGroup) -> str: -1492 this = self.sql(expression, "this") -1493 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space -1494 return f"{this} WITHIN GROUP ({expression_sql})" -1495 -1496 def between_sql(self, expression: exp.Between) -> str: -1497 this = self.sql(expression, "this") -1498 low = self.sql(expression, "low") -1499 high = self.sql(expression, "high") -1500 return f"{this} BETWEEN {low} AND {high}" -1501 -1502 def bracket_sql(self, expression: exp.Bracket) -> str: -1503 expressions = apply_index_offset(expression.expressions, self.index_offset) -1504 expressions_sql = ", ".join(self.sql(e) for e in expressions) -1505 -1506 return f"{self.sql(expression, 'this')}[{expressions_sql}]" -1507 -1508 def all_sql(self, expression: exp.All) -> str: -1509 return f"ALL {self.wrap(expression)}" +1491 def window_spec_sql(self, expression: exp.WindowSpec) -> str: +1492 kind = self.sql(expression, "kind") +1493 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") +1494 end = ( +1495 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") +1496 or "CURRENT ROW" +1497 ) +1498 return f"{kind} BETWEEN {start} AND {end}" +1499 +1500 def withingroup_sql(self, expression: exp.WithinGroup) -> str: +1501 this = self.sql(expression, "this") +1502 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space +1503 return f"{this} WITHIN GROUP ({expression_sql})" +1504 +1505 def between_sql(self, expression: exp.Between) -> str: +1506 this = self.sql(expression, "this") +1507 low = self.sql(expression, "low") +1508 high = self.sql(expression, "high") +1509 return f"{this} BETWEEN {low} AND {high}" 1510 -1511 def any_sql(self, expression: exp.Any) -> str: -1512 this = self.sql(expression, "this") -1513 if isinstance(expression.this, exp.Subqueryable): -1514 this = self.wrap(this) -1515 return f"ANY {this}" +1511 def bracket_sql(self, expression: exp.Bracket) -> str: +1512 expressions = apply_index_offset(expression.expressions, self.index_offset) +1513 expressions_sql = ", ".join(self.sql(e) for e in expressions) +1514 +1515 return f"{self.sql(expression, 'this')}[{expressions_sql}]" 1516 -1517 def exists_sql(self, expression: exp.Exists) -> str: -1518 return f"EXISTS{self.wrap(expression)}" +1517 def all_sql(self, expression: exp.All) -> str: +1518 return f"ALL {self.wrap(expression)}" 1519 -1520 def case_sql(self, expression: exp.Case) -> str: +1520 def any_sql(self, expression: exp.Any) -> str: 1521 this = self.sql(expression, "this") -1522 statements = [f"CASE {this}" if this else "CASE"] -1523 -1524 for e in expression.args["ifs"]: -1525 statements.append(f"WHEN {self.sql(e, 'this')}") -1526 statements.append(f"THEN {self.sql(e, 'true')}") -1527 -1528 default = self.sql(expression, "default") -1529 -1530 if default: -1531 statements.append(f"ELSE {default}") +1522 if isinstance(expression.this, exp.Subqueryable): +1523 this = self.wrap(this) +1524 return f"ANY {this}" +1525 +1526 def exists_sql(self, expression: exp.Exists) -> str: +1527 return f"EXISTS{self.wrap(expression)}" +1528 +1529 def case_sql(self, expression: exp.Case) -> str: +1530 this = self.sql(expression, "this") +1531 statements = [f"CASE {this}" if this else "CASE"] 1532 -1533 statements.append("END") -1534 -1535 if self.pretty and self.text_width(statements) > self._max_text_width: -1536 return self.indent("\n".join(statements), skip_first=True, skip_last=True) -1537 -1538 return " ".join(statements) -1539 -1540 def constraint_sql(self, expression: exp.Constraint) -> str: -1541 this = self.sql(expression, "this") -1542 expressions = self.expressions(expression, flat=True) -1543 return f"CONSTRAINT {this} {expressions}" -1544 -1545 def extract_sql(self, expression: exp.Extract) -> str: -1546 this = self.sql(expression, "this") -1547 expression_sql = self.sql(expression, "expression") -1548 return f"EXTRACT({this} FROM {expression_sql})" -1549 -1550 def trim_sql(self, expression: exp.Trim) -> str: -1551 trim_type = self.sql(expression, "position") -1552 -1553 if trim_type == "LEADING": -1554 return self.func("LTRIM", expression.this) -1555 elif trim_type == "TRAILING": -1556 return self.func("RTRIM", expression.this) -1557 else: -1558 return self.func("TRIM", expression.this, expression.expression) -1559 -1560 def concat_sql(self, expression: exp.Concat) -> str: -1561 if len(expression.expressions) == 1: -1562 return self.sql(expression.expressions[0]) -1563 return self.function_fallback_sql(expression) -1564 -1565 def check_sql(self, expression: exp.Check) -> str: -1566 this = self.sql(expression, key="this") -1567 return f"CHECK ({this})" +1533 for e in expression.args["ifs"]: +1534 statements.append(f"WHEN {self.sql(e, 'this')}") +1535 statements.append(f"THEN {self.sql(e, 'true')}") +1536 +1537 default = self.sql(expression, "default") +1538 +1539 if default: +1540 statements.append(f"ELSE {default}") +1541 +1542 statements.append("END") +1543 +1544 if self.pretty and self.text_width(statements) > self._max_text_width: +1545 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1546 +1547 return " ".join(statements) +1548 +1549 def constraint_sql(self, expression: exp.Constraint) -> str: +1550 this = self.sql(expression, "this") +1551 expressions = self.expressions(expression, flat=True) +1552 return f"CONSTRAINT {this} {expressions}" +1553 +1554 def extract_sql(self, expression: exp.Extract) -> str: +1555 this = self.sql(expression, "this") +1556 expression_sql = self.sql(expression, "expression") +1557 return f"EXTRACT({this} FROM {expression_sql})" +1558 +1559 def trim_sql(self, expression: exp.Trim) -> str: +1560 trim_type = self.sql(expression, "position") +1561 +1562 if trim_type == "LEADING": +1563 return self.func("LTRIM", expression.this) +1564 elif trim_type == "TRAILING": +1565 return self.func("RTRIM", expression.this) +1566 else: +1567 return self.func("TRIM", expression.this, expression.expression) 1568 -1569 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: -1570 expressions = self.expressions(expression, flat=True) -1571 reference = self.sql(expression, "reference") -1572 reference = f" {reference}" if reference else "" -1573 delete = self.sql(expression, "delete") -1574 delete = f" ON DELETE {delete}" if delete else "" -1575 update = self.sql(expression, "update") -1576 update = f" ON UPDATE {update}" if update else "" -1577 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" -1578 -1579 def primarykey_sql(self, expression: exp.ForeignKey) -> str: -1580 expressions = self.expressions(expression, flat=True) -1581 options = self.expressions(expression, "options", flat=True, sep=" ") -1582 options = f" {options}" if options else "" -1583 return f"PRIMARY KEY ({expressions}){options}" -1584 -1585 def unique_sql(self, expression: exp.Unique) -> str: -1586 columns = self.expressions(expression, key="expressions") -1587 return f"UNIQUE ({columns})" -1588 -1589 def if_sql(self, expression: exp.If) -> str: -1590 return self.case_sql( -1591 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) -1592 ) +1569 def concat_sql(self, expression: exp.Concat) -> str: +1570 if len(expression.expressions) == 1: +1571 return self.sql(expression.expressions[0]) +1572 return self.function_fallback_sql(expression) +1573 +1574 def check_sql(self, expression: exp.Check) -> str: +1575 this = self.sql(expression, key="this") +1576 return f"CHECK ({this})" +1577 +1578 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: +1579 expressions = self.expressions(expression, flat=True) +1580 reference = self.sql(expression, "reference") +1581 reference = f" {reference}" if reference else "" +1582 delete = self.sql(expression, "delete") +1583 delete = f" ON DELETE {delete}" if delete else "" +1584 update = self.sql(expression, "update") +1585 update = f" ON UPDATE {update}" if update else "" +1586 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" +1587 +1588 def primarykey_sql(self, expression: exp.ForeignKey) -> str: +1589 expressions = self.expressions(expression, flat=True) +1590 options = self.expressions(expression, "options", flat=True, sep=" ") +1591 options = f" {options}" if options else "" +1592 return f"PRIMARY KEY ({expressions}){options}" 1593 -1594 def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str: -1595 return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}" -1596 -1597 def jsonobject_sql(self, expression: exp.JSONObject) -> str: -1598 expressions = self.expressions(expression) -1599 null_handling = expression.args.get("null_handling") -1600 null_handling = f" {null_handling}" if null_handling else "" -1601 unique_keys = expression.args.get("unique_keys") -1602 if unique_keys is not None: -1603 unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS" -1604 else: -1605 unique_keys = "" -1606 return_type = self.sql(expression, "return_type") -1607 return_type = f" RETURNING {return_type}" if return_type else "" -1608 format_json = " FORMAT JSON" if expression.args.get("format_json") else "" -1609 encoding = self.sql(expression, "encoding") -1610 encoding = f" ENCODING {encoding}" if encoding else "" -1611 return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})" -1612 -1613 def in_sql(self, expression: exp.In) -> str: -1614 query = expression.args.get("query") -1615 unnest = expression.args.get("unnest") -1616 field = expression.args.get("field") -1617 is_global = " GLOBAL" if expression.args.get("is_global") else "" -1618 -1619 if query: -1620 in_sql = self.wrap(query) -1621 elif unnest: -1622 in_sql = self.in_unnest_op(unnest) -1623 elif field: -1624 in_sql = self.sql(field) -1625 else: -1626 in_sql = f"({self.expressions(expression, flat=True)})" -1627 -1628 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" -1629 -1630 def in_unnest_op(self, unnest: exp.Unnest) -> str: -1631 return f"(SELECT {self.sql(unnest)})" +1594 def unique_sql(self, expression: exp.Unique) -> str: +1595 columns = self.expressions(expression, key="expressions") +1596 return f"UNIQUE ({columns})" +1597 +1598 def if_sql(self, expression: exp.If) -> str: +1599 return self.case_sql( +1600 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) +1601 ) +1602 +1603 def matchagainst_sql(self, expression: exp.MatchAgainst) -> str: +1604 modifier = expression.args.get("modifier") +1605 modifier = f" {modifier}" if modifier else "" +1606 return f"{self.func('MATCH', *expression.expressions)} AGAINST({self.sql(expression, 'this')}{modifier})" +1607 +1608 def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str: +1609 return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}" +1610 +1611 def jsonobject_sql(self, expression: exp.JSONObject) -> str: +1612 expressions = self.expressions(expression) +1613 null_handling = expression.args.get("null_handling") +1614 null_handling = f" {null_handling}" if null_handling else "" +1615 unique_keys = expression.args.get("unique_keys") +1616 if unique_keys is not None: +1617 unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS" +1618 else: +1619 unique_keys = "" +1620 return_type = self.sql(expression, "return_type") +1621 return_type = f" RETURNING {return_type}" if return_type else "" +1622 format_json = " FORMAT JSON" if expression.args.get("format_json") else "" +1623 encoding = self.sql(expression, "encoding") +1624 encoding = f" ENCODING {encoding}" if encoding else "" +1625 return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})" +1626 +1627 def in_sql(self, expression: exp.In) -> str: +1628 query = expression.args.get("query") +1629 unnest = expression.args.get("unnest") +1630 field = expression.args.get("field") +1631 is_global = " GLOBAL" if expression.args.get("is_global") else "" 1632 -1633 def interval_sql(self, expression: exp.Interval) -> str: -1634 this = expression.args.get("this") -1635 if this: -1636 this = ( -1637 f" {this}" -1638 if isinstance(this, exp.Literal) or isinstance(this, exp.Paren) -1639 else f" ({this})" -1640 ) -1641 else: -1642 this = "" -1643 unit = self.sql(expression, "unit") -1644 unit = f" {unit}" if unit else "" -1645 return f"INTERVAL{this}{unit}" +1633 if query: +1634 in_sql = self.wrap(query) +1635 elif unnest: +1636 in_sql = self.in_unnest_op(unnest) +1637 elif field: +1638 in_sql = self.sql(field) +1639 else: +1640 in_sql = f"({self.expressions(expression, flat=True)})" +1641 +1642 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" +1643 +1644 def in_unnest_op(self, unnest: exp.Unnest) -> str: +1645 return f"(SELECT {self.sql(unnest)})" 1646 -1647 def return_sql(self, expression: exp.Return) -> str: -1648 return f"RETURN {self.sql(expression, 'this')}" -1649 -1650 def reference_sql(self, expression: exp.Reference) -> str: -1651 this = self.sql(expression, "this") -1652 expressions = self.expressions(expression, flat=True) -1653 expressions = f"({expressions})" if expressions else "" -1654 options = self.expressions(expression, "options", flat=True, sep=" ") -1655 options = f" {options}" if options else "" -1656 return f"REFERENCES {this}{expressions}{options}" -1657 -1658 def anonymous_sql(self, expression: exp.Anonymous) -> str: -1659 return self.func(expression.name, *expression.expressions) +1647 def interval_sql(self, expression: exp.Interval) -> str: +1648 this = expression.args.get("this") +1649 if this: +1650 this = ( +1651 f" {this}" +1652 if isinstance(this, exp.Literal) or isinstance(this, exp.Paren) +1653 else f" ({this})" +1654 ) +1655 else: +1656 this = "" +1657 unit = self.sql(expression, "unit") +1658 unit = f" {unit}" if unit else "" +1659 return f"INTERVAL{this}{unit}" 1660 -1661 def paren_sql(self, expression: exp.Paren) -> str: -1662 if isinstance(expression.unnest(), exp.Select): -1663 sql = self.wrap(expression) -1664 else: -1665 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") -1666 sql = f"({sql}{self.seg(')', sep='')}" -1667 -1668 return self.prepend_ctes(expression, sql) -1669 -1670 def neg_sql(self, expression: exp.Neg) -> str: -1671 # This makes sure we don't convert "- - 5" to "--5", which is a comment -1672 this_sql = self.sql(expression, "this") -1673 sep = " " if this_sql[0] == "-" else "" -1674 return f"-{sep}{this_sql}" -1675 -1676 def not_sql(self, expression: exp.Not) -> str: -1677 return f"NOT {self.sql(expression, 'this')}" -1678 -1679 def alias_sql(self, expression: exp.Alias) -> str: -1680 to_sql = self.sql(expression, "alias") -1681 to_sql = f" AS {to_sql}" if to_sql else "" -1682 return f"{self.sql(expression, 'this')}{to_sql}" +1661 def return_sql(self, expression: exp.Return) -> str: +1662 return f"RETURN {self.sql(expression, 'this')}" +1663 +1664 def reference_sql(self, expression: exp.Reference) -> str: +1665 this = self.sql(expression, "this") +1666 expressions = self.expressions(expression, flat=True) +1667 expressions = f"({expressions})" if expressions else "" +1668 options = self.expressions(expression, "options", flat=True, sep=" ") +1669 options = f" {options}" if options else "" +1670 return f"REFERENCES {this}{expressions}{options}" +1671 +1672 def anonymous_sql(self, expression: exp.Anonymous) -> str: +1673 return self.func(expression.name, *expression.expressions) +1674 +1675 def paren_sql(self, expression: exp.Paren) -> str: +1676 if isinstance(expression.unnest(), exp.Select): +1677 sql = self.wrap(expression) +1678 else: +1679 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") +1680 sql = f"({sql}{self.seg(')', sep='')}" +1681 +1682 return self.prepend_ctes(expression, sql) 1683 -1684 def aliases_sql(self, expression: exp.Aliases) -> str: -1685 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" -1686 -1687 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: -1688 this = self.sql(expression, "this") -1689 zone = self.sql(expression, "zone") -1690 return f"{this} AT TIME ZONE {zone}" -1691 -1692 def add_sql(self, expression: exp.Add) -> str: -1693 return self.binary(expression, "+") -1694 -1695 def and_sql(self, expression: exp.And) -> str: -1696 return self.connector_sql(expression, "AND") +1684 def neg_sql(self, expression: exp.Neg) -> str: +1685 # This makes sure we don't convert "- - 5" to "--5", which is a comment +1686 this_sql = self.sql(expression, "this") +1687 sep = " " if this_sql[0] == "-" else "" +1688 return f"-{sep}{this_sql}" +1689 +1690 def not_sql(self, expression: exp.Not) -> str: +1691 return f"NOT {self.sql(expression, 'this')}" +1692 +1693 def alias_sql(self, expression: exp.Alias) -> str: +1694 to_sql = self.sql(expression, "alias") +1695 to_sql = f" AS {to_sql}" if to_sql else "" +1696 return f"{self.sql(expression, 'this')}{to_sql}" 1697 -1698 def connector_sql(self, expression: exp.Connector, op: str) -> str: -1699 if not self.pretty: -1700 return self.binary(expression, op) -1701 -1702 sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False)) -1703 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " -1704 return f"{sep}{op} ".join(sqls) +1698 def aliases_sql(self, expression: exp.Aliases) -> str: +1699 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" +1700 +1701 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: +1702 this = self.sql(expression, "this") +1703 zone = self.sql(expression, "zone") +1704 return f"{this} AT TIME ZONE {zone}" 1705 -1706 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: -1707 return self.binary(expression, "&") +1706 def add_sql(self, expression: exp.Add) -> str: +1707 return self.binary(expression, "+") 1708 -1709 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: -1710 return self.binary(expression, "<<") +1709 def and_sql(self, expression: exp.And) -> str: +1710 return self.connector_sql(expression, "AND") 1711 -1712 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: -1713 return f"~{self.sql(expression, 'this')}" -1714 -1715 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: -1716 return self.binary(expression, "|") -1717 -1718 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: -1719 return self.binary(expression, ">>") -1720 -1721 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: -1722 return self.binary(expression, "^") -1723 -1724 def cast_sql(self, expression: exp.Cast) -> str: -1725 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -1726 -1727 def currentdate_sql(self, expression: exp.CurrentDate) -> str: -1728 zone = self.sql(expression, "this") -1729 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" -1730 -1731 def collate_sql(self, expression: exp.Collate) -> str: -1732 return self.binary(expression, "COLLATE") -1733 -1734 def command_sql(self, expression: exp.Command) -> str: -1735 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" -1736 -1737 def comment_sql(self, expression: exp.Comment) -> str: -1738 this = self.sql(expression, "this") -1739 kind = expression.args["kind"] -1740 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " -1741 expression_sql = self.sql(expression, "expression") -1742 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" -1743 -1744 def transaction_sql(self, expression: exp.Transaction) -> str: -1745 return "BEGIN" -1746 -1747 def commit_sql(self, expression: exp.Commit) -> str: -1748 chain = expression.args.get("chain") -1749 if chain is not None: -1750 chain = " AND CHAIN" if chain else " AND NO CHAIN" -1751 -1752 return f"COMMIT{chain or ''}" -1753 -1754 def rollback_sql(self, expression: exp.Rollback) -> str: -1755 savepoint = expression.args.get("savepoint") -1756 savepoint = f" TO {savepoint}" if savepoint else "" -1757 return f"ROLLBACK{savepoint}" -1758 -1759 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: -1760 this = self.sql(expression, "this") -1761 -1762 dtype = self.sql(expression, "dtype") -1763 if dtype: -1764 collate = self.sql(expression, "collate") -1765 collate = f" COLLATE {collate}" if collate else "" -1766 using = self.sql(expression, "using") -1767 using = f" USING {using}" if using else "" -1768 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" -1769 -1770 default = self.sql(expression, "default") -1771 if default: -1772 return f"ALTER COLUMN {this} SET DEFAULT {default}" -1773 -1774 if not expression.args.get("drop"): -1775 self.unsupported("Unsupported ALTER COLUMN syntax") -1776 -1777 return f"ALTER COLUMN {this} DROP DEFAULT" -1778 -1779 def renametable_sql(self, expression: exp.RenameTable) -> str: -1780 this = self.sql(expression, "this") -1781 return f"RENAME TO {this}" -1782 -1783 def altertable_sql(self, expression: exp.AlterTable) -> str: -1784 actions = expression.args["actions"] -1785 -1786 if isinstance(actions[0], exp.ColumnDef): -1787 actions = self.expressions(expression, "actions", prefix="ADD COLUMN ") -1788 elif isinstance(actions[0], exp.Schema): -1789 actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ") -1790 elif isinstance(actions[0], exp.Delete): -1791 actions = self.expressions(expression, "actions", flat=True) -1792 else: -1793 actions = self.expressions(expression, "actions") -1794 -1795 exists = " IF EXISTS" if expression.args.get("exists") else "" -1796 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" -1797 -1798 def droppartition_sql(self, expression: exp.DropPartition) -> str: -1799 expressions = self.expressions(expression) -1800 exists = " IF EXISTS " if expression.args.get("exists") else " " -1801 return f"DROP{exists}{expressions}" -1802 -1803 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: -1804 this = self.sql(expression, "this") -1805 expression_ = self.sql(expression, "expression") -1806 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" -1807 -1808 enforced = expression.args.get("enforced") -1809 if enforced is not None: -1810 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" +1712 def connector_sql(self, expression: exp.Connector, op: str) -> str: +1713 if not self.pretty: +1714 return self.binary(expression, op) +1715 +1716 sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False)) +1717 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " +1718 return f"{sep}{op} ".join(sqls) +1719 +1720 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: +1721 return self.binary(expression, "&") +1722 +1723 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: +1724 return self.binary(expression, "<<") +1725 +1726 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: +1727 return f"~{self.sql(expression, 'this')}" +1728 +1729 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: +1730 return self.binary(expression, "|") +1731 +1732 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: +1733 return self.binary(expression, ">>") +1734 +1735 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: +1736 return self.binary(expression, "^") +1737 +1738 def cast_sql(self, expression: exp.Cast) -> str: +1739 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1740 +1741 def currentdate_sql(self, expression: exp.CurrentDate) -> str: +1742 zone = self.sql(expression, "this") +1743 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" +1744 +1745 def collate_sql(self, expression: exp.Collate) -> str: +1746 return self.binary(expression, "COLLATE") +1747 +1748 def command_sql(self, expression: exp.Command) -> str: +1749 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" +1750 +1751 def comment_sql(self, expression: exp.Comment) -> str: +1752 this = self.sql(expression, "this") +1753 kind = expression.args["kind"] +1754 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " +1755 expression_sql = self.sql(expression, "expression") +1756 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" +1757 +1758 def transaction_sql(self, expression: exp.Transaction) -> str: +1759 return "BEGIN" +1760 +1761 def commit_sql(self, expression: exp.Commit) -> str: +1762 chain = expression.args.get("chain") +1763 if chain is not None: +1764 chain = " AND CHAIN" if chain else " AND NO CHAIN" +1765 +1766 return f"COMMIT{chain or ''}" +1767 +1768 def rollback_sql(self, expression: exp.Rollback) -> str: +1769 savepoint = expression.args.get("savepoint") +1770 savepoint = f" TO {savepoint}" if savepoint else "" +1771 return f"ROLLBACK{savepoint}" +1772 +1773 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: +1774 this = self.sql(expression, "this") +1775 +1776 dtype = self.sql(expression, "dtype") +1777 if dtype: +1778 collate = self.sql(expression, "collate") +1779 collate = f" COLLATE {collate}" if collate else "" +1780 using = self.sql(expression, "using") +1781 using = f" USING {using}" if using else "" +1782 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" +1783 +1784 default = self.sql(expression, "default") +1785 if default: +1786 return f"ALTER COLUMN {this} SET DEFAULT {default}" +1787 +1788 if not expression.args.get("drop"): +1789 self.unsupported("Unsupported ALTER COLUMN syntax") +1790 +1791 return f"ALTER COLUMN {this} DROP DEFAULT" +1792 +1793 def renametable_sql(self, expression: exp.RenameTable) -> str: +1794 this = self.sql(expression, "this") +1795 return f"RENAME TO {this}" +1796 +1797 def altertable_sql(self, expression: exp.AlterTable) -> str: +1798 actions = expression.args["actions"] +1799 +1800 if isinstance(actions[0], exp.ColumnDef): +1801 actions = self.expressions(expression, "actions", prefix="ADD COLUMN ") +1802 elif isinstance(actions[0], exp.Schema): +1803 actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ") +1804 elif isinstance(actions[0], exp.Delete): +1805 actions = self.expressions(expression, "actions", flat=True) +1806 else: +1807 actions = self.expressions(expression, "actions") +1808 +1809 exists = " IF EXISTS" if expression.args.get("exists") else "" +1810 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" 1811 -1812 return f"{add_constraint} {expression_}" -1813 -1814 def distinct_sql(self, expression: exp.Distinct) -> str: -1815 this = self.expressions(expression, flat=True) -1816 this = f" {this}" if this else "" -1817 -1818 on = self.sql(expression, "on") -1819 on = f" ON {on}" if on else "" -1820 return f"DISTINCT{this}{on}" +1812 def droppartition_sql(self, expression: exp.DropPartition) -> str: +1813 expressions = self.expressions(expression) +1814 exists = " IF EXISTS " if expression.args.get("exists") else " " +1815 return f"DROP{exists}{expressions}" +1816 +1817 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: +1818 this = self.sql(expression, "this") +1819 expression_ = self.sql(expression, "expression") +1820 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" 1821 -1822 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: -1823 return f"{self.sql(expression, 'this')} IGNORE NULLS" -1824 -1825 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: -1826 return f"{self.sql(expression, 'this')} RESPECT NULLS" +1822 enforced = expression.args.get("enforced") +1823 if enforced is not None: +1824 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" +1825 +1826 return f"{add_constraint} {expression_}" 1827 -1828 def intdiv_sql(self, expression: exp.IntDiv) -> str: -1829 return self.sql( -1830 exp.Cast( -1831 this=exp.Div(this=expression.this, expression=expression.expression), -1832 to=exp.DataType(this=exp.DataType.Type.INT), -1833 ) -1834 ) +1828 def distinct_sql(self, expression: exp.Distinct) -> str: +1829 this = self.expressions(expression, flat=True) +1830 this = f" {this}" if this else "" +1831 +1832 on = self.sql(expression, "on") +1833 on = f" ON {on}" if on else "" +1834 return f"DISTINCT{this}{on}" 1835 -1836 def dpipe_sql(self, expression: exp.DPipe) -> str: -1837 return self.binary(expression, "||") +1836 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: +1837 return f"{self.sql(expression, 'this')} IGNORE NULLS" 1838 -1839 def div_sql(self, expression: exp.Div) -> str: -1840 return self.binary(expression, "/") +1839 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: +1840 return f"{self.sql(expression, 'this')} RESPECT NULLS" 1841 -1842 def overlaps_sql(self, expression: exp.Overlaps) -> str: -1843 return self.binary(expression, "OVERLAPS") -1844 -1845 def distance_sql(self, expression: exp.Distance) -> str: -1846 return self.binary(expression, "<->") -1847 -1848 def dot_sql(self, expression: exp.Dot) -> str: -1849 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" -1850 -1851 def eq_sql(self, expression: exp.EQ) -> str: -1852 return self.binary(expression, "=") -1853 -1854 def escape_sql(self, expression: exp.Escape) -> str: -1855 return self.binary(expression, "ESCAPE") -1856 -1857 def glob_sql(self, expression: exp.Glob) -> str: -1858 return self.binary(expression, "GLOB") -1859 -1860 def gt_sql(self, expression: exp.GT) -> str: -1861 return self.binary(expression, ">") -1862 -1863 def gte_sql(self, expression: exp.GTE) -> str: -1864 return self.binary(expression, ">=") -1865 -1866 def ilike_sql(self, expression: exp.ILike) -> str: -1867 return self.binary(expression, "ILIKE") -1868 -1869 def is_sql(self, expression: exp.Is) -> str: -1870 return self.binary(expression, "IS") -1871 -1872 def like_sql(self, expression: exp.Like) -> str: -1873 return self.binary(expression, "LIKE") -1874 -1875 def similarto_sql(self, expression: exp.SimilarTo) -> str: -1876 return self.binary(expression, "SIMILAR TO") -1877 -1878 def lt_sql(self, expression: exp.LT) -> str: -1879 return self.binary(expression, "<") -1880 -1881 def lte_sql(self, expression: exp.LTE) -> str: -1882 return self.binary(expression, "<=") -1883 -1884 def mod_sql(self, expression: exp.Mod) -> str: -1885 return self.binary(expression, "%") -1886 -1887 def mul_sql(self, expression: exp.Mul) -> str: -1888 return self.binary(expression, "*") -1889 -1890 def neq_sql(self, expression: exp.NEQ) -> str: -1891 return self.binary(expression, "<>") -1892 -1893 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: -1894 return self.binary(expression, "IS NOT DISTINCT FROM") -1895 -1896 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: -1897 return self.binary(expression, "IS DISTINCT FROM") -1898 -1899 def or_sql(self, expression: exp.Or) -> str: -1900 return self.connector_sql(expression, "OR") -1901 -1902 def slice_sql(self, expression: exp.Slice) -> str: -1903 return self.binary(expression, ":") -1904 -1905 def sub_sql(self, expression: exp.Sub) -> str: -1906 return self.binary(expression, "-") -1907 -1908 def trycast_sql(self, expression: exp.TryCast) -> str: -1909 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -1910 -1911 def use_sql(self, expression: exp.Use) -> str: -1912 kind = self.sql(expression, "kind") -1913 kind = f" {kind}" if kind else "" -1914 this = self.sql(expression, "this") -1915 this = f" {this}" if this else "" -1916 return f"USE{kind}{this}" -1917 -1918 def binary(self, expression: exp.Binary, op: str) -> str: -1919 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" -1920 -1921 def function_fallback_sql(self, expression: exp.Func) -> str: -1922 args = [] -1923 for arg_value in expression.args.values(): -1924 if isinstance(arg_value, list): -1925 for value in arg_value: -1926 args.append(value) -1927 else: -1928 args.append(arg_value) -1929 -1930 return self.func(expression.sql_name(), *args) -1931 -1932 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: -1933 return f"{self.normalize_func(name)}({self.format_args(*args)})" -1934 -1935 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: -1936 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) -1937 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: -1938 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) -1939 return ", ".join(arg_sqls) +1842 def intdiv_sql(self, expression: exp.IntDiv) -> str: +1843 return self.sql( +1844 exp.Cast( +1845 this=exp.Div(this=expression.this, expression=expression.expression), +1846 to=exp.DataType(this=exp.DataType.Type.INT), +1847 ) +1848 ) +1849 +1850 def dpipe_sql(self, expression: exp.DPipe) -> str: +1851 return self.binary(expression, "||") +1852 +1853 def div_sql(self, expression: exp.Div) -> str: +1854 return self.binary(expression, "/") +1855 +1856 def overlaps_sql(self, expression: exp.Overlaps) -> str: +1857 return self.binary(expression, "OVERLAPS") +1858 +1859 def distance_sql(self, expression: exp.Distance) -> str: +1860 return self.binary(expression, "<->") +1861 +1862 def dot_sql(self, expression: exp.Dot) -> str: +1863 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" +1864 +1865 def eq_sql(self, expression: exp.EQ) -> str: +1866 return self.binary(expression, "=") +1867 +1868 def escape_sql(self, expression: exp.Escape) -> str: +1869 return self.binary(expression, "ESCAPE") +1870 +1871 def glob_sql(self, expression: exp.Glob) -> str: +1872 return self.binary(expression, "GLOB") +1873 +1874 def gt_sql(self, expression: exp.GT) -> str: +1875 return self.binary(expression, ">") +1876 +1877 def gte_sql(self, expression: exp.GTE) -> str: +1878 return self.binary(expression, ">=") +1879 +1880 def ilike_sql(self, expression: exp.ILike) -> str: +1881 return self.binary(expression, "ILIKE") +1882 +1883 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: +1884 return self.binary(expression, "ILIKE ANY") +1885 +1886 def is_sql(self, expression: exp.Is) -> str: +1887 return self.binary(expression, "IS") +1888 +1889 def like_sql(self, expression: exp.Like) -> str: +1890 return self.binary(expression, "LIKE") +1891 +1892 def likeany_sql(self, expression: exp.LikeAny) -> str: +1893 return self.binary(expression, "LIKE ANY") +1894 +1895 def similarto_sql(self, expression: exp.SimilarTo) -> str: +1896 return self.binary(expression, "SIMILAR TO") +1897 +1898 def lt_sql(self, expression: exp.LT) -> str: +1899 return self.binary(expression, "<") +1900 +1901 def lte_sql(self, expression: exp.LTE) -> str: +1902 return self.binary(expression, "<=") +1903 +1904 def mod_sql(self, expression: exp.Mod) -> str: +1905 return self.binary(expression, "%") +1906 +1907 def mul_sql(self, expression: exp.Mul) -> str: +1908 return self.binary(expression, "*") +1909 +1910 def neq_sql(self, expression: exp.NEQ) -> str: +1911 return self.binary(expression, "<>") +1912 +1913 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: +1914 return self.binary(expression, "IS NOT DISTINCT FROM") +1915 +1916 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: +1917 return self.binary(expression, "IS DISTINCT FROM") +1918 +1919 def or_sql(self, expression: exp.Or) -> str: +1920 return self.connector_sql(expression, "OR") +1921 +1922 def slice_sql(self, expression: exp.Slice) -> str: +1923 return self.binary(expression, ":") +1924 +1925 def sub_sql(self, expression: exp.Sub) -> str: +1926 return self.binary(expression, "-") +1927 +1928 def trycast_sql(self, expression: exp.TryCast) -> str: +1929 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1930 +1931 def use_sql(self, expression: exp.Use) -> str: +1932 kind = self.sql(expression, "kind") +1933 kind = f" {kind}" if kind else "" +1934 this = self.sql(expression, "this") +1935 this = f" {this}" if this else "" +1936 return f"USE{kind}{this}" +1937 +1938 def binary(self, expression: exp.Binary, op: str) -> str: +1939 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" 1940 -1941 def text_width(self, args: t.Iterable) -> int: -1942 return sum(len(arg) for arg in args) -1943 -1944 def format_time(self, expression: exp.Expression) -> t.Optional[str]: -1945 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) -1946 -1947 def expressions( -1948 self, -1949 expression: exp.Expression, -1950 key: t.Optional[str] = None, -1951 flat: bool = False, -1952 indent: bool = True, -1953 sep: str = ", ", -1954 prefix: str = "", -1955 ) -> str: -1956 expressions = expression.args.get(key or "expressions") -1957 -1958 if not expressions: -1959 return "" +1941 def function_fallback_sql(self, expression: exp.Func) -> str: +1942 args = [] +1943 for arg_value in expression.args.values(): +1944 if isinstance(arg_value, list): +1945 for value in arg_value: +1946 args.append(value) +1947 else: +1948 args.append(arg_value) +1949 +1950 return self.func(expression.sql_name(), *args) +1951 +1952 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: +1953 return f"{self.normalize_func(name)}({self.format_args(*args)})" +1954 +1955 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: +1956 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) +1957 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: +1958 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) +1959 return ", ".join(arg_sqls) 1960 -1961 if flat: -1962 return sep.join(self.sql(e) for e in expressions) +1961 def text_width(self, args: t.Iterable) -> int: +1962 return sum(len(arg) for arg in args) 1963 -1964 num_sqls = len(expressions) -1965 -1966 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly -1967 pad = " " * self.pad -1968 stripped_sep = sep.strip() -1969 -1970 result_sqls = [] -1971 for i, e in enumerate(expressions): -1972 sql = self.sql(e, comment=False) -1973 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" -1974 -1975 if self.pretty: -1976 if self._leading_comma: -1977 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") -1978 else: -1979 result_sqls.append( -1980 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" -1981 ) -1982 else: -1983 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") -1984 -1985 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) -1986 return self.indent(result_sql, skip_first=False) if indent else result_sql -1987 -1988 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: -1989 flat = flat or isinstance(expression.parent, exp.Properties) -1990 expressions_sql = self.expressions(expression, flat=flat) -1991 if flat: -1992 return f"{op} {expressions_sql}" -1993 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" +1964 def format_time(self, expression: exp.Expression) -> t.Optional[str]: +1965 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) +1966 +1967 def expressions( +1968 self, +1969 expression: exp.Expression, +1970 key: t.Optional[str] = None, +1971 flat: bool = False, +1972 indent: bool = True, +1973 sep: str = ", ", +1974 prefix: str = "", +1975 ) -> str: +1976 expressions = expression.args.get(key or "expressions") +1977 +1978 if not expressions: +1979 return "" +1980 +1981 if flat: +1982 return sep.join(self.sql(e) for e in expressions) +1983 +1984 num_sqls = len(expressions) +1985 +1986 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly +1987 pad = " " * self.pad +1988 stripped_sep = sep.strip() +1989 +1990 result_sqls = [] +1991 for i, e in enumerate(expressions): +1992 sql = self.sql(e, comment=False) +1993 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" 1994 -1995 def naked_property(self, expression: exp.Property) -> str: -1996 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) -1997 if not property_name: -1998 self.unsupported(f"Unsupported property {expression.__class__.__name__}") -1999 return f"{property_name} {self.sql(expression, 'this')}" -2000 -2001 def set_operation(self, expression: exp.Expression, op: str) -> str: -2002 this = self.sql(expression, "this") -2003 op = self.seg(op) -2004 return self.query_modifiers( -2005 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" -2006 ) +1995 if self.pretty: +1996 if self._leading_comma: +1997 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") +1998 else: +1999 result_sqls.append( +2000 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" +2001 ) +2002 else: +2003 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") +2004 +2005 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) +2006 return self.indent(result_sql, skip_first=False) if indent else result_sql 2007 -2008 def tag_sql(self, expression: exp.Tag) -> str: -2009 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" -2010 -2011 def token_sql(self, token_type: TokenType) -> str: -2012 return self.TOKEN_MAPPING.get(token_type, token_type.name) -2013 -2014 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: -2015 this = self.sql(expression, "this") -2016 expressions = self.no_identify(self.expressions, expression) -2017 expressions = ( -2018 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" -2019 ) -2020 return f"{this}{expressions}" -2021 -2022 def joinhint_sql(self, expression: exp.JoinHint) -> str: -2023 this = self.sql(expression, "this") -2024 expressions = self.expressions(expression, flat=True) -2025 return f"{this}({expressions})" -2026 -2027 def kwarg_sql(self, expression: exp.Kwarg) -> str: -2028 return self.binary(expression, "=>") -2029 -2030 def when_sql(self, expression: exp.When) -> str: -2031 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" -2032 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" -2033 condition = self.sql(expression, "condition") -2034 condition = f" AND {condition}" if condition else "" -2035 -2036 then_expression = expression.args.get("then") -2037 if isinstance(then_expression, exp.Insert): -2038 then = f"INSERT {self.sql(then_expression, 'this')}" -2039 if "expression" in then_expression.args: -2040 then += f" VALUES {self.sql(then_expression, 'expression')}" -2041 elif isinstance(then_expression, exp.Update): -2042 if isinstance(then_expression.args.get("expressions"), exp.Star): -2043 then = f"UPDATE {self.sql(then_expression, 'expressions')}" -2044 else: -2045 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" -2046 else: -2047 then = self.sql(then_expression) -2048 return f"WHEN {matched}{source}{condition} THEN {then}" +2008 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: +2009 flat = flat or isinstance(expression.parent, exp.Properties) +2010 expressions_sql = self.expressions(expression, flat=flat) +2011 if flat: +2012 return f"{op} {expressions_sql}" +2013 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" +2014 +2015 def naked_property(self, expression: exp.Property) -> str: +2016 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) +2017 if not property_name: +2018 self.unsupported(f"Unsupported property {expression.__class__.__name__}") +2019 return f"{property_name} {self.sql(expression, 'this')}" +2020 +2021 def set_operation(self, expression: exp.Expression, op: str) -> str: +2022 this = self.sql(expression, "this") +2023 op = self.seg(op) +2024 return self.query_modifiers( +2025 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" +2026 ) +2027 +2028 def tag_sql(self, expression: exp.Tag) -> str: +2029 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" +2030 +2031 def token_sql(self, token_type: TokenType) -> str: +2032 return self.TOKEN_MAPPING.get(token_type, token_type.name) +2033 +2034 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: +2035 this = self.sql(expression, "this") +2036 expressions = self.no_identify(self.expressions, expression) +2037 expressions = ( +2038 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" +2039 ) +2040 return f"{this}{expressions}" +2041 +2042 def joinhint_sql(self, expression: exp.JoinHint) -> str: +2043 this = self.sql(expression, "this") +2044 expressions = self.expressions(expression, flat=True) +2045 return f"{this}({expressions})" +2046 +2047 def kwarg_sql(self, expression: exp.Kwarg) -> str: +2048 return self.binary(expression, "=>") 2049 -2050 def merge_sql(self, expression: exp.Merge) -> str: -2051 this = self.sql(expression, "this") -2052 using = f"USING {self.sql(expression, 'using')}" -2053 on = f"ON {self.sql(expression, 'on')}" -2054 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" +2050 def when_sql(self, expression: exp.When) -> str: +2051 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" +2052 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" +2053 condition = self.sql(expression, "condition") +2054 condition = f" AND {condition}" if condition else "" 2055 -2056 def tochar_sql(self, expression: exp.ToChar) -> str: -2057 if expression.args.get("format"): -2058 self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function") -2059 -2060 return self.sql(exp.cast(expression.this, "text")) +2056 then_expression = expression.args.get("then") +2057 if isinstance(then_expression, exp.Insert): +2058 then = f"INSERT {self.sql(then_expression, 'this')}" +2059 if "expression" in then_expression.args: +2060 then += f" VALUES {self.sql(then_expression, 'expression')}" +2061 elif isinstance(then_expression, exp.Update): +2062 if isinstance(then_expression.args.get("expressions"), exp.Star): +2063 then = f"UPDATE {self.sql(then_expression, 'expressions')}" +2064 else: +2065 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" +2066 else: +2067 then = self.sql(then_expression) +2068 return f"WHEN {matched}{source}{condition} THEN {then}" +2069 +2070 def merge_sql(self, expression: exp.Merge) -> str: +2071 this = self.sql(expression, "this") +2072 using = f"USING {self.sql(expression, 'using')}" +2073 on = f"ON {self.sql(expression, 'on')}" +2074 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" +2075 +2076 def tochar_sql(self, expression: exp.ToChar) -> str: +2077 if expression.args.get("format"): +2078 self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function") +2079 +2080 return self.sql(exp.cast(expression.this, "text"))
    @@ -5389,6 +5441,28 @@ Default: True + +
    + +
    + + def + columnposition_sql(self, expression: sqlglot.expressions.ColumnPosition) -> str: + + + +
    + +
    470    def columnposition_sql(self, expression: exp.ColumnPosition) -> str:
    +471        this = self.sql(expression, "this")
    +472        this = f" {this}" if this else ""
    +473        position = self.sql(expression, "position")
    +474        return f"{position}{this}"
    +
    + + + +
    @@ -5401,15 +5475,17 @@ Default: True
    -
    470    def columndef_sql(self, expression: exp.ColumnDef) -> str:
    -471        column = self.sql(expression, "this")
    -472        kind = self.sql(expression, "kind")
    -473        constraints = self.expressions(expression, key="constraints", sep=" ", flat=True)
    -474        exists = "IF NOT EXISTS " if expression.args.get("exists") else ""
    -475        kind = f" {kind}" if kind else ""
    -476        constraints = f" {constraints}" if constraints else ""
    -477
    -478        return f"{exists}{column}{kind}{constraints}"
    +            
    476    def columndef_sql(self, expression: exp.ColumnDef) -> str:
    +477        column = self.sql(expression, "this")
    +478        kind = self.sql(expression, "kind")
    +479        constraints = self.expressions(expression, key="constraints", sep=" ", flat=True)
    +480        exists = "IF NOT EXISTS " if expression.args.get("exists") else ""
    +481        kind = f" {kind}" if kind else ""
    +482        constraints = f" {constraints}" if constraints else ""
    +483        position = self.sql(expression, "position")
    +484        position = f" {position}" if position else ""
    +485
    +486        return f"{exists}{column}{kind}{constraints}{position}"
     
    @@ -5427,10 +5503,10 @@ Default: True
    -
    480    def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str:
    -481        this = self.sql(expression, "this")
    -482        kind_sql = self.sql(expression, "kind")
    -483        return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql
    +            
    488    def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str:
    +489        this = self.sql(expression, "this")
    +490        kind_sql = self.sql(expression, "kind")
    +491        return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql
     
    @@ -5448,8 +5524,8 @@ Default: True
    -
    485    def autoincrementcolumnconstraint_sql(self, _) -> str:
    -486        return self.token_sql(TokenType.AUTO_INCREMENT)
    +            
    493    def autoincrementcolumnconstraint_sql(self, _) -> str:
    +494        return self.token_sql(TokenType.AUTO_INCREMENT)
     
    @@ -5467,13 +5543,13 @@ Default: True
    -
    488    def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str:
    -489        if isinstance(expression.this, list):
    -490            this = self.wrap(self.expressions(expression, key="this", flat=True))
    -491        else:
    -492            this = self.sql(expression, "this")
    -493
    -494        return f"COMPRESS {this}"
    +            
    496    def compresscolumnconstraint_sql(self, expression: exp.CompressColumnConstraint) -> str:
    +497        if isinstance(expression.this, list):
    +498            this = self.wrap(self.expressions(expression, key="this", flat=True))
    +499        else:
    +500            this = self.sql(expression, "this")
    +501
    +502        return f"COMPRESS {this}"
     
    @@ -5491,30 +5567,30 @@ Default: True
    -
    496    def generatedasidentitycolumnconstraint_sql(
    -497        self, expression: exp.GeneratedAsIdentityColumnConstraint
    -498    ) -> str:
    -499        this = ""
    -500        if expression.this is not None:
    -501            this = " ALWAYS " if expression.this else " BY DEFAULT "
    -502        start = expression.args.get("start")
    -503        start = f"START WITH {start}" if start else ""
    -504        increment = expression.args.get("increment")
    -505        increment = f" INCREMENT BY {increment}" if increment else ""
    -506        minvalue = expression.args.get("minvalue")
    -507        minvalue = f" MINVALUE {minvalue}" if minvalue else ""
    -508        maxvalue = expression.args.get("maxvalue")
    -509        maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else ""
    -510        cycle = expression.args.get("cycle")
    -511        cycle_sql = ""
    -512        if cycle is not None:
    -513            cycle_sql = f"{' NO' if not cycle else ''} CYCLE"
    -514            cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql
    -515        sequence_opts = ""
    -516        if start or increment or cycle_sql:
    -517            sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}"
    -518            sequence_opts = f" ({sequence_opts.strip()})"
    -519        return f"GENERATED{this}AS IDENTITY{sequence_opts}"
    +            
    504    def generatedasidentitycolumnconstraint_sql(
    +505        self, expression: exp.GeneratedAsIdentityColumnConstraint
    +506    ) -> str:
    +507        this = ""
    +508        if expression.this is not None:
    +509            this = " ALWAYS " if expression.this else " BY DEFAULT "
    +510        start = expression.args.get("start")
    +511        start = f"START WITH {start}" if start else ""
    +512        increment = expression.args.get("increment")
    +513        increment = f" INCREMENT BY {increment}" if increment else ""
    +514        minvalue = expression.args.get("minvalue")
    +515        minvalue = f" MINVALUE {minvalue}" if minvalue else ""
    +516        maxvalue = expression.args.get("maxvalue")
    +517        maxvalue = f" MAXVALUE {maxvalue}" if maxvalue else ""
    +518        cycle = expression.args.get("cycle")
    +519        cycle_sql = ""
    +520        if cycle is not None:
    +521            cycle_sql = f"{' NO' if not cycle else ''} CYCLE"
    +522            cycle_sql = cycle_sql.strip() if not start and not increment else cycle_sql
    +523        sequence_opts = ""
    +524        if start or increment or cycle_sql:
    +525            sequence_opts = f"{start}{increment}{minvalue}{maxvalue}{cycle_sql}"
    +526            sequence_opts = f" ({sequence_opts.strip()})"
    +527        return f"GENERATED{this}AS IDENTITY{sequence_opts}"
     
    @@ -5532,8 +5608,8 @@ Default: True
    -
    521    def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str:
    -522        return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL"
    +            
    529    def notnullcolumnconstraint_sql(self, expression: exp.NotNullColumnConstraint) -> str:
    +530        return f"{'' if expression.args.get('allow_null') else 'NOT '}NULL"
     
    @@ -5551,11 +5627,11 @@ Default: True
    -
    524    def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str:
    -525        desc = expression.args.get("desc")
    -526        if desc is not None:
    -527            return f"PRIMARY KEY{' DESC' if desc else ' ASC'}"
    -528        return f"PRIMARY KEY"
    +            
    532    def primarykeycolumnconstraint_sql(self, expression: exp.PrimaryKeyColumnConstraint) -> str:
    +533        desc = expression.args.get("desc")
    +534        if desc is not None:
    +535            return f"PRIMARY KEY{' DESC' if desc else ' ASC'}"
    +536        return f"PRIMARY KEY"
     
    @@ -5573,8 +5649,8 @@ Default: True
    -
    530    def uniquecolumnconstraint_sql(self, _) -> str:
    -531        return "UNIQUE"
    +            
    538    def uniquecolumnconstraint_sql(self, _) -> str:
    +539        return "UNIQUE"
     
    @@ -5592,121 +5668,121 @@ Default: True
    -
    533    def create_sql(self, expression: exp.Create) -> str:
    -534        kind = self.sql(expression, "kind").upper()
    -535        properties = expression.args.get("properties")
    -536        properties_exp = expression.copy()
    -537        properties_locs = self.locate_properties(properties) if properties else {}
    -538        if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get(
    -539            exp.Properties.Location.POST_WITH
    -540        ):
    -541            properties_exp.set(
    -542                "properties",
    -543                exp.Properties(
    -544                    expressions=[
    -545                        *properties_locs[exp.Properties.Location.POST_SCHEMA],
    -546                        *properties_locs[exp.Properties.Location.POST_WITH],
    -547                    ]
    -548                ),
    -549            )
    -550        if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME):
    -551            this_name = self.sql(expression.this, "this")
    -552            this_properties = self.properties(
    -553                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]),
    -554                wrapped=False,
    -555            )
    -556            this_schema = f"({self.expressions(expression.this)})"
    -557            this = f"{this_name}, {this_properties} {this_schema}"
    -558            properties_sql = ""
    -559        else:
    -560            this = self.sql(expression, "this")
    -561            properties_sql = self.sql(properties_exp, "properties")
    -562        begin = " BEGIN" if expression.args.get("begin") else ""
    -563        expression_sql = self.sql(expression, "expression")
    -564        if expression_sql:
    -565            expression_sql = f"{begin}{self.sep()}{expression_sql}"
    -566
    -567            if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return):
    -568                if properties_locs.get(exp.Properties.Location.POST_ALIAS):
    -569                    postalias_props_sql = self.properties(
    -570                        exp.Properties(
    -571                            expressions=properties_locs[exp.Properties.Location.POST_ALIAS]
    -572                        ),
    -573                        wrapped=False,
    -574                    )
    -575                    expression_sql = f" AS {postalias_props_sql}{expression_sql}"
    -576                else:
    -577                    expression_sql = f" AS{expression_sql}"
    -578
    -579        postindex_props_sql = ""
    -580        if properties_locs.get(exp.Properties.Location.POST_INDEX):
    -581            postindex_props_sql = self.properties(
    -582                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]),
    -583                wrapped=False,
    -584                prefix=" ",
    -585            )
    +            
    541    def create_sql(self, expression: exp.Create) -> str:
    +542        kind = self.sql(expression, "kind").upper()
    +543        properties = expression.args.get("properties")
    +544        properties_exp = expression.copy()
    +545        properties_locs = self.locate_properties(properties) if properties else {}
    +546        if properties_locs.get(exp.Properties.Location.POST_SCHEMA) or properties_locs.get(
    +547            exp.Properties.Location.POST_WITH
    +548        ):
    +549            properties_exp.set(
    +550                "properties",
    +551                exp.Properties(
    +552                    expressions=[
    +553                        *properties_locs[exp.Properties.Location.POST_SCHEMA],
    +554                        *properties_locs[exp.Properties.Location.POST_WITH],
    +555                    ]
    +556                ),
    +557            )
    +558        if kind == "TABLE" and properties_locs.get(exp.Properties.Location.POST_NAME):
    +559            this_name = self.sql(expression.this, "this")
    +560            this_properties = self.properties(
    +561                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_NAME]),
    +562                wrapped=False,
    +563            )
    +564            this_schema = f"({self.expressions(expression.this)})"
    +565            this = f"{this_name}, {this_properties} {this_schema}"
    +566            properties_sql = ""
    +567        else:
    +568            this = self.sql(expression, "this")
    +569            properties_sql = self.sql(properties_exp, "properties")
    +570        begin = " BEGIN" if expression.args.get("begin") else ""
    +571        expression_sql = self.sql(expression, "expression")
    +572        if expression_sql:
    +573            expression_sql = f"{begin}{self.sep()}{expression_sql}"
    +574
    +575            if self.CREATE_FUNCTION_RETURN_AS or not isinstance(expression.expression, exp.Return):
    +576                if properties_locs.get(exp.Properties.Location.POST_ALIAS):
    +577                    postalias_props_sql = self.properties(
    +578                        exp.Properties(
    +579                            expressions=properties_locs[exp.Properties.Location.POST_ALIAS]
    +580                        ),
    +581                        wrapped=False,
    +582                    )
    +583                    expression_sql = f" AS {postalias_props_sql}{expression_sql}"
    +584                else:
    +585                    expression_sql = f" AS{expression_sql}"
     586
    -587        indexes = expression.args.get("indexes")
    -588        if indexes:
    -589            indexes_sql: t.List[str] = []
    -590            for index in indexes:
    -591                ind_unique = " UNIQUE" if index.args.get("unique") else ""
    -592                ind_primary = " PRIMARY" if index.args.get("primary") else ""
    -593                ind_amp = " AMP" if index.args.get("amp") else ""
    -594                ind_name = f" {index.name}" if index.name else ""
    -595                ind_columns = (
    -596                    f' ({self.expressions(index, key="columns", flat=True)})'
    -597                    if index.args.get("columns")
    -598                    else ""
    -599                )
    -600                ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}"
    -601
    -602                if indexes_sql:
    -603                    indexes_sql.append(ind_sql)
    -604                else:
    -605                    indexes_sql.append(
    -606                        f"{ind_sql}{postindex_props_sql}"
    -607                        if index.args.get("primary")
    -608                        else f"{postindex_props_sql}{ind_sql}"
    -609                    )
    -610
    -611            index_sql = "".join(indexes_sql)
    -612        else:
    -613            index_sql = postindex_props_sql
    -614
    -615        replace = " OR REPLACE" if expression.args.get("replace") else ""
    -616        unique = " UNIQUE" if expression.args.get("unique") else ""
    -617        volatile = " VOLATILE" if expression.args.get("volatile") else ""
    +587        postindex_props_sql = ""
    +588        if properties_locs.get(exp.Properties.Location.POST_INDEX):
    +589            postindex_props_sql = self.properties(
    +590                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_INDEX]),
    +591                wrapped=False,
    +592                prefix=" ",
    +593            )
    +594
    +595        indexes = expression.args.get("indexes")
    +596        if indexes:
    +597            indexes_sql: t.List[str] = []
    +598            for index in indexes:
    +599                ind_unique = " UNIQUE" if index.args.get("unique") else ""
    +600                ind_primary = " PRIMARY" if index.args.get("primary") else ""
    +601                ind_amp = " AMP" if index.args.get("amp") else ""
    +602                ind_name = f" {index.name}" if index.name else ""
    +603                ind_columns = (
    +604                    f' ({self.expressions(index, key="columns", flat=True)})'
    +605                    if index.args.get("columns")
    +606                    else ""
    +607                )
    +608                ind_sql = f"{ind_unique}{ind_primary}{ind_amp} INDEX{ind_name}{ind_columns}"
    +609
    +610                if indexes_sql:
    +611                    indexes_sql.append(ind_sql)
    +612                else:
    +613                    indexes_sql.append(
    +614                        f"{ind_sql}{postindex_props_sql}"
    +615                        if index.args.get("primary")
    +616                        else f"{postindex_props_sql}{ind_sql}"
    +617                    )
     618
    -619        postcreate_props_sql = ""
    -620        if properties_locs.get(exp.Properties.Location.POST_CREATE):
    -621            postcreate_props_sql = self.properties(
    -622                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]),
    -623                sep=" ",
    -624                prefix=" ",
    -625                wrapped=False,
    -626            )
    -627
    -628        modifiers = "".join((replace, unique, volatile, postcreate_props_sql))
    -629
    -630        postexpression_props_sql = ""
    -631        if properties_locs.get(exp.Properties.Location.POST_EXPRESSION):
    -632            postexpression_props_sql = self.properties(
    -633                exp.Properties(
    -634                    expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION]
    -635                ),
    -636                sep=" ",
    -637                prefix=" ",
    -638                wrapped=False,
    -639            )
    -640
    -641        exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else ""
    -642        no_schema_binding = (
    -643            " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else ""
    -644        )
    -645
    -646        expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}"
    -647        return self.prepend_ctes(expression, expression_sql)
    +619            index_sql = "".join(indexes_sql)
    +620        else:
    +621            index_sql = postindex_props_sql
    +622
    +623        replace = " OR REPLACE" if expression.args.get("replace") else ""
    +624        unique = " UNIQUE" if expression.args.get("unique") else ""
    +625        volatile = " VOLATILE" if expression.args.get("volatile") else ""
    +626
    +627        postcreate_props_sql = ""
    +628        if properties_locs.get(exp.Properties.Location.POST_CREATE):
    +629            postcreate_props_sql = self.properties(
    +630                exp.Properties(expressions=properties_locs[exp.Properties.Location.POST_CREATE]),
    +631                sep=" ",
    +632                prefix=" ",
    +633                wrapped=False,
    +634            )
    +635
    +636        modifiers = "".join((replace, unique, volatile, postcreate_props_sql))
    +637
    +638        postexpression_props_sql = ""
    +639        if properties_locs.get(exp.Properties.Location.POST_EXPRESSION):
    +640            postexpression_props_sql = self.properties(
    +641                exp.Properties(
    +642                    expressions=properties_locs[exp.Properties.Location.POST_EXPRESSION]
    +643                ),
    +644                sep=" ",
    +645                prefix=" ",
    +646                wrapped=False,
    +647            )
    +648
    +649        exists_sql = " IF NOT EXISTS" if expression.args.get("exists") else ""
    +650        no_schema_binding = (
    +651            " WITH NO SCHEMA BINDING" if expression.args.get("no_schema_binding") else ""
    +652        )
    +653
    +654        expression_sql = f"CREATE{modifiers} {kind}{exists_sql} {this}{properties_sql}{expression_sql}{postexpression_props_sql}{index_sql}{no_schema_binding}"
    +655        return self.prepend_ctes(expression, expression_sql)
     
    @@ -5724,8 +5800,8 @@ Default: True
    -
    649    def describe_sql(self, expression: exp.Describe) -> str:
    -650        return f"DESCRIBE {self.sql(expression, 'this')}"
    +            
    657    def describe_sql(self, expression: exp.Describe) -> str:
    +658        return f"DESCRIBE {self.sql(expression, 'this')}"
     
    @@ -5743,11 +5819,11 @@ Default: True
    -
    652    def prepend_ctes(self, expression: exp.Expression, sql: str) -> str:
    -653        with_ = self.sql(expression, "with")
    -654        if with_:
    -655            sql = f"{with_}{self.sep()}{sql}"
    -656        return sql
    +            
    660    def prepend_ctes(self, expression: exp.Expression, sql: str) -> str:
    +661        with_ = self.sql(expression, "with")
    +662        if with_:
    +663            sql = f"{with_}{self.sep()}{sql}"
    +664        return sql
     
    @@ -5765,11 +5841,11 @@ Default: True
    -
    658    def with_sql(self, expression: exp.With) -> str:
    -659        sql = self.expressions(expression, flat=True)
    -660        recursive = "RECURSIVE " if expression.args.get("recursive") else ""
    -661
    -662        return f"WITH {recursive}{sql}"
    +            
    666    def with_sql(self, expression: exp.With) -> str:
    +667        sql = self.expressions(expression, flat=True)
    +668        recursive = "RECURSIVE " if expression.args.get("recursive") else ""
    +669
    +670        return f"WITH {recursive}{sql}"
     
    @@ -5787,9 +5863,9 @@ Default: True
    -
    664    def cte_sql(self, expression: exp.CTE) -> str:
    -665        alias = self.sql(expression, "alias")
    -666        return f"{alias} AS {self.wrap(expression)}"
    +            
    672    def cte_sql(self, expression: exp.CTE) -> str:
    +673        alias = self.sql(expression, "alias")
    +674        return f"{alias} AS {self.wrap(expression)}"
     
    @@ -5807,11 +5883,11 @@ Default: True
    -
    668    def tablealias_sql(self, expression: exp.TableAlias) -> str:
    -669        alias = self.sql(expression, "this")
    -670        columns = self.expressions(expression, key="columns", flat=True)
    -671        columns = f"({columns})" if columns else ""
    -672        return f"{alias}{columns}"
    +            
    676    def tablealias_sql(self, expression: exp.TableAlias) -> str:
    +677        alias = self.sql(expression, "this")
    +678        columns = self.expressions(expression, key="columns", flat=True)
    +679        columns = f"({columns})" if columns else ""
    +680        return f"{alias}{columns}"
     
    @@ -5829,8 +5905,8 @@ Default: True
    -
    674    def bitstring_sql(self, expression: exp.BitString) -> str:
    -675        return self.sql(expression, "this")
    +            
    682    def bitstring_sql(self, expression: exp.BitString) -> str:
    +683        return self.sql(expression, "this")
     
    @@ -5848,8 +5924,8 @@ Default: True
    -
    677    def hexstring_sql(self, expression: exp.HexString) -> str:
    -678        return self.sql(expression, "this")
    +            
    685    def hexstring_sql(self, expression: exp.HexString) -> str:
    +686        return self.sql(expression, "this")
     
    @@ -5867,24 +5943,24 @@ Default: True
    -
    680    def datatype_sql(self, expression: exp.DataType) -> str:
    -681        type_value = expression.this
    -682        type_sql = self.TYPE_MAPPING.get(type_value, type_value.value)
    -683        nested = ""
    -684        interior = self.expressions(expression, flat=True)
    -685        values = ""
    -686        if interior:
    -687            if expression.args.get("nested"):
    -688                nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}"
    -689                if expression.args.get("values") is not None:
    -690                    delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")")
    -691                    values = (
    -692                        f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}"
    -693                    )
    -694            else:
    -695                nested = f"({interior})"
    -696
    -697        return f"{type_sql}{nested}{values}"
    +            
    688    def datatype_sql(self, expression: exp.DataType) -> str:
    +689        type_value = expression.this
    +690        type_sql = self.TYPE_MAPPING.get(type_value, type_value.value)
    +691        nested = ""
    +692        interior = self.expressions(expression, flat=True)
    +693        values = ""
    +694        if interior:
    +695            if expression.args.get("nested"):
    +696                nested = f"{self.STRUCT_DELIMITER[0]}{interior}{self.STRUCT_DELIMITER[1]}"
    +697                if expression.args.get("values") is not None:
    +698                    delimiters = ("[", "]") if type_value == exp.DataType.Type.ARRAY else ("(", ")")
    +699                    values = (
    +700                        f"{delimiters[0]}{self.expressions(expression, 'values')}{delimiters[1]}"
    +701                    )
    +702            else:
    +703                nested = f"({interior})"
    +704
    +705        return f"{type_sql}{nested}{values}"
     
    @@ -5902,11 +5978,11 @@ Default: True
    -
    699    def directory_sql(self, expression: exp.Directory) -> str:
    -700        local = "LOCAL " if expression.args.get("local") else ""
    -701        row_format = self.sql(expression, "row_format")
    -702        row_format = f" {row_format}" if row_format else ""
    -703        return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}"
    +            
    707    def directory_sql(self, expression: exp.Directory) -> str:
    +708        local = "LOCAL " if expression.args.get("local") else ""
    +709        row_format = self.sql(expression, "row_format")
    +710        row_format = f" {row_format}" if row_format else ""
    +711        return f"{local}DIRECTORY {self.sql(expression, 'this')}{row_format}"
     
    @@ -5924,18 +6000,18 @@ Default: True
    -
    705    def delete_sql(self, expression: exp.Delete) -> str:
    -706        this = self.sql(expression, "this")
    -707        this = f" FROM {this}" if this else ""
    -708        using_sql = (
    -709            f" USING {self.expressions(expression, 'using', sep=', USING ')}"
    -710            if expression.args.get("using")
    -711            else ""
    -712        )
    -713        where_sql = self.sql(expression, "where")
    -714        returning = self.sql(expression, "returning")
    -715        sql = f"DELETE{this}{using_sql}{where_sql}{returning}"
    -716        return self.prepend_ctes(expression, sql)
    +            
    713    def delete_sql(self, expression: exp.Delete) -> str:
    +714        this = self.sql(expression, "this")
    +715        this = f" FROM {this}" if this else ""
    +716        using_sql = (
    +717            f" USING {self.expressions(expression, 'using', sep=', USING ')}"
    +718            if expression.args.get("using")
    +719            else ""
    +720        )
    +721        where_sql = self.sql(expression, "where")
    +722        returning = self.sql(expression, "returning")
    +723        sql = f"DELETE{this}{using_sql}{where_sql}{returning}"
    +724        return self.prepend_ctes(expression, sql)
     
    @@ -5953,14 +6029,15 @@ Default: True
    -
    718    def drop_sql(self, expression: exp.Drop) -> str:
    -719        this = self.sql(expression, "this")
    -720        kind = expression.args["kind"]
    -721        exists_sql = " IF EXISTS " if expression.args.get("exists") else " "
    -722        temporary = " TEMPORARY" if expression.args.get("temporary") else ""
    -723        materialized = " MATERIALIZED" if expression.args.get("materialized") else ""
    -724        cascade = " CASCADE" if expression.args.get("cascade") else ""
    -725        return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}"
    +            
    726    def drop_sql(self, expression: exp.Drop) -> str:
    +727        this = self.sql(expression, "this")
    +728        kind = expression.args["kind"]
    +729        exists_sql = " IF EXISTS " if expression.args.get("exists") else " "
    +730        temporary = " TEMPORARY" if expression.args.get("temporary") else ""
    +731        materialized = " MATERIALIZED" if expression.args.get("materialized") else ""
    +732        cascade = " CASCADE" if expression.args.get("cascade") else ""
    +733        constraints = " CONSTRAINTS" if expression.args.get("constraints") else ""
    +734        return f"DROP{temporary}{materialized} {kind}{exists_sql}{this}{cascade}{constraints}"
     
    @@ -5978,11 +6055,11 @@ Default: True
    -
    727    def except_sql(self, expression: exp.Except) -> str:
    -728        return self.prepend_ctes(
    -729            expression,
    -730            self.set_operation(expression, self.except_op(expression)),
    -731        )
    +            
    736    def except_sql(self, expression: exp.Except) -> str:
    +737        return self.prepend_ctes(
    +738            expression,
    +739            self.set_operation(expression, self.except_op(expression)),
    +740        )
     
    @@ -6000,8 +6077,8 @@ Default: True
    -
    733    def except_op(self, expression: exp.Except) -> str:
    -734        return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}"
    +            
    742    def except_op(self, expression: exp.Except) -> str:
    +743        return f"EXCEPT{'' if expression.args.get('distinct') else ' ALL'}"
     
    @@ -6019,12 +6096,12 @@ Default: True
    -
    736    def fetch_sql(self, expression: exp.Fetch) -> str:
    -737        direction = expression.args.get("direction")
    -738        direction = f" {direction.upper()}" if direction else ""
    -739        count = expression.args.get("count")
    -740        count = f" {count}" if count else ""
    -741        return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY"
    +            
    745    def fetch_sql(self, expression: exp.Fetch) -> str:
    +746        direction = expression.args.get("direction")
    +747        direction = f" {direction.upper()}" if direction else ""
    +748        count = expression.args.get("count")
    +749        count = f" {count}" if count else ""
    +750        return f"{self.seg('FETCH')}{direction}{count} ROWS ONLY"
     
    @@ -6042,10 +6119,10 @@ Default: True
    -
    743    def filter_sql(self, expression: exp.Filter) -> str:
    -744        this = self.sql(expression, "this")
    -745        where = self.sql(expression, "expression")[1:]  # where has a leading space
    -746        return f"{this} FILTER({where})"
    +            
    752    def filter_sql(self, expression: exp.Filter) -> str:
    +753        this = self.sql(expression, "this")
    +754        where = self.sql(expression, "expression")[1:]  # where has a leading space
    +755        return f"{this} FILTER({where})"
     
    @@ -6063,10 +6140,10 @@ Default: True
    -
    748    def hint_sql(self, expression: exp.Hint) -> str:
    -749        if self.sql(expression, "this"):
    -750            self.unsupported("Hints are not supported")
    -751        return ""
    +            
    757    def hint_sql(self, expression: exp.Hint) -> str:
    +758        if self.sql(expression, "this"):
    +759            self.unsupported("Hints are not supported")
    +760        return ""
     
    @@ -6084,11 +6161,11 @@ Default: True
    -
    753    def index_sql(self, expression: exp.Index) -> str:
    -754        this = self.sql(expression, "this")
    -755        table = self.sql(expression, "table")
    -756        columns = self.sql(expression, "columns")
    -757        return f"{this} ON {table} {columns}"
    +            
    762    def index_sql(self, expression: exp.Index) -> str:
    +763        this = self.sql(expression, "this")
    +764        table = self.sql(expression, "table")
    +765        columns = self.sql(expression, "columns")
    +766        return f"{this} ON {table} {columns}"
     
    @@ -6106,13 +6183,13 @@ Default: True
    -
    759    def identifier_sql(self, expression: exp.Identifier) -> str:
    -760        text = expression.name
    -761        text = text.lower() if self.normalize and not expression.quoted else text
    -762        text = text.replace(self.identifier_end, self._escaped_identifier_end)
    -763        if expression.quoted or should_identify(text, self.identify):
    -764            text = f"{self.identifier_start}{text}{self.identifier_end}"
    -765        return text
    +            
    768    def identifier_sql(self, expression: exp.Identifier) -> str:
    +769        text = expression.name
    +770        text = text.lower() if self.normalize and not expression.quoted else text
    +771        text = text.replace(self.identifier_end, self._escaped_identifier_end)
    +772        if expression.quoted or should_identify(text, self.identify):
    +773            text = f"{self.identifier_start}{text}{self.identifier_end}"
    +774        return text
     
    @@ -6130,8 +6207,8 @@ Default: True
    -
    767    def national_sql(self, expression: exp.National) -> str:
    -768        return f"N{self.sql(expression, 'this')}"
    +            
    776    def national_sql(self, expression: exp.National) -> str:
    +777        return f"N{self.sql(expression, 'this')}"
     
    @@ -6149,8 +6226,8 @@ Default: True
    -
    770    def partition_sql(self, expression: exp.Partition) -> str:
    -771        return f"PARTITION({self.expressions(expression)})"
    +            
    779    def partition_sql(self, expression: exp.Partition) -> str:
    +780        return f"PARTITION({self.expressions(expression)})"
     
    @@ -6168,20 +6245,20 @@ Default: True
    -
    773    def properties_sql(self, expression: exp.Properties) -> str:
    -774        root_properties = []
    -775        with_properties = []
    -776
    -777        for p in expression.expressions:
    -778            p_loc = self.PROPERTIES_LOCATION[p.__class__]
    -779            if p_loc == exp.Properties.Location.POST_WITH:
    -780                with_properties.append(p)
    -781            elif p_loc == exp.Properties.Location.POST_SCHEMA:
    -782                root_properties.append(p)
    -783
    -784        return self.root_properties(
    -785            exp.Properties(expressions=root_properties)
    -786        ) + self.with_properties(exp.Properties(expressions=with_properties))
    +            
    782    def properties_sql(self, expression: exp.Properties) -> str:
    +783        root_properties = []
    +784        with_properties = []
    +785
    +786        for p in expression.expressions:
    +787            p_loc = self.PROPERTIES_LOCATION[p.__class__]
    +788            if p_loc == exp.Properties.Location.POST_WITH:
    +789                with_properties.append(p)
    +790            elif p_loc == exp.Properties.Location.POST_SCHEMA:
    +791                root_properties.append(p)
    +792
    +793        return self.root_properties(
    +794            exp.Properties(expressions=root_properties)
    +795        ) + self.with_properties(exp.Properties(expressions=with_properties))
     
    @@ -6199,10 +6276,10 @@ Default: True
    -
    788    def root_properties(self, properties: exp.Properties) -> str:
    -789        if properties.expressions:
    -790            return self.sep() + self.expressions(properties, indent=False, sep=" ")
    -791        return ""
    +            
    797    def root_properties(self, properties: exp.Properties) -> str:
    +798        if properties.expressions:
    +799            return self.sep() + self.expressions(properties, indent=False, sep=" ")
    +800        return ""
     
    @@ -6220,19 +6297,19 @@ Default: True
    -
    793    def properties(
    -794        self,
    -795        properties: exp.Properties,
    -796        prefix: str = "",
    -797        sep: str = ", ",
    -798        suffix: str = "",
    -799        wrapped: bool = True,
    -800    ) -> str:
    -801        if properties.expressions:
    -802            expressions = self.expressions(properties, sep=sep, indent=False)
    -803            expressions = self.wrap(expressions) if wrapped else expressions
    -804            return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}"
    -805        return ""
    +            
    802    def properties(
    +803        self,
    +804        properties: exp.Properties,
    +805        prefix: str = "",
    +806        sep: str = ", ",
    +807        suffix: str = "",
    +808        wrapped: bool = True,
    +809    ) -> str:
    +810        if properties.expressions:
    +811            expressions = self.expressions(properties, sep=sep, indent=False)
    +812            expressions = self.wrap(expressions) if wrapped else expressions
    +813            return f"{prefix}{' ' if prefix and prefix != ' ' else ''}{expressions}{suffix}"
    +814        return ""
     
    @@ -6250,8 +6327,8 @@ Default: True
    -
    807    def with_properties(self, properties: exp.Properties) -> str:
    -808        return self.properties(properties, prefix=self.seg("WITH"))
    +            
    816    def with_properties(self, properties: exp.Properties) -> str:
    +817        return self.properties(properties, prefix=self.seg("WITH"))
     
    @@ -6269,33 +6346,33 @@ Default: True
    -
    810    def locate_properties(
    -811        self, properties: exp.Properties
    -812    ) -> t.Dict[exp.Properties.Location, list[exp.Property]]:
    -813        properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = {
    -814            key: [] for key in exp.Properties.Location
    -815        }
    -816
    -817        for p in properties.expressions:
    -818            p_loc = self.PROPERTIES_LOCATION[p.__class__]
    -819            if p_loc == exp.Properties.Location.POST_NAME:
    -820                properties_locs[exp.Properties.Location.POST_NAME].append(p)
    -821            elif p_loc == exp.Properties.Location.POST_INDEX:
    -822                properties_locs[exp.Properties.Location.POST_INDEX].append(p)
    -823            elif p_loc == exp.Properties.Location.POST_SCHEMA:
    -824                properties_locs[exp.Properties.Location.POST_SCHEMA].append(p)
    -825            elif p_loc == exp.Properties.Location.POST_WITH:
    -826                properties_locs[exp.Properties.Location.POST_WITH].append(p)
    -827            elif p_loc == exp.Properties.Location.POST_CREATE:
    -828                properties_locs[exp.Properties.Location.POST_CREATE].append(p)
    -829            elif p_loc == exp.Properties.Location.POST_ALIAS:
    -830                properties_locs[exp.Properties.Location.POST_ALIAS].append(p)
    -831            elif p_loc == exp.Properties.Location.POST_EXPRESSION:
    -832                properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p)
    -833            elif p_loc == exp.Properties.Location.UNSUPPORTED:
    -834                self.unsupported(f"Unsupported property {p.key}")
    -835
    -836        return properties_locs
    +            
    819    def locate_properties(
    +820        self, properties: exp.Properties
    +821    ) -> t.Dict[exp.Properties.Location, list[exp.Property]]:
    +822        properties_locs: t.Dict[exp.Properties.Location, list[exp.Property]] = {
    +823            key: [] for key in exp.Properties.Location
    +824        }
    +825
    +826        for p in properties.expressions:
    +827            p_loc = self.PROPERTIES_LOCATION[p.__class__]
    +828            if p_loc == exp.Properties.Location.POST_NAME:
    +829                properties_locs[exp.Properties.Location.POST_NAME].append(p)
    +830            elif p_loc == exp.Properties.Location.POST_INDEX:
    +831                properties_locs[exp.Properties.Location.POST_INDEX].append(p)
    +832            elif p_loc == exp.Properties.Location.POST_SCHEMA:
    +833                properties_locs[exp.Properties.Location.POST_SCHEMA].append(p)
    +834            elif p_loc == exp.Properties.Location.POST_WITH:
    +835                properties_locs[exp.Properties.Location.POST_WITH].append(p)
    +836            elif p_loc == exp.Properties.Location.POST_CREATE:
    +837                properties_locs[exp.Properties.Location.POST_CREATE].append(p)
    +838            elif p_loc == exp.Properties.Location.POST_ALIAS:
    +839                properties_locs[exp.Properties.Location.POST_ALIAS].append(p)
    +840            elif p_loc == exp.Properties.Location.POST_EXPRESSION:
    +841                properties_locs[exp.Properties.Location.POST_EXPRESSION].append(p)
    +842            elif p_loc == exp.Properties.Location.UNSUPPORTED:
    +843                self.unsupported(f"Unsupported property {p.key}")
    +844
    +845        return properties_locs
     
    @@ -6313,16 +6390,16 @@ Default: True
    -
    838    def property_sql(self, expression: exp.Property) -> str:
    -839        property_cls = expression.__class__
    -840        if property_cls == exp.Property:
    -841            return f"{expression.name}={self.sql(expression, 'value')}"
    -842
    -843        property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls)
    -844        if not property_name:
    -845            self.unsupported(f"Unsupported property {expression.key}")
    -846
    -847        return f"{property_name}={self.sql(expression, 'this')}"
    +            
    847    def property_sql(self, expression: exp.Property) -> str:
    +848        property_cls = expression.__class__
    +849        if property_cls == exp.Property:
    +850            return f"{expression.name}={self.sql(expression, 'value')}"
    +851
    +852        property_name = exp.Properties.PROPERTY_TO_NAME.get(property_cls)
    +853        if not property_name:
    +854            self.unsupported(f"Unsupported property {expression.key}")
    +855
    +856        return f"{property_name}={self.sql(expression, 'this')}"
     
    @@ -6340,10 +6417,10 @@ Default: True
    -
    849    def likeproperty_sql(self, expression: exp.LikeProperty) -> str:
    -850        options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions)
    -851        options = f" {options}" if options else ""
    -852        return f"LIKE {self.sql(expression, 'this')}{options}"
    +            
    858    def likeproperty_sql(self, expression: exp.LikeProperty) -> str:
    +859        options = " ".join(f"{e.name} {self.sql(e, 'value')}" for e in expression.expressions)
    +860        options = f" {options}" if options else ""
    +861        return f"LIKE {self.sql(expression, 'this')}{options}"
     
    @@ -6361,10 +6438,10 @@ Default: True
    -
    854    def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str:
    -855        no = "NO " if expression.args.get("no") else ""
    -856        protection = " PROTECTION" if expression.args.get("protection") else ""
    -857        return f"{no}FALLBACK{protection}"
    +            
    863    def fallbackproperty_sql(self, expression: exp.FallbackProperty) -> str:
    +864        no = "NO " if expression.args.get("no") else ""
    +865        protection = " PROTECTION" if expression.args.get("protection") else ""
    +866        return f"{no}FALLBACK{protection}"
     
    @@ -6382,11 +6459,11 @@ Default: True
    -
    859    def journalproperty_sql(self, expression: exp.JournalProperty) -> str:
    -860        no = "NO " if expression.args.get("no") else ""
    -861        dual = "DUAL " if expression.args.get("dual") else ""
    -862        before = "BEFORE " if expression.args.get("before") else ""
    -863        return f"{no}{dual}{before}JOURNAL"
    +            
    868    def journalproperty_sql(self, expression: exp.JournalProperty) -> str:
    +869        no = "NO " if expression.args.get("no") else ""
    +870        dual = "DUAL " if expression.args.get("dual") else ""
    +871        before = "BEFORE " if expression.args.get("before") else ""
    +872        return f"{no}{dual}{before}JOURNAL"
     
    @@ -6404,10 +6481,10 @@ Default: True
    -
    865    def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str:
    -866        freespace = self.sql(expression, "this")
    -867        percent = " PERCENT" if expression.args.get("percent") else ""
    -868        return f"FREESPACE={freespace}{percent}"
    +            
    874    def freespaceproperty_sql(self, expression: exp.FreespaceProperty) -> str:
    +875        freespace = self.sql(expression, "this")
    +876        percent = " PERCENT" if expression.args.get("percent") else ""
    +877        return f"FREESPACE={freespace}{percent}"
     
    @@ -6425,13 +6502,13 @@ Default: True
    -
    870    def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str:
    -871        no = "NO " if expression.args.get("no") else ""
    -872        dual = "DUAL " if expression.args.get("dual") else ""
    -873        local = ""
    -874        if expression.args.get("local") is not None:
    -875            local = "LOCAL " if expression.args.get("local") else "NOT LOCAL "
    -876        return f"{no}{dual}{local}AFTER JOURNAL"
    +            
    879    def afterjournalproperty_sql(self, expression: exp.AfterJournalProperty) -> str:
    +880        no = "NO " if expression.args.get("no") else ""
    +881        dual = "DUAL " if expression.args.get("dual") else ""
    +882        local = ""
    +883        if expression.args.get("local") is not None:
    +884            local = "LOCAL " if expression.args.get("local") else "NOT LOCAL "
    +885        return f"{no}{dual}{local}AFTER JOURNAL"
     
    @@ -6449,14 +6526,14 @@ Default: True
    -
    878    def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str:
    -879        if expression.args.get("default"):
    -880            property = "DEFAULT"
    -881        elif expression.args.get("on"):
    -882            property = "ON"
    -883        else:
    -884            property = "OFF"
    -885        return f"CHECKSUM={property}"
    +            
    887    def checksumproperty_sql(self, expression: exp.ChecksumProperty) -> str:
    +888        if expression.args.get("default"):
    +889            property = "DEFAULT"
    +890        elif expression.args.get("on"):
    +891            property = "ON"
    +892        else:
    +893            property = "OFF"
    +894        return f"CHECKSUM={property}"
     
    @@ -6474,14 +6551,14 @@ Default: True
    -
    887    def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str:
    -888        if expression.args.get("no"):
    -889            return "NO MERGEBLOCKRATIO"
    -890        if expression.args.get("default"):
    -891            return "DEFAULT MERGEBLOCKRATIO"
    -892
    -893        percent = " PERCENT" if expression.args.get("percent") else ""
    -894        return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}"
    +            
    896    def mergeblockratioproperty_sql(self, expression: exp.MergeBlockRatioProperty) -> str:
    +897        if expression.args.get("no"):
    +898            return "NO MERGEBLOCKRATIO"
    +899        if expression.args.get("default"):
    +900            return "DEFAULT MERGEBLOCKRATIO"
    +901
    +902        percent = " PERCENT" if expression.args.get("percent") else ""
    +903        return f"MERGEBLOCKRATIO={self.sql(expression, 'this')}{percent}"
     
    @@ -6499,21 +6576,21 @@ Default: True
    -
    896    def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str:
    -897        default = expression.args.get("default")
    -898        min = expression.args.get("min")
    -899        if default is not None or min is not None:
    -900            if default:
    -901                property = "DEFAULT"
    -902            elif min:
    -903                property = "MINIMUM"
    -904            else:
    -905                property = "MAXIMUM"
    -906            return f"{property} DATABLOCKSIZE"
    -907        else:
    -908            units = expression.args.get("units")
    -909            units = f" {units}" if units else ""
    -910            return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}"
    +            
    905    def datablocksizeproperty_sql(self, expression: exp.DataBlocksizeProperty) -> str:
    +906        default = expression.args.get("default")
    +907        min = expression.args.get("min")
    +908        if default is not None or min is not None:
    +909            if default:
    +910                property = "DEFAULT"
    +911            elif min:
    +912                property = "MINIMUM"
    +913            else:
    +914                property = "MAXIMUM"
    +915            return f"{property} DATABLOCKSIZE"
    +916        else:
    +917            units = expression.args.get("units")
    +918            units = f" {units}" if units else ""
    +919            return f"DATABLOCKSIZE={self.sql(expression, 'size')}{units}"
     
    @@ -6531,24 +6608,24 @@ Default: True
    -
    912    def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str:
    -913        autotemp = expression.args.get("autotemp")
    -914        always = expression.args.get("always")
    -915        default = expression.args.get("default")
    -916        manual = expression.args.get("manual")
    -917        never = expression.args.get("never")
    -918
    -919        if autotemp is not None:
    -920            property = f"AUTOTEMP({self.expressions(autotemp)})"
    -921        elif always:
    -922            property = "ALWAYS"
    -923        elif default:
    -924            property = "DEFAULT"
    -925        elif manual:
    -926            property = "MANUAL"
    -927        elif never:
    -928            property = "NEVER"
    -929        return f"BLOCKCOMPRESSION={property}"
    +            
    921    def blockcompressionproperty_sql(self, expression: exp.BlockCompressionProperty) -> str:
    +922        autotemp = expression.args.get("autotemp")
    +923        always = expression.args.get("always")
    +924        default = expression.args.get("default")
    +925        manual = expression.args.get("manual")
    +926        never = expression.args.get("never")
    +927
    +928        if autotemp is not None:
    +929            property = f"AUTOTEMP({self.expressions(autotemp)})"
    +930        elif always:
    +931            property = "ALWAYS"
    +932        elif default:
    +933            property = "DEFAULT"
    +934        elif manual:
    +935            property = "MANUAL"
    +936        elif never:
    +937            property = "NEVER"
    +938        return f"BLOCKCOMPRESSION={property}"
     
    @@ -6566,20 +6643,20 @@ Default: True
    -
    931    def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str:
    -932        no = expression.args.get("no")
    -933        no = " NO" if no else ""
    -934        concurrent = expression.args.get("concurrent")
    -935        concurrent = " CONCURRENT" if concurrent else ""
    -936
    -937        for_ = ""
    -938        if expression.args.get("for_all"):
    -939            for_ = " FOR ALL"
    -940        elif expression.args.get("for_insert"):
    -941            for_ = " FOR INSERT"
    -942        elif expression.args.get("for_none"):
    -943            for_ = " FOR NONE"
    -944        return f"WITH{no}{concurrent} ISOLATED LOADING{for_}"
    +            
    940    def isolatedloadingproperty_sql(self, expression: exp.IsolatedLoadingProperty) -> str:
    +941        no = expression.args.get("no")
    +942        no = " NO" if no else ""
    +943        concurrent = expression.args.get("concurrent")
    +944        concurrent = " CONCURRENT" if concurrent else ""
    +945
    +946        for_ = ""
    +947        if expression.args.get("for_all"):
    +948            for_ = " FOR ALL"
    +949        elif expression.args.get("for_insert"):
    +950            for_ = " FOR INSERT"
    +951        elif expression.args.get("for_none"):
    +952            for_ = " FOR NONE"
    +953        return f"WITH{no}{concurrent} ISOLATED LOADING{for_}"
     
    @@ -6597,13 +6674,13 @@ Default: True
    -
    946    def lockingproperty_sql(self, expression: exp.LockingProperty) -> str:
    -947        kind = expression.args.get("kind")
    -948        this: str = f" {this}" if expression.this else ""
    -949        for_or_in = expression.args.get("for_or_in")
    -950        lock_type = expression.args.get("lock_type")
    -951        override = " OVERRIDE" if expression.args.get("override") else ""
    -952        return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}"
    +            
    955    def lockingproperty_sql(self, expression: exp.LockingProperty) -> str:
    +956        kind = expression.args.get("kind")
    +957        this: str = f" {this}" if expression.this else ""
    +958        for_or_in = expression.args.get("for_or_in")
    +959        lock_type = expression.args.get("lock_type")
    +960        override = " OVERRIDE" if expression.args.get("override") else ""
    +961        return f"LOCKING {kind}{this} {for_or_in} {lock_type}{override}"
     
    @@ -6621,13 +6698,13 @@ Default: True
    -
    954    def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str:
    -955        data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA"
    -956        statistics = expression.args.get("statistics")
    -957        statistics_sql = ""
    -958        if statistics is not None:
    -959            statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS"
    -960        return f"{data_sql}{statistics_sql}"
    +            
    963    def withdataproperty_sql(self, expression: exp.WithDataProperty) -> str:
    +964        data_sql = f"WITH {'NO ' if expression.args.get('no') else ''}DATA"
    +965        statistics = expression.args.get("statistics")
    +966        statistics_sql = ""
    +967        if statistics is not None:
    +968            statistics_sql = f" AND {'NO ' if not statistics else ''}STATISTICS"
    +969        return f"{data_sql}{statistics_sql}"
     
    @@ -6645,27 +6722,27 @@ Default: True
    -
    962    def insert_sql(self, expression: exp.Insert) -> str:
    -963        overwrite = expression.args.get("overwrite")
    -964
    -965        if isinstance(expression.this, exp.Directory):
    -966            this = "OVERWRITE " if overwrite else "INTO "
    -967        else:
    -968            this = "OVERWRITE TABLE " if overwrite else "INTO "
    -969
    -970        alternative = expression.args.get("alternative")
    -971        alternative = f" OR {alternative} " if alternative else " "
    -972        this = f"{this}{self.sql(expression, 'this')}"
    +            
    971    def insert_sql(self, expression: exp.Insert) -> str:
    +972        overwrite = expression.args.get("overwrite")
     973
    -974        exists = " IF EXISTS " if expression.args.get("exists") else " "
    -975        partition_sql = (
    -976            self.sql(expression, "partition") if expression.args.get("partition") else ""
    -977        )
    -978        expression_sql = self.sql(expression, "expression")
    -979        returning = self.sql(expression, "returning")
    -980        sep = self.sep() if partition_sql else ""
    -981        sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}"
    -982        return self.prepend_ctes(expression, sql)
    +974        if isinstance(expression.this, exp.Directory):
    +975            this = "OVERWRITE " if overwrite else "INTO "
    +976        else:
    +977            this = "OVERWRITE TABLE " if overwrite else "INTO "
    +978
    +979        alternative = expression.args.get("alternative")
    +980        alternative = f" OR {alternative} " if alternative else " "
    +981        this = f"{this}{self.sql(expression, 'this')}"
    +982
    +983        exists = " IF EXISTS " if expression.args.get("exists") else " "
    +984        partition_sql = (
    +985            self.sql(expression, "partition") if expression.args.get("partition") else ""
    +986        )
    +987        expression_sql = self.sql(expression, "expression")
    +988        returning = self.sql(expression, "returning")
    +989        sep = self.sep() if partition_sql else ""
    +990        sql = f"INSERT{alternative}{this}{exists}{partition_sql}{sep}{expression_sql}{returning}"
    +991        return self.prepend_ctes(expression, sql)
     
    @@ -6683,11 +6760,11 @@ Default: True
    -
    984    def intersect_sql(self, expression: exp.Intersect) -> str:
    -985        return self.prepend_ctes(
    -986            expression,
    -987            self.set_operation(expression, self.intersect_op(expression)),
    -988        )
    +            
    993    def intersect_sql(self, expression: exp.Intersect) -> str:
    +994        return self.prepend_ctes(
    +995            expression,
    +996            self.set_operation(expression, self.intersect_op(expression)),
    +997        )
     
    @@ -6705,8 +6782,8 @@ Default: True
    -
    990    def intersect_op(self, expression: exp.Intersect) -> str:
    -991        return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}"
    +            
     999    def intersect_op(self, expression: exp.Intersect) -> str:
    +1000        return f"INTERSECT{'' if expression.args.get('distinct') else ' ALL'}"
     
    @@ -6724,8 +6801,8 @@ Default: True
    -
    993    def introducer_sql(self, expression: exp.Introducer) -> str:
    -994        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
    +            
    1002    def introducer_sql(self, expression: exp.Introducer) -> str:
    +1003        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
     
    @@ -6743,8 +6820,8 @@ Default: True
    -
    996    def pseudotype_sql(self, expression: exp.PseudoType) -> str:
    -997        return expression.name.upper()
    +            
    1005    def pseudotype_sql(self, expression: exp.PseudoType) -> str:
    +1006        return expression.name.upper()
     
    @@ -6762,8 +6839,8 @@ Default: True
    -
     999    def returning_sql(self, expression: exp.Returning) -> str:
    -1000        return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}"
    +            
    1008    def returning_sql(self, expression: exp.Returning) -> str:
    +1009        return f"{self.seg('RETURNING')} {self.expressions(expression, flat=True)}"
     
    @@ -6781,20 +6858,20 @@ Default: True
    -
    1002    def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str:
    -1003        fields = expression.args.get("fields")
    -1004        fields = f" FIELDS TERMINATED BY {fields}" if fields else ""
    -1005        escaped = expression.args.get("escaped")
    -1006        escaped = f" ESCAPED BY {escaped}" if escaped else ""
    -1007        items = expression.args.get("collection_items")
    -1008        items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else ""
    -1009        keys = expression.args.get("map_keys")
    -1010        keys = f" MAP KEYS TERMINATED BY {keys}" if keys else ""
    -1011        lines = expression.args.get("lines")
    -1012        lines = f" LINES TERMINATED BY {lines}" if lines else ""
    -1013        null = expression.args.get("null")
    -1014        null = f" NULL DEFINED AS {null}" if null else ""
    -1015        return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}"
    +            
    1011    def rowformatdelimitedproperty_sql(self, expression: exp.RowFormatDelimitedProperty) -> str:
    +1012        fields = expression.args.get("fields")
    +1013        fields = f" FIELDS TERMINATED BY {fields}" if fields else ""
    +1014        escaped = expression.args.get("escaped")
    +1015        escaped = f" ESCAPED BY {escaped}" if escaped else ""
    +1016        items = expression.args.get("collection_items")
    +1017        items = f" COLLECTION ITEMS TERMINATED BY {items}" if items else ""
    +1018        keys = expression.args.get("map_keys")
    +1019        keys = f" MAP KEYS TERMINATED BY {keys}" if keys else ""
    +1020        lines = expression.args.get("lines")
    +1021        lines = f" LINES TERMINATED BY {lines}" if lines else ""
    +1022        null = expression.args.get("null")
    +1023        null = f" NULL DEFINED AS {null}" if null else ""
    +1024        return f"ROW FORMAT DELIMITED{fields}{escaped}{items}{keys}{lines}{null}"
     
    @@ -6812,28 +6889,28 @@ Default: True
    -
    1017    def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str:
    -1018        table = ".".join(
    -1019            part
    -1020            for part in [
    -1021                self.sql(expression, "catalog"),
    -1022                self.sql(expression, "db"),
    -1023                self.sql(expression, "this"),
    -1024            ]
    -1025            if part
    -1026        )
    -1027
    -1028        alias = self.sql(expression, "alias")
    -1029        alias = f"{sep}{alias}" if alias else ""
    -1030        hints = self.expressions(expression, key="hints", sep=", ", flat=True)
    -1031        hints = f" WITH ({hints})" if hints else ""
    -1032        laterals = self.expressions(expression, key="laterals", sep="")
    -1033        joins = self.expressions(expression, key="joins", sep="")
    -1034        pivots = self.expressions(expression, key="pivots", sep="")
    -1035        system_time = expression.args.get("system_time")
    -1036        system_time = f" {self.sql(expression, 'system_time')}" if system_time else ""
    -1037
    -1038        return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}"
    +            
    1026    def table_sql(self, expression: exp.Table, sep: str = " AS ") -> str:
    +1027        table = ".".join(
    +1028            part
    +1029            for part in [
    +1030                self.sql(expression, "catalog"),
    +1031                self.sql(expression, "db"),
    +1032                self.sql(expression, "this"),
    +1033            ]
    +1034            if part
    +1035        )
    +1036
    +1037        alias = self.sql(expression, "alias")
    +1038        alias = f"{sep}{alias}" if alias else ""
    +1039        hints = self.expressions(expression, key="hints", sep=", ", flat=True)
    +1040        hints = f" WITH ({hints})" if hints else ""
    +1041        laterals = self.expressions(expression, key="laterals", sep="")
    +1042        joins = self.expressions(expression, key="joins", sep="")
    +1043        pivots = self.expressions(expression, key="pivots", sep="")
    +1044        system_time = expression.args.get("system_time")
    +1045        system_time = f" {self.sql(expression, 'system_time')}" if system_time else ""
    +1046
    +1047        return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}"
     
    @@ -6851,29 +6928,29 @@ Default: True
    -
    1040    def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    -1041        if self.alias_post_tablesample and expression.this.alias:
    -1042            this = self.sql(expression.this, "this")
    -1043            alias = f" AS {self.sql(expression.this, 'alias')}"
    -1044        else:
    -1045            this = self.sql(expression, "this")
    -1046            alias = ""
    -1047        method = self.sql(expression, "method")
    -1048        method = f"{method.upper()} " if method else ""
    -1049        numerator = self.sql(expression, "bucket_numerator")
    -1050        denominator = self.sql(expression, "bucket_denominator")
    -1051        field = self.sql(expression, "bucket_field")
    -1052        field = f" ON {field}" if field else ""
    -1053        bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else ""
    -1054        percent = self.sql(expression, "percent")
    -1055        percent = f"{percent} PERCENT" if percent else ""
    -1056        rows = self.sql(expression, "rows")
    -1057        rows = f"{rows} ROWS" if rows else ""
    -1058        size = self.sql(expression, "size")
    -1059        seed = self.sql(expression, "seed")
    -1060        seed = f" {seed_prefix} ({seed})" if seed else ""
    -1061        kind = expression.args.get("kind", "TABLESAMPLE")
    -1062        return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}"
    +            
    1049    def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    +1050        if self.alias_post_tablesample and expression.this.alias:
    +1051            this = self.sql(expression.this, "this")
    +1052            alias = f" AS {self.sql(expression.this, 'alias')}"
    +1053        else:
    +1054            this = self.sql(expression, "this")
    +1055            alias = ""
    +1056        method = self.sql(expression, "method")
    +1057        method = f"{method.upper()} " if method else ""
    +1058        numerator = self.sql(expression, "bucket_numerator")
    +1059        denominator = self.sql(expression, "bucket_denominator")
    +1060        field = self.sql(expression, "bucket_field")
    +1061        field = f" ON {field}" if field else ""
    +1062        bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else ""
    +1063        percent = self.sql(expression, "percent")
    +1064        percent = f"{percent} PERCENT" if percent else ""
    +1065        rows = self.sql(expression, "rows")
    +1066        rows = f"{rows} ROWS" if rows else ""
    +1067        size = self.sql(expression, "size")
    +1068        seed = self.sql(expression, "seed")
    +1069        seed = f" {seed_prefix} ({seed})" if seed else ""
    +1070        kind = expression.args.get("kind", "TABLESAMPLE")
    +1071        return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}"
     
    @@ -6891,15 +6968,15 @@ Default: True
    -
    1064    def pivot_sql(self, expression: exp.Pivot) -> str:
    -1065        this = self.sql(expression, "this")
    -1066        alias = self.sql(expression, "alias")
    -1067        alias = f" AS {alias}" if alias else ""
    -1068        unpivot = expression.args.get("unpivot")
    -1069        direction = "UNPIVOT" if unpivot else "PIVOT"
    -1070        expressions = self.expressions(expression, key="expressions")
    -1071        field = self.sql(expression, "field")
    -1072        return f"{this} {direction}({expressions} FOR {field}){alias}"
    +            
    1073    def pivot_sql(self, expression: exp.Pivot) -> str:
    +1074        this = self.sql(expression, "this")
    +1075        alias = self.sql(expression, "alias")
    +1076        alias = f" AS {alias}" if alias else ""
    +1077        unpivot = expression.args.get("unpivot")
    +1078        direction = "UNPIVOT" if unpivot else "PIVOT"
    +1079        expressions = self.expressions(expression, key="expressions")
    +1080        field = self.sql(expression, "field")
    +1081        return f"{this} {direction}({expressions} FOR {field}){alias}"
     
    @@ -6917,8 +6994,8 @@ Default: True
    -
    1074    def tuple_sql(self, expression: exp.Tuple) -> str:
    -1075        return f"({self.expressions(expression, flat=True)})"
    +            
    1083    def tuple_sql(self, expression: exp.Tuple) -> str:
    +1084        return f"({self.expressions(expression, flat=True)})"
     
    @@ -6936,14 +7013,14 @@ Default: True
    -
    1077    def update_sql(self, expression: exp.Update) -> str:
    -1078        this = self.sql(expression, "this")
    -1079        set_sql = self.expressions(expression, flat=True)
    -1080        from_sql = self.sql(expression, "from")
    -1081        where_sql = self.sql(expression, "where")
    -1082        returning = self.sql(expression, "returning")
    -1083        sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}"
    -1084        return self.prepend_ctes(expression, sql)
    +            
    1086    def update_sql(self, expression: exp.Update) -> str:
    +1087        this = self.sql(expression, "this")
    +1088        set_sql = self.expressions(expression, flat=True)
    +1089        from_sql = self.sql(expression, "from")
    +1090        where_sql = self.sql(expression, "where")
    +1091        returning = self.sql(expression, "returning")
    +1092        sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}"
    +1093        return self.prepend_ctes(expression, sql)
     
    @@ -6961,16 +7038,16 @@ Default: True
    -
    1086    def values_sql(self, expression: exp.Values) -> str:
    -1087        args = self.expressions(expression)
    -1088        alias = self.sql(expression, "alias")
    -1089        values = f"VALUES{self.seg('')}{args}"
    -1090        values = (
    -1091            f"({values})"
    -1092            if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From))
    -1093            else values
    -1094        )
    -1095        return f"{values} AS {alias}" if alias else values
    +            
    1095    def values_sql(self, expression: exp.Values) -> str:
    +1096        args = self.expressions(expression)
    +1097        alias = self.sql(expression, "alias")
    +1098        values = f"VALUES{self.seg('')}{args}"
    +1099        values = (
    +1100            f"({values})"
    +1101            if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From))
    +1102            else values
    +1103        )
    +1104        return f"{values} AS {alias}" if alias else values
     
    @@ -6988,8 +7065,8 @@ Default: True
    -
    1097    def var_sql(self, expression: exp.Var) -> str:
    -1098        return self.sql(expression, "this")
    +            
    1106    def var_sql(self, expression: exp.Var) -> str:
    +1107        return self.sql(expression, "this")
     
    @@ -7007,10 +7084,10 @@ Default: True
    -
    1100    def into_sql(self, expression: exp.Into) -> str:
    -1101        temporary = " TEMPORARY" if expression.args.get("temporary") else ""
    -1102        unlogged = " UNLOGGED" if expression.args.get("unlogged") else ""
    -1103        return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}"
    +            
    1109    def into_sql(self, expression: exp.Into) -> str:
    +1110        temporary = " TEMPORARY" if expression.args.get("temporary") else ""
    +1111        unlogged = " UNLOGGED" if expression.args.get("unlogged") else ""
    +1112        return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}"
     
    @@ -7028,9 +7105,9 @@ Default: True
    -
    1105    def from_sql(self, expression: exp.From) -> str:
    -1106        expressions = self.expressions(expression, flat=True)
    -1107        return f"{self.seg('FROM')} {expressions}"
    +            
    1114    def from_sql(self, expression: exp.From) -> str:
    +1115        expressions = self.expressions(expression, flat=True)
    +1116        return f"{self.seg('FROM')} {expressions}"
     
    @@ -7048,33 +7125,33 @@ Default: True
    -
    1109    def group_sql(self, expression: exp.Group) -> str:
    -1110        group_by = self.op_expressions("GROUP BY", expression)
    -1111        grouping_sets = self.expressions(expression, key="grouping_sets", indent=False)
    -1112        grouping_sets = (
    -1113            f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else ""
    -1114        )
    -1115
    -1116        cube = expression.args.get("cube", [])
    -1117        if seq_get(cube, 0) is True:
    -1118            return f"{group_by}{self.seg('WITH CUBE')}"
    -1119        else:
    -1120            cube_sql = self.expressions(expression, key="cube", indent=False)
    -1121            cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else ""
    -1122
    -1123        rollup = expression.args.get("rollup", [])
    -1124        if seq_get(rollup, 0) is True:
    -1125            return f"{group_by}{self.seg('WITH ROLLUP')}"
    -1126        else:
    -1127            rollup_sql = self.expressions(expression, key="rollup", indent=False)
    -1128            rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else ""
    -1129
    -1130        groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",")
    +            
    1118    def group_sql(self, expression: exp.Group) -> str:
    +1119        group_by = self.op_expressions("GROUP BY", expression)
    +1120        grouping_sets = self.expressions(expression, key="grouping_sets", indent=False)
    +1121        grouping_sets = (
    +1122            f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else ""
    +1123        )
    +1124
    +1125        cube = expression.args.get("cube", [])
    +1126        if seq_get(cube, 0) is True:
    +1127            return f"{group_by}{self.seg('WITH CUBE')}"
    +1128        else:
    +1129            cube_sql = self.expressions(expression, key="cube", indent=False)
    +1130            cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else ""
     1131
    -1132        if expression.args.get("expressions") and groupings:
    -1133            group_by = f"{group_by},"
    -1134
    -1135        return f"{group_by}{groupings}"
    +1132        rollup = expression.args.get("rollup", [])
    +1133        if seq_get(rollup, 0) is True:
    +1134            return f"{group_by}{self.seg('WITH ROLLUP')}"
    +1135        else:
    +1136            rollup_sql = self.expressions(expression, key="rollup", indent=False)
    +1137            rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else ""
    +1138
    +1139        groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",")
    +1140
    +1141        if expression.args.get("expressions") and groupings:
    +1142            group_by = f"{group_by},"
    +1143
    +1144        return f"{group_by}{groupings}"
     
    @@ -7092,9 +7169,9 @@ Default: True
    -
    1137    def having_sql(self, expression: exp.Having) -> str:
    -1138        this = self.indent(self.sql(expression, "this"))
    -1139        return f"{self.seg('HAVING')}{self.sep()}{this}"
    +            
    1146    def having_sql(self, expression: exp.Having) -> str:
    +1147        this = self.indent(self.sql(expression, "this"))
    +1148        return f"{self.seg('HAVING')}{self.sep()}{this}"
     
    @@ -7112,36 +7189,36 @@ Default: True
    -
    1141    def join_sql(self, expression: exp.Join) -> str:
    -1142        op_sql = self.seg(
    -1143            " ".join(
    -1144                op
    -1145                for op in (
    -1146                    "NATURAL" if expression.args.get("natural") else None,
    -1147                    expression.side,
    -1148                    expression.kind,
    -1149                    "JOIN",
    -1150                )
    -1151                if op
    -1152            )
    -1153        )
    -1154        on_sql = self.sql(expression, "on")
    -1155        using = expression.args.get("using")
    -1156
    -1157        if not on_sql and using:
    -1158            on_sql = csv(*(self.sql(column) for column in using))
    -1159
    -1160        if on_sql:
    -1161            on_sql = self.indent(on_sql, skip_first=True)
    -1162            space = self.seg(" " * self.pad) if self.pretty else " "
    -1163            if using:
    -1164                on_sql = f"{space}USING ({on_sql})"
    -1165            else:
    -1166                on_sql = f"{space}ON {on_sql}"
    -1167
    -1168        expression_sql = self.sql(expression, "expression")
    -1169        this_sql = self.sql(expression, "this")
    -1170        return f"{expression_sql}{op_sql} {this_sql}{on_sql}"
    +            
    1150    def join_sql(self, expression: exp.Join) -> str:
    +1151        op_sql = self.seg(
    +1152            " ".join(
    +1153                op
    +1154                for op in (
    +1155                    "NATURAL" if expression.args.get("natural") else None,
    +1156                    expression.side,
    +1157                    expression.kind,
    +1158                    "JOIN",
    +1159                )
    +1160                if op
    +1161            )
    +1162        )
    +1163        on_sql = self.sql(expression, "on")
    +1164        using = expression.args.get("using")
    +1165
    +1166        if not on_sql and using:
    +1167            on_sql = csv(*(self.sql(column) for column in using))
    +1168
    +1169        if on_sql:
    +1170            on_sql = self.indent(on_sql, skip_first=True)
    +1171            space = self.seg(" " * self.pad) if self.pretty else " "
    +1172            if using:
    +1173                on_sql = f"{space}USING ({on_sql})"
    +1174            else:
    +1175                on_sql = f"{space}ON {on_sql}"
    +1176
    +1177        expression_sql = self.sql(expression, "expression")
    +1178        this_sql = self.sql(expression, "this")
    +1179        return f"{expression_sql}{op_sql} {this_sql}{on_sql}"
     
    @@ -7159,10 +7236,10 @@ Default: True
    -
    1172    def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str:
    -1173        args = self.expressions(expression, flat=True)
    -1174        args = f"({args})" if len(args.split(",")) > 1 else args
    -1175        return f"{args} {arrow_sep} {self.sql(expression, 'this')}"
    +            
    1181    def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str:
    +1182        args = self.expressions(expression, flat=True)
    +1183        args = f"({args})" if len(args.split(",")) > 1 else args
    +1184        return f"{args} {arrow_sep} {self.sql(expression, 'this')}"
     
    @@ -7180,23 +7257,23 @@ Default: True
    -
    1177    def lateral_sql(self, expression: exp.Lateral) -> str:
    -1178        this = self.sql(expression, "this")
    -1179
    -1180        if isinstance(expression.this, exp.Subquery):
    -1181            return f"LATERAL {this}"
    -1182
    -1183        if expression.args.get("view"):
    -1184            alias = expression.args["alias"]
    -1185            columns = self.expressions(alias, key="columns", flat=True)
    -1186            table = f" {alias.name}" if alias.name else ""
    -1187            columns = f" AS {columns}" if columns else ""
    -1188            op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}")
    -1189            return f"{op_sql}{self.sep()}{this}{table}{columns}"
    -1190
    -1191        alias = self.sql(expression, "alias")
    -1192        alias = f" AS {alias}" if alias else ""
    -1193        return f"LATERAL {this}{alias}"
    +            
    1186    def lateral_sql(self, expression: exp.Lateral) -> str:
    +1187        this = self.sql(expression, "this")
    +1188
    +1189        if isinstance(expression.this, exp.Subquery):
    +1190            return f"LATERAL {this}"
    +1191
    +1192        if expression.args.get("view"):
    +1193            alias = expression.args["alias"]
    +1194            columns = self.expressions(alias, key="columns", flat=True)
    +1195            table = f" {alias.name}" if alias.name else ""
    +1196            columns = f" AS {columns}" if columns else ""
    +1197            op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}")
    +1198            return f"{op_sql}{self.sep()}{this}{table}{columns}"
    +1199
    +1200        alias = self.sql(expression, "alias")
    +1201        alias = f" AS {alias}" if alias else ""
    +1202        return f"LATERAL {this}{alias}"
     
    @@ -7214,9 +7291,9 @@ Default: True
    -
    1195    def limit_sql(self, expression: exp.Limit) -> str:
    -1196        this = self.sql(expression, "this")
    -1197        return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}"
    +            
    1204    def limit_sql(self, expression: exp.Limit) -> str:
    +1205        this = self.sql(expression, "this")
    +1206        return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}"
     
    @@ -7234,9 +7311,9 @@ Default: True
    -
    1199    def offset_sql(self, expression: exp.Offset) -> str:
    -1200        this = self.sql(expression, "this")
    -1201        return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}"
    +            
    1208    def offset_sql(self, expression: exp.Offset) -> str:
    +1209        this = self.sql(expression, "this")
    +1210        return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}"
     
    @@ -7254,15 +7331,15 @@ Default: True
    -
    1203    def setitem_sql(self, expression: exp.SetItem) -> str:
    -1204        kind = self.sql(expression, "kind")
    -1205        kind = f"{kind} " if kind else ""
    -1206        this = self.sql(expression, "this")
    -1207        expressions = self.expressions(expression)
    -1208        collate = self.sql(expression, "collate")
    -1209        collate = f" COLLATE {collate}" if collate else ""
    -1210        global_ = "GLOBAL " if expression.args.get("global") else ""
    -1211        return f"{global_}{kind}{this}{expressions}{collate}"
    +            
    1212    def setitem_sql(self, expression: exp.SetItem) -> str:
    +1213        kind = self.sql(expression, "kind")
    +1214        kind = f"{kind} " if kind else ""
    +1215        this = self.sql(expression, "this")
    +1216        expressions = self.expressions(expression)
    +1217        collate = self.sql(expression, "collate")
    +1218        collate = f" COLLATE {collate}" if collate else ""
    +1219        global_ = "GLOBAL " if expression.args.get("global") else ""
    +1220        return f"{global_}{kind}{this}{expressions}{collate}"
     
    @@ -7280,11 +7357,11 @@ Default: True
    -
    1213    def set_sql(self, expression: exp.Set) -> str:
    -1214        expressions = (
    -1215            f" {self.expressions(expression, flat=True)}" if expression.expressions else ""
    -1216        )
    -1217        return f"SET{expressions}"
    +            
    1222    def set_sql(self, expression: exp.Set) -> str:
    +1223        expressions = (
    +1224            f" {self.expressions(expression, flat=True)}" if expression.expressions else ""
    +1225        )
    +1226        return f"SET{expressions}"
     
    @@ -7302,8 +7379,8 @@ Default: True
    -
    1219    def pragma_sql(self, expression: exp.Pragma) -> str:
    -1220        return f"PRAGMA {self.sql(expression, 'this')}"
    +            
    1228    def pragma_sql(self, expression: exp.Pragma) -> str:
    +1229        return f"PRAGMA {self.sql(expression, 'this')}"
     
    @@ -7321,13 +7398,13 @@ Default: True
    -
    1222    def lock_sql(self, expression: exp.Lock) -> str:
    -1223        if self.LOCKING_READS_SUPPORTED:
    -1224            lock_type = "UPDATE" if expression.args["update"] else "SHARE"
    -1225            return self.seg(f"FOR {lock_type}")
    -1226
    -1227        self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported")
    -1228        return ""
    +            
    1231    def lock_sql(self, expression: exp.Lock) -> str:
    +1232        if self.LOCKING_READS_SUPPORTED:
    +1233            lock_type = "UPDATE" if expression.args["update"] else "SHARE"
    +1234            return self.seg(f"FOR {lock_type}")
    +1235
    +1236        self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported")
    +1237        return ""
     
    @@ -7345,14 +7422,14 @@ Default: True
    -
    1230    def literal_sql(self, expression: exp.Literal) -> str:
    -1231        text = expression.this or ""
    -1232        if expression.is_string:
    -1233            text = text.replace(self.quote_end, self._escaped_quote_end)
    -1234            if self.pretty:
    -1235                text = text.replace("\n", self.SENTINEL_LINE_BREAK)
    -1236            text = f"{self.quote_start}{text}{self.quote_end}"
    -1237        return text
    +            
    1239    def literal_sql(self, expression: exp.Literal) -> str:
    +1240        text = expression.this or ""
    +1241        if expression.is_string:
    +1242            text = text.replace(self.quote_end, self._escaped_quote_end)
    +1243            if self.pretty:
    +1244                text = text.replace("\n", self.SENTINEL_LINE_BREAK)
    +1245            text = f"{self.quote_start}{text}{self.quote_end}"
    +1246        return text
     
    @@ -7370,18 +7447,18 @@ Default: True
    -
    1239    def loaddata_sql(self, expression: exp.LoadData) -> str:
    -1240        local = " LOCAL" if expression.args.get("local") else ""
    -1241        inpath = f" INPATH {self.sql(expression, 'inpath')}"
    -1242        overwrite = " OVERWRITE" if expression.args.get("overwrite") else ""
    -1243        this = f" INTO TABLE {self.sql(expression, 'this')}"
    -1244        partition = self.sql(expression, "partition")
    -1245        partition = f" {partition}" if partition else ""
    -1246        input_format = self.sql(expression, "input_format")
    -1247        input_format = f" INPUTFORMAT {input_format}" if input_format else ""
    -1248        serde = self.sql(expression, "serde")
    -1249        serde = f" SERDE {serde}" if serde else ""
    -1250        return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}"
    +            
    1248    def loaddata_sql(self, expression: exp.LoadData) -> str:
    +1249        local = " LOCAL" if expression.args.get("local") else ""
    +1250        inpath = f" INPATH {self.sql(expression, 'inpath')}"
    +1251        overwrite = " OVERWRITE" if expression.args.get("overwrite") else ""
    +1252        this = f" INTO TABLE {self.sql(expression, 'this')}"
    +1253        partition = self.sql(expression, "partition")
    +1254        partition = f" {partition}" if partition else ""
    +1255        input_format = self.sql(expression, "input_format")
    +1256        input_format = f" INPUTFORMAT {input_format}" if input_format else ""
    +1257        serde = self.sql(expression, "serde")
    +1258        serde = f" SERDE {serde}" if serde else ""
    +1259        return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}"
     
    @@ -7399,8 +7476,8 @@ Default: True
    -
    1252    def null_sql(self, *_) -> str:
    -1253        return "NULL"
    +            
    1261    def null_sql(self, *_) -> str:
    +1262        return "NULL"
     
    @@ -7418,8 +7495,8 @@ Default: True
    -
    1255    def boolean_sql(self, expression: exp.Boolean) -> str:
    -1256        return "TRUE" if expression.this else "FALSE"
    +            
    1264    def boolean_sql(self, expression: exp.Boolean) -> str:
    +1265        return "TRUE" if expression.this else "FALSE"
     
    @@ -7437,10 +7514,10 @@ Default: True
    -
    1258    def order_sql(self, expression: exp.Order, flat: bool = False) -> str:
    -1259        this = self.sql(expression, "this")
    -1260        this = f"{this} " if this else this
    -1261        return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat)  # type: ignore
    +            
    1267    def order_sql(self, expression: exp.Order, flat: bool = False) -> str:
    +1268        this = self.sql(expression, "this")
    +1269        this = f"{this} " if this else this
    +1270        return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat)  # type: ignore
     
    @@ -7458,8 +7535,8 @@ Default: True
    -
    1263    def cluster_sql(self, expression: exp.Cluster) -> str:
    -1264        return self.op_expressions("CLUSTER BY", expression)
    +            
    1272    def cluster_sql(self, expression: exp.Cluster) -> str:
    +1273        return self.op_expressions("CLUSTER BY", expression)
     
    @@ -7477,8 +7554,8 @@ Default: True
    -
    1266    def distribute_sql(self, expression: exp.Distribute) -> str:
    -1267        return self.op_expressions("DISTRIBUTE BY", expression)
    +            
    1275    def distribute_sql(self, expression: exp.Distribute) -> str:
    +1276        return self.op_expressions("DISTRIBUTE BY", expression)
     
    @@ -7496,8 +7573,8 @@ Default: True
    -
    1269    def sort_sql(self, expression: exp.Sort) -> str:
    -1270        return self.op_expressions("SORT BY", expression)
    +            
    1278    def sort_sql(self, expression: exp.Sort) -> str:
    +1279        return self.op_expressions("SORT BY", expression)
     
    @@ -7515,36 +7592,36 @@ Default: True
    -
    1272    def ordered_sql(self, expression: exp.Ordered) -> str:
    -1273        desc = expression.args.get("desc")
    -1274        asc = not desc
    -1275
    -1276        nulls_first = expression.args.get("nulls_first")
    -1277        nulls_last = not nulls_first
    -1278        nulls_are_large = self.null_ordering == "nulls_are_large"
    -1279        nulls_are_small = self.null_ordering == "nulls_are_small"
    -1280        nulls_are_last = self.null_ordering == "nulls_are_last"
    -1281
    -1282        sort_order = " DESC" if desc else ""
    -1283        nulls_sort_change = ""
    -1284        if nulls_first and (
    -1285            (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last
    -1286        ):
    -1287            nulls_sort_change = " NULLS FIRST"
    -1288        elif (
    -1289            nulls_last
    -1290            and ((asc and nulls_are_small) or (desc and nulls_are_large))
    -1291            and not nulls_are_last
    -1292        ):
    -1293            nulls_sort_change = " NULLS LAST"
    -1294
    -1295        if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED:
    -1296            self.unsupported(
    -1297                "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect"
    -1298            )
    -1299            nulls_sort_change = ""
    -1300
    -1301        return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}"
    +            
    1281    def ordered_sql(self, expression: exp.Ordered) -> str:
    +1282        desc = expression.args.get("desc")
    +1283        asc = not desc
    +1284
    +1285        nulls_first = expression.args.get("nulls_first")
    +1286        nulls_last = not nulls_first
    +1287        nulls_are_large = self.null_ordering == "nulls_are_large"
    +1288        nulls_are_small = self.null_ordering == "nulls_are_small"
    +1289        nulls_are_last = self.null_ordering == "nulls_are_last"
    +1290
    +1291        sort_order = " DESC" if desc else ""
    +1292        nulls_sort_change = ""
    +1293        if nulls_first and (
    +1294            (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last
    +1295        ):
    +1296            nulls_sort_change = " NULLS FIRST"
    +1297        elif (
    +1298            nulls_last
    +1299            and ((asc and nulls_are_small) or (desc and nulls_are_large))
    +1300            and not nulls_are_last
    +1301        ):
    +1302            nulls_sort_change = " NULLS LAST"
    +1303
    +1304        if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED:
    +1305            self.unsupported(
    +1306                "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect"
    +1307            )
    +1308            nulls_sort_change = ""
    +1309
    +1310        return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}"
     
    @@ -7562,31 +7639,31 @@ Default: True
    -
    1303    def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str:
    -1304        partition = self.partition_by_sql(expression)
    -1305        order = self.sql(expression, "order")
    -1306        measures = self.sql(expression, "measures")
    -1307        measures = self.seg(f"MEASURES {measures}") if measures else ""
    -1308        rows = self.sql(expression, "rows")
    -1309        rows = self.seg(rows) if rows else ""
    -1310        after = self.sql(expression, "after")
    -1311        after = self.seg(after) if after else ""
    -1312        pattern = self.sql(expression, "pattern")
    -1313        pattern = self.seg(f"PATTERN ({pattern})") if pattern else ""
    -1314        define = self.sql(expression, "define")
    -1315        define = self.seg(f"DEFINE {define}") if define else ""
    -1316        body = "".join(
    -1317            (
    -1318                partition,
    -1319                order,
    -1320                measures,
    -1321                rows,
    -1322                after,
    -1323                pattern,
    -1324                define,
    -1325            )
    -1326        )
    -1327        return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}"
    +            
    1312    def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str:
    +1313        partition = self.partition_by_sql(expression)
    +1314        order = self.sql(expression, "order")
    +1315        measures = self.sql(expression, "measures")
    +1316        measures = self.seg(f"MEASURES {measures}") if measures else ""
    +1317        rows = self.sql(expression, "rows")
    +1318        rows = self.seg(rows) if rows else ""
    +1319        after = self.sql(expression, "after")
    +1320        after = self.seg(after) if after else ""
    +1321        pattern = self.sql(expression, "pattern")
    +1322        pattern = self.seg(f"PATTERN ({pattern})") if pattern else ""
    +1323        define = self.sql(expression, "define")
    +1324        define = self.seg(f"DEFINE {define}") if define else ""
    +1325        body = "".join(
    +1326            (
    +1327                partition,
    +1328                order,
    +1329                measures,
    +1330                rows,
    +1331                after,
    +1332                pattern,
    +1333                define,
    +1334            )
    +1335        )
    +1336        return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}"
     
    @@ -7604,38 +7681,38 @@ Default: True
    -
    1329    def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str:
    -1330        limit = expression.args.get("limit")
    -1331
    -1332        if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch):
    -1333            limit = exp.Limit(expression=limit.args.get("count"))
    -1334        elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit):
    -1335            limit = exp.Fetch(direction="FIRST", count=limit.expression)
    -1336
    -1337        fetch = isinstance(limit, exp.Fetch)
    -1338
    -1339        return csv(
    -1340            *sqls,
    -1341            *[self.sql(sql) for sql in expression.args.get("joins") or []],
    -1342            self.sql(expression, "match"),
    -1343            *[self.sql(sql) for sql in expression.args.get("laterals") or []],
    -1344            self.sql(expression, "where"),
    -1345            self.sql(expression, "group"),
    -1346            self.sql(expression, "having"),
    -1347            self.sql(expression, "qualify"),
    -1348            self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True)
    -1349            if expression.args.get("windows")
    -1350            else "",
    -1351            self.sql(expression, "distribute"),
    -1352            self.sql(expression, "sort"),
    -1353            self.sql(expression, "cluster"),
    -1354            self.sql(expression, "order"),
    -1355            self.sql(expression, "offset") if fetch else self.sql(limit),
    -1356            self.sql(limit) if fetch else self.sql(expression, "offset"),
    -1357            self.sql(expression, "lock"),
    -1358            self.sql(expression, "sample"),
    -1359            sep="",
    -1360        )
    +            
    1338    def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str:
    +1339        limit = expression.args.get("limit")
    +1340
    +1341        if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch):
    +1342            limit = exp.Limit(expression=limit.args.get("count"))
    +1343        elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit):
    +1344            limit = exp.Fetch(direction="FIRST", count=limit.expression)
    +1345
    +1346        fetch = isinstance(limit, exp.Fetch)
    +1347
    +1348        return csv(
    +1349            *sqls,
    +1350            *[self.sql(sql) for sql in expression.args.get("joins") or []],
    +1351            self.sql(expression, "match"),
    +1352            *[self.sql(sql) for sql in expression.args.get("laterals") or []],
    +1353            self.sql(expression, "where"),
    +1354            self.sql(expression, "group"),
    +1355            self.sql(expression, "having"),
    +1356            self.sql(expression, "qualify"),
    +1357            self.seg("WINDOW ") + self.expressions(expression, "windows", flat=True)
    +1358            if expression.args.get("windows")
    +1359            else "",
    +1360            self.sql(expression, "distribute"),
    +1361            self.sql(expression, "sort"),
    +1362            self.sql(expression, "cluster"),
    +1363            self.sql(expression, "order"),
    +1364            self.sql(expression, "offset") if fetch else self.sql(limit),
    +1365            self.sql(limit) if fetch else self.sql(expression, "offset"),
    +1366            self.sql(expression, "lock"),
    +1367            self.sql(expression, "sample"),
    +1368            sep="",
    +1369        )
     
    @@ -7653,21 +7730,21 @@ Default: True
    -
    1362    def select_sql(self, expression: exp.Select) -> str:
    -1363        kind = expression.args.get("kind")
    -1364        kind = f" AS {kind}" if kind else ""
    -1365        hint = self.sql(expression, "hint")
    -1366        distinct = self.sql(expression, "distinct")
    -1367        distinct = f" {distinct}" if distinct else ""
    -1368        expressions = self.expressions(expression)
    -1369        expressions = f"{self.sep()}{expressions}" if expressions else expressions
    -1370        sql = self.query_modifiers(
    -1371            expression,
    -1372            f"SELECT{kind}{hint}{distinct}{expressions}",
    -1373            self.sql(expression, "into", comment=False),
    -1374            self.sql(expression, "from", comment=False),
    -1375        )
    -1376        return self.prepend_ctes(expression, sql)
    +            
    1371    def select_sql(self, expression: exp.Select) -> str:
    +1372        kind = expression.args.get("kind")
    +1373        kind = f" AS {kind}" if kind else ""
    +1374        hint = self.sql(expression, "hint")
    +1375        distinct = self.sql(expression, "distinct")
    +1376        distinct = f" {distinct}" if distinct else ""
    +1377        expressions = self.expressions(expression)
    +1378        expressions = f"{self.sep()}{expressions}" if expressions else expressions
    +1379        sql = self.query_modifiers(
    +1380            expression,
    +1381            f"SELECT{kind}{hint}{distinct}{expressions}",
    +1382            self.sql(expression, "into", comment=False),
    +1383            self.sql(expression, "from", comment=False),
    +1384        )
    +1385        return self.prepend_ctes(expression, sql)
     
    @@ -7685,11 +7762,11 @@ Default: True
    -
    1378    def schema_sql(self, expression: exp.Schema) -> str:
    -1379        this = self.sql(expression, "this")
    -1380        this = f"{this} " if this else ""
    -1381        sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}"
    -1382        return f"{this}{sql}"
    +            
    1387    def schema_sql(self, expression: exp.Schema) -> str:
    +1388        this = self.sql(expression, "this")
    +1389        this = f"{this} " if this else ""
    +1390        sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}"
    +1391        return f"{this}{sql}"
     
    @@ -7707,12 +7784,12 @@ Default: True
    -
    1384    def star_sql(self, expression: exp.Star) -> str:
    -1385        except_ = self.expressions(expression, key="except", flat=True)
    -1386        except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else ""
    -1387        replace = self.expressions(expression, key="replace", flat=True)
    -1388        replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else ""
    -1389        return f"*{except_}{replace}"
    +            
    1393    def star_sql(self, expression: exp.Star) -> str:
    +1394        except_ = self.expressions(expression, key="except", flat=True)
    +1395        except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else ""
    +1396        replace = self.expressions(expression, key="replace", flat=True)
    +1397        replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else ""
    +1398        return f"*{except_}{replace}"
     
    @@ -7730,8 +7807,8 @@ Default: True
    -
    1391    def structkwarg_sql(self, expression: exp.StructKwarg) -> str:
    -1392        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
    +            
    1400    def structkwarg_sql(self, expression: exp.StructKwarg) -> str:
    +1401        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
     
    @@ -7749,10 +7826,10 @@ Default: True
    -
    1394    def parameter_sql(self, expression: exp.Parameter) -> str:
    -1395        this = self.sql(expression, "this")
    -1396        this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}"
    -1397        return f"{self.PARAMETER_TOKEN}{this}"
    +            
    1403    def parameter_sql(self, expression: exp.Parameter) -> str:
    +1404        this = self.sql(expression, "this")
    +1405        this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}"
    +1406        return f"{self.PARAMETER_TOKEN}{this}"
     
    @@ -7770,12 +7847,12 @@ Default: True
    -
    1399    def sessionparameter_sql(self, expression: exp.SessionParameter) -> str:
    -1400        this = self.sql(expression, "this")
    -1401        kind = expression.text("kind")
    -1402        if kind:
    -1403            kind = f"{kind}."
    -1404        return f"@@{kind}{this}"
    +            
    1408    def sessionparameter_sql(self, expression: exp.SessionParameter) -> str:
    +1409        this = self.sql(expression, "this")
    +1410        kind = expression.text("kind")
    +1411        if kind:
    +1412            kind = f"{kind}."
    +1413        return f"@@{kind}{this}"
     
    @@ -7793,8 +7870,8 @@ Default: True
    -
    1406    def placeholder_sql(self, expression: exp.Placeholder) -> str:
    -1407        return f":{expression.name}" if expression.name else "?"
    +            
    1415    def placeholder_sql(self, expression: exp.Placeholder) -> str:
    +1416        return f":{expression.name}" if expression.name else "?"
     
    @@ -7812,18 +7889,18 @@ Default: True
    -
    1409    def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str:
    -1410        alias = self.sql(expression, "alias")
    -1411        alias = f"{sep}{alias}" if alias else ""
    -1412
    -1413        sql = self.query_modifiers(
    -1414            expression,
    -1415            self.wrap(expression),
    -1416            alias,
    -1417            self.expressions(expression, key="pivots", sep=" "),
    -1418        )
    -1419
    -1420        return self.prepend_ctes(expression, sql)
    +            
    1418    def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str:
    +1419        alias = self.sql(expression, "alias")
    +1420        alias = f"{sep}{alias}" if alias else ""
    +1421
    +1422        sql = self.query_modifiers(
    +1423            expression,
    +1424            self.wrap(expression),
    +1425            alias,
    +1426            self.expressions(expression, key="pivots", sep=" "),
    +1427        )
    +1428
    +1429        return self.prepend_ctes(expression, sql)
     
    @@ -7841,9 +7918,9 @@ Default: True
    -
    1422    def qualify_sql(self, expression: exp.Qualify) -> str:
    -1423        this = self.indent(self.sql(expression, "this"))
    -1424        return f"{self.seg('QUALIFY')}{self.sep()}{this}"
    +            
    1431    def qualify_sql(self, expression: exp.Qualify) -> str:
    +1432        this = self.indent(self.sql(expression, "this"))
    +1433        return f"{self.seg('QUALIFY')}{self.sep()}{this}"
     
    @@ -7861,11 +7938,11 @@ Default: True
    -
    1426    def union_sql(self, expression: exp.Union) -> str:
    -1427        return self.prepend_ctes(
    -1428            expression,
    -1429            self.set_operation(expression, self.union_op(expression)),
    -1430        )
    +            
    1435    def union_sql(self, expression: exp.Union) -> str:
    +1436        return self.prepend_ctes(
    +1437            expression,
    +1438            self.set_operation(expression, self.union_op(expression)),
    +1439        )
     
    @@ -7883,10 +7960,10 @@ Default: True
    -
    1432    def union_op(self, expression: exp.Union) -> str:
    -1433        kind = " DISTINCT" if self.EXPLICIT_UNION else ""
    -1434        kind = kind if expression.args.get("distinct") else " ALL"
    -1435        return f"UNION{kind}"
    +            
    1441    def union_op(self, expression: exp.Union) -> str:
    +1442        kind = " DISTINCT" if self.EXPLICIT_UNION else ""
    +1443        kind = kind if expression.args.get("distinct") else " ALL"
    +1444        return f"UNION{kind}"
     
    @@ -7904,19 +7981,19 @@ Default: True
    -
    1437    def unnest_sql(self, expression: exp.Unnest) -> str:
    -1438        args = self.expressions(expression, flat=True)
    -1439        alias = expression.args.get("alias")
    -1440        if alias and self.unnest_column_only:
    -1441            columns = alias.columns
    -1442            alias = self.sql(columns[0]) if columns else ""
    -1443        else:
    -1444            alias = self.sql(expression, "alias")
    -1445        alias = f" AS {alias}" if alias else alias
    -1446        ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else ""
    -1447        offset = expression.args.get("offset")
    -1448        offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else ""
    -1449        return f"UNNEST({args}){ordinality}{alias}{offset}"
    +            
    1446    def unnest_sql(self, expression: exp.Unnest) -> str:
    +1447        args = self.expressions(expression, flat=True)
    +1448        alias = expression.args.get("alias")
    +1449        if alias and self.unnest_column_only:
    +1450            columns = alias.columns
    +1451            alias = self.sql(columns[0]) if columns else ""
    +1452        else:
    +1453            alias = self.sql(expression, "alias")
    +1454        alias = f" AS {alias}" if alias else alias
    +1455        ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else ""
    +1456        offset = expression.args.get("offset")
    +1457        offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else ""
    +1458        return f"UNNEST({args}){ordinality}{alias}{offset}"
     
    @@ -7934,9 +8011,9 @@ Default: True
    -
    1451    def where_sql(self, expression: exp.Where) -> str:
    -1452        this = self.indent(self.sql(expression, "this"))
    -1453        return f"{self.seg('WHERE')}{self.sep()}{this}"
    +            
    1460    def where_sql(self, expression: exp.Where) -> str:
    +1461        this = self.indent(self.sql(expression, "this"))
    +1462        return f"{self.seg('WHERE')}{self.sep()}{this}"
     
    @@ -7954,28 +8031,28 @@ Default: True
    -
    1455    def window_sql(self, expression: exp.Window) -> str:
    -1456        this = self.sql(expression, "this")
    -1457
    -1458        partition = self.partition_by_sql(expression)
    -1459
    -1460        order = expression.args.get("order")
    -1461        order_sql = self.order_sql(order, flat=True) if order else ""
    -1462
    -1463        partition_sql = partition + " " if partition and order else partition
    -1464
    -1465        spec = expression.args.get("spec")
    -1466        spec_sql = " " + self.window_spec_sql(spec) if spec else ""
    -1467
    -1468        alias = self.sql(expression, "alias")
    -1469        this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}"
    -1470
    -1471        if not partition and not order and not spec and alias:
    -1472            return f"{this} {alias}"
    +            
    1464    def window_sql(self, expression: exp.Window) -> str:
    +1465        this = self.sql(expression, "this")
    +1466
    +1467        partition = self.partition_by_sql(expression)
    +1468
    +1469        order = expression.args.get("order")
    +1470        order_sql = self.order_sql(order, flat=True) if order else ""
    +1471
    +1472        partition_sql = partition + " " if partition and order else partition
     1473
    -1474        window_args = alias + partition_sql + order_sql + spec_sql
    -1475
    -1476        return f"{this} ({window_args.strip()})"
    +1474        spec = expression.args.get("spec")
    +1475        spec_sql = " " + self.window_spec_sql(spec) if spec else ""
    +1476
    +1477        alias = self.sql(expression, "alias")
    +1478        this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}"
    +1479
    +1480        if not partition and not order and not spec and alias:
    +1481            return f"{this} {alias}"
    +1482
    +1483        window_args = alias + partition_sql + order_sql + spec_sql
    +1484
    +1485        return f"{this} ({window_args.strip()})"
     
    @@ -7993,9 +8070,9 @@ Default: True
    -
    1478    def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str:
    -1479        partition = self.expressions(expression, key="partition_by", flat=True)
    -1480        return f"PARTITION BY {partition}" if partition else ""
    +            
    1487    def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str:
    +1488        partition = self.expressions(expression, key="partition_by", flat=True)
    +1489        return f"PARTITION BY {partition}" if partition else ""
     
    @@ -8013,14 +8090,14 @@ Default: True
    -
    1482    def window_spec_sql(self, expression: exp.WindowSpec) -> str:
    -1483        kind = self.sql(expression, "kind")
    -1484        start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ")
    -1485        end = (
    -1486            csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ")
    -1487            or "CURRENT ROW"
    -1488        )
    -1489        return f"{kind} BETWEEN {start} AND {end}"
    +            
    1491    def window_spec_sql(self, expression: exp.WindowSpec) -> str:
    +1492        kind = self.sql(expression, "kind")
    +1493        start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ")
    +1494        end = (
    +1495            csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ")
    +1496            or "CURRENT ROW"
    +1497        )
    +1498        return f"{kind} BETWEEN {start} AND {end}"
     
    @@ -8038,10 +8115,10 @@ Default: True
    -
    1491    def withingroup_sql(self, expression: exp.WithinGroup) -> str:
    -1492        this = self.sql(expression, "this")
    -1493        expression_sql = self.sql(expression, "expression")[1:]  # order has a leading space
    -1494        return f"{this} WITHIN GROUP ({expression_sql})"
    +            
    1500    def withingroup_sql(self, expression: exp.WithinGroup) -> str:
    +1501        this = self.sql(expression, "this")
    +1502        expression_sql = self.sql(expression, "expression")[1:]  # order has a leading space
    +1503        return f"{this} WITHIN GROUP ({expression_sql})"
     
    @@ -8059,11 +8136,11 @@ Default: True
    -
    1496    def between_sql(self, expression: exp.Between) -> str:
    -1497        this = self.sql(expression, "this")
    -1498        low = self.sql(expression, "low")
    -1499        high = self.sql(expression, "high")
    -1500        return f"{this} BETWEEN {low} AND {high}"
    +            
    1505    def between_sql(self, expression: exp.Between) -> str:
    +1506        this = self.sql(expression, "this")
    +1507        low = self.sql(expression, "low")
    +1508        high = self.sql(expression, "high")
    +1509        return f"{this} BETWEEN {low} AND {high}"
     
    @@ -8081,11 +8158,11 @@ Default: True
    -
    1502    def bracket_sql(self, expression: exp.Bracket) -> str:
    -1503        expressions = apply_index_offset(expression.expressions, self.index_offset)
    -1504        expressions_sql = ", ".join(self.sql(e) for e in expressions)
    -1505
    -1506        return f"{self.sql(expression, 'this')}[{expressions_sql}]"
    +            
    1511    def bracket_sql(self, expression: exp.Bracket) -> str:
    +1512        expressions = apply_index_offset(expression.expressions, self.index_offset)
    +1513        expressions_sql = ", ".join(self.sql(e) for e in expressions)
    +1514
    +1515        return f"{self.sql(expression, 'this')}[{expressions_sql}]"
     
    @@ -8103,8 +8180,8 @@ Default: True
    -
    1508    def all_sql(self, expression: exp.All) -> str:
    -1509        return f"ALL {self.wrap(expression)}"
    +            
    1517    def all_sql(self, expression: exp.All) -> str:
    +1518        return f"ALL {self.wrap(expression)}"
     
    @@ -8122,11 +8199,11 @@ Default: True
    -
    1511    def any_sql(self, expression: exp.Any) -> str:
    -1512        this = self.sql(expression, "this")
    -1513        if isinstance(expression.this, exp.Subqueryable):
    -1514            this = self.wrap(this)
    -1515        return f"ANY {this}"
    +            
    1520    def any_sql(self, expression: exp.Any) -> str:
    +1521        this = self.sql(expression, "this")
    +1522        if isinstance(expression.this, exp.Subqueryable):
    +1523            this = self.wrap(this)
    +1524        return f"ANY {this}"
     
    @@ -8144,8 +8221,8 @@ Default: True
    -
    1517    def exists_sql(self, expression: exp.Exists) -> str:
    -1518        return f"EXISTS{self.wrap(expression)}"
    +            
    1526    def exists_sql(self, expression: exp.Exists) -> str:
    +1527        return f"EXISTS{self.wrap(expression)}"
     
    @@ -8163,25 +8240,25 @@ Default: True
    -
    1520    def case_sql(self, expression: exp.Case) -> str:
    -1521        this = self.sql(expression, "this")
    -1522        statements = [f"CASE {this}" if this else "CASE"]
    -1523
    -1524        for e in expression.args["ifs"]:
    -1525            statements.append(f"WHEN {self.sql(e, 'this')}")
    -1526            statements.append(f"THEN {self.sql(e, 'true')}")
    -1527
    -1528        default = self.sql(expression, "default")
    -1529
    -1530        if default:
    -1531            statements.append(f"ELSE {default}")
    +            
    1529    def case_sql(self, expression: exp.Case) -> str:
    +1530        this = self.sql(expression, "this")
    +1531        statements = [f"CASE {this}" if this else "CASE"]
     1532
    -1533        statements.append("END")
    -1534
    -1535        if self.pretty and self.text_width(statements) > self._max_text_width:
    -1536            return self.indent("\n".join(statements), skip_first=True, skip_last=True)
    -1537
    -1538        return " ".join(statements)
    +1533        for e in expression.args["ifs"]:
    +1534            statements.append(f"WHEN {self.sql(e, 'this')}")
    +1535            statements.append(f"THEN {self.sql(e, 'true')}")
    +1536
    +1537        default = self.sql(expression, "default")
    +1538
    +1539        if default:
    +1540            statements.append(f"ELSE {default}")
    +1541
    +1542        statements.append("END")
    +1543
    +1544        if self.pretty and self.text_width(statements) > self._max_text_width:
    +1545            return self.indent("\n".join(statements), skip_first=True, skip_last=True)
    +1546
    +1547        return " ".join(statements)
     
    @@ -8199,10 +8276,10 @@ Default: True
    -
    1540    def constraint_sql(self, expression: exp.Constraint) -> str:
    -1541        this = self.sql(expression, "this")
    -1542        expressions = self.expressions(expression, flat=True)
    -1543        return f"CONSTRAINT {this} {expressions}"
    +            
    1549    def constraint_sql(self, expression: exp.Constraint) -> str:
    +1550        this = self.sql(expression, "this")
    +1551        expressions = self.expressions(expression, flat=True)
    +1552        return f"CONSTRAINT {this} {expressions}"
     
    @@ -8220,10 +8297,10 @@ Default: True
    -
    1545    def extract_sql(self, expression: exp.Extract) -> str:
    -1546        this = self.sql(expression, "this")
    -1547        expression_sql = self.sql(expression, "expression")
    -1548        return f"EXTRACT({this} FROM {expression_sql})"
    +            
    1554    def extract_sql(self, expression: exp.Extract) -> str:
    +1555        this = self.sql(expression, "this")
    +1556        expression_sql = self.sql(expression, "expression")
    +1557        return f"EXTRACT({this} FROM {expression_sql})"
     
    @@ -8241,15 +8318,15 @@ Default: True
    -
    1550    def trim_sql(self, expression: exp.Trim) -> str:
    -1551        trim_type = self.sql(expression, "position")
    -1552
    -1553        if trim_type == "LEADING":
    -1554            return self.func("LTRIM", expression.this)
    -1555        elif trim_type == "TRAILING":
    -1556            return self.func("RTRIM", expression.this)
    -1557        else:
    -1558            return self.func("TRIM", expression.this, expression.expression)
    +            
    1559    def trim_sql(self, expression: exp.Trim) -> str:
    +1560        trim_type = self.sql(expression, "position")
    +1561
    +1562        if trim_type == "LEADING":
    +1563            return self.func("LTRIM", expression.this)
    +1564        elif trim_type == "TRAILING":
    +1565            return self.func("RTRIM", expression.this)
    +1566        else:
    +1567            return self.func("TRIM", expression.this, expression.expression)
     
    @@ -8267,10 +8344,10 @@ Default: True
    -
    1560    def concat_sql(self, expression: exp.Concat) -> str:
    -1561        if len(expression.expressions) == 1:
    -1562            return self.sql(expression.expressions[0])
    -1563        return self.function_fallback_sql(expression)
    +            
    1569    def concat_sql(self, expression: exp.Concat) -> str:
    +1570        if len(expression.expressions) == 1:
    +1571            return self.sql(expression.expressions[0])
    +1572        return self.function_fallback_sql(expression)
     
    @@ -8288,9 +8365,9 @@ Default: True
    -
    1565    def check_sql(self, expression: exp.Check) -> str:
    -1566        this = self.sql(expression, key="this")
    -1567        return f"CHECK ({this})"
    +            
    1574    def check_sql(self, expression: exp.Check) -> str:
    +1575        this = self.sql(expression, key="this")
    +1576        return f"CHECK ({this})"
     
    @@ -8308,15 +8385,15 @@ Default: True
    -
    1569    def foreignkey_sql(self, expression: exp.ForeignKey) -> str:
    -1570        expressions = self.expressions(expression, flat=True)
    -1571        reference = self.sql(expression, "reference")
    -1572        reference = f" {reference}" if reference else ""
    -1573        delete = self.sql(expression, "delete")
    -1574        delete = f" ON DELETE {delete}" if delete else ""
    -1575        update = self.sql(expression, "update")
    -1576        update = f" ON UPDATE {update}" if update else ""
    -1577        return f"FOREIGN KEY ({expressions}){reference}{delete}{update}"
    +            
    1578    def foreignkey_sql(self, expression: exp.ForeignKey) -> str:
    +1579        expressions = self.expressions(expression, flat=True)
    +1580        reference = self.sql(expression, "reference")
    +1581        reference = f" {reference}" if reference else ""
    +1582        delete = self.sql(expression, "delete")
    +1583        delete = f" ON DELETE {delete}" if delete else ""
    +1584        update = self.sql(expression, "update")
    +1585        update = f" ON UPDATE {update}" if update else ""
    +1586        return f"FOREIGN KEY ({expressions}){reference}{delete}{update}"
     
    @@ -8334,11 +8411,11 @@ Default: True
    -
    1579    def primarykey_sql(self, expression: exp.ForeignKey) -> str:
    -1580        expressions = self.expressions(expression, flat=True)
    -1581        options = self.expressions(expression, "options", flat=True, sep=" ")
    -1582        options = f" {options}" if options else ""
    -1583        return f"PRIMARY KEY ({expressions}){options}"
    +            
    1588    def primarykey_sql(self, expression: exp.ForeignKey) -> str:
    +1589        expressions = self.expressions(expression, flat=True)
    +1590        options = self.expressions(expression, "options", flat=True, sep=" ")
    +1591        options = f" {options}" if options else ""
    +1592        return f"PRIMARY KEY ({expressions}){options}"
     
    @@ -8356,9 +8433,9 @@ Default: True
    -
    1585    def unique_sql(self, expression: exp.Unique) -> str:
    -1586        columns = self.expressions(expression, key="expressions")
    -1587        return f"UNIQUE ({columns})"
    +            
    1594    def unique_sql(self, expression: exp.Unique) -> str:
    +1595        columns = self.expressions(expression, key="expressions")
    +1596        return f"UNIQUE ({columns})"
     
    @@ -8376,10 +8453,31 @@ Default: True
    -
    1589    def if_sql(self, expression: exp.If) -> str:
    -1590        return self.case_sql(
    -1591            exp.Case(ifs=[expression.copy()], default=expression.args.get("false"))
    -1592        )
    +            
    1598    def if_sql(self, expression: exp.If) -> str:
    +1599        return self.case_sql(
    +1600            exp.Case(ifs=[expression.copy()], default=expression.args.get("false"))
    +1601        )
    +
    + + + + +
    +
    + +
    + + def + matchagainst_sql(self, expression: sqlglot.expressions.MatchAgainst) -> str: + + + +
    + +
    1603    def matchagainst_sql(self, expression: exp.MatchAgainst) -> str:
    +1604        modifier = expression.args.get("modifier")
    +1605        modifier = f" {modifier}" if modifier else ""
    +1606        return f"{self.func('MATCH', *expression.expressions)} AGAINST({self.sql(expression, 'this')}{modifier})"
     
    @@ -8397,8 +8495,8 @@ Default: True
    -
    1594    def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str:
    -1595        return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}"
    +            
    1608    def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str:
    +1609        return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}"
     
    @@ -8416,21 +8514,21 @@ Default: True
    -
    1597    def jsonobject_sql(self, expression: exp.JSONObject) -> str:
    -1598        expressions = self.expressions(expression)
    -1599        null_handling = expression.args.get("null_handling")
    -1600        null_handling = f" {null_handling}" if null_handling else ""
    -1601        unique_keys = expression.args.get("unique_keys")
    -1602        if unique_keys is not None:
    -1603            unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS"
    -1604        else:
    -1605            unique_keys = ""
    -1606        return_type = self.sql(expression, "return_type")
    -1607        return_type = f" RETURNING {return_type}" if return_type else ""
    -1608        format_json = " FORMAT JSON" if expression.args.get("format_json") else ""
    -1609        encoding = self.sql(expression, "encoding")
    -1610        encoding = f" ENCODING {encoding}" if encoding else ""
    -1611        return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})"
    +            
    1611    def jsonobject_sql(self, expression: exp.JSONObject) -> str:
    +1612        expressions = self.expressions(expression)
    +1613        null_handling = expression.args.get("null_handling")
    +1614        null_handling = f" {null_handling}" if null_handling else ""
    +1615        unique_keys = expression.args.get("unique_keys")
    +1616        if unique_keys is not None:
    +1617            unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS"
    +1618        else:
    +1619            unique_keys = ""
    +1620        return_type = self.sql(expression, "return_type")
    +1621        return_type = f" RETURNING {return_type}" if return_type else ""
    +1622        format_json = " FORMAT JSON" if expression.args.get("format_json") else ""
    +1623        encoding = self.sql(expression, "encoding")
    +1624        encoding = f" ENCODING {encoding}" if encoding else ""
    +1625        return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})"
     
    @@ -8448,22 +8546,22 @@ Default: True
    -
    1613    def in_sql(self, expression: exp.In) -> str:
    -1614        query = expression.args.get("query")
    -1615        unnest = expression.args.get("unnest")
    -1616        field = expression.args.get("field")
    -1617        is_global = " GLOBAL" if expression.args.get("is_global") else ""
    -1618
    -1619        if query:
    -1620            in_sql = self.wrap(query)
    -1621        elif unnest:
    -1622            in_sql = self.in_unnest_op(unnest)
    -1623        elif field:
    -1624            in_sql = self.sql(field)
    -1625        else:
    -1626            in_sql = f"({self.expressions(expression, flat=True)})"
    -1627
    -1628        return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}"
    +            
    1627    def in_sql(self, expression: exp.In) -> str:
    +1628        query = expression.args.get("query")
    +1629        unnest = expression.args.get("unnest")
    +1630        field = expression.args.get("field")
    +1631        is_global = " GLOBAL" if expression.args.get("is_global") else ""
    +1632
    +1633        if query:
    +1634            in_sql = self.wrap(query)
    +1635        elif unnest:
    +1636            in_sql = self.in_unnest_op(unnest)
    +1637        elif field:
    +1638            in_sql = self.sql(field)
    +1639        else:
    +1640            in_sql = f"({self.expressions(expression, flat=True)})"
    +1641
    +1642        return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}"
     
    @@ -8481,8 +8579,8 @@ Default: True
    -
    1630    def in_unnest_op(self, unnest: exp.Unnest) -> str:
    -1631        return f"(SELECT {self.sql(unnest)})"
    +            
    1644    def in_unnest_op(self, unnest: exp.Unnest) -> str:
    +1645        return f"(SELECT {self.sql(unnest)})"
     
    @@ -8500,19 +8598,19 @@ Default: True
    -
    1633    def interval_sql(self, expression: exp.Interval) -> str:
    -1634        this = expression.args.get("this")
    -1635        if this:
    -1636            this = (
    -1637                f" {this}"
    -1638                if isinstance(this, exp.Literal) or isinstance(this, exp.Paren)
    -1639                else f" ({this})"
    -1640            )
    -1641        else:
    -1642            this = ""
    -1643        unit = self.sql(expression, "unit")
    -1644        unit = f" {unit}" if unit else ""
    -1645        return f"INTERVAL{this}{unit}"
    +            
    1647    def interval_sql(self, expression: exp.Interval) -> str:
    +1648        this = expression.args.get("this")
    +1649        if this:
    +1650            this = (
    +1651                f" {this}"
    +1652                if isinstance(this, exp.Literal) or isinstance(this, exp.Paren)
    +1653                else f" ({this})"
    +1654            )
    +1655        else:
    +1656            this = ""
    +1657        unit = self.sql(expression, "unit")
    +1658        unit = f" {unit}" if unit else ""
    +1659        return f"INTERVAL{this}{unit}"
     
    @@ -8530,8 +8628,8 @@ Default: True
    -
    1647    def return_sql(self, expression: exp.Return) -> str:
    -1648        return f"RETURN {self.sql(expression, 'this')}"
    +            
    1661    def return_sql(self, expression: exp.Return) -> str:
    +1662        return f"RETURN {self.sql(expression, 'this')}"
     
    @@ -8549,13 +8647,13 @@ Default: True
    -
    1650    def reference_sql(self, expression: exp.Reference) -> str:
    -1651        this = self.sql(expression, "this")
    -1652        expressions = self.expressions(expression, flat=True)
    -1653        expressions = f"({expressions})" if expressions else ""
    -1654        options = self.expressions(expression, "options", flat=True, sep=" ")
    -1655        options = f" {options}" if options else ""
    -1656        return f"REFERENCES {this}{expressions}{options}"
    +            
    1664    def reference_sql(self, expression: exp.Reference) -> str:
    +1665        this = self.sql(expression, "this")
    +1666        expressions = self.expressions(expression, flat=True)
    +1667        expressions = f"({expressions})" if expressions else ""
    +1668        options = self.expressions(expression, "options", flat=True, sep=" ")
    +1669        options = f" {options}" if options else ""
    +1670        return f"REFERENCES {this}{expressions}{options}"
     
    @@ -8573,8 +8671,8 @@ Default: True
    -
    1658    def anonymous_sql(self, expression: exp.Anonymous) -> str:
    -1659        return self.func(expression.name, *expression.expressions)
    +            
    1672    def anonymous_sql(self, expression: exp.Anonymous) -> str:
    +1673        return self.func(expression.name, *expression.expressions)
     
    @@ -8592,14 +8690,14 @@ Default: True
    -
    1661    def paren_sql(self, expression: exp.Paren) -> str:
    -1662        if isinstance(expression.unnest(), exp.Select):
    -1663            sql = self.wrap(expression)
    -1664        else:
    -1665            sql = self.seg(self.indent(self.sql(expression, "this")), sep="")
    -1666            sql = f"({sql}{self.seg(')', sep='')}"
    -1667
    -1668        return self.prepend_ctes(expression, sql)
    +            
    1675    def paren_sql(self, expression: exp.Paren) -> str:
    +1676        if isinstance(expression.unnest(), exp.Select):
    +1677            sql = self.wrap(expression)
    +1678        else:
    +1679            sql = self.seg(self.indent(self.sql(expression, "this")), sep="")
    +1680            sql = f"({sql}{self.seg(')', sep='')}"
    +1681
    +1682        return self.prepend_ctes(expression, sql)
     
    @@ -8617,11 +8715,11 @@ Default: True
    -
    1670    def neg_sql(self, expression: exp.Neg) -> str:
    -1671        # This makes sure we don't convert "- - 5" to "--5", which is a comment
    -1672        this_sql = self.sql(expression, "this")
    -1673        sep = " " if this_sql[0] == "-" else ""
    -1674        return f"-{sep}{this_sql}"
    +            
    1684    def neg_sql(self, expression: exp.Neg) -> str:
    +1685        # This makes sure we don't convert "- - 5" to "--5", which is a comment
    +1686        this_sql = self.sql(expression, "this")
    +1687        sep = " " if this_sql[0] == "-" else ""
    +1688        return f"-{sep}{this_sql}"
     
    @@ -8639,8 +8737,8 @@ Default: True
    -
    1676    def not_sql(self, expression: exp.Not) -> str:
    -1677        return f"NOT {self.sql(expression, 'this')}"
    +            
    1690    def not_sql(self, expression: exp.Not) -> str:
    +1691        return f"NOT {self.sql(expression, 'this')}"
     
    @@ -8658,10 +8756,10 @@ Default: True
    -
    1679    def alias_sql(self, expression: exp.Alias) -> str:
    -1680        to_sql = self.sql(expression, "alias")
    -1681        to_sql = f" AS {to_sql}" if to_sql else ""
    -1682        return f"{self.sql(expression, 'this')}{to_sql}"
    +            
    1693    def alias_sql(self, expression: exp.Alias) -> str:
    +1694        to_sql = self.sql(expression, "alias")
    +1695        to_sql = f" AS {to_sql}" if to_sql else ""
    +1696        return f"{self.sql(expression, 'this')}{to_sql}"
     
    @@ -8679,8 +8777,8 @@ Default: True
    -
    1684    def aliases_sql(self, expression: exp.Aliases) -> str:
    -1685        return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})"
    +            
    1698    def aliases_sql(self, expression: exp.Aliases) -> str:
    +1699        return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})"
     
    @@ -8698,10 +8796,10 @@ Default: True
    -
    1687    def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    -1688        this = self.sql(expression, "this")
    -1689        zone = self.sql(expression, "zone")
    -1690        return f"{this} AT TIME ZONE {zone}"
    +            
    1701    def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    +1702        this = self.sql(expression, "this")
    +1703        zone = self.sql(expression, "zone")
    +1704        return f"{this} AT TIME ZONE {zone}"
     
    @@ -8719,8 +8817,8 @@ Default: True
    -
    1692    def add_sql(self, expression: exp.Add) -> str:
    -1693        return self.binary(expression, "+")
    +            
    1706    def add_sql(self, expression: exp.Add) -> str:
    +1707        return self.binary(expression, "+")
     
    @@ -8738,8 +8836,8 @@ Default: True
    -
    1695    def and_sql(self, expression: exp.And) -> str:
    -1696        return self.connector_sql(expression, "AND")
    +            
    1709    def and_sql(self, expression: exp.And) -> str:
    +1710        return self.connector_sql(expression, "AND")
     
    @@ -8757,13 +8855,13 @@ Default: True
    -
    1698    def connector_sql(self, expression: exp.Connector, op: str) -> str:
    -1699        if not self.pretty:
    -1700            return self.binary(expression, op)
    -1701
    -1702        sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False))
    -1703        sep = "\n" if self.text_width(sqls) > self._max_text_width else " "
    -1704        return f"{sep}{op} ".join(sqls)
    +            
    1712    def connector_sql(self, expression: exp.Connector, op: str) -> str:
    +1713        if not self.pretty:
    +1714            return self.binary(expression, op)
    +1715
    +1716        sqls = tuple(self.sql(e) for e in expression.flatten(unnest=False))
    +1717        sep = "\n" if self.text_width(sqls) > self._max_text_width else " "
    +1718        return f"{sep}{op} ".join(sqls)
     
    @@ -8781,8 +8879,8 @@ Default: True
    -
    1706    def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str:
    -1707        return self.binary(expression, "&")
    +            
    1720    def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str:
    +1721        return self.binary(expression, "&")
     
    @@ -8800,8 +8898,8 @@ Default: True
    -
    1709    def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str:
    -1710        return self.binary(expression, "<<")
    +            
    1723    def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str:
    +1724        return self.binary(expression, "<<")
     
    @@ -8819,8 +8917,8 @@ Default: True
    -
    1712    def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str:
    -1713        return f"~{self.sql(expression, 'this')}"
    +            
    1726    def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str:
    +1727        return f"~{self.sql(expression, 'this')}"
     
    @@ -8838,8 +8936,8 @@ Default: True
    -
    1715    def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str:
    -1716        return self.binary(expression, "|")
    +            
    1729    def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str:
    +1730        return self.binary(expression, "|")
     
    @@ -8857,8 +8955,8 @@ Default: True
    -
    1718    def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str:
    -1719        return self.binary(expression, ">>")
    +            
    1732    def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str:
    +1733        return self.binary(expression, ">>")
     
    @@ -8876,8 +8974,8 @@ Default: True
    -
    1721    def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str:
    -1722        return self.binary(expression, "^")
    +            
    1735    def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str:
    +1736        return self.binary(expression, "^")
     
    @@ -8895,8 +8993,8 @@ Default: True
    -
    1724    def cast_sql(self, expression: exp.Cast) -> str:
    -1725        return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
    +            
    1738    def cast_sql(self, expression: exp.Cast) -> str:
    +1739        return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
     
    @@ -8914,9 +9012,9 @@ Default: True
    -
    1727    def currentdate_sql(self, expression: exp.CurrentDate) -> str:
    -1728        zone = self.sql(expression, "this")
    -1729        return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE"
    +            
    1741    def currentdate_sql(self, expression: exp.CurrentDate) -> str:
    +1742        zone = self.sql(expression, "this")
    +1743        return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE"
     
    @@ -8934,8 +9032,8 @@ Default: True
    -
    1731    def collate_sql(self, expression: exp.Collate) -> str:
    -1732        return self.binary(expression, "COLLATE")
    +            
    1745    def collate_sql(self, expression: exp.Collate) -> str:
    +1746        return self.binary(expression, "COLLATE")
     
    @@ -8953,8 +9051,8 @@ Default: True
    -
    1734    def command_sql(self, expression: exp.Command) -> str:
    -1735        return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}"
    +            
    1748    def command_sql(self, expression: exp.Command) -> str:
    +1749        return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}"
     
    @@ -8972,12 +9070,12 @@ Default: True
    -
    1737    def comment_sql(self, expression: exp.Comment) -> str:
    -1738        this = self.sql(expression, "this")
    -1739        kind = expression.args["kind"]
    -1740        exists_sql = " IF EXISTS " if expression.args.get("exists") else " "
    -1741        expression_sql = self.sql(expression, "expression")
    -1742        return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}"
    +            
    1751    def comment_sql(self, expression: exp.Comment) -> str:
    +1752        this = self.sql(expression, "this")
    +1753        kind = expression.args["kind"]
    +1754        exists_sql = " IF EXISTS " if expression.args.get("exists") else " "
    +1755        expression_sql = self.sql(expression, "expression")
    +1756        return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}"
     
    @@ -8995,8 +9093,8 @@ Default: True
    -
    1744    def transaction_sql(self, expression: exp.Transaction) -> str:
    -1745        return "BEGIN"
    +            
    1758    def transaction_sql(self, expression: exp.Transaction) -> str:
    +1759        return "BEGIN"
     
    @@ -9014,12 +9112,12 @@ Default: True
    -
    1747    def commit_sql(self, expression: exp.Commit) -> str:
    -1748        chain = expression.args.get("chain")
    -1749        if chain is not None:
    -1750            chain = " AND CHAIN" if chain else " AND NO CHAIN"
    -1751
    -1752        return f"COMMIT{chain or ''}"
    +            
    1761    def commit_sql(self, expression: exp.Commit) -> str:
    +1762        chain = expression.args.get("chain")
    +1763        if chain is not None:
    +1764            chain = " AND CHAIN" if chain else " AND NO CHAIN"
    +1765
    +1766        return f"COMMIT{chain or ''}"
     
    @@ -9037,10 +9135,10 @@ Default: True
    -
    1754    def rollback_sql(self, expression: exp.Rollback) -> str:
    -1755        savepoint = expression.args.get("savepoint")
    -1756        savepoint = f" TO {savepoint}" if savepoint else ""
    -1757        return f"ROLLBACK{savepoint}"
    +            
    1768    def rollback_sql(self, expression: exp.Rollback) -> str:
    +1769        savepoint = expression.args.get("savepoint")
    +1770        savepoint = f" TO {savepoint}" if savepoint else ""
    +1771        return f"ROLLBACK{savepoint}"
     
    @@ -9058,25 +9156,25 @@ Default: True
    -
    1759    def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    -1760        this = self.sql(expression, "this")
    -1761
    -1762        dtype = self.sql(expression, "dtype")
    -1763        if dtype:
    -1764            collate = self.sql(expression, "collate")
    -1765            collate = f" COLLATE {collate}" if collate else ""
    -1766            using = self.sql(expression, "using")
    -1767            using = f" USING {using}" if using else ""
    -1768            return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}"
    -1769
    -1770        default = self.sql(expression, "default")
    -1771        if default:
    -1772            return f"ALTER COLUMN {this} SET DEFAULT {default}"
    -1773
    -1774        if not expression.args.get("drop"):
    -1775            self.unsupported("Unsupported ALTER COLUMN syntax")
    -1776
    -1777        return f"ALTER COLUMN {this} DROP DEFAULT"
    +            
    1773    def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    +1774        this = self.sql(expression, "this")
    +1775
    +1776        dtype = self.sql(expression, "dtype")
    +1777        if dtype:
    +1778            collate = self.sql(expression, "collate")
    +1779            collate = f" COLLATE {collate}" if collate else ""
    +1780            using = self.sql(expression, "using")
    +1781            using = f" USING {using}" if using else ""
    +1782            return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}"
    +1783
    +1784        default = self.sql(expression, "default")
    +1785        if default:
    +1786            return f"ALTER COLUMN {this} SET DEFAULT {default}"
    +1787
    +1788        if not expression.args.get("drop"):
    +1789            self.unsupported("Unsupported ALTER COLUMN syntax")
    +1790
    +1791        return f"ALTER COLUMN {this} DROP DEFAULT"
     
    @@ -9094,9 +9192,9 @@ Default: True
    -
    1779    def renametable_sql(self, expression: exp.RenameTable) -> str:
    -1780        this = self.sql(expression, "this")
    -1781        return f"RENAME TO {this}"
    +            
    1793    def renametable_sql(self, expression: exp.RenameTable) -> str:
    +1794        this = self.sql(expression, "this")
    +1795        return f"RENAME TO {this}"
     
    @@ -9114,20 +9212,20 @@ Default: True
    -
    1783    def altertable_sql(self, expression: exp.AlterTable) -> str:
    -1784        actions = expression.args["actions"]
    -1785
    -1786        if isinstance(actions[0], exp.ColumnDef):
    -1787            actions = self.expressions(expression, "actions", prefix="ADD COLUMN ")
    -1788        elif isinstance(actions[0], exp.Schema):
    -1789            actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ")
    -1790        elif isinstance(actions[0], exp.Delete):
    -1791            actions = self.expressions(expression, "actions", flat=True)
    -1792        else:
    -1793            actions = self.expressions(expression, "actions")
    -1794
    -1795        exists = " IF EXISTS" if expression.args.get("exists") else ""
    -1796        return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}"
    +            
    1797    def altertable_sql(self, expression: exp.AlterTable) -> str:
    +1798        actions = expression.args["actions"]
    +1799
    +1800        if isinstance(actions[0], exp.ColumnDef):
    +1801            actions = self.expressions(expression, "actions", prefix="ADD COLUMN ")
    +1802        elif isinstance(actions[0], exp.Schema):
    +1803            actions = self.expressions(expression, "actions", prefix="ADD COLUMNS ")
    +1804        elif isinstance(actions[0], exp.Delete):
    +1805            actions = self.expressions(expression, "actions", flat=True)
    +1806        else:
    +1807            actions = self.expressions(expression, "actions")
    +1808
    +1809        exists = " IF EXISTS" if expression.args.get("exists") else ""
    +1810        return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}"
     
    @@ -9145,10 +9243,10 @@ Default: True
    -
    1798    def droppartition_sql(self, expression: exp.DropPartition) -> str:
    -1799        expressions = self.expressions(expression)
    -1800        exists = " IF EXISTS " if expression.args.get("exists") else " "
    -1801        return f"DROP{exists}{expressions}"
    +            
    1812    def droppartition_sql(self, expression: exp.DropPartition) -> str:
    +1813        expressions = self.expressions(expression)
    +1814        exists = " IF EXISTS " if expression.args.get("exists") else " "
    +1815        return f"DROP{exists}{expressions}"
     
    @@ -9166,16 +9264,16 @@ Default: True
    -
    1803    def addconstraint_sql(self, expression: exp.AddConstraint) -> str:
    -1804        this = self.sql(expression, "this")
    -1805        expression_ = self.sql(expression, "expression")
    -1806        add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD"
    -1807
    -1808        enforced = expression.args.get("enforced")
    -1809        if enforced is not None:
    -1810            return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}"
    -1811
    -1812        return f"{add_constraint} {expression_}"
    +            
    1817    def addconstraint_sql(self, expression: exp.AddConstraint) -> str:
    +1818        this = self.sql(expression, "this")
    +1819        expression_ = self.sql(expression, "expression")
    +1820        add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD"
    +1821
    +1822        enforced = expression.args.get("enforced")
    +1823        if enforced is not None:
    +1824            return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}"
    +1825
    +1826        return f"{add_constraint} {expression_}"
     
    @@ -9193,13 +9291,13 @@ Default: True
    -
    1814    def distinct_sql(self, expression: exp.Distinct) -> str:
    -1815        this = self.expressions(expression, flat=True)
    -1816        this = f" {this}" if this else ""
    -1817
    -1818        on = self.sql(expression, "on")
    -1819        on = f" ON {on}" if on else ""
    -1820        return f"DISTINCT{this}{on}"
    +            
    1828    def distinct_sql(self, expression: exp.Distinct) -> str:
    +1829        this = self.expressions(expression, flat=True)
    +1830        this = f" {this}" if this else ""
    +1831
    +1832        on = self.sql(expression, "on")
    +1833        on = f" ON {on}" if on else ""
    +1834        return f"DISTINCT{this}{on}"
     
    @@ -9217,8 +9315,8 @@ Default: True
    -
    1822    def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str:
    -1823        return f"{self.sql(expression, 'this')} IGNORE NULLS"
    +            
    1836    def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str:
    +1837        return f"{self.sql(expression, 'this')} IGNORE NULLS"
     
    @@ -9236,8 +9334,8 @@ Default: True
    -
    1825    def respectnulls_sql(self, expression: exp.RespectNulls) -> str:
    -1826        return f"{self.sql(expression, 'this')} RESPECT NULLS"
    +            
    1839    def respectnulls_sql(self, expression: exp.RespectNulls) -> str:
    +1840        return f"{self.sql(expression, 'this')} RESPECT NULLS"
     
    @@ -9255,13 +9353,13 @@ Default: True
    -
    1828    def intdiv_sql(self, expression: exp.IntDiv) -> str:
    -1829        return self.sql(
    -1830            exp.Cast(
    -1831                this=exp.Div(this=expression.this, expression=expression.expression),
    -1832                to=exp.DataType(this=exp.DataType.Type.INT),
    -1833            )
    -1834        )
    +            
    1842    def intdiv_sql(self, expression: exp.IntDiv) -> str:
    +1843        return self.sql(
    +1844            exp.Cast(
    +1845                this=exp.Div(this=expression.this, expression=expression.expression),
    +1846                to=exp.DataType(this=exp.DataType.Type.INT),
    +1847            )
    +1848        )
     
    @@ -9279,8 +9377,8 @@ Default: True
    -
    1836    def dpipe_sql(self, expression: exp.DPipe) -> str:
    -1837        return self.binary(expression, "||")
    +            
    1850    def dpipe_sql(self, expression: exp.DPipe) -> str:
    +1851        return self.binary(expression, "||")
     
    @@ -9298,8 +9396,8 @@ Default: True
    -
    1839    def div_sql(self, expression: exp.Div) -> str:
    -1840        return self.binary(expression, "/")
    +            
    1853    def div_sql(self, expression: exp.Div) -> str:
    +1854        return self.binary(expression, "/")
     
    @@ -9317,8 +9415,8 @@ Default: True
    -
    1842    def overlaps_sql(self, expression: exp.Overlaps) -> str:
    -1843        return self.binary(expression, "OVERLAPS")
    +            
    1856    def overlaps_sql(self, expression: exp.Overlaps) -> str:
    +1857        return self.binary(expression, "OVERLAPS")
     
    @@ -9336,8 +9434,8 @@ Default: True
    -
    1845    def distance_sql(self, expression: exp.Distance) -> str:
    -1846        return self.binary(expression, "<->")
    +            
    1859    def distance_sql(self, expression: exp.Distance) -> str:
    +1860        return self.binary(expression, "<->")
     
    @@ -9355,8 +9453,8 @@ Default: True
    -
    1848    def dot_sql(self, expression: exp.Dot) -> str:
    -1849        return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}"
    +            
    1862    def dot_sql(self, expression: exp.Dot) -> str:
    +1863        return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}"
     
    @@ -9374,8 +9472,8 @@ Default: True
    -
    1851    def eq_sql(self, expression: exp.EQ) -> str:
    -1852        return self.binary(expression, "=")
    +            
    1865    def eq_sql(self, expression: exp.EQ) -> str:
    +1866        return self.binary(expression, "=")
     
    @@ -9393,8 +9491,8 @@ Default: True
    -
    1854    def escape_sql(self, expression: exp.Escape) -> str:
    -1855        return self.binary(expression, "ESCAPE")
    +            
    1868    def escape_sql(self, expression: exp.Escape) -> str:
    +1869        return self.binary(expression, "ESCAPE")
     
    @@ -9412,8 +9510,8 @@ Default: True
    -
    1857    def glob_sql(self, expression: exp.Glob) -> str:
    -1858        return self.binary(expression, "GLOB")
    +            
    1871    def glob_sql(self, expression: exp.Glob) -> str:
    +1872        return self.binary(expression, "GLOB")
     
    @@ -9431,8 +9529,8 @@ Default: True
    -
    1860    def gt_sql(self, expression: exp.GT) -> str:
    -1861        return self.binary(expression, ">")
    +            
    1874    def gt_sql(self, expression: exp.GT) -> str:
    +1875        return self.binary(expression, ">")
     
    @@ -9450,8 +9548,8 @@ Default: True
    -
    1863    def gte_sql(self, expression: exp.GTE) -> str:
    -1864        return self.binary(expression, ">=")
    +            
    1877    def gte_sql(self, expression: exp.GTE) -> str:
    +1878        return self.binary(expression, ">=")
     
    @@ -9469,8 +9567,27 @@ Default: True
    -
    1866    def ilike_sql(self, expression: exp.ILike) -> str:
    -1867        return self.binary(expression, "ILIKE")
    +            
    1880    def ilike_sql(self, expression: exp.ILike) -> str:
    +1881        return self.binary(expression, "ILIKE")
    +
    + + + + +
    +
    + +
    + + def + ilikeany_sql(self, expression: sqlglot.expressions.ILikeAny) -> str: + + + +
    + +
    1883    def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    +1884        return self.binary(expression, "ILIKE ANY")
     
    @@ -9488,8 +9605,8 @@ Default: True
    -
    1869    def is_sql(self, expression: exp.Is) -> str:
    -1870        return self.binary(expression, "IS")
    +            
    1886    def is_sql(self, expression: exp.Is) -> str:
    +1887        return self.binary(expression, "IS")
     
    @@ -9507,8 +9624,27 @@ Default: True
    -
    1872    def like_sql(self, expression: exp.Like) -> str:
    -1873        return self.binary(expression, "LIKE")
    +            
    1889    def like_sql(self, expression: exp.Like) -> str:
    +1890        return self.binary(expression, "LIKE")
    +
    + + + + +
    +
    + +
    + + def + likeany_sql(self, expression: sqlglot.expressions.LikeAny) -> str: + + + +
    + +
    1892    def likeany_sql(self, expression: exp.LikeAny) -> str:
    +1893        return self.binary(expression, "LIKE ANY")
     
    @@ -9526,8 +9662,8 @@ Default: True
    -
    1875    def similarto_sql(self, expression: exp.SimilarTo) -> str:
    -1876        return self.binary(expression, "SIMILAR TO")
    +            
    1895    def similarto_sql(self, expression: exp.SimilarTo) -> str:
    +1896        return self.binary(expression, "SIMILAR TO")
     
    @@ -9545,8 +9681,8 @@ Default: True
    -
    1878    def lt_sql(self, expression: exp.LT) -> str:
    -1879        return self.binary(expression, "<")
    +            
    1898    def lt_sql(self, expression: exp.LT) -> str:
    +1899        return self.binary(expression, "<")
     
    @@ -9564,8 +9700,8 @@ Default: True
    -
    1881    def lte_sql(self, expression: exp.LTE) -> str:
    -1882        return self.binary(expression, "<=")
    +            
    1901    def lte_sql(self, expression: exp.LTE) -> str:
    +1902        return self.binary(expression, "<=")
     
    @@ -9583,8 +9719,8 @@ Default: True
    -
    1884    def mod_sql(self, expression: exp.Mod) -> str:
    -1885        return self.binary(expression, "%")
    +            
    1904    def mod_sql(self, expression: exp.Mod) -> str:
    +1905        return self.binary(expression, "%")
     
    @@ -9602,8 +9738,8 @@ Default: True
    -
    1887    def mul_sql(self, expression: exp.Mul) -> str:
    -1888        return self.binary(expression, "*")
    +            
    1907    def mul_sql(self, expression: exp.Mul) -> str:
    +1908        return self.binary(expression, "*")
     
    @@ -9621,8 +9757,8 @@ Default: True
    -
    1890    def neq_sql(self, expression: exp.NEQ) -> str:
    -1891        return self.binary(expression, "<>")
    +            
    1910    def neq_sql(self, expression: exp.NEQ) -> str:
    +1911        return self.binary(expression, "<>")
     
    @@ -9640,8 +9776,8 @@ Default: True
    -
    1893    def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str:
    -1894        return self.binary(expression, "IS NOT DISTINCT FROM")
    +            
    1913    def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str:
    +1914        return self.binary(expression, "IS NOT DISTINCT FROM")
     
    @@ -9659,8 +9795,8 @@ Default: True
    -
    1896    def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str:
    -1897        return self.binary(expression, "IS DISTINCT FROM")
    +            
    1916    def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str:
    +1917        return self.binary(expression, "IS DISTINCT FROM")
     
    @@ -9678,8 +9814,8 @@ Default: True
    -
    1899    def or_sql(self, expression: exp.Or) -> str:
    -1900        return self.connector_sql(expression, "OR")
    +            
    1919    def or_sql(self, expression: exp.Or) -> str:
    +1920        return self.connector_sql(expression, "OR")
     
    @@ -9697,8 +9833,8 @@ Default: True
    -
    1902    def slice_sql(self, expression: exp.Slice) -> str:
    -1903        return self.binary(expression, ":")
    +            
    1922    def slice_sql(self, expression: exp.Slice) -> str:
    +1923        return self.binary(expression, ":")
     
    @@ -9716,8 +9852,8 @@ Default: True
    -
    1905    def sub_sql(self, expression: exp.Sub) -> str:
    -1906        return self.binary(expression, "-")
    +            
    1925    def sub_sql(self, expression: exp.Sub) -> str:
    +1926        return self.binary(expression, "-")
     
    @@ -9735,8 +9871,8 @@ Default: True
    -
    1908    def trycast_sql(self, expression: exp.TryCast) -> str:
    -1909        return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
    +            
    1928    def trycast_sql(self, expression: exp.TryCast) -> str:
    +1929        return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
     
    @@ -9754,12 +9890,12 @@ Default: True
    -
    1911    def use_sql(self, expression: exp.Use) -> str:
    -1912        kind = self.sql(expression, "kind")
    -1913        kind = f" {kind}" if kind else ""
    -1914        this = self.sql(expression, "this")
    -1915        this = f" {this}" if this else ""
    -1916        return f"USE{kind}{this}"
    +            
    1931    def use_sql(self, expression: exp.Use) -> str:
    +1932        kind = self.sql(expression, "kind")
    +1933        kind = f" {kind}" if kind else ""
    +1934        this = self.sql(expression, "this")
    +1935        this = f" {this}" if this else ""
    +1936        return f"USE{kind}{this}"
     
    @@ -9777,8 +9913,8 @@ Default: True
    -
    1918    def binary(self, expression: exp.Binary, op: str) -> str:
    -1919        return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}"
    +            
    1938    def binary(self, expression: exp.Binary, op: str) -> str:
    +1939        return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}"
     
    @@ -9796,16 +9932,16 @@ Default: True
    -
    1921    def function_fallback_sql(self, expression: exp.Func) -> str:
    -1922        args = []
    -1923        for arg_value in expression.args.values():
    -1924            if isinstance(arg_value, list):
    -1925                for value in arg_value:
    -1926                    args.append(value)
    -1927            else:
    -1928                args.append(arg_value)
    -1929
    -1930        return self.func(expression.sql_name(), *args)
    +            
    1941    def function_fallback_sql(self, expression: exp.Func) -> str:
    +1942        args = []
    +1943        for arg_value in expression.args.values():
    +1944            if isinstance(arg_value, list):
    +1945                for value in arg_value:
    +1946                    args.append(value)
    +1947            else:
    +1948                args.append(arg_value)
    +1949
    +1950        return self.func(expression.sql_name(), *args)
     
    @@ -9823,8 +9959,8 @@ Default: True
    -
    1932    def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str:
    -1933        return f"{self.normalize_func(name)}({self.format_args(*args)})"
    +            
    1952    def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str:
    +1953        return f"{self.normalize_func(name)}({self.format_args(*args)})"
     
    @@ -9842,11 +9978,11 @@ Default: True
    -
    1935    def format_args(self, *args: t.Optional[str | exp.Expression]) -> str:
    -1936        arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None)
    -1937        if self.pretty and self.text_width(arg_sqls) > self._max_text_width:
    -1938            return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True)
    -1939        return ", ".join(arg_sqls)
    +            
    1955    def format_args(self, *args: t.Optional[str | exp.Expression]) -> str:
    +1956        arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None)
    +1957        if self.pretty and self.text_width(arg_sqls) > self._max_text_width:
    +1958            return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True)
    +1959        return ", ".join(arg_sqls)
     
    @@ -9864,8 +10000,8 @@ Default: True
    -
    1941    def text_width(self, args: t.Iterable) -> int:
    -1942        return sum(len(arg) for arg in args)
    +            
    1961    def text_width(self, args: t.Iterable) -> int:
    +1962        return sum(len(arg) for arg in args)
     
    @@ -9883,8 +10019,8 @@ Default: True
    -
    1944    def format_time(self, expression: exp.Expression) -> t.Optional[str]:
    -1945        return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie)
    +            
    1964    def format_time(self, expression: exp.Expression) -> t.Optional[str]:
    +1965        return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie)
     
    @@ -9902,46 +10038,46 @@ Default: True
    -
    1947    def expressions(
    -1948        self,
    -1949        expression: exp.Expression,
    -1950        key: t.Optional[str] = None,
    -1951        flat: bool = False,
    -1952        indent: bool = True,
    -1953        sep: str = ", ",
    -1954        prefix: str = "",
    -1955    ) -> str:
    -1956        expressions = expression.args.get(key or "expressions")
    -1957
    -1958        if not expressions:
    -1959            return ""
    -1960
    -1961        if flat:
    -1962            return sep.join(self.sql(e) for e in expressions)
    -1963
    -1964        num_sqls = len(expressions)
    -1965
    -1966        # These are calculated once in case we have the leading_comma / pretty option set, correspondingly
    -1967        pad = " " * self.pad
    -1968        stripped_sep = sep.strip()
    -1969
    -1970        result_sqls = []
    -1971        for i, e in enumerate(expressions):
    -1972            sql = self.sql(e, comment=False)
    -1973            comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else ""
    -1974
    -1975            if self.pretty:
    -1976                if self._leading_comma:
    -1977                    result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}")
    -1978                else:
    -1979                    result_sqls.append(
    -1980                        f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}"
    -1981                    )
    -1982            else:
    -1983                result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}")
    -1984
    -1985        result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls)
    -1986        return self.indent(result_sql, skip_first=False) if indent else result_sql
    +            
    1967    def expressions(
    +1968        self,
    +1969        expression: exp.Expression,
    +1970        key: t.Optional[str] = None,
    +1971        flat: bool = False,
    +1972        indent: bool = True,
    +1973        sep: str = ", ",
    +1974        prefix: str = "",
    +1975    ) -> str:
    +1976        expressions = expression.args.get(key or "expressions")
    +1977
    +1978        if not expressions:
    +1979            return ""
    +1980
    +1981        if flat:
    +1982            return sep.join(self.sql(e) for e in expressions)
    +1983
    +1984        num_sqls = len(expressions)
    +1985
    +1986        # These are calculated once in case we have the leading_comma / pretty option set, correspondingly
    +1987        pad = " " * self.pad
    +1988        stripped_sep = sep.strip()
    +1989
    +1990        result_sqls = []
    +1991        for i, e in enumerate(expressions):
    +1992            sql = self.sql(e, comment=False)
    +1993            comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else ""
    +1994
    +1995            if self.pretty:
    +1996                if self._leading_comma:
    +1997                    result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}")
    +1998                else:
    +1999                    result_sqls.append(
    +2000                        f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}"
    +2001                    )
    +2002            else:
    +2003                result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}")
    +2004
    +2005        result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls)
    +2006        return self.indent(result_sql, skip_first=False) if indent else result_sql
     
    @@ -9959,12 +10095,12 @@ Default: True
    -
    1988    def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str:
    -1989        flat = flat or isinstance(expression.parent, exp.Properties)
    -1990        expressions_sql = self.expressions(expression, flat=flat)
    -1991        if flat:
    -1992            return f"{op} {expressions_sql}"
    -1993        return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}"
    +            
    2008    def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str:
    +2009        flat = flat or isinstance(expression.parent, exp.Properties)
    +2010        expressions_sql = self.expressions(expression, flat=flat)
    +2011        if flat:
    +2012            return f"{op} {expressions_sql}"
    +2013        return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}"
     
    @@ -9982,11 +10118,11 @@ Default: True
    -
    1995    def naked_property(self, expression: exp.Property) -> str:
    -1996        property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__)
    -1997        if not property_name:
    -1998            self.unsupported(f"Unsupported property {expression.__class__.__name__}")
    -1999        return f"{property_name} {self.sql(expression, 'this')}"
    +            
    2015    def naked_property(self, expression: exp.Property) -> str:
    +2016        property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__)
    +2017        if not property_name:
    +2018            self.unsupported(f"Unsupported property {expression.__class__.__name__}")
    +2019        return f"{property_name} {self.sql(expression, 'this')}"
     
    @@ -10004,12 +10140,12 @@ Default: True
    -
    2001    def set_operation(self, expression: exp.Expression, op: str) -> str:
    -2002        this = self.sql(expression, "this")
    -2003        op = self.seg(op)
    -2004        return self.query_modifiers(
    -2005            expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}"
    -2006        )
    +            
    2021    def set_operation(self, expression: exp.Expression, op: str) -> str:
    +2022        this = self.sql(expression, "this")
    +2023        op = self.seg(op)
    +2024        return self.query_modifiers(
    +2025            expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}"
    +2026        )
     
    @@ -10027,8 +10163,8 @@ Default: True
    -
    2008    def tag_sql(self, expression: exp.Tag) -> str:
    -2009        return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}"
    +            
    2028    def tag_sql(self, expression: exp.Tag) -> str:
    +2029        return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}"
     
    @@ -10046,8 +10182,8 @@ Default: True
    -
    2011    def token_sql(self, token_type: TokenType) -> str:
    -2012        return self.TOKEN_MAPPING.get(token_type, token_type.name)
    +            
    2031    def token_sql(self, token_type: TokenType) -> str:
    +2032        return self.TOKEN_MAPPING.get(token_type, token_type.name)
     
    @@ -10065,13 +10201,13 @@ Default: True
    -
    2014    def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str:
    -2015        this = self.sql(expression, "this")
    -2016        expressions = self.no_identify(self.expressions, expression)
    -2017        expressions = (
    -2018            self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}"
    -2019        )
    -2020        return f"{this}{expressions}"
    +            
    2034    def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str:
    +2035        this = self.sql(expression, "this")
    +2036        expressions = self.no_identify(self.expressions, expression)
    +2037        expressions = (
    +2038            self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}"
    +2039        )
    +2040        return f"{this}{expressions}"
     
    @@ -10089,10 +10225,10 @@ Default: True
    -
    2022    def joinhint_sql(self, expression: exp.JoinHint) -> str:
    -2023        this = self.sql(expression, "this")
    -2024        expressions = self.expressions(expression, flat=True)
    -2025        return f"{this}({expressions})"
    +            
    2042    def joinhint_sql(self, expression: exp.JoinHint) -> str:
    +2043        this = self.sql(expression, "this")
    +2044        expressions = self.expressions(expression, flat=True)
    +2045        return f"{this}({expressions})"
     
    @@ -10110,8 +10246,8 @@ Default: True
    -
    2027    def kwarg_sql(self, expression: exp.Kwarg) -> str:
    -2028        return self.binary(expression, "=>")
    +            
    2047    def kwarg_sql(self, expression: exp.Kwarg) -> str:
    +2048        return self.binary(expression, "=>")
     
    @@ -10129,25 +10265,25 @@ Default: True
    -
    2030    def when_sql(self, expression: exp.When) -> str:
    -2031        matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED"
    -2032        source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else ""
    -2033        condition = self.sql(expression, "condition")
    -2034        condition = f" AND {condition}" if condition else ""
    -2035
    -2036        then_expression = expression.args.get("then")
    -2037        if isinstance(then_expression, exp.Insert):
    -2038            then = f"INSERT {self.sql(then_expression, 'this')}"
    -2039            if "expression" in then_expression.args:
    -2040                then += f" VALUES {self.sql(then_expression, 'expression')}"
    -2041        elif isinstance(then_expression, exp.Update):
    -2042            if isinstance(then_expression.args.get("expressions"), exp.Star):
    -2043                then = f"UPDATE {self.sql(then_expression, 'expressions')}"
    -2044            else:
    -2045                then = f"UPDATE SET {self.expressions(then_expression, flat=True)}"
    -2046        else:
    -2047            then = self.sql(then_expression)
    -2048        return f"WHEN {matched}{source}{condition} THEN {then}"
    +            
    2050    def when_sql(self, expression: exp.When) -> str:
    +2051        matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED"
    +2052        source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else ""
    +2053        condition = self.sql(expression, "condition")
    +2054        condition = f" AND {condition}" if condition else ""
    +2055
    +2056        then_expression = expression.args.get("then")
    +2057        if isinstance(then_expression, exp.Insert):
    +2058            then = f"INSERT {self.sql(then_expression, 'this')}"
    +2059            if "expression" in then_expression.args:
    +2060                then += f" VALUES {self.sql(then_expression, 'expression')}"
    +2061        elif isinstance(then_expression, exp.Update):
    +2062            if isinstance(then_expression.args.get("expressions"), exp.Star):
    +2063                then = f"UPDATE {self.sql(then_expression, 'expressions')}"
    +2064            else:
    +2065                then = f"UPDATE SET {self.expressions(then_expression, flat=True)}"
    +2066        else:
    +2067            then = self.sql(then_expression)
    +2068        return f"WHEN {matched}{source}{condition} THEN {then}"
     
    @@ -10165,11 +10301,11 @@ Default: True
    -
    2050    def merge_sql(self, expression: exp.Merge) -> str:
    -2051        this = self.sql(expression, "this")
    -2052        using = f"USING {self.sql(expression, 'using')}"
    -2053        on = f"ON {self.sql(expression, 'on')}"
    -2054        return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}"
    +            
    2070    def merge_sql(self, expression: exp.Merge) -> str:
    +2071        this = self.sql(expression, "this")
    +2072        using = f"USING {self.sql(expression, 'using')}"
    +2073        on = f"ON {self.sql(expression, 'on')}"
    +2074        return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}"
     
    @@ -10187,11 +10323,11 @@ Default: True
    -
    2056    def tochar_sql(self, expression: exp.ToChar) -> str:
    -2057        if expression.args.get("format"):
    -2058            self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function")
    -2059
    -2060        return self.sql(exp.cast(expression.this, "text"))
    +            
    2076    def tochar_sql(self, expression: exp.ToChar) -> str:
    +2077        if expression.args.get("format"):
    +2078            self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function")
    +2079
    +2080        return self.sql(exp.cast(expression.this, "text"))
     
    diff --git a/docs/sqlglot/helper.html b/docs/sqlglot/helper.html index 423c19f..42b0455 100644 --- a/docs/sqlglot/helper.html +++ b/docs/sqlglot/helper.html @@ -3,7 +3,7 @@ - + sqlglot.helper API documentation diff --git a/docs/sqlglot/lineage.html b/docs/sqlglot/lineage.html index 66858cc..a9038d5 100644 --- a/docs/sqlglot/lineage.html +++ b/docs/sqlglot/lineage.html @@ -3,7 +3,7 @@ - + sqlglot.lineage API documentation @@ -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 0x7f0637f3fa30>, <function qualify_columns at 0x7f0637f3e950>, <function expand_laterals at 0x7f0637f3d000>), 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 0x7f1311384310>, <function qualify_columns at 0x7f13113b71c0>, <function expand_laterals at 0x7f13113b5870>), dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.lineage.Node: diff --git a/docs/sqlglot/optimizer.html b/docs/sqlglot/optimizer.html index 86b6cb0..84c1f70 100644 --- a/docs/sqlglot/optimizer.html +++ b/docs/sqlglot/optimizer.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer API documentation diff --git a/docs/sqlglot/optimizer/annotate_types.html b/docs/sqlglot/optimizer/annotate_types.html index a60f38d..bbbda35 100644 --- a/docs/sqlglot/optimizer/annotate_types.html +++ b/docs/sqlglot/optimizer/annotate_types.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.annotate_types API documentation diff --git a/docs/sqlglot/optimizer/canonicalize.html b/docs/sqlglot/optimizer/canonicalize.html index bc73564..41cafe5 100644 --- a/docs/sqlglot/optimizer/canonicalize.html +++ b/docs/sqlglot/optimizer/canonicalize.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.canonicalize API documentation diff --git a/docs/sqlglot/optimizer/eliminate_ctes.html b/docs/sqlglot/optimizer/eliminate_ctes.html index 1d1c21e..af94fae 100644 --- a/docs/sqlglot/optimizer/eliminate_ctes.html +++ b/docs/sqlglot/optimizer/eliminate_ctes.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.eliminate_ctes API documentation diff --git a/docs/sqlglot/optimizer/eliminate_joins.html b/docs/sqlglot/optimizer/eliminate_joins.html index 30ff3d4..be1c58f 100644 --- a/docs/sqlglot/optimizer/eliminate_joins.html +++ b/docs/sqlglot/optimizer/eliminate_joins.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.eliminate_joins API documentation diff --git a/docs/sqlglot/optimizer/eliminate_subqueries.html b/docs/sqlglot/optimizer/eliminate_subqueries.html index 28b01b3..be4447c 100644 --- a/docs/sqlglot/optimizer/eliminate_subqueries.html +++ b/docs/sqlglot/optimizer/eliminate_subqueries.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.eliminate_subqueries API documentation diff --git a/docs/sqlglot/optimizer/expand_laterals.html b/docs/sqlglot/optimizer/expand_laterals.html index 98dce0a..6535fb3 100644 --- a/docs/sqlglot/optimizer/expand_laterals.html +++ b/docs/sqlglot/optimizer/expand_laterals.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.expand_laterals API documentation diff --git a/docs/sqlglot/optimizer/expand_multi_table_selects.html b/docs/sqlglot/optimizer/expand_multi_table_selects.html index db8f56e..e76bbbc 100644 --- a/docs/sqlglot/optimizer/expand_multi_table_selects.html +++ b/docs/sqlglot/optimizer/expand_multi_table_selects.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.expand_multi_table_selects API documentation diff --git a/docs/sqlglot/optimizer/isolate_table_selects.html b/docs/sqlglot/optimizer/isolate_table_selects.html index 09d0cbe..3233395 100644 --- a/docs/sqlglot/optimizer/isolate_table_selects.html +++ b/docs/sqlglot/optimizer/isolate_table_selects.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.isolate_table_selects API documentation diff --git a/docs/sqlglot/optimizer/lower_identities.html b/docs/sqlglot/optimizer/lower_identities.html index 43f7e5a..0279459 100644 --- a/docs/sqlglot/optimizer/lower_identities.html +++ b/docs/sqlglot/optimizer/lower_identities.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.lower_identities API documentation diff --git a/docs/sqlglot/optimizer/merge_subqueries.html b/docs/sqlglot/optimizer/merge_subqueries.html index 8081d87..4943588 100644 --- a/docs/sqlglot/optimizer/merge_subqueries.html +++ b/docs/sqlglot/optimizer/merge_subqueries.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.merge_subqueries API documentation diff --git a/docs/sqlglot/optimizer/normalize.html b/docs/sqlglot/optimizer/normalize.html index 92095ba..3771520 100644 --- a/docs/sqlglot/optimizer/normalize.html +++ b/docs/sqlglot/optimizer/normalize.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.normalize API documentation diff --git a/docs/sqlglot/optimizer/optimize_joins.html b/docs/sqlglot/optimizer/optimize_joins.html index 0e77efe..5df8059 100644 --- a/docs/sqlglot/optimizer/optimize_joins.html +++ b/docs/sqlglot/optimizer/optimize_joins.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.optimize_joins API documentation diff --git a/docs/sqlglot/optimizer/optimizer.html b/docs/sqlglot/optimizer/optimizer.html index 28abdf8..4364ab6 100644 --- a/docs/sqlglot/optimizer/optimizer.html +++ b/docs/sqlglot/optimizer/optimizer.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.optimizer API documentation @@ -158,7 +158,7 @@
    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 0x7f0637f3d360>, <function qualify_tables at 0x7f0637f3fa30>, <function isolate_table_selects at 0x7f0637f3d240>, <function qualify_columns at 0x7f0637f3e950>, <function expand_laterals at 0x7f0637f3d000>, <function pushdown_projections at 0x7f0637f3f400>, <function validate_qualify_columns at 0x7f0637f3e9e0>, <function normalize at 0x7f0637eeae60>, <function unnest_subqueries at 0x7f0637f3fb50>, <function expand_multi_table_selects at 0x7f0637f3d1b0>, <function pushdown_predicates at 0x7f0637f3e4d0>, <function optimize_joins at 0x7f0637f3e0e0>, <function eliminate_subqueries at 0x7f0637f3cc10>, <function merge_subqueries at 0x7f0637f3d630>, <function eliminate_joins at 0x7f0637eead40>, <function eliminate_ctes at 0x7f0637eeac20>, <function annotate_types at 0x7f0637ec7490>, <function canonicalize at 0x7f0637eea680>, <function simplify at 0x7f0637eeaf80>), **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 0x7f13113b5bd0>, <function qualify_tables at 0x7f1311384310>, <function isolate_table_selects at 0x7f13113b5ab0>, <function qualify_columns at 0x7f13113b71c0>, <function expand_laterals at 0x7f13113b5870>, <function pushdown_projections at 0x7f13113b7c70>, <function validate_qualify_columns at 0x7f13113b7250>, <function normalize at 0x7f13113976d0>, <function unnest_subqueries at 0x7f1311384430>, <function expand_multi_table_selects at 0x7f13113b5a20>, <function pushdown_predicates at 0x7f13113b6d40>, <function optimize_joins at 0x7f13113b6950>, <function eliminate_subqueries at 0x7f13113b5480>, <function merge_subqueries at 0x7f13113b5ea0>, <function eliminate_joins at 0x7f13113975b0>, <function eliminate_ctes at 0x7f1311397490>, <function annotate_types at 0x7f1311343d00>, <function canonicalize at 0x7f1311396ef0>, <function simplify at 0x7f13113977f0>), **kwargs): diff --git a/docs/sqlglot/optimizer/pushdown_predicates.html b/docs/sqlglot/optimizer/pushdown_predicates.html index f9371f4..93893bf 100644 --- a/docs/sqlglot/optimizer/pushdown_predicates.html +++ b/docs/sqlglot/optimizer/pushdown_predicates.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.pushdown_predicates API documentation diff --git a/docs/sqlglot/optimizer/pushdown_projections.html b/docs/sqlglot/optimizer/pushdown_projections.html index 18ac794..99bf7f0 100644 --- a/docs/sqlglot/optimizer/pushdown_projections.html +++ b/docs/sqlglot/optimizer/pushdown_projections.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.pushdown_projections API documentation diff --git a/docs/sqlglot/optimizer/qualify_columns.html b/docs/sqlglot/optimizer/qualify_columns.html index 2211a0b..328bf86 100644 --- a/docs/sqlglot/optimizer/qualify_columns.html +++ b/docs/sqlglot/optimizer/qualify_columns.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.qualify_columns API documentation @@ -222,12 +222,12 @@ 143 selects = {} 144 145 # Replace references to select aliases -146 def transform(node, *_): +146 def transform(node, source_first=True): 147 if isinstance(node, exp.Column) and not node.table: 148 table = resolver.get_table(node.name) 149 150 # Source columns get priority over select aliases -151 if table: +151 if source_first and table: 152 node.set("table", table) 153 return node 154 @@ -242,356 +242,362 @@ 163 select = select.this 164 return select.copy() 165 -166 return node -167 -168 where = scope.expression.args.get("where") -169 if where: -170 where.transform(transform, copy=False) +166 node.set("table", table) +167 elif isinstance(node, exp.Expression) and not isinstance(node, exp.Subqueryable): +168 exp.replace_children(node, transform, source_first) +169 +170 return node 171 -172 group = scope.expression.args.get("group") -173 if group: -174 group.transform(transform, copy=False) -175 -176 -177def _expand_group_by(scope, resolver): -178 group = scope.expression.args.get("group") -179 if not group: -180 return +172 for select in scope.expression.selects: +173 transform(select) +174 +175 for modifier, source_first in ( +176 ("where", True), +177 ("group", True), +178 ("having", False), +179 ): +180 transform(scope.expression.args.get(modifier), source_first=source_first) 181 -182 group.set("expressions", _expand_positional_references(scope, group.expressions)) -183 scope.expression.set("group", group) -184 -185 -186def _expand_order_by(scope): -187 order = scope.expression.args.get("order") -188 if not order: -189 return +182 +183def _expand_group_by(scope, resolver): +184 group = scope.expression.args.get("group") +185 if not group: +186 return +187 +188 group.set("expressions", _expand_positional_references(scope, group.expressions)) +189 scope.expression.set("group", group) 190 -191 ordereds = order.expressions -192 for ordered, new_expression in zip( -193 ordereds, -194 _expand_positional_references(scope, (o.this for o in ordereds)), -195 ): -196 ordered.set("this", new_expression) -197 -198 -199def _expand_positional_references(scope, expressions): -200 new_nodes = [] -201 for node in expressions: -202 if node.is_int: -203 try: -204 select = scope.selects[int(node.name) - 1] -205 except IndexError: -206 raise OptimizeError(f"Unknown output column: {node.name}") -207 if isinstance(select, exp.Alias): -208 select = select.this -209 new_nodes.append(select.copy()) -210 scope.clear_cache() -211 else: -212 new_nodes.append(node) -213 -214 return new_nodes -215 -216 -217def _qualify_columns(scope, resolver): -218 """Disambiguate columns, ensuring each column specifies a source""" -219 for column in scope.columns: -220 column_table = column.table -221 column_name = column.name +191 +192def _expand_order_by(scope): +193 order = scope.expression.args.get("order") +194 if not order: +195 return +196 +197 ordereds = order.expressions +198 for ordered, new_expression in zip( +199 ordereds, +200 _expand_positional_references(scope, (o.this for o in ordereds)), +201 ): +202 ordered.set("this", new_expression) +203 +204 +205def _expand_positional_references(scope, expressions): +206 new_nodes = [] +207 for node in expressions: +208 if node.is_int: +209 try: +210 select = scope.selects[int(node.name) - 1] +211 except IndexError: +212 raise OptimizeError(f"Unknown output column: {node.name}") +213 if isinstance(select, exp.Alias): +214 select = select.this +215 new_nodes.append(select.copy()) +216 scope.clear_cache() +217 else: +218 new_nodes.append(node) +219 +220 return new_nodes +221 222 -223 if column_table and column_table in scope.sources: -224 source_columns = resolver.get_source_columns(column_table) -225 if source_columns and column_name not in source_columns and "*" not in source_columns: -226 raise OptimizeError(f"Unknown column: {column_name}") -227 -228 if not column_table: -229 column_table = resolver.get_table(column_name) -230 -231 # column_table can be a '' because bigquery unnest has no table alias -232 if column_table: -233 column.set("table", column_table) -234 elif column_table not in scope.sources: -235 # structs are used like tables (e.g. "struct"."field"), so they need to be qualified -236 # separately and represented as dot(dot(...(<table>.<column>, field1), field2, ...)) -237 -238 root, *parts = column.parts -239 -240 if root.name in scope.sources: -241 # struct is already qualified, but we still need to change the AST representation -242 column_table = root -243 root, *parts = parts -244 else: -245 column_table = resolver.get_table(root.name) -246 -247 if column_table: -248 column.replace(exp.Dot.build([exp.column(root, table=column_table), *parts])) -249 -250 columns_missing_from_scope = [] -251 -252 # Determine whether each reference in the order by clause is to a column or an alias. -253 order = scope.expression.args.get("order") -254 -255 if order: -256 for ordered in order.expressions: -257 for column in ordered.find_all(exp.Column): -258 if ( -259 not column.table -260 and column.parent is not ordered -261 and column.name in resolver.all_columns -262 ): -263 columns_missing_from_scope.append(column) -264 -265 # Determine whether each reference in the having clause is to a column or an alias. -266 having = scope.expression.args.get("having") -267 -268 if having: -269 for column in having.find_all(exp.Column): -270 if ( -271 not column.table -272 and column.find_ancestor(exp.AggFunc) -273 and column.name in resolver.all_columns -274 ): -275 columns_missing_from_scope.append(column) -276 -277 for column in columns_missing_from_scope: -278 column_table = resolver.get_table(column.name) -279 -280 if column_table: -281 column.set("table", column_table) +223def _qualify_columns(scope, resolver): +224 """Disambiguate columns, ensuring each column specifies a source""" +225 for column in scope.columns: +226 column_table = column.table +227 column_name = column.name +228 +229 if column_table and column_table in scope.sources: +230 source_columns = resolver.get_source_columns(column_table) +231 if source_columns and column_name not in source_columns and "*" not in source_columns: +232 raise OptimizeError(f"Unknown column: {column_name}") +233 +234 if not column_table: +235 column_table = resolver.get_table(column_name) +236 +237 # column_table can be a '' because bigquery unnest has no table alias +238 if column_table: +239 column.set("table", column_table) +240 elif column_table not in scope.sources: +241 # structs are used like tables (e.g. "struct"."field"), so they need to be qualified +242 # separately and represented as dot(dot(...(<table>.<column>, field1), field2, ...)) +243 +244 root, *parts = column.parts +245 +246 if root.name in scope.sources: +247 # struct is already qualified, but we still need to change the AST representation +248 column_table = root +249 root, *parts = parts +250 else: +251 column_table = resolver.get_table(root.name) +252 +253 if column_table: +254 column.replace(exp.Dot.build([exp.column(root, table=column_table), *parts])) +255 +256 columns_missing_from_scope = [] +257 +258 # Determine whether each reference in the order by clause is to a column or an alias. +259 order = scope.expression.args.get("order") +260 +261 if order: +262 for ordered in order.expressions: +263 for column in ordered.find_all(exp.Column): +264 if ( +265 not column.table +266 and column.parent is not ordered +267 and column.name in resolver.all_columns +268 ): +269 columns_missing_from_scope.append(column) +270 +271 # Determine whether each reference in the having clause is to a column or an alias. +272 having = scope.expression.args.get("having") +273 +274 if having: +275 for column in having.find_all(exp.Column): +276 if ( +277 not column.table +278 and column.find_ancestor(exp.AggFunc) +279 and column.name in resolver.all_columns +280 ): +281 columns_missing_from_scope.append(column) 282 -283 -284def _expand_stars(scope, resolver, using_column_tables): -285 """Expand stars to lists of column selections""" -286 -287 new_selections = [] -288 except_columns = {} -289 replace_columns = {} -290 coalesced_columns = set() -291 -292 for expression in scope.selects: -293 if isinstance(expression, exp.Star): -294 tables = list(scope.selected_sources) -295 _add_except_columns(expression, tables, except_columns) -296 _add_replace_columns(expression, tables, replace_columns) -297 elif expression.is_star: -298 tables = [expression.table] -299 _add_except_columns(expression.this, tables, except_columns) -300 _add_replace_columns(expression.this, tables, replace_columns) -301 else: -302 new_selections.append(expression) -303 continue -304 -305 for table in tables: -306 if table not in scope.sources: -307 raise OptimizeError(f"Unknown table: {table}") -308 columns = resolver.get_source_columns(table, only_visible=True) -309 -310 if columns and "*" not in columns: -311 table_id = id(table) -312 for name in columns: -313 if name in using_column_tables and table in using_column_tables[name]: -314 if name in coalesced_columns: -315 continue -316 -317 coalesced_columns.add(name) -318 tables = using_column_tables[name] -319 coalesce = [exp.column(name, table=table) for table in tables] -320 -321 new_selections.append( -322 exp.alias_( -323 exp.Coalesce(this=coalesce[0], expressions=coalesce[1:]), alias=name -324 ) -325 ) -326 elif name not in except_columns.get(table_id, set()): -327 alias_ = replace_columns.get(table_id, {}).get(name, name) -328 column = exp.column(name, table) -329 new_selections.append(alias(column, alias_) if alias_ != name else column) -330 else: -331 return -332 scope.expression.set("expressions", new_selections) -333 -334 -335def _add_except_columns(expression, tables, except_columns): -336 except_ = expression.args.get("except") -337 -338 if not except_: -339 return +283 for column in columns_missing_from_scope: +284 column_table = resolver.get_table(column.name) +285 +286 if column_table: +287 column.set("table", column_table) +288 +289 +290def _expand_stars(scope, resolver, using_column_tables): +291 """Expand stars to lists of column selections""" +292 +293 new_selections = [] +294 except_columns = {} +295 replace_columns = {} +296 coalesced_columns = set() +297 +298 for expression in scope.selects: +299 if isinstance(expression, exp.Star): +300 tables = list(scope.selected_sources) +301 _add_except_columns(expression, tables, except_columns) +302 _add_replace_columns(expression, tables, replace_columns) +303 elif expression.is_star: +304 tables = [expression.table] +305 _add_except_columns(expression.this, tables, except_columns) +306 _add_replace_columns(expression.this, tables, replace_columns) +307 else: +308 new_selections.append(expression) +309 continue +310 +311 for table in tables: +312 if table not in scope.sources: +313 raise OptimizeError(f"Unknown table: {table}") +314 columns = resolver.get_source_columns(table, only_visible=True) +315 +316 if columns and "*" not in columns: +317 table_id = id(table) +318 for name in columns: +319 if name in using_column_tables and table in using_column_tables[name]: +320 if name in coalesced_columns: +321 continue +322 +323 coalesced_columns.add(name) +324 tables = using_column_tables[name] +325 coalesce = [exp.column(name, table=table) for table in tables] +326 +327 new_selections.append( +328 exp.alias_( +329 exp.Coalesce(this=coalesce[0], expressions=coalesce[1:]), alias=name +330 ) +331 ) +332 elif name not in except_columns.get(table_id, set()): +333 alias_ = replace_columns.get(table_id, {}).get(name, name) +334 column = exp.column(name, table) +335 new_selections.append(alias(column, alias_) if alias_ != name else column) +336 else: +337 return +338 scope.expression.set("expressions", new_selections) +339 340 -341 columns = {e.name for e in except_} -342 -343 for table in tables: -344 except_columns[id(table)] = columns -345 +341def _add_except_columns(expression, tables, except_columns): +342 except_ = expression.args.get("except") +343 +344 if not except_: +345 return 346 -347def _add_replace_columns(expression, tables, replace_columns): -348 replace = expression.args.get("replace") -349 -350 if not replace: -351 return +347 columns = {e.name for e in except_} +348 +349 for table in tables: +350 except_columns[id(table)] = columns +351 352 -353 columns = {e.this.name: e.alias for e in replace} -354 -355 for table in tables: -356 replace_columns[id(table)] = columns -357 +353def _add_replace_columns(expression, tables, replace_columns): +354 replace = expression.args.get("replace") +355 +356 if not replace: +357 return 358 -359def _qualify_outputs(scope): -360 """Ensure all output columns are aliased""" -361 new_selections = [] -362 -363 for i, (selection, aliased_column) in enumerate( -364 itertools.zip_longest(scope.selects, scope.outer_column_list) -365 ): -366 if isinstance(selection, exp.Subquery): -367 if not selection.output_name: -368 selection.set("alias", exp.TableAlias(this=exp.to_identifier(f"_col_{i}"))) -369 elif not isinstance(selection, exp.Alias) and not selection.is_star: -370 alias_ = alias(exp.column(""), alias=selection.output_name or f"_col_{i}") -371 alias_.set("this", selection) -372 selection = alias_ -373 -374 if aliased_column: -375 selection.set("alias", exp.to_identifier(aliased_column)) -376 -377 new_selections.append(selection) -378 -379 scope.expression.set("expressions", new_selections) -380 -381 -382class Resolver: -383 """ -384 Helper for resolving columns. -385 -386 This is a class so we can lazily load some things and easily share them across functions. -387 """ -388 -389 def __init__(self, scope, schema): -390 self.scope = scope -391 self.schema = schema -392 self._source_columns = None -393 self._unambiguous_columns = None -394 self._all_columns = None -395 -396 def get_table(self, column_name: str) -> t.Optional[exp.Identifier]: -397 """ -398 Get the table for a column name. -399 -400 Args: -401 column_name: The column name to find the table for. -402 Returns: -403 The table name if it can be found/inferred. -404 """ -405 if self._unambiguous_columns is None: -406 self._unambiguous_columns = self._get_unambiguous_columns( -407 self._get_all_source_columns() -408 ) -409 -410 table_name = self._unambiguous_columns.get(column_name) -411 -412 if not table_name: -413 sources_without_schema = tuple( -414 source -415 for source, columns in self._get_all_source_columns().items() -416 if not columns or "*" in columns -417 ) -418 if len(sources_without_schema) == 1: -419 table_name = sources_without_schema[0] -420 -421 if table_name not in self.scope.selected_sources: -422 return exp.to_identifier(table_name) -423 -424 node, _ = self.scope.selected_sources.get(table_name) -425 -426 if isinstance(node, exp.Subqueryable): -427 while node and node.alias != table_name: -428 node = node.parent +359 columns = {e.this.name: e.alias for e in replace} +360 +361 for table in tables: +362 replace_columns[id(table)] = columns +363 +364 +365def _qualify_outputs(scope): +366 """Ensure all output columns are aliased""" +367 new_selections = [] +368 +369 for i, (selection, aliased_column) in enumerate( +370 itertools.zip_longest(scope.selects, scope.outer_column_list) +371 ): +372 if isinstance(selection, exp.Subquery): +373 if not selection.output_name: +374 selection.set("alias", exp.TableAlias(this=exp.to_identifier(f"_col_{i}"))) +375 elif not isinstance(selection, exp.Alias) and not selection.is_star: +376 alias_ = alias(exp.column(""), alias=selection.output_name or f"_col_{i}") +377 alias_.set("this", selection) +378 selection = alias_ +379 +380 if aliased_column: +381 selection.set("alias", exp.to_identifier(aliased_column)) +382 +383 new_selections.append(selection) +384 +385 scope.expression.set("expressions", new_selections) +386 +387 +388class Resolver: +389 """ +390 Helper for resolving columns. +391 +392 This is a class so we can lazily load some things and easily share them across functions. +393 """ +394 +395 def __init__(self, scope, schema): +396 self.scope = scope +397 self.schema = schema +398 self._source_columns = None +399 self._unambiguous_columns = None +400 self._all_columns = None +401 +402 def get_table(self, column_name: str) -> t.Optional[exp.Identifier]: +403 """ +404 Get the table for a column name. +405 +406 Args: +407 column_name: The column name to find the table for. +408 Returns: +409 The table name if it can be found/inferred. +410 """ +411 if self._unambiguous_columns is None: +412 self._unambiguous_columns = self._get_unambiguous_columns( +413 self._get_all_source_columns() +414 ) +415 +416 table_name = self._unambiguous_columns.get(column_name) +417 +418 if not table_name: +419 sources_without_schema = tuple( +420 source +421 for source, columns in self._get_all_source_columns().items() +422 if not columns or "*" in columns +423 ) +424 if len(sources_without_schema) == 1: +425 table_name = sources_without_schema[0] +426 +427 if table_name not in self.scope.selected_sources: +428 return exp.to_identifier(table_name) 429 -430 node_alias = node.args.get("alias") -431 if node_alias: -432 return node_alias.this -433 -434 return exp.to_identifier( -435 table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None -436 ) -437 -438 @property -439 def all_columns(self): -440 """All available columns of all sources in this scope""" -441 if self._all_columns is None: -442 self._all_columns = { -443 column for columns in self._get_all_source_columns().values() for column in columns -444 } -445 return self._all_columns -446 -447 def get_source_columns(self, name, only_visible=False): -448 """Resolve the source columns for a given source `name`""" -449 if name not in self.scope.sources: -450 raise OptimizeError(f"Unknown table: {name}") -451 -452 source = self.scope.sources[name] -453 -454 # If referencing a table, return the columns from the schema -455 if isinstance(source, exp.Table): -456 return self.schema.column_names(source, only_visible) +430 node, _ = self.scope.selected_sources.get(table_name) +431 +432 if isinstance(node, exp.Subqueryable): +433 while node and node.alias != table_name: +434 node = node.parent +435 +436 node_alias = node.args.get("alias") +437 if node_alias: +438 return node_alias.this +439 +440 return exp.to_identifier( +441 table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None +442 ) +443 +444 @property +445 def all_columns(self): +446 """All available columns of all sources in this scope""" +447 if self._all_columns is None: +448 self._all_columns = { +449 column for columns in self._get_all_source_columns().values() for column in columns +450 } +451 return self._all_columns +452 +453 def get_source_columns(self, name, only_visible=False): +454 """Resolve the source columns for a given source `name`""" +455 if name not in self.scope.sources: +456 raise OptimizeError(f"Unknown table: {name}") 457 -458 if isinstance(source, Scope) and isinstance(source.expression, exp.Values): -459 return source.expression.alias_column_names -460 -461 # Otherwise, if referencing another scope, return that scope's named selects -462 return source.expression.named_selects +458 source = self.scope.sources[name] +459 +460 # If referencing a table, return the columns from the schema +461 if isinstance(source, exp.Table): +462 return self.schema.column_names(source, only_visible) 463 -464 def _get_all_source_columns(self): -465 if self._source_columns is None: -466 self._source_columns = { -467 k: self.get_source_columns(k) -468 for k in itertools.chain(self.scope.selected_sources, self.scope.lateral_sources) -469 } -470 return self._source_columns -471 -472 def _get_unambiguous_columns(self, source_columns): -473 """ -474 Find all the unambiguous columns in sources. -475 -476 Args: -477 source_columns (dict): Mapping of names to source columns -478 Returns: -479 dict: Mapping of column name to source name -480 """ -481 if not source_columns: -482 return {} -483 -484 source_columns = list(source_columns.items()) -485 -486 first_table, first_columns = source_columns[0] -487 unambiguous_columns = {col: first_table for col in self._find_unique_columns(first_columns)} -488 all_columns = set(unambiguous_columns) +464 if isinstance(source, Scope) and isinstance(source.expression, exp.Values): +465 return source.expression.alias_column_names +466 +467 # Otherwise, if referencing another scope, return that scope's named selects +468 return source.expression.named_selects +469 +470 def _get_all_source_columns(self): +471 if self._source_columns is None: +472 self._source_columns = { +473 k: self.get_source_columns(k) +474 for k in itertools.chain(self.scope.selected_sources, self.scope.lateral_sources) +475 } +476 return self._source_columns +477 +478 def _get_unambiguous_columns(self, source_columns): +479 """ +480 Find all the unambiguous columns in sources. +481 +482 Args: +483 source_columns (dict): Mapping of names to source columns +484 Returns: +485 dict: Mapping of column name to source name +486 """ +487 if not source_columns: +488 return {} 489 -490 for table, columns in source_columns[1:]: -491 unique = self._find_unique_columns(columns) -492 ambiguous = set(all_columns).intersection(unique) -493 all_columns.update(columns) -494 for column in ambiguous: -495 unambiguous_columns.pop(column, None) -496 for column in unique.difference(ambiguous): -497 unambiguous_columns[column] = table -498 -499 return unambiguous_columns -500 -501 @staticmethod -502 def _find_unique_columns(columns): -503 """ -504 Find the unique columns in a list of columns. -505 -506 Example: -507 >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"])) -508 ['a', 'c'] -509 -510 This is necessary because duplicate column names are ambiguous. -511 """ -512 counts = {} -513 for column in columns: -514 counts[column] = counts.get(column, 0) + 1 -515 return {column for column, count in counts.items() if count == 1} +490 source_columns = list(source_columns.items()) +491 +492 first_table, first_columns = source_columns[0] +493 unambiguous_columns = {col: first_table for col in self._find_unique_columns(first_columns)} +494 all_columns = set(unambiguous_columns) +495 +496 for table, columns in source_columns[1:]: +497 unique = self._find_unique_columns(columns) +498 ambiguous = set(all_columns).intersection(unique) +499 all_columns.update(columns) +500 for column in ambiguous: +501 unambiguous_columns.pop(column, None) +502 for column in unique.difference(ambiguous): +503 unambiguous_columns[column] = table +504 +505 return unambiguous_columns +506 +507 @staticmethod +508 def _find_unique_columns(columns): +509 """ +510 Find the unique columns in a list of columns. +511 +512 Example: +513 >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"])) +514 ['a', 'c'] +515 +516 This is necessary because duplicate column names are ambiguous. +517 """ +518 counts = {} +519 for column in columns: +520 counts[column] = counts.get(column, 0) + 1 +521 return {column for column, count in counts.items() if count == 1}
    @@ -717,140 +723,140 @@ -
    383class Resolver:
    -384    """
    -385    Helper for resolving columns.
    -386
    -387    This is a class so we can lazily load some things and easily share them across functions.
    -388    """
    -389
    -390    def __init__(self, scope, schema):
    -391        self.scope = scope
    -392        self.schema = schema
    -393        self._source_columns = None
    -394        self._unambiguous_columns = None
    -395        self._all_columns = None
    -396
    -397    def get_table(self, column_name: str) -> t.Optional[exp.Identifier]:
    -398        """
    -399        Get the table for a column name.
    -400
    -401        Args:
    -402            column_name: The column name to find the table for.
    -403        Returns:
    -404            The table name if it can be found/inferred.
    -405        """
    -406        if self._unambiguous_columns is None:
    -407            self._unambiguous_columns = self._get_unambiguous_columns(
    -408                self._get_all_source_columns()
    -409            )
    -410
    -411        table_name = self._unambiguous_columns.get(column_name)
    -412
    -413        if not table_name:
    -414            sources_without_schema = tuple(
    -415                source
    -416                for source, columns in self._get_all_source_columns().items()
    -417                if not columns or "*" in columns
    -418            )
    -419            if len(sources_without_schema) == 1:
    -420                table_name = sources_without_schema[0]
    -421
    -422        if table_name not in self.scope.selected_sources:
    -423            return exp.to_identifier(table_name)
    -424
    -425        node, _ = self.scope.selected_sources.get(table_name)
    -426
    -427        if isinstance(node, exp.Subqueryable):
    -428            while node and node.alias != table_name:
    -429                node = node.parent
    +            
    389class Resolver:
    +390    """
    +391    Helper for resolving columns.
    +392
    +393    This is a class so we can lazily load some things and easily share them across functions.
    +394    """
    +395
    +396    def __init__(self, scope, schema):
    +397        self.scope = scope
    +398        self.schema = schema
    +399        self._source_columns = None
    +400        self._unambiguous_columns = None
    +401        self._all_columns = None
    +402
    +403    def get_table(self, column_name: str) -> t.Optional[exp.Identifier]:
    +404        """
    +405        Get the table for a column name.
    +406
    +407        Args:
    +408            column_name: The column name to find the table for.
    +409        Returns:
    +410            The table name if it can be found/inferred.
    +411        """
    +412        if self._unambiguous_columns is None:
    +413            self._unambiguous_columns = self._get_unambiguous_columns(
    +414                self._get_all_source_columns()
    +415            )
    +416
    +417        table_name = self._unambiguous_columns.get(column_name)
    +418
    +419        if not table_name:
    +420            sources_without_schema = tuple(
    +421                source
    +422                for source, columns in self._get_all_source_columns().items()
    +423                if not columns or "*" in columns
    +424            )
    +425            if len(sources_without_schema) == 1:
    +426                table_name = sources_without_schema[0]
    +427
    +428        if table_name not in self.scope.selected_sources:
    +429            return exp.to_identifier(table_name)
     430
    -431        node_alias = node.args.get("alias")
    -432        if node_alias:
    -433            return node_alias.this
    -434
    -435        return exp.to_identifier(
    -436            table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None
    -437        )
    -438
    -439    @property
    -440    def all_columns(self):
    -441        """All available columns of all sources in this scope"""
    -442        if self._all_columns is None:
    -443            self._all_columns = {
    -444                column for columns in self._get_all_source_columns().values() for column in columns
    -445            }
    -446        return self._all_columns
    -447
    -448    def get_source_columns(self, name, only_visible=False):
    -449        """Resolve the source columns for a given source `name`"""
    -450        if name not in self.scope.sources:
    -451            raise OptimizeError(f"Unknown table: {name}")
    -452
    -453        source = self.scope.sources[name]
    -454
    -455        # If referencing a table, return the columns from the schema
    -456        if isinstance(source, exp.Table):
    -457            return self.schema.column_names(source, only_visible)
    +431        node, _ = self.scope.selected_sources.get(table_name)
    +432
    +433        if isinstance(node, exp.Subqueryable):
    +434            while node and node.alias != table_name:
    +435                node = node.parent
    +436
    +437        node_alias = node.args.get("alias")
    +438        if node_alias:
    +439            return node_alias.this
    +440
    +441        return exp.to_identifier(
    +442            table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None
    +443        )
    +444
    +445    @property
    +446    def all_columns(self):
    +447        """All available columns of all sources in this scope"""
    +448        if self._all_columns is None:
    +449            self._all_columns = {
    +450                column for columns in self._get_all_source_columns().values() for column in columns
    +451            }
    +452        return self._all_columns
    +453
    +454    def get_source_columns(self, name, only_visible=False):
    +455        """Resolve the source columns for a given source `name`"""
    +456        if name not in self.scope.sources:
    +457            raise OptimizeError(f"Unknown table: {name}")
     458
    -459        if isinstance(source, Scope) and isinstance(source.expression, exp.Values):
    -460            return source.expression.alias_column_names
    -461
    -462        # Otherwise, if referencing another scope, return that scope's named selects
    -463        return source.expression.named_selects
    +459        source = self.scope.sources[name]
    +460
    +461        # If referencing a table, return the columns from the schema
    +462        if isinstance(source, exp.Table):
    +463            return self.schema.column_names(source, only_visible)
     464
    -465    def _get_all_source_columns(self):
    -466        if self._source_columns is None:
    -467            self._source_columns = {
    -468                k: self.get_source_columns(k)
    -469                for k in itertools.chain(self.scope.selected_sources, self.scope.lateral_sources)
    -470            }
    -471        return self._source_columns
    -472
    -473    def _get_unambiguous_columns(self, source_columns):
    -474        """
    -475        Find all the unambiguous columns in sources.
    -476
    -477        Args:
    -478            source_columns (dict): Mapping of names to source columns
    -479        Returns:
    -480            dict: Mapping of column name to source name
    -481        """
    -482        if not source_columns:
    -483            return {}
    -484
    -485        source_columns = list(source_columns.items())
    -486
    -487        first_table, first_columns = source_columns[0]
    -488        unambiguous_columns = {col: first_table for col in self._find_unique_columns(first_columns)}
    -489        all_columns = set(unambiguous_columns)
    +465        if isinstance(source, Scope) and isinstance(source.expression, exp.Values):
    +466            return source.expression.alias_column_names
    +467
    +468        # Otherwise, if referencing another scope, return that scope's named selects
    +469        return source.expression.named_selects
    +470
    +471    def _get_all_source_columns(self):
    +472        if self._source_columns is None:
    +473            self._source_columns = {
    +474                k: self.get_source_columns(k)
    +475                for k in itertools.chain(self.scope.selected_sources, self.scope.lateral_sources)
    +476            }
    +477        return self._source_columns
    +478
    +479    def _get_unambiguous_columns(self, source_columns):
    +480        """
    +481        Find all the unambiguous columns in sources.
    +482
    +483        Args:
    +484            source_columns (dict): Mapping of names to source columns
    +485        Returns:
    +486            dict: Mapping of column name to source name
    +487        """
    +488        if not source_columns:
    +489            return {}
     490
    -491        for table, columns in source_columns[1:]:
    -492            unique = self._find_unique_columns(columns)
    -493            ambiguous = set(all_columns).intersection(unique)
    -494            all_columns.update(columns)
    -495            for column in ambiguous:
    -496                unambiguous_columns.pop(column, None)
    -497            for column in unique.difference(ambiguous):
    -498                unambiguous_columns[column] = table
    -499
    -500        return unambiguous_columns
    -501
    -502    @staticmethod
    -503    def _find_unique_columns(columns):
    -504        """
    -505        Find the unique columns in a list of columns.
    -506
    -507        Example:
    -508            >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))
    -509            ['a', 'c']
    -510
    -511        This is necessary because duplicate column names are ambiguous.
    -512        """
    -513        counts = {}
    -514        for column in columns:
    -515            counts[column] = counts.get(column, 0) + 1
    -516        return {column for column, count in counts.items() if count == 1}
    +491        source_columns = list(source_columns.items())
    +492
    +493        first_table, first_columns = source_columns[0]
    +494        unambiguous_columns = {col: first_table for col in self._find_unique_columns(first_columns)}
    +495        all_columns = set(unambiguous_columns)
    +496
    +497        for table, columns in source_columns[1:]:
    +498            unique = self._find_unique_columns(columns)
    +499            ambiguous = set(all_columns).intersection(unique)
    +500            all_columns.update(columns)
    +501            for column in ambiguous:
    +502                unambiguous_columns.pop(column, None)
    +503            for column in unique.difference(ambiguous):
    +504                unambiguous_columns[column] = table
    +505
    +506        return unambiguous_columns
    +507
    +508    @staticmethod
    +509    def _find_unique_columns(columns):
    +510        """
    +511        Find the unique columns in a list of columns.
    +512
    +513        Example:
    +514            >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))
    +515            ['a', 'c']
    +516
    +517        This is necessary because duplicate column names are ambiguous.
    +518        """
    +519        counts = {}
    +520        for column in columns:
    +521            counts[column] = counts.get(column, 0) + 1
    +522        return {column for column, count in counts.items() if count == 1}
     
    @@ -870,12 +876,12 @@
    -
    390    def __init__(self, scope, schema):
    -391        self.scope = scope
    -392        self.schema = schema
    -393        self._source_columns = None
    -394        self._unambiguous_columns = None
    -395        self._all_columns = None
    +            
    396    def __init__(self, scope, schema):
    +397        self.scope = scope
    +398        self.schema = schema
    +399        self._source_columns = None
    +400        self._unambiguous_columns = None
    +401        self._all_columns = None
     
    @@ -893,47 +899,47 @@
    -
    397    def get_table(self, column_name: str) -> t.Optional[exp.Identifier]:
    -398        """
    -399        Get the table for a column name.
    -400
    -401        Args:
    -402            column_name: The column name to find the table for.
    -403        Returns:
    -404            The table name if it can be found/inferred.
    -405        """
    -406        if self._unambiguous_columns is None:
    -407            self._unambiguous_columns = self._get_unambiguous_columns(
    -408                self._get_all_source_columns()
    -409            )
    -410
    -411        table_name = self._unambiguous_columns.get(column_name)
    -412
    -413        if not table_name:
    -414            sources_without_schema = tuple(
    -415                source
    -416                for source, columns in self._get_all_source_columns().items()
    -417                if not columns or "*" in columns
    -418            )
    -419            if len(sources_without_schema) == 1:
    -420                table_name = sources_without_schema[0]
    -421
    -422        if table_name not in self.scope.selected_sources:
    -423            return exp.to_identifier(table_name)
    -424
    -425        node, _ = self.scope.selected_sources.get(table_name)
    -426
    -427        if isinstance(node, exp.Subqueryable):
    -428            while node and node.alias != table_name:
    -429                node = node.parent
    +            
    403    def get_table(self, column_name: str) -> t.Optional[exp.Identifier]:
    +404        """
    +405        Get the table for a column name.
    +406
    +407        Args:
    +408            column_name: The column name to find the table for.
    +409        Returns:
    +410            The table name if it can be found/inferred.
    +411        """
    +412        if self._unambiguous_columns is None:
    +413            self._unambiguous_columns = self._get_unambiguous_columns(
    +414                self._get_all_source_columns()
    +415            )
    +416
    +417        table_name = self._unambiguous_columns.get(column_name)
    +418
    +419        if not table_name:
    +420            sources_without_schema = tuple(
    +421                source
    +422                for source, columns in self._get_all_source_columns().items()
    +423                if not columns or "*" in columns
    +424            )
    +425            if len(sources_without_schema) == 1:
    +426                table_name = sources_without_schema[0]
    +427
    +428        if table_name not in self.scope.selected_sources:
    +429            return exp.to_identifier(table_name)
     430
    -431        node_alias = node.args.get("alias")
    -432        if node_alias:
    -433            return node_alias.this
    -434
    -435        return exp.to_identifier(
    -436            table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None
    -437        )
    +431        node, _ = self.scope.selected_sources.get(table_name)
    +432
    +433        if isinstance(node, exp.Subqueryable):
    +434            while node and node.alias != table_name:
    +435                node = node.parent
    +436
    +437        node_alias = node.args.get("alias")
    +438        if node_alias:
    +439            return node_alias.this
    +440
    +441        return exp.to_identifier(
    +442            table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None
    +443        )
     
    @@ -978,22 +984,22 @@
    -
    448    def get_source_columns(self, name, only_visible=False):
    -449        """Resolve the source columns for a given source `name`"""
    -450        if name not in self.scope.sources:
    -451            raise OptimizeError(f"Unknown table: {name}")
    -452
    -453        source = self.scope.sources[name]
    -454
    -455        # If referencing a table, return the columns from the schema
    -456        if isinstance(source, exp.Table):
    -457            return self.schema.column_names(source, only_visible)
    +            
    454    def get_source_columns(self, name, only_visible=False):
    +455        """Resolve the source columns for a given source `name`"""
    +456        if name not in self.scope.sources:
    +457            raise OptimizeError(f"Unknown table: {name}")
     458
    -459        if isinstance(source, Scope) and isinstance(source.expression, exp.Values):
    -460            return source.expression.alias_column_names
    -461
    -462        # Otherwise, if referencing another scope, return that scope's named selects
    -463        return source.expression.named_selects
    +459        source = self.scope.sources[name]
    +460
    +461        # If referencing a table, return the columns from the schema
    +462        if isinstance(source, exp.Table):
    +463            return self.schema.column_names(source, only_visible)
    +464
    +465        if isinstance(source, Scope) and isinstance(source.expression, exp.Values):
    +466            return source.expression.alias_column_names
    +467
    +468        # Otherwise, if referencing another scope, return that scope's named selects
    +469        return source.expression.named_selects
     
    diff --git a/docs/sqlglot/optimizer/qualify_tables.html b/docs/sqlglot/optimizer/qualify_tables.html index 085a10d..5813fdf 100644 --- a/docs/sqlglot/optimizer/qualify_tables.html +++ b/docs/sqlglot/optimizer/qualify_tables.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.qualify_tables API documentation diff --git a/docs/sqlglot/optimizer/scope.html b/docs/sqlglot/optimizer/scope.html index 05fcece..43c2d62 100644 --- a/docs/sqlglot/optimizer/scope.html +++ b/docs/sqlglot/optimizer/scope.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.scope API documentation diff --git a/docs/sqlglot/optimizer/simplify.html b/docs/sqlglot/optimizer/simplify.html index a282a52..745e320 100644 --- a/docs/sqlglot/optimizer/simplify.html +++ b/docs/sqlglot/optimizer/simplify.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.simplify API documentation @@ -471,7 +471,7 @@
    356 if boolean: 357 return boolean 358 elif a.is_string and b.is_string: -359 boolean = eval_boolean(expression, a, b) +359 boolean = eval_boolean(expression, a.this, b.this) 360 361 if boolean: 362 return boolean diff --git a/docs/sqlglot/optimizer/unnest_subqueries.html b/docs/sqlglot/optimizer/unnest_subqueries.html index 2f83825..4469e5b 100644 --- a/docs/sqlglot/optimizer/unnest_subqueries.html +++ b/docs/sqlglot/optimizer/unnest_subqueries.html @@ -3,7 +3,7 @@ - + sqlglot.optimizer.unnest_subqueries API documentation diff --git a/docs/sqlglot/parser.html b/docs/sqlglot/parser.html index e5ebe1f..879063e 100644 --- a/docs/sqlglot/parser.html +++ b/docs/sqlglot/parser.html @@ -3,7 +3,7 @@ - + sqlglot.parser API documentation @@ -768,3458 +768,3563 @@ 674 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { 675 "CAST": lambda self: self._parse_cast(self.STRICT_CAST), 676 "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST), - 677 "EXTRACT": lambda self: self._parse_extract(), - 678 "JSON_OBJECT": lambda self: self._parse_json_object(), - 679 "POSITION": lambda self: self._parse_position(), - 680 "STRING_AGG": lambda self: self._parse_string_agg(), - 681 "SUBSTRING": lambda self: self._parse_substring(), - 682 "TRIM": lambda self: self._parse_trim(), - 683 "TRY_CAST": lambda self: self._parse_cast(False), - 684 "TRY_CONVERT": lambda self: self._parse_convert(False), - 685 } - 686 - 687 QUERY_MODIFIER_PARSERS = { - 688 "match": lambda self: self._parse_match_recognize(), - 689 "where": lambda self: self._parse_where(), - 690 "group": lambda self: self._parse_group(), - 691 "having": lambda self: self._parse_having(), - 692 "qualify": lambda self: self._parse_qualify(), - 693 "windows": lambda self: self._parse_window_clause(), - 694 "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute), - 695 "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), - 696 "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), - 697 "order": lambda self: self._parse_order(), - 698 "limit": lambda self: self._parse_limit(), - 699 "offset": lambda self: self._parse_offset(), - 700 "lock": lambda self: self._parse_lock(), - 701 "sample": lambda self: self._parse_table_sample(as_modifier=True), - 702 } - 703 - 704 SET_PARSERS = { - 705 "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"), - 706 "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"), - 707 "SESSION": lambda self: self._parse_set_item_assignment("SESSION"), - 708 "TRANSACTION": lambda self: self._parse_set_transaction(), - 709 } - 710 - 711 SHOW_PARSERS: t.Dict[str, t.Callable] = {} - 712 - 713 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) - 714 - 715 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} - 716 - 717 TRANSACTION_CHARACTERISTICS = { - 718 "ISOLATION LEVEL REPEATABLE READ", - 719 "ISOLATION LEVEL READ COMMITTED", - 720 "ISOLATION LEVEL READ UNCOMMITTED", - 721 "ISOLATION LEVEL SERIALIZABLE", - 722 "READ WRITE", - 723 "READ ONLY", - 724 } - 725 - 726 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} - 727 - 728 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} - 729 - 730 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} - 731 - 732 STRICT_CAST = True - 733 - 734 CONVERT_TYPE_FIRST = False - 735 - 736 __slots__ = ( - 737 "error_level", - 738 "error_message_context", - 739 "sql", - 740 "errors", - 741 "index_offset", - 742 "unnest_column_only", - 743 "alias_post_tablesample", - 744 "max_errors", - 745 "null_ordering", - 746 "_tokens", - 747 "_index", - 748 "_curr", - 749 "_next", - 750 "_prev", - 751 "_prev_comments", - 752 "_show_trie", - 753 "_set_trie", - 754 ) - 755 - 756 def __init__( - 757 self, - 758 error_level: t.Optional[ErrorLevel] = None, - 759 error_message_context: int = 100, - 760 index_offset: int = 0, - 761 unnest_column_only: bool = False, - 762 alias_post_tablesample: bool = False, - 763 max_errors: int = 3, - 764 null_ordering: t.Optional[str] = None, - 765 ): - 766 self.error_level = error_level or ErrorLevel.IMMEDIATE - 767 self.error_message_context = error_message_context - 768 self.index_offset = index_offset - 769 self.unnest_column_only = unnest_column_only - 770 self.alias_post_tablesample = alias_post_tablesample - 771 self.max_errors = max_errors - 772 self.null_ordering = null_ordering - 773 self.reset() - 774 - 775 def reset(self): - 776 self.sql = "" - 777 self.errors = [] - 778 self._tokens = [] - 779 self._index = 0 - 780 self._curr = None - 781 self._next = None - 782 self._prev = None - 783 self._prev_comments = None - 784 - 785 def parse( - 786 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None - 787 ) -> t.List[t.Optional[exp.Expression]]: - 788 """ - 789 Parses a list of tokens and returns a list of syntax trees, one tree - 790 per parsed SQL statement. - 791 - 792 Args: - 793 raw_tokens: the list of tokens. - 794 sql: the original SQL string, used to produce helpful debug messages. - 795 - 796 Returns: - 797 The list of syntax trees. - 798 """ - 799 return self._parse( - 800 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql - 801 ) - 802 - 803 def parse_into( - 804 self, - 805 expression_types: exp.IntoType, - 806 raw_tokens: t.List[Token], - 807 sql: t.Optional[str] = None, - 808 ) -> t.List[t.Optional[exp.Expression]]: - 809 """ - 810 Parses a list of tokens into a given Expression type. If a collection of Expression - 811 types is given instead, this method will try to parse the token list into each one - 812 of them, stopping at the first for which the parsing succeeds. - 813 - 814 Args: - 815 expression_types: the expression type(s) to try and parse the token list into. - 816 raw_tokens: the list of tokens. - 817 sql: the original SQL string, used to produce helpful debug messages. - 818 - 819 Returns: - 820 The target Expression. - 821 """ - 822 errors = [] - 823 for expression_type in ensure_collection(expression_types): - 824 parser = self.EXPRESSION_PARSERS.get(expression_type) - 825 if not parser: - 826 raise TypeError(f"No parser registered for {expression_type}") - 827 try: - 828 return self._parse(parser, raw_tokens, sql) - 829 except ParseError as e: - 830 e.errors[0]["into_expression"] = expression_type - 831 errors.append(e) - 832 raise ParseError( - 833 f"Failed to parse into {expression_types}", - 834 errors=merge_errors(errors), - 835 ) from errors[-1] - 836 - 837 def _parse( - 838 self, - 839 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], - 840 raw_tokens: t.List[Token], - 841 sql: t.Optional[str] = None, - 842 ) -> t.List[t.Optional[exp.Expression]]: - 843 self.reset() - 844 self.sql = sql or "" - 845 total = len(raw_tokens) - 846 chunks: t.List[t.List[Token]] = [[]] - 847 - 848 for i, token in enumerate(raw_tokens): - 849 if token.token_type == TokenType.SEMICOLON: - 850 if i < total - 1: - 851 chunks.append([]) - 852 else: - 853 chunks[-1].append(token) - 854 - 855 expressions = [] - 856 - 857 for tokens in chunks: - 858 self._index = -1 - 859 self._tokens = tokens - 860 self._advance() - 861 - 862 expressions.append(parse_method(self)) - 863 - 864 if self._index < len(self._tokens): - 865 self.raise_error("Invalid expression / Unexpected token") - 866 - 867 self.check_errors() - 868 - 869 return expressions - 870 - 871 def check_errors(self) -> None: - 872 """ - 873 Logs or raises any found errors, depending on the chosen error level setting. - 874 """ - 875 if self.error_level == ErrorLevel.WARN: - 876 for error in self.errors: - 877 logger.error(str(error)) - 878 elif self.error_level == ErrorLevel.RAISE and self.errors: - 879 raise ParseError( - 880 concat_messages(self.errors, self.max_errors), - 881 errors=merge_errors(self.errors), - 882 ) - 883 - 884 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: - 885 """ - 886 Appends an error in the list of recorded errors or raises it, depending on the chosen - 887 error level setting. - 888 """ - 889 token = token or self._curr or self._prev or Token.string("") - 890 start = self._find_token(token) - 891 end = start + len(token.text) - 892 start_context = self.sql[max(start - self.error_message_context, 0) : start] - 893 highlight = self.sql[start:end] - 894 end_context = self.sql[end : end + self.error_message_context] - 895 - 896 error = ParseError.new( - 897 f"{message}. Line {token.line}, Col: {token.col}.\n" - 898 f" {start_context}\033[4m{highlight}\033[0m{end_context}", - 899 description=message, - 900 line=token.line, - 901 col=token.col, - 902 start_context=start_context, - 903 highlight=highlight, - 904 end_context=end_context, - 905 ) - 906 - 907 if self.error_level == ErrorLevel.IMMEDIATE: - 908 raise error - 909 - 910 self.errors.append(error) - 911 - 912 def expression( - 913 self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs - 914 ) -> exp.Expression: - 915 """ - 916 Creates a new, validated Expression. + 677 "DECODE": lambda self: self._parse_decode(), + 678 "EXTRACT": lambda self: self._parse_extract(), + 679 "JSON_OBJECT": lambda self: self._parse_json_object(), + 680 "LOG": lambda self: self._parse_logarithm(), + 681 "MATCH": lambda self: self._parse_match_against(), + 682 "POSITION": lambda self: self._parse_position(), + 683 "STRING_AGG": lambda self: self._parse_string_agg(), + 684 "SUBSTRING": lambda self: self._parse_substring(), + 685 "TRIM": lambda self: self._parse_trim(), + 686 "TRY_CAST": lambda self: self._parse_cast(False), + 687 "TRY_CONVERT": lambda self: self._parse_convert(False), + 688 } + 689 + 690 QUERY_MODIFIER_PARSERS = { + 691 "match": lambda self: self._parse_match_recognize(), + 692 "where": lambda self: self._parse_where(), + 693 "group": lambda self: self._parse_group(), + 694 "having": lambda self: self._parse_having(), + 695 "qualify": lambda self: self._parse_qualify(), + 696 "windows": lambda self: self._parse_window_clause(), + 697 "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute), + 698 "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), + 699 "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), + 700 "order": lambda self: self._parse_order(), + 701 "limit": lambda self: self._parse_limit(), + 702 "offset": lambda self: self._parse_offset(), + 703 "lock": lambda self: self._parse_lock(), + 704 "sample": lambda self: self._parse_table_sample(as_modifier=True), + 705 } + 706 + 707 SET_PARSERS = { + 708 "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"), + 709 "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"), + 710 "SESSION": lambda self: self._parse_set_item_assignment("SESSION"), + 711 "TRANSACTION": lambda self: self._parse_set_transaction(), + 712 } + 713 + 714 SHOW_PARSERS: t.Dict[str, t.Callable] = {} + 715 + 716 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) + 717 + 718 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} + 719 + 720 TRANSACTION_CHARACTERISTICS = { + 721 "ISOLATION LEVEL REPEATABLE READ", + 722 "ISOLATION LEVEL READ COMMITTED", + 723 "ISOLATION LEVEL READ UNCOMMITTED", + 724 "ISOLATION LEVEL SERIALIZABLE", + 725 "READ WRITE", + 726 "READ ONLY", + 727 } + 728 + 729 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} + 730 + 731 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} + 732 + 733 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} + 734 + 735 STRICT_CAST = True + 736 + 737 CONVERT_TYPE_FIRST = False + 738 + 739 LOG_BASE_FIRST = True + 740 LOG_DEFAULTS_TO_LN = False + 741 + 742 __slots__ = ( + 743 "error_level", + 744 "error_message_context", + 745 "sql", + 746 "errors", + 747 "index_offset", + 748 "unnest_column_only", + 749 "alias_post_tablesample", + 750 "max_errors", + 751 "null_ordering", + 752 "_tokens", + 753 "_index", + 754 "_curr", + 755 "_next", + 756 "_prev", + 757 "_prev_comments", + 758 "_show_trie", + 759 "_set_trie", + 760 ) + 761 + 762 def __init__( + 763 self, + 764 error_level: t.Optional[ErrorLevel] = None, + 765 error_message_context: int = 100, + 766 index_offset: int = 0, + 767 unnest_column_only: bool = False, + 768 alias_post_tablesample: bool = False, + 769 max_errors: int = 3, + 770 null_ordering: t.Optional[str] = None, + 771 ): + 772 self.error_level = error_level or ErrorLevel.IMMEDIATE + 773 self.error_message_context = error_message_context + 774 self.index_offset = index_offset + 775 self.unnest_column_only = unnest_column_only + 776 self.alias_post_tablesample = alias_post_tablesample + 777 self.max_errors = max_errors + 778 self.null_ordering = null_ordering + 779 self.reset() + 780 + 781 def reset(self): + 782 self.sql = "" + 783 self.errors = [] + 784 self._tokens = [] + 785 self._index = 0 + 786 self._curr = None + 787 self._next = None + 788 self._prev = None + 789 self._prev_comments = None + 790 + 791 def parse( + 792 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None + 793 ) -> t.List[t.Optional[exp.Expression]]: + 794 """ + 795 Parses a list of tokens and returns a list of syntax trees, one tree + 796 per parsed SQL statement. + 797 + 798 Args: + 799 raw_tokens: the list of tokens. + 800 sql: the original SQL string, used to produce helpful debug messages. + 801 + 802 Returns: + 803 The list of syntax trees. + 804 """ + 805 return self._parse( + 806 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql + 807 ) + 808 + 809 def parse_into( + 810 self, + 811 expression_types: exp.IntoType, + 812 raw_tokens: t.List[Token], + 813 sql: t.Optional[str] = None, + 814 ) -> t.List[t.Optional[exp.Expression]]: + 815 """ + 816 Parses a list of tokens into a given Expression type. If a collection of Expression + 817 types is given instead, this method will try to parse the token list into each one + 818 of them, stopping at the first for which the parsing succeeds. + 819 + 820 Args: + 821 expression_types: the expression type(s) to try and parse the token list into. + 822 raw_tokens: the list of tokens. + 823 sql: the original SQL string, used to produce helpful debug messages. + 824 + 825 Returns: + 826 The target Expression. + 827 """ + 828 errors = [] + 829 for expression_type in ensure_collection(expression_types): + 830 parser = self.EXPRESSION_PARSERS.get(expression_type) + 831 if not parser: + 832 raise TypeError(f"No parser registered for {expression_type}") + 833 try: + 834 return self._parse(parser, raw_tokens, sql) + 835 except ParseError as e: + 836 e.errors[0]["into_expression"] = expression_type + 837 errors.append(e) + 838 raise ParseError( + 839 f"Failed to parse into {expression_types}", + 840 errors=merge_errors(errors), + 841 ) from errors[-1] + 842 + 843 def _parse( + 844 self, + 845 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], + 846 raw_tokens: t.List[Token], + 847 sql: t.Optional[str] = None, + 848 ) -> t.List[t.Optional[exp.Expression]]: + 849 self.reset() + 850 self.sql = sql or "" + 851 total = len(raw_tokens) + 852 chunks: t.List[t.List[Token]] = [[]] + 853 + 854 for i, token in enumerate(raw_tokens): + 855 if token.token_type == TokenType.SEMICOLON: + 856 if i < total - 1: + 857 chunks.append([]) + 858 else: + 859 chunks[-1].append(token) + 860 + 861 expressions = [] + 862 + 863 for tokens in chunks: + 864 self._index = -1 + 865 self._tokens = tokens + 866 self._advance() + 867 + 868 expressions.append(parse_method(self)) + 869 + 870 if self._index < len(self._tokens): + 871 self.raise_error("Invalid expression / Unexpected token") + 872 + 873 self.check_errors() + 874 + 875 return expressions + 876 + 877 def check_errors(self) -> None: + 878 """ + 879 Logs or raises any found errors, depending on the chosen error level setting. + 880 """ + 881 if self.error_level == ErrorLevel.WARN: + 882 for error in self.errors: + 883 logger.error(str(error)) + 884 elif self.error_level == ErrorLevel.RAISE and self.errors: + 885 raise ParseError( + 886 concat_messages(self.errors, self.max_errors), + 887 errors=merge_errors(self.errors), + 888 ) + 889 + 890 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: + 891 """ + 892 Appends an error in the list of recorded errors or raises it, depending on the chosen + 893 error level setting. + 894 """ + 895 token = token or self._curr or self._prev or Token.string("") + 896 start = self._find_token(token) + 897 end = start + len(token.text) + 898 start_context = self.sql[max(start - self.error_message_context, 0) : start] + 899 highlight = self.sql[start:end] + 900 end_context = self.sql[end : end + self.error_message_context] + 901 + 902 error = ParseError.new( + 903 f"{message}. Line {token.line}, Col: {token.col}.\n" + 904 f" {start_context}\033[4m{highlight}\033[0m{end_context}", + 905 description=message, + 906 line=token.line, + 907 col=token.col, + 908 start_context=start_context, + 909 highlight=highlight, + 910 end_context=end_context, + 911 ) + 912 + 913 if self.error_level == ErrorLevel.IMMEDIATE: + 914 raise error + 915 + 916 self.errors.append(error) 917 - 918 Args: - 919 exp_class: the expression class to instantiate. - 920 comments: an optional list of comments to attach to the expression. - 921 kwargs: the arguments to set for the expression along with their respective values. - 922 - 923 Returns: - 924 The target expression. - 925 """ - 926 instance = exp_class(**kwargs) - 927 if self._prev_comments: - 928 instance.comments = self._prev_comments - 929 self._prev_comments = None - 930 if comments: - 931 instance.comments = comments - 932 self.validate_expression(instance) - 933 return instance - 934 - 935 def validate_expression( - 936 self, expression: exp.Expression, args: t.Optional[t.List] = None - 937 ) -> None: - 938 """ - 939 Validates an already instantiated expression, making sure that all its mandatory arguments - 940 are set. - 941 - 942 Args: - 943 expression: the expression to validate. - 944 args: an optional list of items that was used to instantiate the expression, if it's a Func. - 945 """ - 946 if self.error_level == ErrorLevel.IGNORE: - 947 return - 948 - 949 for error_message in expression.error_messages(args): - 950 self.raise_error(error_message) - 951 - 952 def _find_sql(self, start: Token, end: Token) -> str: - 953 return self.sql[self._find_token(start) : self._find_token(end) + len(end.text)] + 918 def expression( + 919 self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs + 920 ) -> exp.Expression: + 921 """ + 922 Creates a new, validated Expression. + 923 + 924 Args: + 925 exp_class: the expression class to instantiate. + 926 comments: an optional list of comments to attach to the expression. + 927 kwargs: the arguments to set for the expression along with their respective values. + 928 + 929 Returns: + 930 The target expression. + 931 """ + 932 instance = exp_class(**kwargs) + 933 if self._prev_comments: + 934 instance.comments = self._prev_comments + 935 self._prev_comments = None + 936 if comments: + 937 instance.comments = comments + 938 self.validate_expression(instance) + 939 return instance + 940 + 941 def validate_expression( + 942 self, expression: exp.Expression, args: t.Optional[t.List] = None + 943 ) -> None: + 944 """ + 945 Validates an already instantiated expression, making sure that all its mandatory arguments + 946 are set. + 947 + 948 Args: + 949 expression: the expression to validate. + 950 args: an optional list of items that was used to instantiate the expression, if it's a Func. + 951 """ + 952 if self.error_level == ErrorLevel.IGNORE: + 953 return 954 - 955 def _find_token(self, token: Token) -> int: - 956 line = 1 - 957 col = 1 - 958 index = 0 - 959 - 960 while line < token.line or col < token.col: - 961 if Tokenizer.WHITE_SPACE.get(self.sql[index]) == TokenType.BREAK: - 962 line += 1 - 963 col = 1 - 964 else: - 965 col += 1 - 966 index += 1 - 967 - 968 return index - 969 - 970 def _advance(self, times: int = 1) -> None: - 971 self._index += times - 972 self._curr = seq_get(self._tokens, self._index) - 973 self._next = seq_get(self._tokens, self._index + 1) - 974 if self._index > 0: - 975 self._prev = self._tokens[self._index - 1] - 976 self._prev_comments = self._prev.comments - 977 else: - 978 self._prev = None - 979 self._prev_comments = None - 980 - 981 def _retreat(self, index: int) -> None: - 982 if index != self._index: - 983 self._advance(index - self._index) - 984 - 985 def _parse_command(self) -> exp.Expression: - 986 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) - 987 - 988 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: - 989 start = self._prev - 990 exists = self._parse_exists() if allow_exists else None - 991 - 992 self._match(TokenType.ON) + 955 for error_message in expression.error_messages(args): + 956 self.raise_error(error_message) + 957 + 958 def _find_sql(self, start: Token, end: Token) -> str: + 959 return self.sql[self._find_token(start) : self._find_token(end) + len(end.text)] + 960 + 961 def _find_token(self, token: Token) -> int: + 962 line = 1 + 963 col = 1 + 964 index = 0 + 965 + 966 while line < token.line or col < token.col: + 967 if Tokenizer.WHITE_SPACE.get(self.sql[index]) == TokenType.BREAK: + 968 line += 1 + 969 col = 1 + 970 else: + 971 col += 1 + 972 index += 1 + 973 + 974 return index + 975 + 976 def _advance(self, times: int = 1) -> None: + 977 self._index += times + 978 self._curr = seq_get(self._tokens, self._index) + 979 self._next = seq_get(self._tokens, self._index + 1) + 980 if self._index > 0: + 981 self._prev = self._tokens[self._index - 1] + 982 self._prev_comments = self._prev.comments + 983 else: + 984 self._prev = None + 985 self._prev_comments = None + 986 + 987 def _retreat(self, index: int) -> None: + 988 if index != self._index: + 989 self._advance(index - self._index) + 990 + 991 def _parse_command(self) -> exp.Expression: + 992 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) 993 - 994 kind = self._match_set(self.CREATABLES) and self._prev - 995 - 996 if not kind: - 997 return self._parse_as_command(start) - 998 - 999 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): -1000 this = self._parse_user_defined_function(kind=kind.token_type) -1001 elif kind.token_type == TokenType.TABLE: -1002 this = self._parse_table() -1003 elif kind.token_type == TokenType.COLUMN: -1004 this = self._parse_column() -1005 else: -1006 this = self._parse_id_var() -1007 -1008 self._match(TokenType.IS) -1009 -1010 return self.expression( -1011 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists -1012 ) + 994 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: + 995 start = self._prev + 996 exists = self._parse_exists() if allow_exists else None + 997 + 998 self._match(TokenType.ON) + 999 +1000 kind = self._match_set(self.CREATABLES) and self._prev +1001 +1002 if not kind: +1003 return self._parse_as_command(start) +1004 +1005 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): +1006 this = self._parse_user_defined_function(kind=kind.token_type) +1007 elif kind.token_type == TokenType.TABLE: +1008 this = self._parse_table() +1009 elif kind.token_type == TokenType.COLUMN: +1010 this = self._parse_column() +1011 else: +1012 this = self._parse_id_var() 1013 -1014 def _parse_statement(self) -> t.Optional[exp.Expression]: -1015 if self._curr is None: -1016 return None -1017 -1018 if self._match_set(self.STATEMENT_PARSERS): -1019 return self.STATEMENT_PARSERS[self._prev.token_type](self) -1020 -1021 if self._match_set(Tokenizer.COMMANDS): -1022 return self._parse_command() +1014 self._match(TokenType.IS) +1015 +1016 return self.expression( +1017 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists +1018 ) +1019 +1020 def _parse_statement(self) -> t.Optional[exp.Expression]: +1021 if self._curr is None: +1022 return None 1023 -1024 expression = self._parse_expression() -1025 expression = self._parse_set_operations(expression) if expression else self._parse_select() +1024 if self._match_set(self.STATEMENT_PARSERS): +1025 return self.STATEMENT_PARSERS[self._prev.token_type](self) 1026 -1027 self._parse_query_modifiers(expression) -1028 return expression +1027 if self._match_set(Tokenizer.COMMANDS): +1028 return self._parse_command() 1029 -1030 def _parse_drop(self, default_kind: t.Optional[str] = None) -> t.Optional[exp.Expression]: -1031 start = self._prev -1032 temporary = self._match(TokenType.TEMPORARY) -1033 materialized = self._match(TokenType.MATERIALIZED) -1034 kind = self._match_set(self.CREATABLES) and self._prev.text -1035 if not kind: -1036 if default_kind: -1037 kind = default_kind -1038 else: -1039 return self._parse_as_command(start) -1040 -1041 return self.expression( -1042 exp.Drop, -1043 exists=self._parse_exists(), -1044 this=self._parse_table(schema=True), -1045 kind=kind, -1046 temporary=temporary, -1047 materialized=materialized, -1048 cascade=self._match(TokenType.CASCADE), -1049 ) -1050 -1051 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: -1052 return ( -1053 self._match(TokenType.IF) -1054 and (not not_ or self._match(TokenType.NOT)) -1055 and self._match(TokenType.EXISTS) +1030 expression = self._parse_expression() +1031 expression = self._parse_set_operations(expression) if expression else self._parse_select() +1032 +1033 self._parse_query_modifiers(expression) +1034 return expression +1035 +1036 def _parse_drop(self, default_kind: t.Optional[str] = None) -> t.Optional[exp.Expression]: +1037 start = self._prev +1038 temporary = self._match(TokenType.TEMPORARY) +1039 materialized = self._match(TokenType.MATERIALIZED) +1040 kind = self._match_set(self.CREATABLES) and self._prev.text +1041 if not kind: +1042 if default_kind: +1043 kind = default_kind +1044 else: +1045 return self._parse_as_command(start) +1046 +1047 return self.expression( +1048 exp.Drop, +1049 exists=self._parse_exists(), +1050 this=self._parse_table(schema=True), +1051 kind=kind, +1052 temporary=temporary, +1053 materialized=materialized, +1054 cascade=self._match(TokenType.CASCADE), +1055 constraints=self._match_text_seq("CONSTRAINTS"), 1056 ) 1057 -1058 def _parse_create(self) -> t.Optional[exp.Expression]: -1059 start = self._prev -1060 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( -1061 TokenType.OR, TokenType.REPLACE -1062 ) -1063 unique = self._match(TokenType.UNIQUE) -1064 volatile = self._match(TokenType.VOLATILE) -1065 -1066 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): -1067 self._match(TokenType.TABLE) -1068 -1069 properties = None -1070 create_token = self._match_set(self.CREATABLES) and self._prev -1071 -1072 if not create_token: -1073 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE -1074 create_token = self._match_set(self.CREATABLES) and self._prev +1058 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: +1059 return ( +1060 self._match(TokenType.IF) +1061 and (not not_ or self._match(TokenType.NOT)) +1062 and self._match(TokenType.EXISTS) +1063 ) +1064 +1065 def _parse_create(self) -> t.Optional[exp.Expression]: +1066 start = self._prev +1067 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( +1068 TokenType.OR, TokenType.REPLACE +1069 ) +1070 unique = self._match(TokenType.UNIQUE) +1071 volatile = self._match(TokenType.VOLATILE) +1072 +1073 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): +1074 self._match(TokenType.TABLE) 1075 -1076 if not properties or not create_token: -1077 return self._parse_as_command(start) +1076 properties = None +1077 create_token = self._match_set(self.CREATABLES) and self._prev 1078 -1079 exists = self._parse_exists(not_=True) -1080 this = None -1081 expression = None -1082 indexes = None -1083 no_schema_binding = None -1084 begin = None +1079 if not create_token: +1080 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE +1081 create_token = self._match_set(self.CREATABLES) and self._prev +1082 +1083 if not properties or not create_token: +1084 return self._parse_as_command(start) 1085 -1086 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): -1087 this = self._parse_user_defined_function(kind=create_token.token_type) -1088 temp_properties = self._parse_properties() -1089 if properties and temp_properties: -1090 properties.expressions.extend(temp_properties.expressions) -1091 elif temp_properties: -1092 properties = temp_properties -1093 -1094 self._match(TokenType.ALIAS) -1095 begin = self._match(TokenType.BEGIN) -1096 return_ = self._match_text_seq("RETURN") -1097 expression = self._parse_statement() -1098 -1099 if return_: -1100 expression = self.expression(exp.Return, this=expression) -1101 elif create_token.token_type == TokenType.INDEX: -1102 this = self._parse_index() -1103 elif create_token.token_type in self.DB_CREATABLES: -1104 table_parts = self._parse_table_parts(schema=True) +1086 exists = self._parse_exists(not_=True) +1087 this = None +1088 expression = None +1089 indexes = None +1090 no_schema_binding = None +1091 begin = None +1092 +1093 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): +1094 this = self._parse_user_defined_function(kind=create_token.token_type) +1095 temp_properties = self._parse_properties() +1096 if properties and temp_properties: +1097 properties.expressions.extend(temp_properties.expressions) +1098 elif temp_properties: +1099 properties = temp_properties +1100 +1101 self._match(TokenType.ALIAS) +1102 begin = self._match(TokenType.BEGIN) +1103 return_ = self._match_text_seq("RETURN") +1104 expression = self._parse_statement() 1105 -1106 # exp.Properties.Location.POST_NAME -1107 if self._match(TokenType.COMMA): -1108 temp_properties = self._parse_properties(before=True) -1109 if properties and temp_properties: -1110 properties.expressions.extend(temp_properties.expressions) -1111 elif temp_properties: -1112 properties = temp_properties -1113 -1114 this = self._parse_schema(this=table_parts) -1115 -1116 # exp.Properties.Location.POST_SCHEMA and POST_WITH -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 +1106 if return_: +1107 expression = self.expression(exp.Return, this=expression) +1108 elif create_token.token_type == TokenType.INDEX: +1109 this = self._parse_index() +1110 elif create_token.token_type in self.DB_CREATABLES: +1111 table_parts = self._parse_table_parts(schema=True) +1112 +1113 # exp.Properties.Location.POST_NAME +1114 if self._match(TokenType.COMMA): +1115 temp_properties = self._parse_properties(before=True) +1116 if properties and temp_properties: +1117 properties.expressions.extend(temp_properties.expressions) +1118 elif temp_properties: +1119 properties = temp_properties +1120 +1121 this = self._parse_schema(this=table_parts) 1122 -1123 self._match(TokenType.ALIAS) -1124 -1125 # exp.Properties.Location.POST_ALIAS -1126 if not ( -1127 self._match(TokenType.SELECT, advance=False) -1128 or self._match(TokenType.WITH, advance=False) -1129 or self._match(TokenType.L_PAREN, advance=False) -1130 ): -1131 temp_properties = self._parse_properties() -1132 if properties and temp_properties: -1133 properties.expressions.extend(temp_properties.expressions) -1134 elif temp_properties: -1135 properties = temp_properties -1136 -1137 expression = self._parse_ddl_select() -1138 -1139 if create_token.token_type == TokenType.TABLE: -1140 # exp.Properties.Location.POST_EXPRESSION -1141 temp_properties = self._parse_properties() -1142 if properties and temp_properties: -1143 properties.expressions.extend(temp_properties.expressions) -1144 elif temp_properties: -1145 properties = temp_properties -1146 -1147 indexes = [] -1148 while True: -1149 index = self._parse_create_table_index() -1150 -1151 # exp.Properties.Location.POST_INDEX -1152 if self._match(TokenType.PARTITION_BY, advance=False): -1153 temp_properties = self._parse_properties() -1154 if properties and temp_properties: -1155 properties.expressions.extend(temp_properties.expressions) -1156 elif temp_properties: -1157 properties = temp_properties -1158 -1159 if not index: -1160 break -1161 else: -1162 indexes.append(index) -1163 elif create_token.token_type == TokenType.VIEW: -1164 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): -1165 no_schema_binding = True -1166 -1167 return self.expression( -1168 exp.Create, -1169 this=this, -1170 kind=create_token.text, -1171 replace=replace, -1172 unique=unique, -1173 volatile=volatile, -1174 expression=expression, -1175 exists=exists, -1176 properties=properties, -1177 indexes=indexes, -1178 no_schema_binding=no_schema_binding, -1179 begin=begin, -1180 ) -1181 -1182 def _parse_property_before(self) -> t.Optional[exp.Expression]: -1183 self._match(TokenType.COMMA) -1184 -1185 # parsers look to _prev for no/dual/default, so need to consume first -1186 self._match_text_seq("NO") -1187 self._match_text_seq("DUAL") -1188 self._match_text_seq("DEFAULT") -1189 -1190 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): -1191 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) -1192 -1193 return None -1194 -1195 def _parse_property(self) -> t.Optional[exp.Expression]: -1196 if self._match_texts(self.PROPERTY_PARSERS): -1197 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) -1198 -1199 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): -1200 return self._parse_character_set(default=True) +1123 # exp.Properties.Location.POST_SCHEMA and POST_WITH +1124 temp_properties = self._parse_properties() +1125 if properties and temp_properties: +1126 properties.expressions.extend(temp_properties.expressions) +1127 elif temp_properties: +1128 properties = temp_properties +1129 +1130 self._match(TokenType.ALIAS) +1131 +1132 # exp.Properties.Location.POST_ALIAS +1133 if not ( +1134 self._match(TokenType.SELECT, advance=False) +1135 or self._match(TokenType.WITH, advance=False) +1136 or self._match(TokenType.L_PAREN, advance=False) +1137 ): +1138 temp_properties = self._parse_properties() +1139 if properties and temp_properties: +1140 properties.expressions.extend(temp_properties.expressions) +1141 elif temp_properties: +1142 properties = temp_properties +1143 +1144 expression = self._parse_ddl_select() +1145 +1146 if create_token.token_type == TokenType.TABLE: +1147 # exp.Properties.Location.POST_EXPRESSION +1148 temp_properties = self._parse_properties() +1149 if properties and temp_properties: +1150 properties.expressions.extend(temp_properties.expressions) +1151 elif temp_properties: +1152 properties = temp_properties +1153 +1154 indexes = [] +1155 while True: +1156 index = self._parse_create_table_index() +1157 +1158 # exp.Properties.Location.POST_INDEX +1159 if self._match(TokenType.PARTITION_BY, advance=False): +1160 temp_properties = self._parse_properties() +1161 if properties and temp_properties: +1162 properties.expressions.extend(temp_properties.expressions) +1163 elif temp_properties: +1164 properties = temp_properties +1165 +1166 if not index: +1167 break +1168 else: +1169 indexes.append(index) +1170 elif create_token.token_type == TokenType.VIEW: +1171 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): +1172 no_schema_binding = True +1173 +1174 return self.expression( +1175 exp.Create, +1176 this=this, +1177 kind=create_token.text, +1178 replace=replace, +1179 unique=unique, +1180 volatile=volatile, +1181 expression=expression, +1182 exists=exists, +1183 properties=properties, +1184 indexes=indexes, +1185 no_schema_binding=no_schema_binding, +1186 begin=begin, +1187 ) +1188 +1189 def _parse_property_before(self) -> t.Optional[exp.Expression]: +1190 self._match(TokenType.COMMA) +1191 +1192 # parsers look to _prev for no/dual/default, so need to consume first +1193 self._match_text_seq("NO") +1194 self._match_text_seq("DUAL") +1195 self._match_text_seq("DEFAULT") +1196 +1197 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): +1198 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) +1199 +1200 return None 1201 -1202 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): -1203 return self._parse_sortkey(compound=True) -1204 -1205 if self._match_text_seq("SQL", "SECURITY"): -1206 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) -1207 -1208 assignment = self._match_pair( -1209 TokenType.VAR, TokenType.EQ, advance=False -1210 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) +1202 def _parse_property(self) -> t.Optional[exp.Expression]: +1203 if self._match_texts(self.PROPERTY_PARSERS): +1204 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) +1205 +1206 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): +1207 return self._parse_character_set(default=True) +1208 +1209 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): +1210 return self._parse_sortkey(compound=True) 1211 -1212 if assignment: -1213 key = self._parse_var_or_string() -1214 self._match(TokenType.EQ) -1215 return self.expression(exp.Property, this=key, value=self._parse_column()) -1216 -1217 return None +1212 if self._match_text_seq("SQL", "SECURITY"): +1213 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) +1214 +1215 assignment = self._match_pair( +1216 TokenType.VAR, TokenType.EQ, advance=False +1217 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) 1218 -1219 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: -1220 self._match(TokenType.EQ) -1221 self._match(TokenType.ALIAS) -1222 return self.expression( -1223 exp_class, -1224 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), -1225 ) -1226 -1227 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: -1228 properties = [] -1229 -1230 while True: -1231 if before: -1232 identified_property = self._parse_property_before() -1233 else: -1234 identified_property = self._parse_property() -1235 -1236 if not identified_property: -1237 break -1238 for p in ensure_list(identified_property): -1239 properties.append(p) -1240 -1241 if properties: -1242 return self.expression(exp.Properties, expressions=properties) -1243 -1244 return None -1245 -1246 def _parse_fallback(self, no=False) -> exp.Expression: -1247 self._match_text_seq("FALLBACK") -1248 return self.expression( -1249 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") -1250 ) -1251 -1252 def _parse_with_property( -1253 self, -1254 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: -1255 self._match(TokenType.WITH) -1256 if self._match(TokenType.L_PAREN, advance=False): -1257 return self._parse_wrapped_csv(self._parse_property) +1219 if assignment: +1220 key = self._parse_var_or_string() +1221 self._match(TokenType.EQ) +1222 return self.expression(exp.Property, this=key, value=self._parse_column()) +1223 +1224 return None +1225 +1226 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: +1227 self._match(TokenType.EQ) +1228 self._match(TokenType.ALIAS) +1229 return self.expression( +1230 exp_class, +1231 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), +1232 ) +1233 +1234 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: +1235 properties = [] +1236 +1237 while True: +1238 if before: +1239 identified_property = self._parse_property_before() +1240 else: +1241 identified_property = self._parse_property() +1242 +1243 if not identified_property: +1244 break +1245 for p in ensure_list(identified_property): +1246 properties.append(p) +1247 +1248 if properties: +1249 return self.expression(exp.Properties, expressions=properties) +1250 +1251 return None +1252 +1253 def _parse_fallback(self, no=False) -> exp.Expression: +1254 self._match_text_seq("FALLBACK") +1255 return self.expression( +1256 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") +1257 ) 1258 -1259 if self._match_text_seq("JOURNAL"): -1260 return self._parse_withjournaltable() -1261 -1262 if self._match_text_seq("DATA"): -1263 return self._parse_withdata(no=False) -1264 elif self._match_text_seq("NO", "DATA"): -1265 return self._parse_withdata(no=True) -1266 -1267 if not self._next: -1268 return None -1269 -1270 return self._parse_withisolatedloading() -1271 -1272 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html -1273 def _parse_definer(self) -> t.Optional[exp.Expression]: -1274 self._match(TokenType.EQ) -1275 -1276 user = self._parse_id_var() -1277 self._match(TokenType.PARAMETER) -1278 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) -1279 -1280 if not user or not host: -1281 return None +1259 def _parse_with_property( +1260 self, +1261 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: +1262 self._match(TokenType.WITH) +1263 if self._match(TokenType.L_PAREN, advance=False): +1264 return self._parse_wrapped_csv(self._parse_property) +1265 +1266 if self._match_text_seq("JOURNAL"): +1267 return self._parse_withjournaltable() +1268 +1269 if self._match_text_seq("DATA"): +1270 return self._parse_withdata(no=False) +1271 elif self._match_text_seq("NO", "DATA"): +1272 return self._parse_withdata(no=True) +1273 +1274 if not self._next: +1275 return None +1276 +1277 return self._parse_withisolatedloading() +1278 +1279 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html +1280 def _parse_definer(self) -> t.Optional[exp.Expression]: +1281 self._match(TokenType.EQ) 1282 -1283 return exp.DefinerProperty(this=f"{user}@{host}") -1284 -1285 def _parse_withjournaltable(self) -> exp.Expression: -1286 self._match(TokenType.TABLE) -1287 self._match(TokenType.EQ) -1288 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) +1283 user = self._parse_id_var() +1284 self._match(TokenType.PARAMETER) +1285 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) +1286 +1287 if not user or not host: +1288 return None 1289 -1290 def _parse_log(self, no=False) -> exp.Expression: -1291 self._match_text_seq("LOG") -1292 return self.expression(exp.LogProperty, no=no) -1293 -1294 def _parse_journal(self, no=False, dual=False) -> exp.Expression: -1295 before = self._match_text_seq("BEFORE") -1296 self._match_text_seq("JOURNAL") -1297 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) -1298 -1299 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: -1300 self._match_text_seq("NOT") -1301 self._match_text_seq("LOCAL") -1302 self._match_text_seq("AFTER", "JOURNAL") -1303 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) -1304 -1305 def _parse_checksum(self) -> exp.Expression: -1306 self._match_text_seq("CHECKSUM") -1307 self._match(TokenType.EQ) -1308 -1309 on = None -1310 if self._match(TokenType.ON): -1311 on = True -1312 elif self._match_text_seq("OFF"): -1313 on = False -1314 default = self._match(TokenType.DEFAULT) +1290 return exp.DefinerProperty(this=f"{user}@{host}") +1291 +1292 def _parse_withjournaltable(self) -> exp.Expression: +1293 self._match(TokenType.TABLE) +1294 self._match(TokenType.EQ) +1295 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) +1296 +1297 def _parse_log(self, no=False) -> exp.Expression: +1298 self._match_text_seq("LOG") +1299 return self.expression(exp.LogProperty, no=no) +1300 +1301 def _parse_journal(self, no=False, dual=False) -> exp.Expression: +1302 before = self._match_text_seq("BEFORE") +1303 self._match_text_seq("JOURNAL") +1304 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) +1305 +1306 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: +1307 self._match_text_seq("NOT") +1308 self._match_text_seq("LOCAL") +1309 self._match_text_seq("AFTER", "JOURNAL") +1310 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) +1311 +1312 def _parse_checksum(self) -> exp.Expression: +1313 self._match_text_seq("CHECKSUM") +1314 self._match(TokenType.EQ) 1315 -1316 return self.expression( -1317 exp.ChecksumProperty, -1318 on=on, -1319 default=default, -1320 ) -1321 -1322 def _parse_freespace(self) -> exp.Expression: -1323 self._match_text_seq("FREESPACE") -1324 self._match(TokenType.EQ) -1325 return self.expression( -1326 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) +1316 on = None +1317 if self._match(TokenType.ON): +1318 on = True +1319 elif self._match_text_seq("OFF"): +1320 on = False +1321 default = self._match(TokenType.DEFAULT) +1322 +1323 return self.expression( +1324 exp.ChecksumProperty, +1325 on=on, +1326 default=default, 1327 ) 1328 -1329 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: -1330 self._match_text_seq("MERGEBLOCKRATIO") -1331 if self._match(TokenType.EQ): -1332 return self.expression( -1333 exp.MergeBlockRatioProperty, -1334 this=self._parse_number(), -1335 percent=self._match(TokenType.PERCENT), -1336 ) -1337 else: -1338 return self.expression( -1339 exp.MergeBlockRatioProperty, -1340 no=no, -1341 default=default, -1342 ) -1343 -1344 def _parse_datablocksize(self, default=None) -> exp.Expression: -1345 if default: -1346 self._match_text_seq("DATABLOCKSIZE") -1347 return self.expression(exp.DataBlocksizeProperty, default=True) -1348 elif self._match_texts(("MIN", "MINIMUM")): -1349 self._match_text_seq("DATABLOCKSIZE") -1350 return self.expression(exp.DataBlocksizeProperty, min=True) -1351 elif self._match_texts(("MAX", "MAXIMUM")): -1352 self._match_text_seq("DATABLOCKSIZE") -1353 return self.expression(exp.DataBlocksizeProperty, min=False) -1354 -1355 self._match_text_seq("DATABLOCKSIZE") -1356 self._match(TokenType.EQ) -1357 size = self._parse_number() -1358 units = None -1359 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): -1360 units = self._prev.text -1361 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) -1362 -1363 def _parse_blockcompression(self) -> exp.Expression: -1364 self._match_text_seq("BLOCKCOMPRESSION") -1365 self._match(TokenType.EQ) -1366 always = self._match_text_seq("ALWAYS") -1367 manual = self._match_text_seq("MANUAL") -1368 never = self._match_text_seq("NEVER") -1369 default = self._match_text_seq("DEFAULT") -1370 autotemp = None -1371 if self._match_text_seq("AUTOTEMP"): -1372 autotemp = self._parse_schema() -1373 -1374 return self.expression( -1375 exp.BlockCompressionProperty, -1376 always=always, -1377 manual=manual, -1378 never=never, -1379 default=default, -1380 autotemp=autotemp, -1381 ) -1382 -1383 def _parse_withisolatedloading(self) -> exp.Expression: -1384 no = self._match_text_seq("NO") -1385 concurrent = self._match_text_seq("CONCURRENT") -1386 self._match_text_seq("ISOLATED", "LOADING") -1387 for_all = self._match_text_seq("FOR", "ALL") -1388 for_insert = self._match_text_seq("FOR", "INSERT") -1389 for_none = self._match_text_seq("FOR", "NONE") -1390 return self.expression( -1391 exp.IsolatedLoadingProperty, -1392 no=no, -1393 concurrent=concurrent, -1394 for_all=for_all, -1395 for_insert=for_insert, -1396 for_none=for_none, -1397 ) -1398 -1399 def _parse_locking(self) -> exp.Expression: -1400 if self._match(TokenType.TABLE): -1401 kind = "TABLE" -1402 elif self._match(TokenType.VIEW): -1403 kind = "VIEW" -1404 elif self._match(TokenType.ROW): -1405 kind = "ROW" -1406 elif self._match_text_seq("DATABASE"): -1407 kind = "DATABASE" -1408 else: -1409 kind = None -1410 -1411 if kind in ("DATABASE", "TABLE", "VIEW"): -1412 this = self._parse_table_parts() -1413 else: -1414 this = None -1415 -1416 if self._match(TokenType.FOR): -1417 for_or_in = "FOR" -1418 elif self._match(TokenType.IN): -1419 for_or_in = "IN" +1329 def _parse_freespace(self) -> exp.Expression: +1330 self._match_text_seq("FREESPACE") +1331 self._match(TokenType.EQ) +1332 return self.expression( +1333 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) +1334 ) +1335 +1336 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: +1337 self._match_text_seq("MERGEBLOCKRATIO") +1338 if self._match(TokenType.EQ): +1339 return self.expression( +1340 exp.MergeBlockRatioProperty, +1341 this=self._parse_number(), +1342 percent=self._match(TokenType.PERCENT), +1343 ) +1344 else: +1345 return self.expression( +1346 exp.MergeBlockRatioProperty, +1347 no=no, +1348 default=default, +1349 ) +1350 +1351 def _parse_datablocksize(self, default=None) -> exp.Expression: +1352 if default: +1353 self._match_text_seq("DATABLOCKSIZE") +1354 return self.expression(exp.DataBlocksizeProperty, default=True) +1355 elif self._match_texts(("MIN", "MINIMUM")): +1356 self._match_text_seq("DATABLOCKSIZE") +1357 return self.expression(exp.DataBlocksizeProperty, min=True) +1358 elif self._match_texts(("MAX", "MAXIMUM")): +1359 self._match_text_seq("DATABLOCKSIZE") +1360 return self.expression(exp.DataBlocksizeProperty, min=False) +1361 +1362 self._match_text_seq("DATABLOCKSIZE") +1363 self._match(TokenType.EQ) +1364 size = self._parse_number() +1365 units = None +1366 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): +1367 units = self._prev.text +1368 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) +1369 +1370 def _parse_blockcompression(self) -> exp.Expression: +1371 self._match_text_seq("BLOCKCOMPRESSION") +1372 self._match(TokenType.EQ) +1373 always = self._match_text_seq("ALWAYS") +1374 manual = self._match_text_seq("MANUAL") +1375 never = self._match_text_seq("NEVER") +1376 default = self._match_text_seq("DEFAULT") +1377 autotemp = None +1378 if self._match_text_seq("AUTOTEMP"): +1379 autotemp = self._parse_schema() +1380 +1381 return self.expression( +1382 exp.BlockCompressionProperty, +1383 always=always, +1384 manual=manual, +1385 never=never, +1386 default=default, +1387 autotemp=autotemp, +1388 ) +1389 +1390 def _parse_withisolatedloading(self) -> exp.Expression: +1391 no = self._match_text_seq("NO") +1392 concurrent = self._match_text_seq("CONCURRENT") +1393 self._match_text_seq("ISOLATED", "LOADING") +1394 for_all = self._match_text_seq("FOR", "ALL") +1395 for_insert = self._match_text_seq("FOR", "INSERT") +1396 for_none = self._match_text_seq("FOR", "NONE") +1397 return self.expression( +1398 exp.IsolatedLoadingProperty, +1399 no=no, +1400 concurrent=concurrent, +1401 for_all=for_all, +1402 for_insert=for_insert, +1403 for_none=for_none, +1404 ) +1405 +1406 def _parse_locking(self) -> exp.Expression: +1407 if self._match(TokenType.TABLE): +1408 kind = "TABLE" +1409 elif self._match(TokenType.VIEW): +1410 kind = "VIEW" +1411 elif self._match(TokenType.ROW): +1412 kind = "ROW" +1413 elif self._match_text_seq("DATABASE"): +1414 kind = "DATABASE" +1415 else: +1416 kind = None +1417 +1418 if kind in ("DATABASE", "TABLE", "VIEW"): +1419 this = self._parse_table_parts() 1420 else: -1421 for_or_in = None +1421 this = None 1422 -1423 if self._match_text_seq("ACCESS"): -1424 lock_type = "ACCESS" -1425 elif self._match_texts(("EXCL", "EXCLUSIVE")): -1426 lock_type = "EXCLUSIVE" -1427 elif self._match_text_seq("SHARE"): -1428 lock_type = "SHARE" -1429 elif self._match_text_seq("READ"): -1430 lock_type = "READ" -1431 elif self._match_text_seq("WRITE"): -1432 lock_type = "WRITE" -1433 elif self._match_text_seq("CHECKSUM"): -1434 lock_type = "CHECKSUM" -1435 else: -1436 lock_type = None -1437 -1438 override = self._match_text_seq("OVERRIDE") -1439 -1440 return self.expression( -1441 exp.LockingProperty, -1442 this=this, -1443 kind=kind, -1444 for_or_in=for_or_in, -1445 lock_type=lock_type, -1446 override=override, -1447 ) -1448 -1449 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: -1450 if self._match(TokenType.PARTITION_BY): -1451 return self._parse_csv(self._parse_conjunction) -1452 return [] -1453 -1454 def _parse_partitioned_by(self) -> exp.Expression: -1455 self._match(TokenType.EQ) -1456 return self.expression( -1457 exp.PartitionedByProperty, -1458 this=self._parse_schema() or self._parse_bracket(self._parse_field()), -1459 ) +1423 if self._match(TokenType.FOR): +1424 for_or_in = "FOR" +1425 elif self._match(TokenType.IN): +1426 for_or_in = "IN" +1427 else: +1428 for_or_in = None +1429 +1430 if self._match_text_seq("ACCESS"): +1431 lock_type = "ACCESS" +1432 elif self._match_texts(("EXCL", "EXCLUSIVE")): +1433 lock_type = "EXCLUSIVE" +1434 elif self._match_text_seq("SHARE"): +1435 lock_type = "SHARE" +1436 elif self._match_text_seq("READ"): +1437 lock_type = "READ" +1438 elif self._match_text_seq("WRITE"): +1439 lock_type = "WRITE" +1440 elif self._match_text_seq("CHECKSUM"): +1441 lock_type = "CHECKSUM" +1442 else: +1443 lock_type = None +1444 +1445 override = self._match_text_seq("OVERRIDE") +1446 +1447 return self.expression( +1448 exp.LockingProperty, +1449 this=this, +1450 kind=kind, +1451 for_or_in=for_or_in, +1452 lock_type=lock_type, +1453 override=override, +1454 ) +1455 +1456 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: +1457 if self._match(TokenType.PARTITION_BY): +1458 return self._parse_csv(self._parse_conjunction) +1459 return [] 1460 -1461 def _parse_withdata(self, no=False) -> exp.Expression: -1462 if self._match_text_seq("AND", "STATISTICS"): -1463 statistics = True -1464 elif self._match_text_seq("AND", "NO", "STATISTICS"): -1465 statistics = False -1466 else: -1467 statistics = None -1468 -1469 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) -1470 -1471 def _parse_noprimaryindex(self) -> exp.Expression: -1472 self._match_text_seq("PRIMARY", "INDEX") -1473 return exp.NoPrimaryIndexProperty() -1474 -1475 def _parse_oncommit(self) -> exp.Expression: -1476 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") -1477 return exp.OnCommitProperty() -1478 -1479 def _parse_distkey(self) -> exp.Expression: -1480 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) +1461 def _parse_partitioned_by(self) -> exp.Expression: +1462 self._match(TokenType.EQ) +1463 return self.expression( +1464 exp.PartitionedByProperty, +1465 this=self._parse_schema() or self._parse_bracket(self._parse_field()), +1466 ) +1467 +1468 def _parse_withdata(self, no=False) -> exp.Expression: +1469 if self._match_text_seq("AND", "STATISTICS"): +1470 statistics = True +1471 elif self._match_text_seq("AND", "NO", "STATISTICS"): +1472 statistics = False +1473 else: +1474 statistics = None +1475 +1476 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) +1477 +1478 def _parse_noprimaryindex(self) -> exp.Expression: +1479 self._match_text_seq("PRIMARY", "INDEX") +1480 return exp.NoPrimaryIndexProperty() 1481 -1482 def _parse_create_like(self) -> t.Optional[exp.Expression]: -1483 table = self._parse_table(schema=True) -1484 options = [] -1485 while self._match_texts(("INCLUDING", "EXCLUDING")): -1486 this = self._prev.text.upper() -1487 id_var = self._parse_id_var() +1482 def _parse_oncommit(self) -> exp.Expression: +1483 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") +1484 return exp.OnCommitProperty() +1485 +1486 def _parse_distkey(self) -> exp.Expression: +1487 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) 1488 -1489 if not id_var: -1490 return None -1491 -1492 options.append( -1493 self.expression( -1494 exp.Property, -1495 this=this, -1496 value=exp.Var(this=id_var.this.upper()), -1497 ) -1498 ) -1499 return self.expression(exp.LikeProperty, this=table, expressions=options) -1500 -1501 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: -1502 return self.expression( -1503 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound -1504 ) -1505 -1506 def _parse_character_set(self, default: bool = False) -> exp.Expression: -1507 self._match(TokenType.EQ) -1508 return self.expression( -1509 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default -1510 ) -1511 -1512 def _parse_returns(self) -> exp.Expression: -1513 value: t.Optional[exp.Expression] -1514 is_table = self._match(TokenType.TABLE) -1515 -1516 if is_table: -1517 if self._match(TokenType.LT): -1518 value = self.expression( -1519 exp.Schema, -1520 this="TABLE", -1521 expressions=self._parse_csv(self._parse_struct_kwargs), -1522 ) -1523 if not self._match(TokenType.GT): -1524 self.raise_error("Expecting >") -1525 else: -1526 value = self._parse_schema(exp.Var(this="TABLE")) -1527 else: -1528 value = self._parse_types() -1529 -1530 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) -1531 -1532 def _parse_temporary(self, global_=False) -> exp.Expression: -1533 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" -1534 return self.expression(exp.TemporaryProperty, global_=global_) -1535 -1536 def _parse_describe(self) -> exp.Expression: -1537 kind = self._match_set(self.CREATABLES) and self._prev.text -1538 this = self._parse_table() -1539 -1540 return self.expression(exp.Describe, this=this, kind=kind) -1541 -1542 def _parse_insert(self) -> exp.Expression: -1543 overwrite = self._match(TokenType.OVERWRITE) -1544 local = self._match(TokenType.LOCAL) -1545 alternative = None +1489 def _parse_create_like(self) -> t.Optional[exp.Expression]: +1490 table = self._parse_table(schema=True) +1491 options = [] +1492 while self._match_texts(("INCLUDING", "EXCLUDING")): +1493 this = self._prev.text.upper() +1494 id_var = self._parse_id_var() +1495 +1496 if not id_var: +1497 return None +1498 +1499 options.append( +1500 self.expression( +1501 exp.Property, +1502 this=this, +1503 value=exp.Var(this=id_var.this.upper()), +1504 ) +1505 ) +1506 return self.expression(exp.LikeProperty, this=table, expressions=options) +1507 +1508 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: +1509 return self.expression( +1510 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound +1511 ) +1512 +1513 def _parse_character_set(self, default: bool = False) -> exp.Expression: +1514 self._match(TokenType.EQ) +1515 return self.expression( +1516 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default +1517 ) +1518 +1519 def _parse_returns(self) -> exp.Expression: +1520 value: t.Optional[exp.Expression] +1521 is_table = self._match(TokenType.TABLE) +1522 +1523 if is_table: +1524 if self._match(TokenType.LT): +1525 value = self.expression( +1526 exp.Schema, +1527 this="TABLE", +1528 expressions=self._parse_csv(self._parse_struct_kwargs), +1529 ) +1530 if not self._match(TokenType.GT): +1531 self.raise_error("Expecting >") +1532 else: +1533 value = self._parse_schema(exp.Var(this="TABLE")) +1534 else: +1535 value = self._parse_types() +1536 +1537 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) +1538 +1539 def _parse_temporary(self, global_=False) -> exp.Expression: +1540 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" +1541 return self.expression(exp.TemporaryProperty, global_=global_) +1542 +1543 def _parse_describe(self) -> exp.Expression: +1544 kind = self._match_set(self.CREATABLES) and self._prev.text +1545 this = self._parse_table() 1546 -1547 if self._match_text_seq("DIRECTORY"): -1548 this: t.Optional[exp.Expression] = self.expression( -1549 exp.Directory, -1550 this=self._parse_var_or_string(), -1551 local=local, -1552 row_format=self._parse_row_format(match_row=True), -1553 ) -1554 else: -1555 if self._match(TokenType.OR): -1556 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text -1557 -1558 self._match(TokenType.INTO) -1559 self._match(TokenType.TABLE) -1560 this = self._parse_table(schema=True) -1561 -1562 return self.expression( -1563 exp.Insert, -1564 this=this, -1565 exists=self._parse_exists(), -1566 partition=self._parse_partition(), -1567 expression=self._parse_ddl_select(), -1568 returning=self._parse_returning(), -1569 overwrite=overwrite, -1570 alternative=alternative, -1571 ) -1572 -1573 def _parse_returning(self) -> t.Optional[exp.Expression]: -1574 if not self._match(TokenType.RETURNING): -1575 return None -1576 -1577 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) -1578 -1579 def _parse_row(self) -> t.Optional[exp.Expression]: -1580 if not self._match(TokenType.FORMAT): -1581 return None -1582 return self._parse_row_format() +1547 return self.expression(exp.Describe, this=this, kind=kind) +1548 +1549 def _parse_insert(self) -> exp.Expression: +1550 overwrite = self._match(TokenType.OVERWRITE) +1551 local = self._match(TokenType.LOCAL) +1552 alternative = None +1553 +1554 if self._match_text_seq("DIRECTORY"): +1555 this: t.Optional[exp.Expression] = self.expression( +1556 exp.Directory, +1557 this=self._parse_var_or_string(), +1558 local=local, +1559 row_format=self._parse_row_format(match_row=True), +1560 ) +1561 else: +1562 if self._match(TokenType.OR): +1563 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text +1564 +1565 self._match(TokenType.INTO) +1566 self._match(TokenType.TABLE) +1567 this = self._parse_table(schema=True) +1568 +1569 return self.expression( +1570 exp.Insert, +1571 this=this, +1572 exists=self._parse_exists(), +1573 partition=self._parse_partition(), +1574 expression=self._parse_ddl_select(), +1575 returning=self._parse_returning(), +1576 overwrite=overwrite, +1577 alternative=alternative, +1578 ) +1579 +1580 def _parse_returning(self) -> t.Optional[exp.Expression]: +1581 if not self._match(TokenType.RETURNING): +1582 return None 1583 -1584 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: -1585 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): -1586 return None -1587 -1588 if self._match_text_seq("SERDE"): -1589 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) +1584 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) +1585 +1586 def _parse_row(self) -> t.Optional[exp.Expression]: +1587 if not self._match(TokenType.FORMAT): +1588 return None +1589 return self._parse_row_format() 1590 -1591 self._match_text_seq("DELIMITED") -1592 -1593 kwargs = {} +1591 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: +1592 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): +1593 return None 1594 -1595 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): -1596 kwargs["fields"] = self._parse_string() -1597 if self._match_text_seq("ESCAPED", "BY"): -1598 kwargs["escaped"] = self._parse_string() -1599 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): -1600 kwargs["collection_items"] = self._parse_string() -1601 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): -1602 kwargs["map_keys"] = self._parse_string() -1603 if self._match_text_seq("LINES", "TERMINATED", "BY"): -1604 kwargs["lines"] = self._parse_string() -1605 if self._match_text_seq("NULL", "DEFINED", "AS"): -1606 kwargs["null"] = self._parse_string() -1607 -1608 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore -1609 -1610 def _parse_load_data(self) -> exp.Expression: -1611 local = self._match(TokenType.LOCAL) -1612 self._match_text_seq("INPATH") -1613 inpath = self._parse_string() -1614 overwrite = self._match(TokenType.OVERWRITE) -1615 self._match_pair(TokenType.INTO, TokenType.TABLE) +1595 if self._match_text_seq("SERDE"): +1596 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) +1597 +1598 self._match_text_seq("DELIMITED") +1599 +1600 kwargs = {} +1601 +1602 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): +1603 kwargs["fields"] = self._parse_string() +1604 if self._match_text_seq("ESCAPED", "BY"): +1605 kwargs["escaped"] = self._parse_string() +1606 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): +1607 kwargs["collection_items"] = self._parse_string() +1608 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): +1609 kwargs["map_keys"] = self._parse_string() +1610 if self._match_text_seq("LINES", "TERMINATED", "BY"): +1611 kwargs["lines"] = self._parse_string() +1612 if self._match_text_seq("NULL", "DEFINED", "AS"): +1613 kwargs["null"] = self._parse_string() +1614 +1615 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore 1616 -1617 return self.expression( -1618 exp.LoadData, -1619 this=self._parse_table(schema=True), -1620 local=local, -1621 overwrite=overwrite, -1622 inpath=inpath, -1623 partition=self._parse_partition(), -1624 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), -1625 serde=self._match_text_seq("SERDE") and self._parse_string(), -1626 ) -1627 -1628 def _parse_delete(self) -> exp.Expression: -1629 self._match(TokenType.FROM) -1630 -1631 return self.expression( -1632 exp.Delete, -1633 this=self._parse_table(schema=True), -1634 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), -1635 where=self._parse_where(), -1636 returning=self._parse_returning(), -1637 ) -1638 -1639 def _parse_update(self) -> exp.Expression: -1640 return self.expression( -1641 exp.Update, -1642 **{ # type: ignore -1643 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), -1644 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), -1645 "from": self._parse_from(), -1646 "where": self._parse_where(), -1647 "returning": self._parse_returning(), -1648 }, -1649 ) -1650 -1651 def _parse_uncache(self) -> exp.Expression: -1652 if not self._match(TokenType.TABLE): -1653 self.raise_error("Expecting TABLE after UNCACHE") -1654 -1655 return self.expression( -1656 exp.Uncache, -1657 exists=self._parse_exists(), -1658 this=self._parse_table(schema=True), -1659 ) -1660 -1661 def _parse_cache(self) -> exp.Expression: -1662 lazy = self._match(TokenType.LAZY) -1663 self._match(TokenType.TABLE) -1664 table = self._parse_table(schema=True) -1665 options = [] -1666 -1667 if self._match(TokenType.OPTIONS): -1668 self._match_l_paren() -1669 k = self._parse_string() -1670 self._match(TokenType.EQ) -1671 v = self._parse_string() -1672 options = [k, v] -1673 self._match_r_paren() -1674 -1675 self._match(TokenType.ALIAS) -1676 return self.expression( -1677 exp.Cache, -1678 this=table, -1679 lazy=lazy, -1680 options=options, -1681 expression=self._parse_select(nested=True), -1682 ) -1683 -1684 def _parse_partition(self) -> t.Optional[exp.Expression]: -1685 if not self._match(TokenType.PARTITION): -1686 return None -1687 -1688 return self.expression( -1689 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) -1690 ) -1691 -1692 def _parse_value(self) -> exp.Expression: -1693 if self._match(TokenType.L_PAREN): -1694 expressions = self._parse_csv(self._parse_conjunction) -1695 self._match_r_paren() -1696 return self.expression(exp.Tuple, expressions=expressions) -1697 -1698 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. -1699 # Source: https://prestodb.io/docs/current/sql/values.html -1700 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) -1701 -1702 def _parse_select( -1703 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True -1704 ) -> t.Optional[exp.Expression]: -1705 cte = self._parse_with() -1706 if cte: -1707 this = self._parse_statement() +1617 def _parse_load_data(self) -> exp.Expression: +1618 local = self._match(TokenType.LOCAL) +1619 self._match_text_seq("INPATH") +1620 inpath = self._parse_string() +1621 overwrite = self._match(TokenType.OVERWRITE) +1622 self._match_pair(TokenType.INTO, TokenType.TABLE) +1623 +1624 return self.expression( +1625 exp.LoadData, +1626 this=self._parse_table(schema=True), +1627 local=local, +1628 overwrite=overwrite, +1629 inpath=inpath, +1630 partition=self._parse_partition(), +1631 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), +1632 serde=self._match_text_seq("SERDE") and self._parse_string(), +1633 ) +1634 +1635 def _parse_delete(self) -> exp.Expression: +1636 self._match(TokenType.FROM) +1637 +1638 return self.expression( +1639 exp.Delete, +1640 this=self._parse_table(schema=True), +1641 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), +1642 where=self._parse_where(), +1643 returning=self._parse_returning(), +1644 ) +1645 +1646 def _parse_update(self) -> exp.Expression: +1647 return self.expression( +1648 exp.Update, +1649 **{ # type: ignore +1650 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), +1651 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), +1652 "from": self._parse_from(), +1653 "where": self._parse_where(), +1654 "returning": self._parse_returning(), +1655 }, +1656 ) +1657 +1658 def _parse_uncache(self) -> exp.Expression: +1659 if not self._match(TokenType.TABLE): +1660 self.raise_error("Expecting TABLE after UNCACHE") +1661 +1662 return self.expression( +1663 exp.Uncache, +1664 exists=self._parse_exists(), +1665 this=self._parse_table(schema=True), +1666 ) +1667 +1668 def _parse_cache(self) -> exp.Expression: +1669 lazy = self._match(TokenType.LAZY) +1670 self._match(TokenType.TABLE) +1671 table = self._parse_table(schema=True) +1672 options = [] +1673 +1674 if self._match(TokenType.OPTIONS): +1675 self._match_l_paren() +1676 k = self._parse_string() +1677 self._match(TokenType.EQ) +1678 v = self._parse_string() +1679 options = [k, v] +1680 self._match_r_paren() +1681 +1682 self._match(TokenType.ALIAS) +1683 return self.expression( +1684 exp.Cache, +1685 this=table, +1686 lazy=lazy, +1687 options=options, +1688 expression=self._parse_select(nested=True), +1689 ) +1690 +1691 def _parse_partition(self) -> t.Optional[exp.Expression]: +1692 if not self._match(TokenType.PARTITION): +1693 return None +1694 +1695 return self.expression( +1696 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) +1697 ) +1698 +1699 def _parse_value(self) -> exp.Expression: +1700 if self._match(TokenType.L_PAREN): +1701 expressions = self._parse_csv(self._parse_conjunction) +1702 self._match_r_paren() +1703 return self.expression(exp.Tuple, expressions=expressions) +1704 +1705 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. +1706 # Source: https://prestodb.io/docs/current/sql/values.html +1707 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) 1708 -1709 if not this: -1710 self.raise_error("Failed to parse any statement following CTE") -1711 return cte -1712 -1713 if "with" in this.arg_types: -1714 this.set("with", cte) -1715 else: -1716 self.raise_error(f"{this.key} does not support CTE") -1717 this = cte -1718 elif self._match(TokenType.SELECT): -1719 comments = self._prev_comments -1720 -1721 kind = ( -1722 self._match(TokenType.ALIAS) -1723 and self._match_texts(("STRUCT", "VALUE")) -1724 and self._prev.text -1725 ) -1726 hint = self._parse_hint() -1727 all_ = self._match(TokenType.ALL) -1728 distinct = self._match(TokenType.DISTINCT) -1729 -1730 if distinct: -1731 distinct = self.expression( -1732 exp.Distinct, -1733 on=self._parse_value() if self._match(TokenType.ON) else None, -1734 ) -1735 -1736 if all_ and distinct: -1737 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") -1738 -1739 limit = self._parse_limit(top=True) -1740 expressions = self._parse_csv(self._parse_expression) -1741 -1742 this = self.expression( -1743 exp.Select, -1744 kind=kind, -1745 hint=hint, -1746 distinct=distinct, -1747 expressions=expressions, -1748 limit=limit, -1749 ) -1750 this.comments = comments -1751 -1752 into = self._parse_into() -1753 if into: -1754 this.set("into", into) -1755 -1756 from_ = self._parse_from() -1757 if from_: -1758 this.set("from", from_) -1759 -1760 self._parse_query_modifiers(this) -1761 elif (table or nested) and self._match(TokenType.L_PAREN): -1762 this = self._parse_table() if table else self._parse_select(nested=True) -1763 self._parse_query_modifiers(this) -1764 this = self._parse_set_operations(this) -1765 self._match_r_paren() +1709 def _parse_select( +1710 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True +1711 ) -> t.Optional[exp.Expression]: +1712 cte = self._parse_with() +1713 if cte: +1714 this = self._parse_statement() +1715 +1716 if not this: +1717 self.raise_error("Failed to parse any statement following CTE") +1718 return cte +1719 +1720 if "with" in this.arg_types: +1721 this.set("with", cte) +1722 else: +1723 self.raise_error(f"{this.key} does not support CTE") +1724 this = cte +1725 elif self._match(TokenType.SELECT): +1726 comments = self._prev_comments +1727 +1728 kind = ( +1729 self._match(TokenType.ALIAS) +1730 and self._match_texts(("STRUCT", "VALUE")) +1731 and self._prev.text +1732 ) +1733 hint = self._parse_hint() +1734 all_ = self._match(TokenType.ALL) +1735 distinct = self._match(TokenType.DISTINCT) +1736 +1737 if distinct: +1738 distinct = self.expression( +1739 exp.Distinct, +1740 on=self._parse_value() if self._match(TokenType.ON) else None, +1741 ) +1742 +1743 if all_ and distinct: +1744 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") +1745 +1746 limit = self._parse_limit(top=True) +1747 expressions = self._parse_csv(self._parse_expression) +1748 +1749 this = self.expression( +1750 exp.Select, +1751 kind=kind, +1752 hint=hint, +1753 distinct=distinct, +1754 expressions=expressions, +1755 limit=limit, +1756 ) +1757 this.comments = comments +1758 +1759 into = self._parse_into() +1760 if into: +1761 this.set("into", into) +1762 +1763 from_ = self._parse_from() +1764 if from_: +1765 this.set("from", from_) 1766 -1767 # early return so that subquery unions aren't parsed again -1768 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 -1769 # Union ALL should be a property of the top select node, not the subquery -1770 return self._parse_subquery(this, parse_alias=parse_subquery_alias) -1771 elif self._match(TokenType.VALUES): -1772 this = self.expression( -1773 exp.Values, -1774 expressions=self._parse_csv(self._parse_value), -1775 alias=self._parse_table_alias(), -1776 ) -1777 else: -1778 this = None -1779 -1780 return self._parse_set_operations(this) -1781 -1782 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: -1783 if not skip_with_token and not self._match(TokenType.WITH): -1784 return None -1785 -1786 recursive = self._match(TokenType.RECURSIVE) -1787 -1788 expressions = [] -1789 while True: -1790 expressions.append(self._parse_cte()) -1791 -1792 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): -1793 break -1794 else: -1795 self._match(TokenType.WITH) -1796 -1797 return self.expression(exp.With, expressions=expressions, recursive=recursive) +1767 self._parse_query_modifiers(this) +1768 elif (table or nested) and self._match(TokenType.L_PAREN): +1769 this = self._parse_table() if table else self._parse_select(nested=True) +1770 self._parse_query_modifiers(this) +1771 this = self._parse_set_operations(this) +1772 self._match_r_paren() +1773 +1774 # early return so that subquery unions aren't parsed again +1775 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 +1776 # Union ALL should be a property of the top select node, not the subquery +1777 return self._parse_subquery(this, parse_alias=parse_subquery_alias) +1778 elif self._match(TokenType.VALUES): +1779 this = self.expression( +1780 exp.Values, +1781 expressions=self._parse_csv(self._parse_value), +1782 alias=self._parse_table_alias(), +1783 ) +1784 else: +1785 this = None +1786 +1787 return self._parse_set_operations(this) +1788 +1789 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: +1790 if not skip_with_token and not self._match(TokenType.WITH): +1791 return None +1792 +1793 recursive = self._match(TokenType.RECURSIVE) +1794 +1795 expressions = [] +1796 while True: +1797 expressions.append(self._parse_cte()) 1798 -1799 def _parse_cte(self) -> exp.Expression: -1800 alias = self._parse_table_alias() -1801 if not alias or not alias.this: -1802 self.raise_error("Expected CTE to have alias") +1799 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): +1800 break +1801 else: +1802 self._match(TokenType.WITH) 1803 -1804 self._match(TokenType.ALIAS) +1804 return self.expression(exp.With, expressions=expressions, recursive=recursive) 1805 -1806 return self.expression( -1807 exp.CTE, -1808 this=self._parse_wrapped(self._parse_statement), -1809 alias=alias, -1810 ) -1811 -1812 def _parse_table_alias( -1813 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None -1814 ) -> t.Optional[exp.Expression]: -1815 any_token = self._match(TokenType.ALIAS) -1816 alias = ( -1817 self._parse_id_var(any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) -1818 or self._parse_string_as_identifier() -1819 ) -1820 -1821 index = self._index -1822 if self._match(TokenType.L_PAREN): -1823 columns = self._parse_csv(self._parse_function_parameter) -1824 self._match_r_paren() if columns else self._retreat(index) -1825 else: -1826 columns = None +1806 def _parse_cte(self) -> exp.Expression: +1807 alias = self._parse_table_alias() +1808 if not alias or not alias.this: +1809 self.raise_error("Expected CTE to have alias") +1810 +1811 self._match(TokenType.ALIAS) +1812 +1813 return self.expression( +1814 exp.CTE, +1815 this=self._parse_wrapped(self._parse_statement), +1816 alias=alias, +1817 ) +1818 +1819 def _parse_table_alias( +1820 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None +1821 ) -> t.Optional[exp.Expression]: +1822 any_token = self._match(TokenType.ALIAS) +1823 alias = ( +1824 self._parse_id_var(any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) +1825 or self._parse_string_as_identifier() +1826 ) 1827 -1828 if not alias and not columns: -1829 return None -1830 -1831 return self.expression(exp.TableAlias, this=alias, columns=columns) -1832 -1833 def _parse_subquery( -1834 self, this: t.Optional[exp.Expression], parse_alias: bool = True -1835 ) -> exp.Expression: -1836 return self.expression( -1837 exp.Subquery, -1838 this=this, -1839 pivots=self._parse_pivots(), -1840 alias=self._parse_table_alias() if parse_alias else None, -1841 ) -1842 -1843 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: -1844 if not isinstance(this, self.MODIFIABLES): -1845 return -1846 -1847 table = isinstance(this, exp.Table) -1848 -1849 while True: -1850 lateral = self._parse_lateral() -1851 join = self._parse_join() -1852 comma = None if table else self._match(TokenType.COMMA) -1853 if lateral: -1854 this.append("laterals", lateral) -1855 if join: -1856 this.append("joins", join) -1857 if comma: -1858 this.args["from"].append("expressions", self._parse_table()) -1859 if not (lateral or join or comma): -1860 break -1861 -1862 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): -1863 expression = parser(self) -1864 -1865 if expression: -1866 this.set(key, expression) -1867 -1868 def _parse_hint(self) -> t.Optional[exp.Expression]: -1869 if self._match(TokenType.HINT): -1870 hints = self._parse_csv(self._parse_function) -1871 if not self._match_pair(TokenType.STAR, TokenType.SLASH): -1872 self.raise_error("Expected */ after HINT") -1873 return self.expression(exp.Hint, expressions=hints) +1828 index = self._index +1829 if self._match(TokenType.L_PAREN): +1830 columns = self._parse_csv(self._parse_function_parameter) +1831 self._match_r_paren() if columns else self._retreat(index) +1832 else: +1833 columns = None +1834 +1835 if not alias and not columns: +1836 return None +1837 +1838 return self.expression(exp.TableAlias, this=alias, columns=columns) +1839 +1840 def _parse_subquery( +1841 self, this: t.Optional[exp.Expression], parse_alias: bool = True +1842 ) -> exp.Expression: +1843 return self.expression( +1844 exp.Subquery, +1845 this=this, +1846 pivots=self._parse_pivots(), +1847 alias=self._parse_table_alias() if parse_alias else None, +1848 ) +1849 +1850 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: +1851 if not isinstance(this, self.MODIFIABLES): +1852 return +1853 +1854 table = isinstance(this, exp.Table) +1855 +1856 while True: +1857 lateral = self._parse_lateral() +1858 join = self._parse_join() +1859 comma = None if table else self._match(TokenType.COMMA) +1860 if lateral: +1861 this.append("laterals", lateral) +1862 if join: +1863 this.append("joins", join) +1864 if comma: +1865 this.args["from"].append("expressions", self._parse_table()) +1866 if not (lateral or join or comma): +1867 break +1868 +1869 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): +1870 expression = parser(self) +1871 +1872 if expression: +1873 this.set(key, expression) 1874 -1875 return None -1876 -1877 def _parse_into(self) -> t.Optional[exp.Expression]: -1878 if not self._match(TokenType.INTO): -1879 return None -1880 -1881 temp = self._match(TokenType.TEMPORARY) -1882 unlogged = self._match(TokenType.UNLOGGED) -1883 self._match(TokenType.TABLE) -1884 -1885 return self.expression( -1886 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged -1887 ) -1888 -1889 def _parse_from(self) -> t.Optional[exp.Expression]: -1890 if not self._match(TokenType.FROM): -1891 return None -1892 -1893 return self.expression( -1894 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) -1895 ) -1896 -1897 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: -1898 if not self._match(TokenType.MATCH_RECOGNIZE): -1899 return None -1900 self._match_l_paren() -1901 -1902 partition = self._parse_partition_by() -1903 order = self._parse_order() -1904 measures = ( -1905 self._parse_alias(self._parse_conjunction()) -1906 if self._match_text_seq("MEASURES") -1907 else None -1908 ) -1909 -1910 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): -1911 rows = exp.Var(this="ONE ROW PER MATCH") -1912 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): -1913 text = "ALL ROWS PER MATCH" -1914 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): -1915 text += f" SHOW EMPTY MATCHES" -1916 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): -1917 text += f" OMIT EMPTY MATCHES" -1918 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): -1919 text += f" WITH UNMATCHED ROWS" -1920 rows = exp.Var(this=text) -1921 else: -1922 rows = None -1923 -1924 if self._match_text_seq("AFTER", "MATCH", "SKIP"): -1925 text = "AFTER MATCH SKIP" -1926 if self._match_text_seq("PAST", "LAST", "ROW"): -1927 text += f" PAST LAST ROW" -1928 elif self._match_text_seq("TO", "NEXT", "ROW"): -1929 text += f" TO NEXT ROW" -1930 elif self._match_text_seq("TO", "FIRST"): -1931 text += f" TO FIRST {self._advance_any().text}" # type: ignore -1932 elif self._match_text_seq("TO", "LAST"): -1933 text += f" TO LAST {self._advance_any().text}" # type: ignore -1934 after = exp.Var(this=text) -1935 else: -1936 after = None -1937 -1938 if self._match_text_seq("PATTERN"): -1939 self._match_l_paren() -1940 -1941 if not self._curr: -1942 self.raise_error("Expecting )", self._curr) -1943 -1944 paren = 1 -1945 start = self._curr -1946 -1947 while self._curr and paren > 0: -1948 if self._curr.token_type == TokenType.L_PAREN: -1949 paren += 1 -1950 if self._curr.token_type == TokenType.R_PAREN: -1951 paren -= 1 -1952 end = self._prev -1953 self._advance() -1954 if paren > 0: -1955 self.raise_error("Expecting )", self._curr) -1956 pattern = exp.Var(this=self._find_sql(start, end)) -1957 else: -1958 pattern = None -1959 -1960 define = ( -1961 self._parse_alias(self._parse_conjunction()) if self._match_text_seq("DEFINE") else None -1962 ) -1963 self._match_r_paren() -1964 -1965 return self.expression( -1966 exp.MatchRecognize, -1967 partition_by=partition, -1968 order=order, -1969 measures=measures, -1970 rows=rows, -1971 after=after, -1972 pattern=pattern, -1973 define=define, -1974 ) -1975 -1976 def _parse_lateral(self) -> t.Optional[exp.Expression]: -1977 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) -1978 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) -1979 -1980 if outer_apply or cross_apply: -1981 this = self._parse_select(table=True) -1982 view = None -1983 outer = not cross_apply -1984 elif self._match(TokenType.LATERAL): -1985 this = self._parse_select(table=True) -1986 view = self._match(TokenType.VIEW) -1987 outer = self._match(TokenType.OUTER) -1988 else: -1989 return None -1990 -1991 if not this: -1992 this = self._parse_function() or self._parse_id_var(any_token=False) -1993 while self._match(TokenType.DOT): -1994 this = exp.Dot( -1995 this=this, -1996 expression=self._parse_function() or self._parse_id_var(any_token=False), -1997 ) -1998 -1999 table_alias: t.Optional[exp.Expression] -2000 -2001 if view: -2002 table = self._parse_id_var(any_token=False) -2003 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] -2004 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) -2005 else: -2006 table_alias = self._parse_table_alias() +1875 def _parse_hint(self) -> t.Optional[exp.Expression]: +1876 if self._match(TokenType.HINT): +1877 hints = self._parse_csv(self._parse_function) +1878 if not self._match_pair(TokenType.STAR, TokenType.SLASH): +1879 self.raise_error("Expected */ after HINT") +1880 return self.expression(exp.Hint, expressions=hints) +1881 +1882 return None +1883 +1884 def _parse_into(self) -> t.Optional[exp.Expression]: +1885 if not self._match(TokenType.INTO): +1886 return None +1887 +1888 temp = self._match(TokenType.TEMPORARY) +1889 unlogged = self._match(TokenType.UNLOGGED) +1890 self._match(TokenType.TABLE) +1891 +1892 return self.expression( +1893 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged +1894 ) +1895 +1896 def _parse_from(self) -> t.Optional[exp.Expression]: +1897 if not self._match(TokenType.FROM): +1898 return None +1899 +1900 return self.expression( +1901 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) +1902 ) +1903 +1904 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: +1905 if not self._match(TokenType.MATCH_RECOGNIZE): +1906 return None +1907 self._match_l_paren() +1908 +1909 partition = self._parse_partition_by() +1910 order = self._parse_order() +1911 measures = ( +1912 self._parse_alias(self._parse_conjunction()) +1913 if self._match_text_seq("MEASURES") +1914 else None +1915 ) +1916 +1917 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): +1918 rows = exp.Var(this="ONE ROW PER MATCH") +1919 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): +1920 text = "ALL ROWS PER MATCH" +1921 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): +1922 text += f" SHOW EMPTY MATCHES" +1923 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): +1924 text += f" OMIT EMPTY MATCHES" +1925 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): +1926 text += f" WITH UNMATCHED ROWS" +1927 rows = exp.Var(this=text) +1928 else: +1929 rows = None +1930 +1931 if self._match_text_seq("AFTER", "MATCH", "SKIP"): +1932 text = "AFTER MATCH SKIP" +1933 if self._match_text_seq("PAST", "LAST", "ROW"): +1934 text += f" PAST LAST ROW" +1935 elif self._match_text_seq("TO", "NEXT", "ROW"): +1936 text += f" TO NEXT ROW" +1937 elif self._match_text_seq("TO", "FIRST"): +1938 text += f" TO FIRST {self._advance_any().text}" # type: ignore +1939 elif self._match_text_seq("TO", "LAST"): +1940 text += f" TO LAST {self._advance_any().text}" # type: ignore +1941 after = exp.Var(this=text) +1942 else: +1943 after = None +1944 +1945 if self._match_text_seq("PATTERN"): +1946 self._match_l_paren() +1947 +1948 if not self._curr: +1949 self.raise_error("Expecting )", self._curr) +1950 +1951 paren = 1 +1952 start = self._curr +1953 +1954 while self._curr and paren > 0: +1955 if self._curr.token_type == TokenType.L_PAREN: +1956 paren += 1 +1957 if self._curr.token_type == TokenType.R_PAREN: +1958 paren -= 1 +1959 end = self._prev +1960 self._advance() +1961 if paren > 0: +1962 self.raise_error("Expecting )", self._curr) +1963 pattern = exp.Var(this=self._find_sql(start, end)) +1964 else: +1965 pattern = None +1966 +1967 define = ( +1968 self._parse_alias(self._parse_conjunction()) if self._match_text_seq("DEFINE") else None +1969 ) +1970 self._match_r_paren() +1971 +1972 return self.expression( +1973 exp.MatchRecognize, +1974 partition_by=partition, +1975 order=order, +1976 measures=measures, +1977 rows=rows, +1978 after=after, +1979 pattern=pattern, +1980 define=define, +1981 ) +1982 +1983 def _parse_lateral(self) -> t.Optional[exp.Expression]: +1984 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) +1985 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) +1986 +1987 if outer_apply or cross_apply: +1988 this = self._parse_select(table=True) +1989 view = None +1990 outer = not cross_apply +1991 elif self._match(TokenType.LATERAL): +1992 this = self._parse_select(table=True) +1993 view = self._match(TokenType.VIEW) +1994 outer = self._match(TokenType.OUTER) +1995 else: +1996 return None +1997 +1998 if not this: +1999 this = self._parse_function() or self._parse_id_var(any_token=False) +2000 while self._match(TokenType.DOT): +2001 this = exp.Dot( +2002 this=this, +2003 expression=self._parse_function() or self._parse_id_var(any_token=False), +2004 ) +2005 +2006 table_alias: t.Optional[exp.Expression] 2007 -2008 expression = self.expression( -2009 exp.Lateral, -2010 this=this, -2011 view=view, -2012 outer=outer, -2013 alias=table_alias, -2014 ) -2015 -2016 if outer_apply or cross_apply: -2017 return self.expression(exp.Join, this=expression, side=None if cross_apply else "LEFT") -2018 -2019 return expression -2020 -2021 def _parse_join_side_and_kind( -2022 self, -2023 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: -2024 return ( -2025 self._match(TokenType.NATURAL) and self._prev, -2026 self._match_set(self.JOIN_SIDES) and self._prev, -2027 self._match_set(self.JOIN_KINDS) and self._prev, -2028 ) -2029 -2030 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: -2031 natural, side, kind = self._parse_join_side_and_kind() -2032 -2033 if not skip_join_token and not self._match(TokenType.JOIN): -2034 return None -2035 -2036 kwargs: t.Dict[ -2037 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] -2038 ] = {"this": self._parse_table()} +2008 if view: +2009 table = self._parse_id_var(any_token=False) +2010 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] +2011 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) +2012 else: +2013 table_alias = self._parse_table_alias() +2014 +2015 expression = self.expression( +2016 exp.Lateral, +2017 this=this, +2018 view=view, +2019 outer=outer, +2020 alias=table_alias, +2021 ) +2022 +2023 if outer_apply or cross_apply: +2024 return self.expression(exp.Join, this=expression, side=None if cross_apply else "LEFT") +2025 +2026 return expression +2027 +2028 def _parse_join_side_and_kind( +2029 self, +2030 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: +2031 return ( +2032 self._match(TokenType.NATURAL) and self._prev, +2033 self._match_set(self.JOIN_SIDES) and self._prev, +2034 self._match_set(self.JOIN_KINDS) and self._prev, +2035 ) +2036 +2037 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: +2038 natural, side, kind = self._parse_join_side_and_kind() 2039 -2040 if natural: -2041 kwargs["natural"] = True -2042 if side: -2043 kwargs["side"] = side.text -2044 if kind: -2045 kwargs["kind"] = kind.text +2040 if not skip_join_token and not self._match(TokenType.JOIN): +2041 return None +2042 +2043 kwargs: t.Dict[ +2044 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] +2045 ] = {"this": self._parse_table()} 2046 -2047 if self._match(TokenType.ON): -2048 kwargs["on"] = self._parse_conjunction() -2049 elif self._match(TokenType.USING): -2050 kwargs["using"] = self._parse_wrapped_id_vars() -2051 -2052 return self.expression(exp.Join, **kwargs) # type: ignore +2047 if natural: +2048 kwargs["natural"] = True +2049 if side: +2050 kwargs["side"] = side.text +2051 if kind: +2052 kwargs["kind"] = kind.text 2053 -2054 def _parse_index(self) -> exp.Expression: -2055 index = self._parse_id_var() -2056 self._match(TokenType.ON) -2057 self._match(TokenType.TABLE) # hive +2054 if self._match(TokenType.ON): +2055 kwargs["on"] = self._parse_conjunction() +2056 elif self._match(TokenType.USING): +2057 kwargs["using"] = self._parse_wrapped_id_vars() 2058 -2059 return self.expression( -2060 exp.Index, -2061 this=index, -2062 table=self.expression(exp.Table, this=self._parse_id_var()), -2063 columns=self._parse_expression(), -2064 ) +2059 return self.expression(exp.Join, **kwargs) # type: ignore +2060 +2061 def _parse_index(self) -> exp.Expression: +2062 index = self._parse_id_var() +2063 self._match(TokenType.ON) +2064 self._match(TokenType.TABLE) # hive 2065 -2066 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: -2067 unique = self._match(TokenType.UNIQUE) -2068 primary = self._match_text_seq("PRIMARY") -2069 amp = self._match_text_seq("AMP") -2070 if not self._match(TokenType.INDEX): -2071 return None -2072 index = self._parse_id_var() -2073 columns = None -2074 if self._match(TokenType.L_PAREN, advance=False): -2075 columns = self._parse_wrapped_csv(self._parse_column) -2076 return self.expression( -2077 exp.Index, -2078 this=index, -2079 columns=columns, -2080 unique=unique, -2081 primary=primary, -2082 amp=amp, -2083 ) -2084 -2085 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: -2086 catalog = None -2087 db = None -2088 -2089 table = ( -2090 (not schema and self._parse_function()) -2091 or self._parse_id_var(any_token=False) -2092 or self._parse_string_as_identifier() -2093 ) -2094 -2095 while self._match(TokenType.DOT): -2096 if catalog: -2097 # This allows nesting the table in arbitrarily many dot expressions if needed -2098 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) -2099 else: -2100 catalog = db -2101 db = table -2102 table = self._parse_id_var() -2103 -2104 if not table: -2105 self.raise_error(f"Expected table name but got {self._curr}") -2106 -2107 return self.expression( -2108 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() -2109 ) +2066 return self.expression( +2067 exp.Index, +2068 this=index, +2069 table=self.expression(exp.Table, this=self._parse_id_var()), +2070 columns=self._parse_expression(), +2071 ) +2072 +2073 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: +2074 unique = self._match(TokenType.UNIQUE) +2075 primary = self._match_text_seq("PRIMARY") +2076 amp = self._match_text_seq("AMP") +2077 if not self._match(TokenType.INDEX): +2078 return None +2079 index = self._parse_id_var() +2080 columns = None +2081 if self._match(TokenType.L_PAREN, advance=False): +2082 columns = self._parse_wrapped_csv(self._parse_column) +2083 return self.expression( +2084 exp.Index, +2085 this=index, +2086 columns=columns, +2087 unique=unique, +2088 primary=primary, +2089 amp=amp, +2090 ) +2091 +2092 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: +2093 catalog = None +2094 db = None +2095 +2096 table = ( +2097 (not schema and self._parse_function()) +2098 or self._parse_id_var(any_token=False) +2099 or self._parse_string_as_identifier() +2100 ) +2101 +2102 while self._match(TokenType.DOT): +2103 if catalog: +2104 # This allows nesting the table in arbitrarily many dot expressions if needed +2105 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) +2106 else: +2107 catalog = db +2108 db = table +2109 table = self._parse_id_var() 2110 -2111 def _parse_table( -2112 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None -2113 ) -> t.Optional[exp.Expression]: -2114 lateral = self._parse_lateral() -2115 -2116 if lateral: -2117 return lateral -2118 -2119 unnest = self._parse_unnest() -2120 -2121 if unnest: -2122 return unnest -2123 -2124 values = self._parse_derived_table_values() +2111 if not table: +2112 self.raise_error(f"Expected table name but got {self._curr}") +2113 +2114 return self.expression( +2115 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() +2116 ) +2117 +2118 def _parse_table( +2119 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None +2120 ) -> t.Optional[exp.Expression]: +2121 lateral = self._parse_lateral() +2122 +2123 if lateral: +2124 return lateral 2125 -2126 if values: -2127 return values -2128 -2129 subquery = self._parse_select(table=True) +2126 unnest = self._parse_unnest() +2127 +2128 if unnest: +2129 return unnest 2130 -2131 if subquery: -2132 if not subquery.args.get("pivots"): -2133 subquery.set("pivots", self._parse_pivots()) -2134 return subquery +2131 values = self._parse_derived_table_values() +2132 +2133 if values: +2134 return values 2135 -2136 this = self._parse_table_parts(schema=schema) +2136 subquery = self._parse_select(table=True) 2137 -2138 if schema: -2139 return self._parse_schema(this=this) -2140 -2141 if self.alias_post_tablesample: -2142 table_sample = self._parse_table_sample() -2143 -2144 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) -2145 -2146 if alias: -2147 this.set("alias", alias) -2148 -2149 if not this.args.get("pivots"): -2150 this.set("pivots", self._parse_pivots()) -2151 -2152 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): -2153 this.set( -2154 "hints", -2155 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), -2156 ) -2157 self._match_r_paren() +2138 if subquery: +2139 if not subquery.args.get("pivots"): +2140 subquery.set("pivots", self._parse_pivots()) +2141 return subquery +2142 +2143 this = self._parse_table_parts(schema=schema) +2144 +2145 if schema: +2146 return self._parse_schema(this=this) +2147 +2148 if self.alias_post_tablesample: +2149 table_sample = self._parse_table_sample() +2150 +2151 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) +2152 +2153 if alias: +2154 this.set("alias", alias) +2155 +2156 if not this.args.get("pivots"): +2157 this.set("pivots", self._parse_pivots()) 2158 -2159 if not self.alias_post_tablesample: -2160 table_sample = self._parse_table_sample() -2161 -2162 if table_sample: -2163 table_sample.set("this", this) -2164 this = table_sample +2159 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): +2160 this.set( +2161 "hints", +2162 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), +2163 ) +2164 self._match_r_paren() 2165 -2166 return this -2167 -2168 def _parse_unnest(self) -> t.Optional[exp.Expression]: -2169 if not self._match(TokenType.UNNEST): -2170 return None -2171 -2172 expressions = self._parse_wrapped_csv(self._parse_column) -2173 ordinality = bool(self._match(TokenType.WITH) and self._match(TokenType.ORDINALITY)) -2174 alias = self._parse_table_alias() -2175 -2176 if alias and self.unnest_column_only: -2177 if alias.args.get("columns"): -2178 self.raise_error("Unexpected extra column alias in unnest.") -2179 alias.set("columns", [alias.this]) -2180 alias.set("this", None) -2181 -2182 offset = None -2183 if self._match_pair(TokenType.WITH, TokenType.OFFSET): -2184 self._match(TokenType.ALIAS) -2185 offset = self._parse_conjunction() -2186 -2187 return self.expression( -2188 exp.Unnest, -2189 expressions=expressions, -2190 ordinality=ordinality, -2191 alias=alias, -2192 offset=offset, -2193 ) -2194 -2195 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: -2196 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) -2197 if not is_derived and not self._match(TokenType.VALUES): -2198 return None -2199 -2200 expressions = self._parse_csv(self._parse_value) +2166 if not self.alias_post_tablesample: +2167 table_sample = self._parse_table_sample() +2168 +2169 if table_sample: +2170 table_sample.set("this", this) +2171 this = table_sample +2172 +2173 return this +2174 +2175 def _parse_unnest(self) -> t.Optional[exp.Expression]: +2176 if not self._match(TokenType.UNNEST): +2177 return None +2178 +2179 expressions = self._parse_wrapped_csv(self._parse_column) +2180 ordinality = bool(self._match(TokenType.WITH) and self._match(TokenType.ORDINALITY)) +2181 alias = self._parse_table_alias() +2182 +2183 if alias and self.unnest_column_only: +2184 if alias.args.get("columns"): +2185 self.raise_error("Unexpected extra column alias in unnest.") +2186 alias.set("columns", [alias.this]) +2187 alias.set("this", None) +2188 +2189 offset = None +2190 if self._match_pair(TokenType.WITH, TokenType.OFFSET): +2191 self._match(TokenType.ALIAS) +2192 offset = self._parse_conjunction() +2193 +2194 return self.expression( +2195 exp.Unnest, +2196 expressions=expressions, +2197 ordinality=ordinality, +2198 alias=alias, +2199 offset=offset, +2200 ) 2201 -2202 if is_derived: -2203 self._match_r_paren() -2204 -2205 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) +2202 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: +2203 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) +2204 if not is_derived and not self._match(TokenType.VALUES): +2205 return None 2206 -2207 def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: -2208 if not self._match(TokenType.TABLE_SAMPLE) and not ( -2209 as_modifier and self._match_text_seq("USING", "SAMPLE") -2210 ): -2211 return None -2212 -2213 bucket_numerator = None -2214 bucket_denominator = None -2215 bucket_field = None -2216 percent = None -2217 rows = None -2218 size = None -2219 seed = None -2220 -2221 kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" -2222 method = self._parse_var(tokens=(TokenType.ROW,)) -2223 -2224 self._match(TokenType.L_PAREN) -2225 -2226 num = self._parse_number() +2207 expressions = self._parse_csv(self._parse_value) +2208 +2209 if is_derived: +2210 self._match_r_paren() +2211 +2212 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) +2213 +2214 def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: +2215 if not self._match(TokenType.TABLE_SAMPLE) and not ( +2216 as_modifier and self._match_text_seq("USING", "SAMPLE") +2217 ): +2218 return None +2219 +2220 bucket_numerator = None +2221 bucket_denominator = None +2222 bucket_field = None +2223 percent = None +2224 rows = None +2225 size = None +2226 seed = None 2227 -2228 if self._match(TokenType.BUCKET): -2229 bucket_numerator = self._parse_number() -2230 self._match(TokenType.OUT_OF) -2231 bucket_denominator = bucket_denominator = self._parse_number() -2232 self._match(TokenType.ON) -2233 bucket_field = self._parse_field() -2234 elif self._match_set((TokenType.PERCENT, TokenType.MOD)): -2235 percent = num -2236 elif self._match(TokenType.ROWS): -2237 rows = num -2238 else: -2239 size = num -2240 -2241 self._match(TokenType.R_PAREN) -2242 -2243 if self._match(TokenType.L_PAREN): -2244 method = self._parse_var() -2245 seed = self._match(TokenType.COMMA) and self._parse_number() -2246 self._match_r_paren() -2247 elif self._match_texts(("SEED", "REPEATABLE")): -2248 seed = self._parse_wrapped(self._parse_number) +2228 kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" +2229 method = self._parse_var(tokens=(TokenType.ROW,)) +2230 +2231 self._match(TokenType.L_PAREN) +2232 +2233 num = self._parse_number() +2234 +2235 if self._match(TokenType.BUCKET): +2236 bucket_numerator = self._parse_number() +2237 self._match(TokenType.OUT_OF) +2238 bucket_denominator = bucket_denominator = self._parse_number() +2239 self._match(TokenType.ON) +2240 bucket_field = self._parse_field() +2241 elif self._match_set((TokenType.PERCENT, TokenType.MOD)): +2242 percent = num +2243 elif self._match(TokenType.ROWS): +2244 rows = num +2245 else: +2246 size = num +2247 +2248 self._match(TokenType.R_PAREN) 2249 -2250 return self.expression( -2251 exp.TableSample, -2252 method=method, -2253 bucket_numerator=bucket_numerator, -2254 bucket_denominator=bucket_denominator, -2255 bucket_field=bucket_field, -2256 percent=percent, -2257 rows=rows, -2258 size=size, -2259 seed=seed, -2260 kind=kind, -2261 ) -2262 -2263 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: -2264 return list(iter(self._parse_pivot, None)) -2265 -2266 def _parse_pivot(self) -> t.Optional[exp.Expression]: -2267 index = self._index -2268 -2269 if self._match(TokenType.PIVOT): -2270 unpivot = False -2271 elif self._match(TokenType.UNPIVOT): -2272 unpivot = True -2273 else: -2274 return None +2250 if self._match(TokenType.L_PAREN): +2251 method = self._parse_var() +2252 seed = self._match(TokenType.COMMA) and self._parse_number() +2253 self._match_r_paren() +2254 elif self._match_texts(("SEED", "REPEATABLE")): +2255 seed = self._parse_wrapped(self._parse_number) +2256 +2257 return self.expression( +2258 exp.TableSample, +2259 method=method, +2260 bucket_numerator=bucket_numerator, +2261 bucket_denominator=bucket_denominator, +2262 bucket_field=bucket_field, +2263 percent=percent, +2264 rows=rows, +2265 size=size, +2266 seed=seed, +2267 kind=kind, +2268 ) +2269 +2270 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: +2271 return list(iter(self._parse_pivot, None)) +2272 +2273 def _parse_pivot(self) -> t.Optional[exp.Expression]: +2274 index = self._index 2275 -2276 expressions = [] -2277 field = None -2278 -2279 if not self._match(TokenType.L_PAREN): -2280 self._retreat(index) +2276 if self._match(TokenType.PIVOT): +2277 unpivot = False +2278 elif self._match(TokenType.UNPIVOT): +2279 unpivot = True +2280 else: 2281 return None 2282 -2283 if unpivot: -2284 expressions = self._parse_csv(self._parse_column) -2285 else: -2286 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) -2287 -2288 if not self._match(TokenType.FOR): -2289 self.raise_error("Expecting FOR") -2290 -2291 value = self._parse_column() -2292 -2293 if not self._match(TokenType.IN): -2294 self.raise_error("Expecting IN") -2295 -2296 field = self._parse_in(value) +2283 expressions = [] +2284 field = None +2285 +2286 if not self._match(TokenType.L_PAREN): +2287 self._retreat(index) +2288 return None +2289 +2290 if unpivot: +2291 expressions = self._parse_csv(self._parse_column) +2292 else: +2293 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) +2294 +2295 if not self._match(TokenType.FOR): +2296 self.raise_error("Expecting FOR") 2297 -2298 self._match_r_paren() +2298 value = self._parse_column() 2299 -2300 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) -2301 -2302 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): -2303 pivot.set("alias", self._parse_table_alias()) +2300 if not self._match(TokenType.IN): +2301 self.raise_error("Expecting IN") +2302 +2303 field = self._parse_in(value) 2304 -2305 return pivot +2305 self._match_r_paren() 2306 -2307 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: -2308 if not skip_where_token and not self._match(TokenType.WHERE): -2309 return None -2310 -2311 return self.expression( -2312 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() -2313 ) -2314 -2315 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: -2316 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): -2317 return None -2318 -2319 elements = defaultdict(list) -2320 -2321 while True: -2322 expressions = self._parse_csv(self._parse_conjunction) -2323 if expressions: -2324 elements["expressions"].extend(expressions) +2307 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) +2308 +2309 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): +2310 pivot.set("alias", self._parse_table_alias()) +2311 +2312 return pivot +2313 +2314 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: +2315 if not skip_where_token and not self._match(TokenType.WHERE): +2316 return None +2317 +2318 return self.expression( +2319 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() +2320 ) +2321 +2322 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: +2323 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): +2324 return None 2325 -2326 grouping_sets = self._parse_grouping_sets() -2327 if grouping_sets: -2328 elements["grouping_sets"].extend(grouping_sets) -2329 -2330 rollup = None -2331 cube = None +2326 elements = defaultdict(list) +2327 +2328 while True: +2329 expressions = self._parse_csv(self._parse_conjunction) +2330 if expressions: +2331 elements["expressions"].extend(expressions) 2332 -2333 with_ = self._match(TokenType.WITH) -2334 if self._match(TokenType.ROLLUP): -2335 rollup = with_ or self._parse_wrapped_csv(self._parse_column) -2336 elements["rollup"].extend(ensure_list(rollup)) -2337 -2338 if self._match(TokenType.CUBE): -2339 cube = with_ or self._parse_wrapped_csv(self._parse_column) -2340 elements["cube"].extend(ensure_list(cube)) -2341 -2342 if not (expressions or grouping_sets or rollup or cube): -2343 break +2333 grouping_sets = self._parse_grouping_sets() +2334 if grouping_sets: +2335 elements["grouping_sets"].extend(grouping_sets) +2336 +2337 rollup = None +2338 cube = None +2339 +2340 with_ = self._match(TokenType.WITH) +2341 if self._match(TokenType.ROLLUP): +2342 rollup = with_ or self._parse_wrapped_csv(self._parse_column) +2343 elements["rollup"].extend(ensure_list(rollup)) 2344 -2345 return self.expression(exp.Group, **elements) # type: ignore -2346 -2347 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -2348 if not self._match(TokenType.GROUPING_SETS): -2349 return None -2350 -2351 return self._parse_wrapped_csv(self._parse_grouping_set) -2352 -2353 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: -2354 if self._match(TokenType.L_PAREN): -2355 grouping_set = self._parse_csv(self._parse_column) -2356 self._match_r_paren() -2357 return self.expression(exp.Tuple, expressions=grouping_set) -2358 -2359 return self._parse_column() -2360 -2361 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: -2362 if not skip_having_token and not self._match(TokenType.HAVING): -2363 return None -2364 return self.expression(exp.Having, this=self._parse_conjunction()) +2345 if self._match(TokenType.CUBE): +2346 cube = with_ or self._parse_wrapped_csv(self._parse_column) +2347 elements["cube"].extend(ensure_list(cube)) +2348 +2349 if not (expressions or grouping_sets or rollup or cube): +2350 break +2351 +2352 return self.expression(exp.Group, **elements) # type: ignore +2353 +2354 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +2355 if not self._match(TokenType.GROUPING_SETS): +2356 return None +2357 +2358 return self._parse_wrapped_csv(self._parse_grouping_set) +2359 +2360 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: +2361 if self._match(TokenType.L_PAREN): +2362 grouping_set = self._parse_csv(self._parse_column) +2363 self._match_r_paren() +2364 return self.expression(exp.Tuple, expressions=grouping_set) 2365 -2366 def _parse_qualify(self) -> t.Optional[exp.Expression]: -2367 if not self._match(TokenType.QUALIFY): -2368 return None -2369 return self.expression(exp.Qualify, this=self._parse_conjunction()) -2370 -2371 def _parse_order( -2372 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False -2373 ) -> t.Optional[exp.Expression]: -2374 if not skip_order_token and not self._match(TokenType.ORDER_BY): -2375 return this -2376 -2377 return self.expression( -2378 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) -2379 ) -2380 -2381 def _parse_sort( -2382 self, token_type: TokenType, exp_class: t.Type[exp.Expression] -2383 ) -> t.Optional[exp.Expression]: -2384 if not self._match(token_type): -2385 return None -2386 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) +2366 return self._parse_column() +2367 +2368 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: +2369 if not skip_having_token and not self._match(TokenType.HAVING): +2370 return None +2371 return self.expression(exp.Having, this=self._parse_conjunction()) +2372 +2373 def _parse_qualify(self) -> t.Optional[exp.Expression]: +2374 if not self._match(TokenType.QUALIFY): +2375 return None +2376 return self.expression(exp.Qualify, this=self._parse_conjunction()) +2377 +2378 def _parse_order( +2379 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False +2380 ) -> t.Optional[exp.Expression]: +2381 if not skip_order_token and not self._match(TokenType.ORDER_BY): +2382 return this +2383 +2384 return self.expression( +2385 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) +2386 ) 2387 -2388 def _parse_ordered(self) -> exp.Expression: -2389 this = self._parse_conjunction() -2390 self._match(TokenType.ASC) -2391 is_desc = self._match(TokenType.DESC) -2392 is_nulls_first = self._match(TokenType.NULLS_FIRST) -2393 is_nulls_last = self._match(TokenType.NULLS_LAST) -2394 desc = is_desc or False -2395 asc = not desc -2396 nulls_first = is_nulls_first or False -2397 explicitly_null_ordered = is_nulls_first or is_nulls_last -2398 if ( -2399 not explicitly_null_ordered -2400 and ( -2401 (asc and self.null_ordering == "nulls_are_small") -2402 or (desc and self.null_ordering != "nulls_are_small") -2403 ) -2404 and self.null_ordering != "nulls_are_last" -2405 ): -2406 nulls_first = True -2407 -2408 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) -2409 -2410 def _parse_limit( -2411 self, this: t.Optional[exp.Expression] = None, top: bool = False -2412 ) -> t.Optional[exp.Expression]: -2413 if self._match(TokenType.TOP if top else TokenType.LIMIT): -2414 limit_paren = self._match(TokenType.L_PAREN) -2415 limit_exp = self.expression( -2416 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() -2417 ) -2418 -2419 if limit_paren: -2420 self._match_r_paren() -2421 -2422 return limit_exp -2423 -2424 if self._match(TokenType.FETCH): -2425 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) -2426 direction = self._prev.text if direction else "FIRST" -2427 count = self._parse_number() -2428 self._match_set((TokenType.ROW, TokenType.ROWS)) -2429 self._match(TokenType.ONLY) -2430 return self.expression(exp.Fetch, direction=direction, count=count) -2431 -2432 return this -2433 -2434 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: -2435 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): -2436 return this -2437 -2438 count = self._parse_number() -2439 self._match_set((TokenType.ROW, TokenType.ROWS)) -2440 return self.expression(exp.Offset, this=this, expression=count) -2441 -2442 def _parse_lock(self) -> t.Optional[exp.Expression]: -2443 if self._match_text_seq("FOR", "UPDATE"): -2444 return self.expression(exp.Lock, update=True) -2445 if self._match_text_seq("FOR", "SHARE"): -2446 return self.expression(exp.Lock, update=False) -2447 -2448 return None -2449 -2450 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2451 if not self._match_set(self.SET_OPERATIONS): -2452 return this -2453 -2454 token_type = self._prev.token_type -2455 -2456 if token_type == TokenType.UNION: -2457 expression = exp.Union -2458 elif token_type == TokenType.EXCEPT: -2459 expression = exp.Except -2460 else: -2461 expression = exp.Intersect +2388 def _parse_sort( +2389 self, token_type: TokenType, exp_class: t.Type[exp.Expression] +2390 ) -> t.Optional[exp.Expression]: +2391 if not self._match(token_type): +2392 return None +2393 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) +2394 +2395 def _parse_ordered(self) -> exp.Expression: +2396 this = self._parse_conjunction() +2397 self._match(TokenType.ASC) +2398 is_desc = self._match(TokenType.DESC) +2399 is_nulls_first = self._match(TokenType.NULLS_FIRST) +2400 is_nulls_last = self._match(TokenType.NULLS_LAST) +2401 desc = is_desc or False +2402 asc = not desc +2403 nulls_first = is_nulls_first or False +2404 explicitly_null_ordered = is_nulls_first or is_nulls_last +2405 if ( +2406 not explicitly_null_ordered +2407 and ( +2408 (asc and self.null_ordering == "nulls_are_small") +2409 or (desc and self.null_ordering != "nulls_are_small") +2410 ) +2411 and self.null_ordering != "nulls_are_last" +2412 ): +2413 nulls_first = True +2414 +2415 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) +2416 +2417 def _parse_limit( +2418 self, this: t.Optional[exp.Expression] = None, top: bool = False +2419 ) -> t.Optional[exp.Expression]: +2420 if self._match(TokenType.TOP if top else TokenType.LIMIT): +2421 limit_paren = self._match(TokenType.L_PAREN) +2422 limit_exp = self.expression( +2423 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() +2424 ) +2425 +2426 if limit_paren: +2427 self._match_r_paren() +2428 +2429 return limit_exp +2430 +2431 if self._match(TokenType.FETCH): +2432 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) +2433 direction = self._prev.text if direction else "FIRST" +2434 count = self._parse_number() +2435 self._match_set((TokenType.ROW, TokenType.ROWS)) +2436 self._match(TokenType.ONLY) +2437 return self.expression(exp.Fetch, direction=direction, count=count) +2438 +2439 return this +2440 +2441 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +2442 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): +2443 return this +2444 +2445 count = self._parse_number() +2446 self._match_set((TokenType.ROW, TokenType.ROWS)) +2447 return self.expression(exp.Offset, this=this, expression=count) +2448 +2449 def _parse_lock(self) -> t.Optional[exp.Expression]: +2450 if self._match_text_seq("FOR", "UPDATE"): +2451 return self.expression(exp.Lock, update=True) +2452 if self._match_text_seq("FOR", "SHARE"): +2453 return self.expression(exp.Lock, update=False) +2454 +2455 return None +2456 +2457 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2458 if not self._match_set(self.SET_OPERATIONS): +2459 return this +2460 +2461 token_type = self._prev.token_type 2462 -2463 return self.expression( -2464 expression, -2465 this=this, -2466 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), -2467 expression=self._parse_set_operations(self._parse_select(nested=True)), -2468 ) +2463 if token_type == TokenType.UNION: +2464 expression = exp.Union +2465 elif token_type == TokenType.EXCEPT: +2466 expression = exp.Except +2467 else: +2468 expression = exp.Intersect 2469 -2470 def _parse_expression(self) -> t.Optional[exp.Expression]: -2471 return self._parse_alias(self._parse_conjunction()) -2472 -2473 def _parse_conjunction(self) -> t.Optional[exp.Expression]: -2474 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) -2475 -2476 def _parse_equality(self) -> t.Optional[exp.Expression]: -2477 return self._parse_tokens(self._parse_comparison, self.EQUALITY) -2478 -2479 def _parse_comparison(self) -> t.Optional[exp.Expression]: -2480 return self._parse_tokens(self._parse_range, self.COMPARISON) -2481 -2482 def _parse_range(self) -> t.Optional[exp.Expression]: -2483 this = self._parse_bitwise() -2484 negate = self._match(TokenType.NOT) +2470 return self.expression( +2471 expression, +2472 this=this, +2473 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), +2474 expression=self._parse_set_operations(self._parse_select(nested=True)), +2475 ) +2476 +2477 def _parse_expression(self) -> t.Optional[exp.Expression]: +2478 return self._parse_alias(self._parse_conjunction()) +2479 +2480 def _parse_conjunction(self) -> t.Optional[exp.Expression]: +2481 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) +2482 +2483 def _parse_equality(self) -> t.Optional[exp.Expression]: +2484 return self._parse_tokens(self._parse_comparison, self.EQUALITY) 2485 -2486 if self._match_set(self.RANGE_PARSERS): -2487 this = self.RANGE_PARSERS[self._prev.token_type](self, this) -2488 elif self._match(TokenType.ISNULL): -2489 this = self.expression(exp.Is, this=this, expression=exp.Null()) -2490 -2491 # Postgres supports ISNULL and NOTNULL for conditions. -2492 # https://blog.andreiavram.ro/postgresql-null-composite-type/ -2493 if self._match(TokenType.NOTNULL): -2494 this = self.expression(exp.Is, this=this, expression=exp.Null()) -2495 this = self.expression(exp.Not, this=this) -2496 -2497 if negate: -2498 this = self.expression(exp.Not, this=this) -2499 -2500 if self._match(TokenType.IS): -2501 this = self._parse_is(this) -2502 -2503 return this -2504 -2505 def _parse_is(self, this: t.Optional[exp.Expression]) -> exp.Expression: -2506 negate = self._match(TokenType.NOT) -2507 if self._match(TokenType.DISTINCT_FROM): -2508 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ -2509 return self.expression(klass, this=this, expression=self._parse_expression()) -2510 -2511 this = self.expression( -2512 exp.Is, -2513 this=this, -2514 expression=self._parse_null() or self._parse_boolean(), -2515 ) -2516 return self.expression(exp.Not, this=this) if negate else this +2486 def _parse_comparison(self) -> t.Optional[exp.Expression]: +2487 return self._parse_tokens(self._parse_range, self.COMPARISON) +2488 +2489 def _parse_range(self) -> t.Optional[exp.Expression]: +2490 this = self._parse_bitwise() +2491 negate = self._match(TokenType.NOT) +2492 +2493 if self._match_set(self.RANGE_PARSERS): +2494 this = self.RANGE_PARSERS[self._prev.token_type](self, this) +2495 elif self._match(TokenType.ISNULL): +2496 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2497 +2498 # Postgres supports ISNULL and NOTNULL for conditions. +2499 # https://blog.andreiavram.ro/postgresql-null-composite-type/ +2500 if self._match(TokenType.NOTNULL): +2501 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2502 this = self.expression(exp.Not, this=this) +2503 +2504 if negate: +2505 this = self.expression(exp.Not, this=this) +2506 +2507 if self._match(TokenType.IS): +2508 this = self._parse_is(this) +2509 +2510 return this +2511 +2512 def _parse_is(self, this: t.Optional[exp.Expression]) -> exp.Expression: +2513 negate = self._match(TokenType.NOT) +2514 if self._match(TokenType.DISTINCT_FROM): +2515 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ +2516 return self.expression(klass, this=this, expression=self._parse_expression()) 2517 -2518 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: -2519 unnest = self._parse_unnest() -2520 if unnest: -2521 this = self.expression(exp.In, this=this, unnest=unnest) -2522 elif self._match(TokenType.L_PAREN): -2523 expressions = self._parse_csv(self._parse_select_or_expression) +2518 this = self.expression( +2519 exp.Is, +2520 this=this, +2521 expression=self._parse_null() or self._parse_boolean(), +2522 ) +2523 return self.expression(exp.Not, this=this) if negate else this 2524 -2525 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): -2526 this = self.expression(exp.In, this=this, query=expressions[0]) -2527 else: -2528 this = self.expression(exp.In, this=this, expressions=expressions) -2529 -2530 self._match_r_paren() -2531 else: -2532 this = self.expression(exp.In, this=this, field=self._parse_field()) -2533 -2534 return this -2535 -2536 def _parse_between(self, this: exp.Expression) -> exp.Expression: -2537 low = self._parse_bitwise() -2538 self._match(TokenType.AND) -2539 high = self._parse_bitwise() -2540 return self.expression(exp.Between, this=this, low=low, high=high) -2541 -2542 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2543 if not self._match(TokenType.ESCAPE): -2544 return this -2545 return self.expression(exp.Escape, this=this, expression=self._parse_string()) -2546 -2547 def _parse_bitwise(self) -> t.Optional[exp.Expression]: -2548 this = self._parse_term() -2549 -2550 while True: -2551 if self._match_set(self.BITWISE): -2552 this = self.expression( -2553 self.BITWISE[self._prev.token_type], -2554 this=this, -2555 expression=self._parse_term(), -2556 ) -2557 elif self._match_pair(TokenType.LT, TokenType.LT): -2558 this = self.expression( -2559 exp.BitwiseLeftShift, this=this, expression=self._parse_term() -2560 ) -2561 elif self._match_pair(TokenType.GT, TokenType.GT): -2562 this = self.expression( -2563 exp.BitwiseRightShift, this=this, expression=self._parse_term() -2564 ) -2565 else: -2566 break -2567 -2568 return this -2569 -2570 def _parse_term(self) -> t.Optional[exp.Expression]: -2571 return self._parse_tokens(self._parse_factor, self.TERM) -2572 -2573 def _parse_factor(self) -> t.Optional[exp.Expression]: -2574 return self._parse_tokens(self._parse_unary, self.FACTOR) -2575 -2576 def _parse_unary(self) -> t.Optional[exp.Expression]: -2577 if self._match_set(self.UNARY_PARSERS): -2578 return self.UNARY_PARSERS[self._prev.token_type](self) -2579 return self._parse_at_time_zone(self._parse_type()) -2580 -2581 def _parse_type(self) -> t.Optional[exp.Expression]: -2582 if self._match(TokenType.INTERVAL): -2583 return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_field()) -2584 -2585 index = self._index -2586 type_token = self._parse_types(check_func=True) -2587 this = self._parse_column() -2588 -2589 if type_token: -2590 if isinstance(this, exp.Literal): -2591 return self.expression(exp.Cast, this=this, to=type_token) -2592 if not type_token.args.get("expressions"): -2593 self._retreat(index) -2594 return self._parse_column() -2595 return type_token -2596 -2597 return this -2598 -2599 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: -2600 index = self._index -2601 -2602 prefix = self._match_text_seq("SYSUDTLIB", ".") +2525 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: +2526 unnest = self._parse_unnest() +2527 if unnest: +2528 this = self.expression(exp.In, this=this, unnest=unnest) +2529 elif self._match(TokenType.L_PAREN): +2530 expressions = self._parse_csv(self._parse_select_or_expression) +2531 +2532 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): +2533 this = self.expression(exp.In, this=this, query=expressions[0]) +2534 else: +2535 this = self.expression(exp.In, this=this, expressions=expressions) +2536 +2537 self._match_r_paren() +2538 else: +2539 this = self.expression(exp.In, this=this, field=self._parse_field()) +2540 +2541 return this +2542 +2543 def _parse_between(self, this: exp.Expression) -> exp.Expression: +2544 low = self._parse_bitwise() +2545 self._match(TokenType.AND) +2546 high = self._parse_bitwise() +2547 return self.expression(exp.Between, this=this, low=low, high=high) +2548 +2549 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2550 if not self._match(TokenType.ESCAPE): +2551 return this +2552 return self.expression(exp.Escape, this=this, expression=self._parse_string()) +2553 +2554 def _parse_bitwise(self) -> t.Optional[exp.Expression]: +2555 this = self._parse_term() +2556 +2557 while True: +2558 if self._match_set(self.BITWISE): +2559 this = self.expression( +2560 self.BITWISE[self._prev.token_type], +2561 this=this, +2562 expression=self._parse_term(), +2563 ) +2564 elif self._match_pair(TokenType.LT, TokenType.LT): +2565 this = self.expression( +2566 exp.BitwiseLeftShift, this=this, expression=self._parse_term() +2567 ) +2568 elif self._match_pair(TokenType.GT, TokenType.GT): +2569 this = self.expression( +2570 exp.BitwiseRightShift, this=this, expression=self._parse_term() +2571 ) +2572 else: +2573 break +2574 +2575 return this +2576 +2577 def _parse_term(self) -> t.Optional[exp.Expression]: +2578 return self._parse_tokens(self._parse_factor, self.TERM) +2579 +2580 def _parse_factor(self) -> t.Optional[exp.Expression]: +2581 return self._parse_tokens(self._parse_unary, self.FACTOR) +2582 +2583 def _parse_unary(self) -> t.Optional[exp.Expression]: +2584 if self._match_set(self.UNARY_PARSERS): +2585 return self.UNARY_PARSERS[self._prev.token_type](self) +2586 return self._parse_at_time_zone(self._parse_type()) +2587 +2588 def _parse_type(self) -> t.Optional[exp.Expression]: +2589 if self._match(TokenType.INTERVAL): +2590 return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_field()) +2591 +2592 index = self._index +2593 type_token = self._parse_types(check_func=True) +2594 this = self._parse_column() +2595 +2596 if type_token: +2597 if isinstance(this, exp.Literal): +2598 return self.expression(exp.Cast, this=this, to=type_token) +2599 if not type_token.args.get("expressions"): +2600 self._retreat(index) +2601 return self._parse_column() +2602 return type_token 2603 -2604 if not self._match_set(self.TYPE_TOKENS): -2605 return None -2606 -2607 type_token = self._prev.token_type +2604 return this +2605 +2606 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: +2607 index = self._index 2608 -2609 if type_token == TokenType.PSEUDO_TYPE: -2610 return self.expression(exp.PseudoType, this=self._prev.text) -2611 -2612 nested = type_token in self.NESTED_TYPE_TOKENS -2613 is_struct = type_token == TokenType.STRUCT -2614 expressions = None -2615 maybe_func = False -2616 -2617 if self._match(TokenType.L_PAREN): -2618 if is_struct: -2619 expressions = self._parse_csv(self._parse_struct_kwargs) -2620 elif nested: -2621 expressions = self._parse_csv(self._parse_types) -2622 else: -2623 expressions = self._parse_csv(self._parse_conjunction) -2624 -2625 if not expressions: -2626 self._retreat(index) -2627 return None -2628 -2629 self._match_r_paren() -2630 maybe_func = True +2609 prefix = self._match_text_seq("SYSUDTLIB", ".") +2610 +2611 if not self._match_set(self.TYPE_TOKENS): +2612 return None +2613 +2614 type_token = self._prev.token_type +2615 +2616 if type_token == TokenType.PSEUDO_TYPE: +2617 return self.expression(exp.PseudoType, this=self._prev.text) +2618 +2619 nested = type_token in self.NESTED_TYPE_TOKENS +2620 is_struct = type_token == TokenType.STRUCT +2621 expressions = None +2622 maybe_func = False +2623 +2624 if self._match(TokenType.L_PAREN): +2625 if is_struct: +2626 expressions = self._parse_csv(self._parse_struct_kwargs) +2627 elif nested: +2628 expressions = self._parse_csv(self._parse_types) +2629 else: +2630 expressions = self._parse_csv(self._parse_conjunction) 2631 -2632 if not nested and self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): -2633 this = exp.DataType( -2634 this=exp.DataType.Type.ARRAY, -2635 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], -2636 nested=True, -2637 ) +2632 if not expressions: +2633 self._retreat(index) +2634 return None +2635 +2636 self._match_r_paren() +2637 maybe_func = True 2638 -2639 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): -2640 this = exp.DataType( -2641 this=exp.DataType.Type.ARRAY, -2642 expressions=[this], -2643 nested=True, -2644 ) +2639 if self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2640 this = exp.DataType( +2641 this=exp.DataType.Type.ARRAY, +2642 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], +2643 nested=True, +2644 ) 2645 -2646 return this -2647 -2648 if self._match(TokenType.L_BRACKET): -2649 self._retreat(index) -2650 return None -2651 -2652 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None -2653 if nested and self._match(TokenType.LT): -2654 if is_struct: -2655 expressions = self._parse_csv(self._parse_struct_kwargs) -2656 else: -2657 expressions = self._parse_csv(self._parse_types) +2646 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2647 this = exp.DataType( +2648 this=exp.DataType.Type.ARRAY, +2649 expressions=[this], +2650 nested=True, +2651 ) +2652 +2653 return this +2654 +2655 if self._match(TokenType.L_BRACKET): +2656 self._retreat(index) +2657 return None 2658 -2659 if not self._match(TokenType.GT): -2660 self.raise_error("Expecting >") -2661 -2662 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): -2663 values = self._parse_csv(self._parse_conjunction) -2664 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) +2659 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None +2660 if nested and self._match(TokenType.LT): +2661 if is_struct: +2662 expressions = self._parse_csv(self._parse_struct_kwargs) +2663 else: +2664 expressions = self._parse_csv(self._parse_types) 2665 -2666 value: t.Optional[exp.Expression] = None -2667 if type_token in self.TIMESTAMPS: -2668 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: -2669 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) -2670 elif ( -2671 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ -2672 ): -2673 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) -2674 elif self._match(TokenType.WITHOUT_TIME_ZONE): -2675 if type_token == TokenType.TIME: -2676 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) -2677 else: -2678 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) -2679 -2680 maybe_func = maybe_func and value is None -2681 -2682 if value is None: -2683 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) -2684 elif type_token == TokenType.INTERVAL: -2685 unit = self._parse_var() +2666 if not self._match(TokenType.GT): +2667 self.raise_error("Expecting >") +2668 +2669 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): +2670 values = self._parse_csv(self._parse_conjunction) +2671 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) +2672 +2673 value: t.Optional[exp.Expression] = None +2674 if type_token in self.TIMESTAMPS: +2675 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: +2676 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) +2677 elif ( +2678 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ +2679 ): +2680 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) +2681 elif self._match(TokenType.WITHOUT_TIME_ZONE): +2682 if type_token == TokenType.TIME: +2683 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) +2684 else: +2685 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) 2686 -2687 if not unit: -2688 value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) -2689 else: -2690 value = self.expression(exp.Interval, unit=unit) -2691 -2692 if maybe_func and check_func: -2693 index2 = self._index -2694 peek = self._parse_string() -2695 -2696 if not peek: -2697 self._retreat(index) -2698 return None -2699 -2700 self._retreat(index2) -2701 -2702 if value: -2703 return value -2704 -2705 return exp.DataType( -2706 this=exp.DataType.Type[type_token.value.upper()], -2707 expressions=expressions, -2708 nested=nested, -2709 values=values, -2710 prefix=prefix, -2711 ) -2712 -2713 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: -2714 if self._curr and self._curr.token_type in self.TYPE_TOKENS: -2715 return self._parse_types() -2716 -2717 this = self._parse_id_var() -2718 self._match(TokenType.COLON) -2719 data_type = self._parse_types() -2720 -2721 if not data_type: -2722 return None -2723 return self.expression(exp.StructKwarg, this=this, expression=data_type) -2724 -2725 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2726 if not self._match(TokenType.AT_TIME_ZONE): -2727 return this -2728 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) -2729 -2730 def _parse_column(self) -> t.Optional[exp.Expression]: -2731 this = self._parse_field() -2732 if isinstance(this, exp.Identifier): -2733 this = self.expression(exp.Column, this=this) -2734 elif not this: -2735 return self._parse_bracket(this) -2736 this = self._parse_bracket(this) -2737 -2738 while self._match_set(self.COLUMN_OPERATORS): -2739 op_token = self._prev.token_type -2740 op = self.COLUMN_OPERATORS.get(op_token) -2741 -2742 if op_token == TokenType.DCOLON: -2743 field = self._parse_types() -2744 if not field: -2745 self.raise_error("Expected type") -2746 elif op: -2747 self._advance() -2748 value = self._prev.text -2749 field = ( -2750 exp.Literal.number(value) -2751 if self._prev.token_type == TokenType.NUMBER -2752 else exp.Literal.string(value) -2753 ) -2754 else: -2755 field = self._parse_star() or self._parse_function() or self._parse_id_var() -2756 -2757 if isinstance(field, exp.Func): -2758 # bigquery allows function calls like x.y.count(...) -2759 # SAFE.SUBSTR(...) -2760 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules -2761 this = self._replace_columns_with_dots(this) -2762 -2763 if op: -2764 this = op(self, this, field) -2765 elif isinstance(this, exp.Column) and not this.args.get("catalog"): -2766 this = self.expression( -2767 exp.Column, -2768 this=field, -2769 table=this.this, -2770 db=this.args.get("table"), -2771 catalog=this.args.get("db"), -2772 ) -2773 else: -2774 this = self.expression(exp.Dot, this=this, expression=field) -2775 this = self._parse_bracket(this) -2776 -2777 return this -2778 -2779 def _parse_primary(self) -> t.Optional[exp.Expression]: -2780 if self._match_set(self.PRIMARY_PARSERS): -2781 token_type = self._prev.token_type -2782 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) +2687 maybe_func = maybe_func and value is None +2688 +2689 if value is None: +2690 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) +2691 elif type_token == TokenType.INTERVAL: +2692 unit = self._parse_var() +2693 +2694 if not unit: +2695 value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) +2696 else: +2697 value = self.expression(exp.Interval, unit=unit) +2698 +2699 if maybe_func and check_func: +2700 index2 = self._index +2701 peek = self._parse_string() +2702 +2703 if not peek: +2704 self._retreat(index) +2705 return None +2706 +2707 self._retreat(index2) +2708 +2709 if value: +2710 return value +2711 +2712 return exp.DataType( +2713 this=exp.DataType.Type[type_token.value.upper()], +2714 expressions=expressions, +2715 nested=nested, +2716 values=values, +2717 prefix=prefix, +2718 ) +2719 +2720 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: +2721 if self._curr and self._curr.token_type in self.TYPE_TOKENS: +2722 return self._parse_types() +2723 +2724 this = self._parse_id_var() +2725 self._match(TokenType.COLON) +2726 data_type = self._parse_types() +2727 +2728 if not data_type: +2729 return None +2730 return self.expression(exp.StructKwarg, this=this, expression=data_type) +2731 +2732 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2733 if not self._match(TokenType.AT_TIME_ZONE): +2734 return this +2735 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) +2736 +2737 def _parse_column(self) -> t.Optional[exp.Expression]: +2738 this = self._parse_field() +2739 if isinstance(this, exp.Identifier): +2740 this = self.expression(exp.Column, this=this) +2741 elif not this: +2742 return self._parse_bracket(this) +2743 this = self._parse_bracket(this) +2744 +2745 while self._match_set(self.COLUMN_OPERATORS): +2746 op_token = self._prev.token_type +2747 op = self.COLUMN_OPERATORS.get(op_token) +2748 +2749 if op_token == TokenType.DCOLON: +2750 field = self._parse_types() +2751 if not field: +2752 self.raise_error("Expected type") +2753 elif op: +2754 self._advance() +2755 value = self._prev.text +2756 field = ( +2757 exp.Literal.number(value) +2758 if self._prev.token_type == TokenType.NUMBER +2759 else exp.Literal.string(value) +2760 ) +2761 else: +2762 field = self._parse_star() or self._parse_function() or self._parse_id_var() +2763 +2764 if isinstance(field, exp.Func): +2765 # bigquery allows function calls like x.y.count(...) +2766 # SAFE.SUBSTR(...) +2767 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules +2768 this = self._replace_columns_with_dots(this) +2769 +2770 if op: +2771 this = op(self, this, field) +2772 elif isinstance(this, exp.Column) and not this.args.get("catalog"): +2773 this = self.expression( +2774 exp.Column, +2775 this=field, +2776 table=this.this, +2777 db=this.args.get("table"), +2778 catalog=this.args.get("db"), +2779 ) +2780 else: +2781 this = self.expression(exp.Dot, this=this, expression=field) +2782 this = self._parse_bracket(this) 2783 -2784 if token_type == TokenType.STRING: -2785 expressions = [primary] -2786 while self._match(TokenType.STRING): -2787 expressions.append(exp.Literal.string(self._prev.text)) -2788 if len(expressions) > 1: -2789 return self.expression(exp.Concat, expressions=expressions) -2790 return primary -2791 -2792 if self._match_pair(TokenType.DOT, TokenType.NUMBER): -2793 return exp.Literal.number(f"0.{self._prev.text}") -2794 -2795 if self._match(TokenType.L_PAREN): -2796 comments = self._prev_comments -2797 query = self._parse_select() +2784 return this +2785 +2786 def _parse_primary(self) -> t.Optional[exp.Expression]: +2787 if self._match_set(self.PRIMARY_PARSERS): +2788 token_type = self._prev.token_type +2789 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) +2790 +2791 if token_type == TokenType.STRING: +2792 expressions = [primary] +2793 while self._match(TokenType.STRING): +2794 expressions.append(exp.Literal.string(self._prev.text)) +2795 if len(expressions) > 1: +2796 return self.expression(exp.Concat, expressions=expressions) +2797 return primary 2798 -2799 if query: -2800 expressions = [query] -2801 else: -2802 expressions = self._parse_csv( -2803 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) -2804 ) +2799 if self._match_pair(TokenType.DOT, TokenType.NUMBER): +2800 return exp.Literal.number(f"0.{self._prev.text}") +2801 +2802 if self._match(TokenType.L_PAREN): +2803 comments = self._prev_comments +2804 query = self._parse_select() 2805 -2806 this = seq_get(expressions, 0) -2807 self._parse_query_modifiers(this) -2808 -2809 if isinstance(this, exp.Subqueryable): -2810 this = self._parse_set_operations( -2811 self._parse_subquery(this=this, parse_alias=False) -2812 ) -2813 elif len(expressions) > 1: -2814 this = self.expression(exp.Tuple, expressions=expressions) -2815 else: -2816 this = self.expression(exp.Paren, this=self._parse_set_operations(this)) -2817 -2818 self._match_r_paren() -2819 -2820 if this and comments: -2821 this.comments = comments -2822 -2823 return this +2806 if query: +2807 expressions = [query] +2808 else: +2809 expressions = self._parse_csv( +2810 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) +2811 ) +2812 +2813 this = seq_get(expressions, 0) +2814 self._parse_query_modifiers(this) +2815 +2816 if isinstance(this, exp.Subqueryable): +2817 this = self._parse_set_operations( +2818 self._parse_subquery(this=this, parse_alias=False) +2819 ) +2820 elif len(expressions) > 1: +2821 this = self.expression(exp.Tuple, expressions=expressions) +2822 else: +2823 this = self.expression(exp.Paren, this=self._parse_set_operations(this)) 2824 -2825 return None +2825 self._match_r_paren() 2826 -2827 def _parse_field(self, any_token: bool = False) -> t.Optional[exp.Expression]: -2828 return self._parse_primary() or self._parse_function() or self._parse_id_var(any_token) +2827 if this and comments: +2828 this.comments = comments 2829 -2830 def _parse_function( -2831 self, functions: t.Optional[t.Dict[str, t.Callable]] = None -2832 ) -> t.Optional[exp.Expression]: -2833 if not self._curr: -2834 return None -2835 -2836 token_type = self._curr.token_type -2837 -2838 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): -2839 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) -2840 -2841 if not self._next or self._next.token_type != TokenType.L_PAREN: -2842 if token_type in self.NO_PAREN_FUNCTIONS: -2843 self._advance() -2844 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) -2845 -2846 return None +2830 return this +2831 +2832 return None +2833 +2834 def _parse_field(self, any_token: bool = False) -> t.Optional[exp.Expression]: +2835 return self._parse_primary() or self._parse_function() or self._parse_id_var(any_token) +2836 +2837 def _parse_function( +2838 self, functions: t.Optional[t.Dict[str, t.Callable]] = None +2839 ) -> t.Optional[exp.Expression]: +2840 if not self._curr: +2841 return None +2842 +2843 token_type = self._curr.token_type +2844 +2845 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): +2846 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) 2847 -2848 if token_type not in self.FUNC_TOKENS: -2849 return None -2850 -2851 this = self._curr.text -2852 upper = this.upper() -2853 self._advance(2) +2848 if not self._next or self._next.token_type != TokenType.L_PAREN: +2849 if token_type in self.NO_PAREN_FUNCTIONS: +2850 self._advance() +2851 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) +2852 +2853 return None 2854 -2855 parser = self.FUNCTION_PARSERS.get(upper) -2856 -2857 if parser: -2858 this = parser(self) -2859 else: -2860 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) +2855 if token_type not in self.FUNC_TOKENS: +2856 return None +2857 +2858 this = self._curr.text +2859 upper = this.upper() +2860 self._advance(2) 2861 -2862 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): -2863 this = self.expression(subquery_predicate, this=self._parse_select()) -2864 self._match_r_paren() -2865 return this -2866 -2867 if functions is None: -2868 functions = self.FUNCTIONS -2869 -2870 function = functions.get(upper) -2871 args = self._parse_csv(self._parse_lambda) -2872 -2873 if function: -2874 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the -2875 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. -2876 if count_params(function) == 2: -2877 params = None -2878 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): -2879 params = self._parse_csv(self._parse_lambda) -2880 -2881 this = function(args, params) -2882 else: -2883 this = function(args) -2884 -2885 self.validate_expression(this, args) -2886 else: -2887 this = self.expression(exp.Anonymous, this=this, expressions=args) -2888 -2889 self._match_r_paren(this) -2890 return self._parse_window(this) +2862 parser = self.FUNCTION_PARSERS.get(upper) +2863 +2864 if parser: +2865 this = parser(self) +2866 else: +2867 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) +2868 +2869 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): +2870 this = self.expression(subquery_predicate, this=self._parse_select()) +2871 self._match_r_paren() +2872 return this +2873 +2874 if functions is None: +2875 functions = self.FUNCTIONS +2876 +2877 function = functions.get(upper) +2878 args = self._parse_csv(self._parse_lambda) +2879 +2880 if function: +2881 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the +2882 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. +2883 if count_params(function) == 2: +2884 params = None +2885 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): +2886 params = self._parse_csv(self._parse_lambda) +2887 +2888 this = function(args, params) +2889 else: +2890 this = function(args) 2891 -2892 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: -2893 return self._parse_column_def(self._parse_id_var()) -2894 -2895 def _parse_user_defined_function( -2896 self, kind: t.Optional[TokenType] = None -2897 ) -> t.Optional[exp.Expression]: -2898 this = self._parse_id_var() -2899 -2900 while self._match(TokenType.DOT): -2901 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) -2902 -2903 if not self._match(TokenType.L_PAREN): -2904 return this -2905 -2906 expressions = self._parse_csv(self._parse_function_parameter) -2907 self._match_r_paren() -2908 return self.expression( -2909 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True -2910 ) -2911 -2912 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: -2913 literal = self._parse_primary() -2914 if literal: -2915 return self.expression(exp.Introducer, this=token.text, expression=literal) -2916 -2917 return self.expression(exp.Identifier, this=token.text) +2892 self.validate_expression(this, args) +2893 else: +2894 this = self.expression(exp.Anonymous, this=this, expressions=args) +2895 +2896 self._match_r_paren(this) +2897 return self._parse_window(this) +2898 +2899 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: +2900 return self._parse_column_def(self._parse_id_var()) +2901 +2902 def _parse_user_defined_function( +2903 self, kind: t.Optional[TokenType] = None +2904 ) -> t.Optional[exp.Expression]: +2905 this = self._parse_id_var() +2906 +2907 while self._match(TokenType.DOT): +2908 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) +2909 +2910 if not self._match(TokenType.L_PAREN): +2911 return this +2912 +2913 expressions = self._parse_csv(self._parse_function_parameter) +2914 self._match_r_paren() +2915 return self.expression( +2916 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True +2917 ) 2918 -2919 def _parse_national(self, token: Token) -> exp.Expression: -2920 return self.expression(exp.National, this=exp.Literal.string(token.text)) -2921 -2922 def _parse_session_parameter(self) -> exp.Expression: -2923 kind = None -2924 this = self._parse_id_var() or self._parse_primary() +2919 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: +2920 literal = self._parse_primary() +2921 if literal: +2922 return self.expression(exp.Introducer, this=token.text, expression=literal) +2923 +2924 return self.expression(exp.Identifier, this=token.text) 2925 -2926 if this and self._match(TokenType.DOT): -2927 kind = this.name -2928 this = self._parse_var() or self._parse_primary() -2929 -2930 return self.expression(exp.SessionParameter, this=this, kind=kind) -2931 -2932 def _parse_lambda(self) -> t.Optional[exp.Expression]: -2933 index = self._index -2934 -2935 if self._match(TokenType.L_PAREN): -2936 expressions = self._parse_csv(self._parse_id_var) -2937 -2938 if not self._match(TokenType.R_PAREN): -2939 self._retreat(index) -2940 else: -2941 expressions = [self._parse_id_var()] -2942 -2943 if self._match_set(self.LAMBDAS): -2944 return self.LAMBDAS[self._prev.token_type](self, expressions) -2945 -2946 self._retreat(index) -2947 -2948 this: t.Optional[exp.Expression] +2926 def _parse_national(self, token: Token) -> exp.Expression: +2927 return self.expression(exp.National, this=exp.Literal.string(token.text)) +2928 +2929 def _parse_session_parameter(self) -> exp.Expression: +2930 kind = None +2931 this = self._parse_id_var() or self._parse_primary() +2932 +2933 if this and self._match(TokenType.DOT): +2934 kind = this.name +2935 this = self._parse_var() or self._parse_primary() +2936 +2937 return self.expression(exp.SessionParameter, this=this, kind=kind) +2938 +2939 def _parse_lambda(self) -> t.Optional[exp.Expression]: +2940 index = self._index +2941 +2942 if self._match(TokenType.L_PAREN): +2943 expressions = self._parse_csv(self._parse_id_var) +2944 +2945 if not self._match(TokenType.R_PAREN): +2946 self._retreat(index) +2947 else: +2948 expressions = [self._parse_id_var()] 2949 -2950 if self._match(TokenType.DISTINCT): -2951 this = self.expression( -2952 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) -2953 ) -2954 else: -2955 this = self._parse_select_or_expression() +2950 if self._match_set(self.LAMBDAS): +2951 return self.LAMBDAS[self._prev.token_type](self, expressions) +2952 +2953 self._retreat(index) +2954 +2955 this: t.Optional[exp.Expression] 2956 -2957 if self._match(TokenType.IGNORE_NULLS): -2958 this = self.expression(exp.IgnoreNulls, this=this) -2959 else: -2960 self._match(TokenType.RESPECT_NULLS) -2961 -2962 return self._parse_limit(self._parse_order(this)) +2957 if self._match(TokenType.DISTINCT): +2958 this = self.expression( +2959 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) +2960 ) +2961 else: +2962 this = self._parse_select_or_expression() 2963 -2964 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: -2965 index = self._index -2966 if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT): -2967 self._retreat(index) -2968 return this -2969 -2970 args = self._parse_csv( -2971 lambda: self._parse_constraint() -2972 or self._parse_column_def(self._parse_field(any_token=True)) -2973 ) -2974 self._match_r_paren() -2975 return self.expression(exp.Schema, this=this, expressions=args) -2976 -2977 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2978 kind = self._parse_types() -2979 -2980 if self._match_text_seq("FOR", "ORDINALITY"): -2981 return self.expression(exp.ColumnDef, this=this, ordinality=True) -2982 -2983 constraints = [] -2984 while True: -2985 constraint = self._parse_column_constraint() -2986 if not constraint: -2987 break -2988 constraints.append(constraint) -2989 -2990 if not kind and not constraints: -2991 return this -2992 -2993 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) +2964 if isinstance(this, exp.EQ): +2965 left = this.this +2966 if isinstance(left, exp.Column): +2967 left.replace(exp.Var(this=left.text("this"))) +2968 +2969 if self._match(TokenType.IGNORE_NULLS): +2970 this = self.expression(exp.IgnoreNulls, this=this) +2971 else: +2972 self._match(TokenType.RESPECT_NULLS) +2973 +2974 return self._parse_limit(self._parse_order(this)) +2975 +2976 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +2977 index = self._index +2978 if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT): +2979 self._retreat(index) +2980 return this +2981 +2982 args = self._parse_csv( +2983 lambda: self._parse_constraint() +2984 or self._parse_column_def(self._parse_field(any_token=True)) +2985 ) +2986 self._match_r_paren() +2987 return self.expression(exp.Schema, this=this, expressions=args) +2988 +2989 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2990 kind = self._parse_types() +2991 +2992 if self._match_text_seq("FOR", "ORDINALITY"): +2993 return self.expression(exp.ColumnDef, this=this, ordinality=True) 2994 -2995 def _parse_auto_increment(self) -> exp.Expression: -2996 start = None -2997 increment = None -2998 -2999 if self._match(TokenType.L_PAREN, advance=False): -3000 args = self._parse_wrapped_csv(self._parse_bitwise) -3001 start = seq_get(args, 0) -3002 increment = seq_get(args, 1) -3003 elif self._match_text_seq("START"): -3004 start = self._parse_bitwise() -3005 self._match_text_seq("INCREMENT") -3006 increment = self._parse_bitwise() -3007 -3008 if start and increment: -3009 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) +2995 constraints = [] +2996 while True: +2997 constraint = self._parse_column_constraint() +2998 if not constraint: +2999 break +3000 constraints.append(constraint) +3001 +3002 if not kind and not constraints: +3003 return this +3004 +3005 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) +3006 +3007 def _parse_auto_increment(self) -> exp.Expression: +3008 start = None +3009 increment = None 3010 -3011 return exp.AutoIncrementColumnConstraint() -3012 -3013 def _parse_compress(self) -> exp.Expression: -3014 if self._match(TokenType.L_PAREN, advance=False): -3015 return self.expression( -3016 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) -3017 ) -3018 -3019 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) -3020 -3021 def _parse_generated_as_identity(self) -> exp.Expression: -3022 if self._match(TokenType.BY_DEFAULT): -3023 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) -3024 else: -3025 self._match_text_seq("ALWAYS") -3026 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) -3027 -3028 self._match_text_seq("AS", "IDENTITY") -3029 if self._match(TokenType.L_PAREN): -3030 if self._match_text_seq("START", "WITH"): -3031 this.set("start", self._parse_bitwise()) -3032 if self._match_text_seq("INCREMENT", "BY"): -3033 this.set("increment", self._parse_bitwise()) -3034 if self._match_text_seq("MINVALUE"): -3035 this.set("minvalue", self._parse_bitwise()) -3036 if self._match_text_seq("MAXVALUE"): -3037 this.set("maxvalue", self._parse_bitwise()) -3038 -3039 if self._match_text_seq("CYCLE"): -3040 this.set("cycle", True) -3041 elif self._match_text_seq("NO", "CYCLE"): -3042 this.set("cycle", False) -3043 -3044 self._match_r_paren() -3045 -3046 return this -3047 -3048 def _parse_inline(self) -> t.Optional[exp.Expression]: -3049 self._match_text_seq("LENGTH") -3050 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) -3051 -3052 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: -3053 if self._match_text_seq("NULL"): -3054 return self.expression(exp.NotNullColumnConstraint) -3055 if self._match_text_seq("CASESPECIFIC"): -3056 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) -3057 return None -3058 -3059 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: -3060 this = self._parse_references() -3061 if this: -3062 return this +3011 if self._match(TokenType.L_PAREN, advance=False): +3012 args = self._parse_wrapped_csv(self._parse_bitwise) +3013 start = seq_get(args, 0) +3014 increment = seq_get(args, 1) +3015 elif self._match_text_seq("START"): +3016 start = self._parse_bitwise() +3017 self._match_text_seq("INCREMENT") +3018 increment = self._parse_bitwise() +3019 +3020 if start and increment: +3021 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) +3022 +3023 return exp.AutoIncrementColumnConstraint() +3024 +3025 def _parse_compress(self) -> exp.Expression: +3026 if self._match(TokenType.L_PAREN, advance=False): +3027 return self.expression( +3028 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) +3029 ) +3030 +3031 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) +3032 +3033 def _parse_generated_as_identity(self) -> exp.Expression: +3034 if self._match(TokenType.BY_DEFAULT): +3035 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) +3036 else: +3037 self._match_text_seq("ALWAYS") +3038 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) +3039 +3040 self._match_text_seq("AS", "IDENTITY") +3041 if self._match(TokenType.L_PAREN): +3042 if self._match_text_seq("START", "WITH"): +3043 this.set("start", self._parse_bitwise()) +3044 if self._match_text_seq("INCREMENT", "BY"): +3045 this.set("increment", self._parse_bitwise()) +3046 if self._match_text_seq("MINVALUE"): +3047 this.set("minvalue", self._parse_bitwise()) +3048 if self._match_text_seq("MAXVALUE"): +3049 this.set("maxvalue", self._parse_bitwise()) +3050 +3051 if self._match_text_seq("CYCLE"): +3052 this.set("cycle", True) +3053 elif self._match_text_seq("NO", "CYCLE"): +3054 this.set("cycle", False) +3055 +3056 self._match_r_paren() +3057 +3058 return this +3059 +3060 def _parse_inline(self) -> t.Optional[exp.Expression]: +3061 self._match_text_seq("LENGTH") +3062 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) 3063 -3064 if self._match(TokenType.CONSTRAINT): -3065 this = self._parse_id_var() -3066 -3067 if self._match_texts(self.CONSTRAINT_PARSERS): -3068 return self.expression( -3069 exp.ColumnConstraint, -3070 this=this, -3071 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), -3072 ) -3073 -3074 return this +3064 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: +3065 if self._match_text_seq("NULL"): +3066 return self.expression(exp.NotNullColumnConstraint) +3067 if self._match_text_seq("CASESPECIFIC"): +3068 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) +3069 return None +3070 +3071 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: +3072 this = self._parse_references() +3073 if this: +3074 return this 3075 -3076 def _parse_constraint(self) -> t.Optional[exp.Expression]: -3077 if not self._match(TokenType.CONSTRAINT): -3078 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) -3079 -3080 this = self._parse_id_var() -3081 expressions = [] -3082 -3083 while True: -3084 constraint = self._parse_unnamed_constraint() or self._parse_function() -3085 if not constraint: -3086 break -3087 expressions.append(constraint) -3088 -3089 return self.expression(exp.Constraint, this=this, expressions=expressions) -3090 -3091 def _parse_unnamed_constraint( -3092 self, constraints: t.Optional[t.Collection[str]] = None -3093 ) -> t.Optional[exp.Expression]: -3094 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): -3095 return None -3096 -3097 constraint = self._prev.text.upper() -3098 if constraint not in self.CONSTRAINT_PARSERS: -3099 self.raise_error(f"No parser found for schema constraint {constraint}.") +3076 if self._match(TokenType.CONSTRAINT): +3077 this = self._parse_id_var() +3078 +3079 if self._match_texts(self.CONSTRAINT_PARSERS): +3080 return self.expression( +3081 exp.ColumnConstraint, +3082 this=this, +3083 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), +3084 ) +3085 +3086 return this +3087 +3088 def _parse_constraint(self) -> t.Optional[exp.Expression]: +3089 if not self._match(TokenType.CONSTRAINT): +3090 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) +3091 +3092 this = self._parse_id_var() +3093 expressions = [] +3094 +3095 while True: +3096 constraint = self._parse_unnamed_constraint() or self._parse_function() +3097 if not constraint: +3098 break +3099 expressions.append(constraint) 3100 -3101 return self.CONSTRAINT_PARSERS[constraint](self) +3101 return self.expression(exp.Constraint, this=this, expressions=expressions) 3102 -3103 def _parse_unique(self) -> exp.Expression: -3104 if not self._match(TokenType.L_PAREN, advance=False): -3105 return self.expression(exp.UniqueColumnConstraint) -3106 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) -3107 -3108 def _parse_key_constraint_options(self) -> t.List[str]: -3109 options = [] -3110 while True: -3111 if not self._curr: -3112 break -3113 -3114 if self._match(TokenType.ON): -3115 action = None -3116 on = self._advance_any() and self._prev.text -3117 -3118 if self._match(TokenType.NO_ACTION): -3119 action = "NO ACTION" -3120 elif self._match(TokenType.CASCADE): -3121 action = "CASCADE" -3122 elif self._match_pair(TokenType.SET, TokenType.NULL): -3123 action = "SET NULL" -3124 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): -3125 action = "SET DEFAULT" -3126 else: -3127 self.raise_error("Invalid key constraint") -3128 -3129 options.append(f"ON {on} {action}") -3130 elif self._match_text_seq("NOT", "ENFORCED"): -3131 options.append("NOT ENFORCED") -3132 elif self._match_text_seq("DEFERRABLE"): -3133 options.append("DEFERRABLE") -3134 elif self._match_text_seq("INITIALLY", "DEFERRED"): -3135 options.append("INITIALLY DEFERRED") -3136 elif self._match_text_seq("NORELY"): -3137 options.append("NORELY") -3138 elif self._match_text_seq("MATCH", "FULL"): -3139 options.append("MATCH FULL") -3140 else: -3141 break -3142 -3143 return options -3144 -3145 def _parse_references(self) -> t.Optional[exp.Expression]: -3146 if not self._match(TokenType.REFERENCES): -3147 return None -3148 -3149 expressions = None -3150 this = self._parse_id_var() -3151 -3152 if self._match(TokenType.L_PAREN, advance=False): -3153 expressions = self._parse_wrapped_id_vars() +3103 def _parse_unnamed_constraint( +3104 self, constraints: t.Optional[t.Collection[str]] = None +3105 ) -> t.Optional[exp.Expression]: +3106 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): +3107 return None +3108 +3109 constraint = self._prev.text.upper() +3110 if constraint not in self.CONSTRAINT_PARSERS: +3111 self.raise_error(f"No parser found for schema constraint {constraint}.") +3112 +3113 return self.CONSTRAINT_PARSERS[constraint](self) +3114 +3115 def _parse_unique(self) -> exp.Expression: +3116 if not self._match(TokenType.L_PAREN, advance=False): +3117 return self.expression(exp.UniqueColumnConstraint) +3118 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) +3119 +3120 def _parse_key_constraint_options(self) -> t.List[str]: +3121 options = [] +3122 while True: +3123 if not self._curr: +3124 break +3125 +3126 if self._match(TokenType.ON): +3127 action = None +3128 on = self._advance_any() and self._prev.text +3129 +3130 if self._match(TokenType.NO_ACTION): +3131 action = "NO ACTION" +3132 elif self._match(TokenType.CASCADE): +3133 action = "CASCADE" +3134 elif self._match_pair(TokenType.SET, TokenType.NULL): +3135 action = "SET NULL" +3136 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): +3137 action = "SET DEFAULT" +3138 else: +3139 self.raise_error("Invalid key constraint") +3140 +3141 options.append(f"ON {on} {action}") +3142 elif self._match_text_seq("NOT", "ENFORCED"): +3143 options.append("NOT ENFORCED") +3144 elif self._match_text_seq("DEFERRABLE"): +3145 options.append("DEFERRABLE") +3146 elif self._match_text_seq("INITIALLY", "DEFERRED"): +3147 options.append("INITIALLY DEFERRED") +3148 elif self._match_text_seq("NORELY"): +3149 options.append("NORELY") +3150 elif self._match_text_seq("MATCH", "FULL"): +3151 options.append("MATCH FULL") +3152 else: +3153 break 3154 -3155 options = self._parse_key_constraint_options() -3156 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) -3157 -3158 def _parse_foreign_key(self) -> exp.Expression: -3159 expressions = self._parse_wrapped_id_vars() -3160 reference = self._parse_references() -3161 options = {} -3162 -3163 while self._match(TokenType.ON): -3164 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): -3165 self.raise_error("Expected DELETE or UPDATE") +3155 return options +3156 +3157 def _parse_references(self) -> t.Optional[exp.Expression]: +3158 if not self._match(TokenType.REFERENCES): +3159 return None +3160 +3161 expressions = None +3162 this = self._parse_id_var() +3163 +3164 if self._match(TokenType.L_PAREN, advance=False): +3165 expressions = self._parse_wrapped_id_vars() 3166 -3167 kind = self._prev.text.lower() -3168 -3169 if self._match(TokenType.NO_ACTION): -3170 action = "NO ACTION" -3171 elif self._match(TokenType.SET): -3172 self._match_set((TokenType.NULL, TokenType.DEFAULT)) -3173 action = "SET " + self._prev.text.upper() -3174 else: -3175 self._advance() -3176 action = self._prev.text.upper() -3177 -3178 options[kind] = action -3179 -3180 return self.expression( -3181 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore -3182 ) -3183 -3184 def _parse_primary_key(self) -> exp.Expression: -3185 desc = ( -3186 self._match_set((TokenType.ASC, TokenType.DESC)) -3187 and self._prev.token_type == TokenType.DESC -3188 ) +3167 options = self._parse_key_constraint_options() +3168 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) +3169 +3170 def _parse_foreign_key(self) -> exp.Expression: +3171 expressions = self._parse_wrapped_id_vars() +3172 reference = self._parse_references() +3173 options = {} +3174 +3175 while self._match(TokenType.ON): +3176 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): +3177 self.raise_error("Expected DELETE or UPDATE") +3178 +3179 kind = self._prev.text.lower() +3180 +3181 if self._match(TokenType.NO_ACTION): +3182 action = "NO ACTION" +3183 elif self._match(TokenType.SET): +3184 self._match_set((TokenType.NULL, TokenType.DEFAULT)) +3185 action = "SET " + self._prev.text.upper() +3186 else: +3187 self._advance() +3188 action = self._prev.text.upper() 3189 -3190 if not self._match(TokenType.L_PAREN, advance=False): -3191 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) -3192 -3193 expressions = self._parse_wrapped_id_vars() -3194 options = self._parse_key_constraint_options() -3195 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) -3196 -3197 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3198 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): -3199 return this -3200 -3201 bracket_kind = self._prev.token_type -3202 expressions: t.List[t.Optional[exp.Expression]] -3203 -3204 if self._match(TokenType.COLON): -3205 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] -3206 else: -3207 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) +3190 options[kind] = action +3191 +3192 return self.expression( +3193 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore +3194 ) +3195 +3196 def _parse_primary_key(self) -> exp.Expression: +3197 desc = ( +3198 self._match_set((TokenType.ASC, TokenType.DESC)) +3199 and self._prev.token_type == TokenType.DESC +3200 ) +3201 +3202 if not self._match(TokenType.L_PAREN, advance=False): +3203 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) +3204 +3205 expressions = self._parse_wrapped_id_vars() +3206 options = self._parse_key_constraint_options() +3207 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) 3208 -3209 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs -3210 if bracket_kind == TokenType.L_BRACE: -3211 this = self.expression(exp.Struct, expressions=expressions) -3212 elif not this or this.name.upper() == "ARRAY": -3213 this = self.expression(exp.Array, expressions=expressions) -3214 else: -3215 expressions = apply_index_offset(expressions, -self.index_offset) -3216 this = self.expression(exp.Bracket, this=this, expressions=expressions) -3217 -3218 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: -3219 self.raise_error("Expected ]") -3220 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: -3221 self.raise_error("Expected }") -3222 -3223 this.comments = self._prev_comments -3224 return self._parse_bracket(this) -3225 -3226 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3227 if self._match(TokenType.COLON): -3228 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) -3229 return this -3230 -3231 def _parse_case(self) -> t.Optional[exp.Expression]: -3232 ifs = [] -3233 default = None +3209 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3210 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): +3211 return this +3212 +3213 bracket_kind = self._prev.token_type +3214 expressions: t.List[t.Optional[exp.Expression]] +3215 +3216 if self._match(TokenType.COLON): +3217 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] +3218 else: +3219 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) +3220 +3221 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs +3222 if bracket_kind == TokenType.L_BRACE: +3223 this = self.expression(exp.Struct, expressions=expressions) +3224 elif not this or this.name.upper() == "ARRAY": +3225 this = self.expression(exp.Array, expressions=expressions) +3226 else: +3227 expressions = apply_index_offset(expressions, -self.index_offset) +3228 this = self.expression(exp.Bracket, this=this, expressions=expressions) +3229 +3230 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: +3231 self.raise_error("Expected ]") +3232 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: +3233 self.raise_error("Expected }") 3234 -3235 expression = self._parse_conjunction() -3236 -3237 while self._match(TokenType.WHEN): -3238 this = self._parse_conjunction() -3239 self._match(TokenType.THEN) -3240 then = self._parse_conjunction() -3241 ifs.append(self.expression(exp.If, this=this, true=then)) +3235 this.comments = self._prev_comments +3236 return self._parse_bracket(this) +3237 +3238 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3239 if self._match(TokenType.COLON): +3240 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) +3241 return this 3242 -3243 if self._match(TokenType.ELSE): -3244 default = self._parse_conjunction() -3245 -3246 if not self._match(TokenType.END): -3247 self.raise_error("Expected END after CASE", self._prev) +3243 def _parse_case(self) -> t.Optional[exp.Expression]: +3244 ifs = [] +3245 default = None +3246 +3247 expression = self._parse_conjunction() 3248 -3249 return self._parse_window( -3250 self.expression(exp.Case, this=expression, ifs=ifs, default=default) -3251 ) -3252 -3253 def _parse_if(self) -> t.Optional[exp.Expression]: -3254 if self._match(TokenType.L_PAREN): -3255 args = self._parse_csv(self._parse_conjunction) -3256 this = exp.If.from_arg_list(args) -3257 self.validate_expression(this, args) -3258 self._match_r_paren() -3259 else: -3260 condition = self._parse_conjunction() -3261 self._match(TokenType.THEN) -3262 true = self._parse_conjunction() -3263 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None -3264 self._match(TokenType.END) -3265 this = self.expression(exp.If, this=condition, true=true, false=false) -3266 -3267 return self._parse_window(this) -3268 -3269 def _parse_extract(self) -> exp.Expression: -3270 this = self._parse_function() or self._parse_var() or self._parse_type() -3271 -3272 if self._match(TokenType.FROM): -3273 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) -3274 -3275 if not self._match(TokenType.COMMA): -3276 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) -3277 -3278 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) -3279 -3280 def _parse_cast(self, strict: bool) -> exp.Expression: -3281 this = self._parse_conjunction() -3282 -3283 if not self._match(TokenType.ALIAS): -3284 self.raise_error("Expected AS after CAST") -3285 -3286 to = self._parse_types() -3287 -3288 if not to: -3289 self.raise_error("Expected TYPE after CAST") -3290 elif to.this == exp.DataType.Type.CHAR: -3291 if self._match(TokenType.CHARACTER_SET): -3292 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) -3293 -3294 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) -3295 -3296 def _parse_string_agg(self) -> exp.Expression: -3297 expression: t.Optional[exp.Expression] -3298 -3299 if self._match(TokenType.DISTINCT): -3300 args = self._parse_csv(self._parse_conjunction) -3301 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) -3302 else: -3303 args = self._parse_csv(self._parse_conjunction) -3304 expression = seq_get(args, 0) +3249 while self._match(TokenType.WHEN): +3250 this = self._parse_conjunction() +3251 self._match(TokenType.THEN) +3252 then = self._parse_conjunction() +3253 ifs.append(self.expression(exp.If, this=this, true=then)) +3254 +3255 if self._match(TokenType.ELSE): +3256 default = self._parse_conjunction() +3257 +3258 if not self._match(TokenType.END): +3259 self.raise_error("Expected END after CASE", self._prev) +3260 +3261 return self._parse_window( +3262 self.expression(exp.Case, this=expression, ifs=ifs, default=default) +3263 ) +3264 +3265 def _parse_if(self) -> t.Optional[exp.Expression]: +3266 if self._match(TokenType.L_PAREN): +3267 args = self._parse_csv(self._parse_conjunction) +3268 this = exp.If.from_arg_list(args) +3269 self.validate_expression(this, args) +3270 self._match_r_paren() +3271 else: +3272 condition = self._parse_conjunction() +3273 self._match(TokenType.THEN) +3274 true = self._parse_conjunction() +3275 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None +3276 self._match(TokenType.END) +3277 this = self.expression(exp.If, this=condition, true=true, false=false) +3278 +3279 return self._parse_window(this) +3280 +3281 def _parse_extract(self) -> exp.Expression: +3282 this = self._parse_function() or self._parse_var() or self._parse_type() +3283 +3284 if self._match(TokenType.FROM): +3285 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3286 +3287 if not self._match(TokenType.COMMA): +3288 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) +3289 +3290 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3291 +3292 def _parse_cast(self, strict: bool) -> exp.Expression: +3293 this = self._parse_conjunction() +3294 +3295 if not self._match(TokenType.ALIAS): +3296 self.raise_error("Expected AS after CAST") +3297 +3298 to = self._parse_types() +3299 +3300 if not to: +3301 self.raise_error("Expected TYPE after CAST") +3302 elif to.this == exp.DataType.Type.CHAR: +3303 if self._match(TokenType.CHARACTER_SET): +3304 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) 3305 -3306 index = self._index -3307 if not self._match(TokenType.R_PAREN): -3308 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) -3309 order = self._parse_order(this=expression) -3310 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) -3311 -3312 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). -3313 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that -3314 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. -3315 if not self._match(TokenType.WITHIN_GROUP): -3316 self._retreat(index) -3317 this = exp.GroupConcat.from_arg_list(args) -3318 self.validate_expression(this, args) -3319 return this -3320 -3321 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) -3322 order = self._parse_order(this=expression) -3323 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) -3324 -3325 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: -3326 to: t.Optional[exp.Expression] -3327 this = self._parse_bitwise() -3328 -3329 if self._match(TokenType.USING): -3330 to = self.expression(exp.CharacterSet, this=self._parse_var()) -3331 elif self._match(TokenType.COMMA): -3332 to = self._parse_bitwise() -3333 else: -3334 to = None -3335 -3336 # Swap the argument order if needed to produce the correct AST -3337 if self.CONVERT_TYPE_FIRST: -3338 this, to = to, this -3339 -3340 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) -3341 -3342 def _parse_json_key_value(self) -> t.Optional[exp.Expression]: -3343 self._match_text_seq("KEY") -3344 key = self._parse_field() -3345 self._match(TokenType.COLON) -3346 self._match_text_seq("VALUE") -3347 value = self._parse_field() -3348 if not key and not value: -3349 return None -3350 return self.expression(exp.JSONKeyValue, this=key, expression=value) +3306 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3307 +3308 def _parse_string_agg(self) -> exp.Expression: +3309 expression: t.Optional[exp.Expression] +3310 +3311 if self._match(TokenType.DISTINCT): +3312 args = self._parse_csv(self._parse_conjunction) +3313 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) +3314 else: +3315 args = self._parse_csv(self._parse_conjunction) +3316 expression = seq_get(args, 0) +3317 +3318 index = self._index +3319 if not self._match(TokenType.R_PAREN): +3320 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) +3321 order = self._parse_order(this=expression) +3322 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3323 +3324 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). +3325 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that +3326 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. +3327 if not self._match(TokenType.WITHIN_GROUP): +3328 self._retreat(index) +3329 this = exp.GroupConcat.from_arg_list(args) +3330 self.validate_expression(this, args) +3331 return this +3332 +3333 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) +3334 order = self._parse_order(this=expression) +3335 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3336 +3337 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: +3338 to: t.Optional[exp.Expression] +3339 this = self._parse_bitwise() +3340 +3341 if self._match(TokenType.USING): +3342 to = self.expression(exp.CharacterSet, this=self._parse_var()) +3343 elif self._match(TokenType.COMMA): +3344 to = self._parse_bitwise() +3345 else: +3346 to = None +3347 +3348 # Swap the argument order if needed to produce the correct AST +3349 if self.CONVERT_TYPE_FIRST: +3350 this, to = to, this 3351 -3352 def _parse_json_object(self) -> exp.Expression: -3353 expressions = self._parse_csv(self._parse_json_key_value) -3354 -3355 null_handling = None -3356 if self._match_text_seq("NULL", "ON", "NULL"): -3357 null_handling = "NULL ON NULL" -3358 elif self._match_text_seq("ABSENT", "ON", "NULL"): -3359 null_handling = "ABSENT ON NULL" +3352 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3353 +3354 def _parse_decode(self) -> t.Optional[exp.Expression]: +3355 """ +3356 There are generally two variants of the DECODE function: +3357 +3358 - DECODE(bin, charset) +3359 - DECODE(expression, search, result [, search, result] ... [, default]) 3360 -3361 unique_keys = None -3362 if self._match_text_seq("WITH", "UNIQUE"): -3363 unique_keys = True -3364 elif self._match_text_seq("WITHOUT", "UNIQUE"): -3365 unique_keys = False +3361 The second variant will always be parsed into a CASE expression. Note that NULL +3362 needs special treatment, since we need to explicitly check for it with `IS NULL`, +3363 instead of relying on pattern matching. +3364 """ +3365 args = self._parse_csv(self._parse_conjunction) 3366 -3367 self._match_text_seq("KEYS") -3368 -3369 return_type = self._match_text_seq("RETURNING") and self._parse_type() -3370 format_json = self._match_text_seq("FORMAT", "JSON") -3371 encoding = self._match_text_seq("ENCODING") and self._parse_var() -3372 -3373 return self.expression( -3374 exp.JSONObject, -3375 expressions=expressions, -3376 null_handling=null_handling, -3377 unique_keys=unique_keys, -3378 return_type=return_type, -3379 format_json=format_json, -3380 encoding=encoding, -3381 ) -3382 -3383 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: -3384 args = self._parse_csv(self._parse_bitwise) -3385 -3386 if self._match(TokenType.IN): -3387 return self.expression( -3388 exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0) -3389 ) -3390 -3391 if haystack_first: -3392 haystack = seq_get(args, 0) -3393 needle = seq_get(args, 1) -3394 else: -3395 needle = seq_get(args, 0) -3396 haystack = seq_get(args, 1) -3397 -3398 this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2)) -3399 -3400 self.validate_expression(this, args) -3401 -3402 return this -3403 -3404 def _parse_join_hint(self, func_name: str) -> exp.Expression: -3405 args = self._parse_csv(self._parse_table) -3406 return exp.JoinHint(this=func_name.upper(), expressions=args) -3407 -3408 def _parse_substring(self) -> exp.Expression: -3409 # Postgres supports the form: substring(string [from int] [for int]) -3410 # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 +3367 if len(args) < 3: +3368 return self.expression(exp.Decode, this=seq_get(args, 0), charset=seq_get(args, 1)) +3369 +3370 expression, *expressions = args +3371 if not expression: +3372 return None +3373 +3374 ifs = [] +3375 for search, result in zip(expressions[::2], expressions[1::2]): +3376 if not search or not result: +3377 return None +3378 +3379 if isinstance(search, exp.Literal): +3380 ifs.append( +3381 exp.If(this=exp.EQ(this=expression.copy(), expression=search), true=result) +3382 ) +3383 elif isinstance(search, exp.Null): +3384 ifs.append( +3385 exp.If(this=exp.Is(this=expression.copy(), expression=exp.Null()), true=result) +3386 ) +3387 else: +3388 cond = exp.or_( +3389 exp.EQ(this=expression.copy(), expression=search), +3390 exp.and_( +3391 exp.Is(this=expression.copy(), expression=exp.Null()), +3392 exp.Is(this=search.copy(), expression=exp.Null()), +3393 ), +3394 ) +3395 ifs.append(exp.If(this=cond, true=result)) +3396 +3397 return exp.Case(ifs=ifs, default=expressions[-1] if len(expressions) % 2 == 1 else None) +3398 +3399 def _parse_json_key_value(self) -> t.Optional[exp.Expression]: +3400 self._match_text_seq("KEY") +3401 key = self._parse_field() +3402 self._match(TokenType.COLON) +3403 self._match_text_seq("VALUE") +3404 value = self._parse_field() +3405 if not key and not value: +3406 return None +3407 return self.expression(exp.JSONKeyValue, this=key, expression=value) +3408 +3409 def _parse_json_object(self) -> exp.Expression: +3410 expressions = self._parse_csv(self._parse_json_key_value) 3411 -3412 args = self._parse_csv(self._parse_bitwise) -3413 -3414 if self._match(TokenType.FROM): -3415 args.append(self._parse_bitwise()) -3416 if self._match(TokenType.FOR): -3417 args.append(self._parse_bitwise()) -3418 -3419 this = exp.Substring.from_arg_list(args) -3420 self.validate_expression(this, args) -3421 -3422 return this +3412 null_handling = None +3413 if self._match_text_seq("NULL", "ON", "NULL"): +3414 null_handling = "NULL ON NULL" +3415 elif self._match_text_seq("ABSENT", "ON", "NULL"): +3416 null_handling = "ABSENT ON NULL" +3417 +3418 unique_keys = None +3419 if self._match_text_seq("WITH", "UNIQUE"): +3420 unique_keys = True +3421 elif self._match_text_seq("WITHOUT", "UNIQUE"): +3422 unique_keys = False 3423 -3424 def _parse_trim(self) -> exp.Expression: -3425 # https://www.w3resource.com/sql/character-functions/trim.php -3426 # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html -3427 -3428 position = None -3429 collation = None -3430 -3431 if self._match_set(self.TRIM_TYPES): -3432 position = self._prev.text.upper() -3433 -3434 expression = self._parse_term() -3435 if self._match_set((TokenType.FROM, TokenType.COMMA)): -3436 this = self._parse_term() -3437 else: -3438 this = expression -3439 expression = None -3440 -3441 if self._match(TokenType.COLLATE): -3442 collation = self._parse_term() +3424 self._match_text_seq("KEYS") +3425 +3426 return_type = self._match_text_seq("RETURNING") and self._parse_type() +3427 format_json = self._match_text_seq("FORMAT", "JSON") +3428 encoding = self._match_text_seq("ENCODING") and self._parse_var() +3429 +3430 return self.expression( +3431 exp.JSONObject, +3432 expressions=expressions, +3433 null_handling=null_handling, +3434 unique_keys=unique_keys, +3435 return_type=return_type, +3436 format_json=format_json, +3437 encoding=encoding, +3438 ) +3439 +3440 def _parse_logarithm(self) -> exp.Expression: +3441 # Default argument order is base, expression +3442 args = self._parse_csv(self._parse_range) 3443 -3444 return self.expression( -3445 exp.Trim, -3446 this=this, -3447 position=position, -3448 expression=expression, -3449 collation=collation, -3450 ) -3451 -3452 def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3453 return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window) -3454 -3455 def _parse_named_window(self) -> t.Optional[exp.Expression]: -3456 return self._parse_window(self._parse_id_var(), alias=True) +3444 if len(args) > 1: +3445 if not self.LOG_BASE_FIRST: +3446 args.reverse() +3447 return exp.Log.from_arg_list(args) +3448 +3449 return self.expression( +3450 exp.Ln if self.LOG_DEFAULTS_TO_LN else exp.Log, this=seq_get(args, 0) +3451 ) +3452 +3453 def _parse_match_against(self) -> exp.Expression: +3454 expressions = self._parse_csv(self._parse_column) +3455 +3456 self._match_text_seq(")", "AGAINST", "(") 3457 -3458 def _parse_window( -3459 self, this: t.Optional[exp.Expression], alias: bool = False -3460 ) -> t.Optional[exp.Expression]: -3461 if self._match_pair(TokenType.FILTER, TokenType.L_PAREN): -3462 this = self.expression(exp.Filter, this=this, expression=self._parse_where()) -3463 self._match_r_paren() -3464 -3465 # T-SQL allows the OVER (...) syntax after WITHIN GROUP. -3466 # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16 -3467 if self._match(TokenType.WITHIN_GROUP): -3468 order = self._parse_wrapped(self._parse_order) -3469 this = self.expression(exp.WithinGroup, this=this, expression=order) +3458 this = self._parse_string() +3459 +3460 if self._match_text_seq("IN", "NATURAL", "LANGUAGE", "MODE"): +3461 modifier = "IN NATURAL LANGUAGE MODE" +3462 if self._match_text_seq("WITH", "QUERY", "EXPANSION"): +3463 modifier = f"{modifier} WITH QUERY EXPANSION" +3464 elif self._match_text_seq("IN", "BOOLEAN", "MODE"): +3465 modifier = "IN BOOLEAN MODE" +3466 elif self._match_text_seq("WITH", "QUERY", "EXPANSION"): +3467 modifier = "WITH QUERY EXPANSION" +3468 else: +3469 modifier = None 3470 -3471 # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER -3472 # Some dialects choose to implement and some do not. -3473 # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html +3471 return self.expression( +3472 exp.MatchAgainst, this=this, expressions=expressions, modifier=modifier +3473 ) 3474 -3475 # There is some code above in _parse_lambda that handles -3476 # SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ... +3475 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: +3476 args = self._parse_csv(self._parse_bitwise) 3477 -3478 # The below changes handle -3479 # SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ... -3480 -3481 # Oracle allows both formats -3482 # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) -3483 # and Snowflake chose to do the same for familiarity -3484 # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes -3485 if self._match(TokenType.IGNORE_NULLS): -3486 this = self.expression(exp.IgnoreNulls, this=this) -3487 elif self._match(TokenType.RESPECT_NULLS): -3488 this = self.expression(exp.RespectNulls, this=this) +3478 if self._match(TokenType.IN): +3479 return self.expression( +3480 exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0) +3481 ) +3482 +3483 if haystack_first: +3484 haystack = seq_get(args, 0) +3485 needle = seq_get(args, 1) +3486 else: +3487 needle = seq_get(args, 0) +3488 haystack = seq_get(args, 1) 3489 -3490 # bigquery select from window x AS (partition by ...) -3491 if alias: -3492 self._match(TokenType.ALIAS) -3493 elif not self._match(TokenType.OVER): -3494 return this +3490 this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2)) +3491 +3492 self.validate_expression(this, args) +3493 +3494 return this 3495 -3496 if not self._match(TokenType.L_PAREN): -3497 return self.expression(exp.Window, this=this, alias=self._parse_id_var(False)) -3498 -3499 window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS) -3500 partition = self._parse_partition_by() -3501 order = self._parse_order() -3502 kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text +3496 def _parse_join_hint(self, func_name: str) -> exp.Expression: +3497 args = self._parse_csv(self._parse_table) +3498 return exp.JoinHint(this=func_name.upper(), expressions=args) +3499 +3500 def _parse_substring(self) -> exp.Expression: +3501 # Postgres supports the form: substring(string [from int] [for int]) +3502 # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 3503 -3504 if kind: -3505 self._match(TokenType.BETWEEN) -3506 start = self._parse_window_spec() -3507 self._match(TokenType.AND) -3508 end = self._parse_window_spec() -3509 -3510 spec = self.expression( -3511 exp.WindowSpec, -3512 kind=kind, -3513 start=start["value"], -3514 start_side=start["side"], -3515 end=end["value"], -3516 end_side=end["side"], -3517 ) -3518 else: -3519 spec = None -3520 -3521 self._match_r_paren() +3504 args = self._parse_csv(self._parse_bitwise) +3505 +3506 if self._match(TokenType.FROM): +3507 args.append(self._parse_bitwise()) +3508 if self._match(TokenType.FOR): +3509 args.append(self._parse_bitwise()) +3510 +3511 this = exp.Substring.from_arg_list(args) +3512 self.validate_expression(this, args) +3513 +3514 return this +3515 +3516 def _parse_trim(self) -> exp.Expression: +3517 # https://www.w3resource.com/sql/character-functions/trim.php +3518 # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html +3519 +3520 position = None +3521 collation = None 3522 -3523 return self.expression( -3524 exp.Window, -3525 this=this, -3526 partition_by=partition, -3527 order=order, -3528 spec=spec, -3529 alias=window_alias, -3530 ) -3531 -3532 def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]: -3533 self._match(TokenType.BETWEEN) -3534 -3535 return { -3536 "value": ( -3537 self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text -3538 ) -3539 or self._parse_bitwise(), -3540 "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text, -3541 } -3542 -3543 def _parse_alias( -3544 self, this: t.Optional[exp.Expression], explicit: bool = False -3545 ) -> t.Optional[exp.Expression]: -3546 any_token = self._match(TokenType.ALIAS) -3547 -3548 if explicit and not any_token: -3549 return this -3550 -3551 if self._match(TokenType.L_PAREN): -3552 aliases = self.expression( -3553 exp.Aliases, -3554 this=this, -3555 expressions=self._parse_csv(lambda: self._parse_id_var(any_token)), -3556 ) -3557 self._match_r_paren(aliases) -3558 return aliases -3559 -3560 alias = self._parse_id_var(any_token) -3561 -3562 if alias: -3563 return self.expression(exp.Alias, this=this, alias=alias) -3564 -3565 return this +3523 if self._match_set(self.TRIM_TYPES): +3524 position = self._prev.text.upper() +3525 +3526 expression = self._parse_term() +3527 if self._match_set((TokenType.FROM, TokenType.COMMA)): +3528 this = self._parse_term() +3529 else: +3530 this = expression +3531 expression = None +3532 +3533 if self._match(TokenType.COLLATE): +3534 collation = self._parse_term() +3535 +3536 return self.expression( +3537 exp.Trim, +3538 this=this, +3539 position=position, +3540 expression=expression, +3541 collation=collation, +3542 ) +3543 +3544 def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3545 return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window) +3546 +3547 def _parse_named_window(self) -> t.Optional[exp.Expression]: +3548 return self._parse_window(self._parse_id_var(), alias=True) +3549 +3550 def _parse_window( +3551 self, this: t.Optional[exp.Expression], alias: bool = False +3552 ) -> t.Optional[exp.Expression]: +3553 if self._match_pair(TokenType.FILTER, TokenType.L_PAREN): +3554 this = self.expression(exp.Filter, this=this, expression=self._parse_where()) +3555 self._match_r_paren() +3556 +3557 # T-SQL allows the OVER (...) syntax after WITHIN GROUP. +3558 # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16 +3559 if self._match(TokenType.WITHIN_GROUP): +3560 order = self._parse_wrapped(self._parse_order) +3561 this = self.expression(exp.WithinGroup, this=this, expression=order) +3562 +3563 # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER +3564 # Some dialects choose to implement and some do not. +3565 # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html 3566 -3567 def _parse_id_var( -3568 self, -3569 any_token: bool = True, -3570 tokens: t.Optional[t.Collection[TokenType]] = None, -3571 prefix_tokens: t.Optional[t.Collection[TokenType]] = None, -3572 ) -> t.Optional[exp.Expression]: -3573 identifier = self._parse_identifier() -3574 -3575 if identifier: -3576 return identifier -3577 -3578 prefix = "" -3579 -3580 if prefix_tokens: -3581 while self._match_set(prefix_tokens): -3582 prefix += self._prev.text -3583 -3584 if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS): -3585 quoted = self._prev.token_type == TokenType.STRING -3586 return exp.Identifier(this=prefix + self._prev.text, quoted=quoted) +3567 # There is some code above in _parse_lambda that handles +3568 # SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ... +3569 +3570 # The below changes handle +3571 # SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ... +3572 +3573 # Oracle allows both formats +3574 # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) +3575 # and Snowflake chose to do the same for familiarity +3576 # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes +3577 if self._match(TokenType.IGNORE_NULLS): +3578 this = self.expression(exp.IgnoreNulls, this=this) +3579 elif self._match(TokenType.RESPECT_NULLS): +3580 this = self.expression(exp.RespectNulls, this=this) +3581 +3582 # bigquery select from window x AS (partition by ...) +3583 if alias: +3584 self._match(TokenType.ALIAS) +3585 elif not self._match(TokenType.OVER): +3586 return this 3587 -3588 return None -3589 -3590 def _parse_string(self) -> t.Optional[exp.Expression]: -3591 if self._match(TokenType.STRING): -3592 return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev) -3593 return self._parse_placeholder() -3594 -3595 def _parse_string_as_identifier(self) -> t.Optional[exp.Expression]: -3596 return exp.to_identifier(self._match(TokenType.STRING) and self._prev.text, quoted=True) -3597 -3598 def _parse_number(self) -> t.Optional[exp.Expression]: -3599 if self._match(TokenType.NUMBER): -3600 return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev) -3601 return self._parse_placeholder() -3602 -3603 def _parse_identifier(self) -> t.Optional[exp.Expression]: -3604 if self._match(TokenType.IDENTIFIER): -3605 return self.expression(exp.Identifier, this=self._prev.text, quoted=True) -3606 return self._parse_placeholder() -3607 -3608 def _parse_var( -3609 self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None -3610 ) -> t.Optional[exp.Expression]: -3611 if ( -3612 (any_token and self._advance_any()) -3613 or self._match(TokenType.VAR) -3614 or (self._match_set(tokens) if tokens else False) -3615 ): -3616 return self.expression(exp.Var, this=self._prev.text) -3617 return self._parse_placeholder() -3618 -3619 def _advance_any(self) -> t.Optional[Token]: -3620 if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS: -3621 self._advance() -3622 return self._prev -3623 return None -3624 -3625 def _parse_var_or_string(self) -> t.Optional[exp.Expression]: -3626 return self._parse_var() or self._parse_string() -3627 -3628 def _parse_null(self) -> t.Optional[exp.Expression]: -3629 if self._match(TokenType.NULL): -3630 return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev) -3631 return None -3632 -3633 def _parse_boolean(self) -> t.Optional[exp.Expression]: -3634 if self._match(TokenType.TRUE): -3635 return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev) -3636 if self._match(TokenType.FALSE): -3637 return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev) -3638 return None +3588 if not self._match(TokenType.L_PAREN): +3589 return self.expression(exp.Window, this=this, alias=self._parse_id_var(False)) +3590 +3591 window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS) +3592 partition = self._parse_partition_by() +3593 order = self._parse_order() +3594 kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text +3595 +3596 if kind: +3597 self._match(TokenType.BETWEEN) +3598 start = self._parse_window_spec() +3599 self._match(TokenType.AND) +3600 end = self._parse_window_spec() +3601 +3602 spec = self.expression( +3603 exp.WindowSpec, +3604 kind=kind, +3605 start=start["value"], +3606 start_side=start["side"], +3607 end=end["value"], +3608 end_side=end["side"], +3609 ) +3610 else: +3611 spec = None +3612 +3613 self._match_r_paren() +3614 +3615 return self.expression( +3616 exp.Window, +3617 this=this, +3618 partition_by=partition, +3619 order=order, +3620 spec=spec, +3621 alias=window_alias, +3622 ) +3623 +3624 def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]: +3625 self._match(TokenType.BETWEEN) +3626 +3627 return { +3628 "value": ( +3629 self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text +3630 ) +3631 or self._parse_bitwise(), +3632 "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text, +3633 } +3634 +3635 def _parse_alias( +3636 self, this: t.Optional[exp.Expression], explicit: bool = False +3637 ) -> t.Optional[exp.Expression]: +3638 any_token = self._match(TokenType.ALIAS) 3639 -3640 def _parse_star(self) -> t.Optional[exp.Expression]: -3641 if self._match(TokenType.STAR): -3642 return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev) -3643 return None -3644 -3645 def _parse_parameter(self) -> exp.Expression: -3646 wrapped = self._match(TokenType.L_BRACE) -3647 this = self._parse_var() or self._parse_primary() -3648 self._match(TokenType.R_BRACE) -3649 return self.expression(exp.Parameter, this=this, wrapped=wrapped) -3650 -3651 def _parse_placeholder(self) -> t.Optional[exp.Expression]: -3652 if self._match_set(self.PLACEHOLDER_PARSERS): -3653 placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self) -3654 if placeholder: -3655 return placeholder -3656 self._advance(-1) -3657 return None +3640 if explicit and not any_token: +3641 return this +3642 +3643 if self._match(TokenType.L_PAREN): +3644 aliases = self.expression( +3645 exp.Aliases, +3646 this=this, +3647 expressions=self._parse_csv(lambda: self._parse_id_var(any_token)), +3648 ) +3649 self._match_r_paren(aliases) +3650 return aliases +3651 +3652 alias = self._parse_id_var(any_token) +3653 +3654 if alias: +3655 return self.expression(exp.Alias, this=this, alias=alias) +3656 +3657 return this 3658 -3659 def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3660 if not self._match(TokenType.EXCEPT): -3661 return None -3662 if self._match(TokenType.L_PAREN, advance=False): -3663 return self._parse_wrapped_csv(self._parse_column) -3664 return self._parse_csv(self._parse_column) -3665 -3666 def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3667 if not self._match(TokenType.REPLACE): -3668 return None -3669 if self._match(TokenType.L_PAREN, advance=False): -3670 return self._parse_wrapped_csv(self._parse_expression) -3671 return self._parse_csv(self._parse_expression) -3672 -3673 def _parse_csv( -3674 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA -3675 ) -> t.List[t.Optional[exp.Expression]]: -3676 parse_result = parse_method() -3677 items = [parse_result] if parse_result is not None else [] -3678 -3679 while self._match(sep): -3680 if parse_result and self._prev_comments: -3681 parse_result.comments = self._prev_comments -3682 -3683 parse_result = parse_method() -3684 if parse_result is not None: -3685 items.append(parse_result) +3659 def _parse_id_var( +3660 self, +3661 any_token: bool = True, +3662 tokens: t.Optional[t.Collection[TokenType]] = None, +3663 prefix_tokens: t.Optional[t.Collection[TokenType]] = None, +3664 ) -> t.Optional[exp.Expression]: +3665 identifier = self._parse_identifier() +3666 +3667 if identifier: +3668 return identifier +3669 +3670 prefix = "" +3671 +3672 if prefix_tokens: +3673 while self._match_set(prefix_tokens): +3674 prefix += self._prev.text +3675 +3676 if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS): +3677 quoted = self._prev.token_type == TokenType.STRING +3678 return exp.Identifier(this=prefix + self._prev.text, quoted=quoted) +3679 +3680 return None +3681 +3682 def _parse_string(self) -> t.Optional[exp.Expression]: +3683 if self._match(TokenType.STRING): +3684 return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev) +3685 return self._parse_placeholder() 3686 -3687 return items -3688 -3689 def _parse_tokens( -3690 self, parse_method: t.Callable, expressions: t.Dict -3691 ) -> t.Optional[exp.Expression]: -3692 this = parse_method() -3693 -3694 while self._match_set(expressions): -3695 this = self.expression( -3696 expressions[self._prev.token_type], -3697 this=this, -3698 comments=self._prev_comments, -3699 expression=parse_method(), -3700 ) -3701 -3702 return this -3703 -3704 def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]: -3705 return self._parse_wrapped_csv(self._parse_id_var) -3706 -3707 def _parse_wrapped_csv( -3708 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA -3709 ) -> t.List[t.Optional[exp.Expression]]: -3710 return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep)) -3711 -3712 def _parse_wrapped(self, parse_method: t.Callable) -> t.Any: -3713 self._match_l_paren() -3714 parse_result = parse_method() -3715 self._match_r_paren() -3716 return parse_result -3717 -3718 def _parse_select_or_expression(self) -> t.Optional[exp.Expression]: -3719 return self._parse_select() or self._parse_set_operations(self._parse_expression()) -3720 -3721 def _parse_ddl_select(self) -> t.Optional[exp.Expression]: -3722 return self._parse_set_operations( -3723 self._parse_select(nested=True, parse_subquery_alias=False) -3724 ) -3725 -3726 def _parse_transaction(self) -> exp.Expression: -3727 this = None -3728 if self._match_texts(self.TRANSACTION_KIND): -3729 this = self._prev.text -3730 -3731 self._match_texts({"TRANSACTION", "WORK"}) -3732 -3733 modes = [] -3734 while True: -3735 mode = [] -3736 while self._match(TokenType.VAR): -3737 mode.append(self._prev.text) -3738 -3739 if mode: -3740 modes.append(" ".join(mode)) -3741 if not self._match(TokenType.COMMA): -3742 break -3743 -3744 return self.expression(exp.Transaction, this=this, modes=modes) -3745 -3746 def _parse_commit_or_rollback(self) -> exp.Expression: -3747 chain = None -3748 savepoint = None -3749 is_rollback = self._prev.token_type == TokenType.ROLLBACK +3687 def _parse_string_as_identifier(self) -> t.Optional[exp.Expression]: +3688 return exp.to_identifier(self._match(TokenType.STRING) and self._prev.text, quoted=True) +3689 +3690 def _parse_number(self) -> t.Optional[exp.Expression]: +3691 if self._match(TokenType.NUMBER): +3692 return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev) +3693 return self._parse_placeholder() +3694 +3695 def _parse_identifier(self) -> t.Optional[exp.Expression]: +3696 if self._match(TokenType.IDENTIFIER): +3697 return self.expression(exp.Identifier, this=self._prev.text, quoted=True) +3698 return self._parse_placeholder() +3699 +3700 def _parse_var( +3701 self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None +3702 ) -> t.Optional[exp.Expression]: +3703 if ( +3704 (any_token and self._advance_any()) +3705 or self._match(TokenType.VAR) +3706 or (self._match_set(tokens) if tokens else False) +3707 ): +3708 return self.expression(exp.Var, this=self._prev.text) +3709 return self._parse_placeholder() +3710 +3711 def _advance_any(self) -> t.Optional[Token]: +3712 if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS: +3713 self._advance() +3714 return self._prev +3715 return None +3716 +3717 def _parse_var_or_string(self) -> t.Optional[exp.Expression]: +3718 return self._parse_var() or self._parse_string() +3719 +3720 def _parse_null(self) -> t.Optional[exp.Expression]: +3721 if self._match(TokenType.NULL): +3722 return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev) +3723 return None +3724 +3725 def _parse_boolean(self) -> t.Optional[exp.Expression]: +3726 if self._match(TokenType.TRUE): +3727 return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev) +3728 if self._match(TokenType.FALSE): +3729 return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev) +3730 return None +3731 +3732 def _parse_star(self) -> t.Optional[exp.Expression]: +3733 if self._match(TokenType.STAR): +3734 return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev) +3735 return None +3736 +3737 def _parse_parameter(self) -> exp.Expression: +3738 wrapped = self._match(TokenType.L_BRACE) +3739 this = self._parse_var() or self._parse_primary() +3740 self._match(TokenType.R_BRACE) +3741 return self.expression(exp.Parameter, this=this, wrapped=wrapped) +3742 +3743 def _parse_placeholder(self) -> t.Optional[exp.Expression]: +3744 if self._match_set(self.PLACEHOLDER_PARSERS): +3745 placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self) +3746 if placeholder: +3747 return placeholder +3748 self._advance(-1) +3749 return None 3750 -3751 self._match_texts({"TRANSACTION", "WORK"}) -3752 -3753 if self._match_text_seq("TO"): -3754 self._match_text_seq("SAVEPOINT") -3755 savepoint = self._parse_id_var() -3756 -3757 if self._match(TokenType.AND): -3758 chain = not self._match_text_seq("NO") -3759 self._match_text_seq("CHAIN") -3760 -3761 if is_rollback: -3762 return self.expression(exp.Rollback, savepoint=savepoint) -3763 return self.expression(exp.Commit, chain=chain) +3751 def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3752 if not self._match(TokenType.EXCEPT): +3753 return None +3754 if self._match(TokenType.L_PAREN, advance=False): +3755 return self._parse_wrapped_csv(self._parse_column) +3756 return self._parse_csv(self._parse_column) +3757 +3758 def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3759 if not self._match(TokenType.REPLACE): +3760 return None +3761 if self._match(TokenType.L_PAREN, advance=False): +3762 return self._parse_wrapped_csv(self._parse_expression) +3763 return self._parse_csv(self._parse_expression) 3764 -3765 def _parse_add_column(self) -> t.Optional[exp.Expression]: -3766 if not self._match_text_seq("ADD"): -3767 return None -3768 -3769 self._match(TokenType.COLUMN) -3770 exists_column = self._parse_exists(not_=True) -3771 expression = self._parse_column_def(self._parse_field(any_token=True)) -3772 -3773 if expression: -3774 expression.set("exists", exists_column) -3775 -3776 return expression -3777 -3778 def _parse_drop_column(self) -> t.Optional[exp.Expression]: -3779 return self._match(TokenType.DROP) and self._parse_drop(default_kind="COLUMN") +3765 def _parse_csv( +3766 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA +3767 ) -> t.List[t.Optional[exp.Expression]]: +3768 parse_result = parse_method() +3769 items = [parse_result] if parse_result is not None else [] +3770 +3771 while self._match(sep): +3772 if parse_result and self._prev_comments: +3773 parse_result.comments = self._prev_comments +3774 +3775 parse_result = parse_method() +3776 if parse_result is not None: +3777 items.append(parse_result) +3778 +3779 return items 3780 -3781 # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html -3782 def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression: -3783 return self.expression( -3784 exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists -3785 ) -3786 -3787 def _parse_add_constraint(self) -> t.Optional[exp.Expression]: -3788 this = None -3789 kind = self._prev.token_type -3790 -3791 if kind == TokenType.CONSTRAINT: -3792 this = self._parse_id_var() +3781 def _parse_tokens( +3782 self, parse_method: t.Callable, expressions: t.Dict +3783 ) -> t.Optional[exp.Expression]: +3784 this = parse_method() +3785 +3786 while self._match_set(expressions): +3787 this = self.expression( +3788 expressions[self._prev.token_type], +3789 this=this, +3790 comments=self._prev_comments, +3791 expression=parse_method(), +3792 ) 3793 -3794 if self._match_text_seq("CHECK"): -3795 expression = self._parse_wrapped(self._parse_conjunction) -3796 enforced = self._match_text_seq("ENFORCED") -3797 -3798 return self.expression( -3799 exp.AddConstraint, this=this, expression=expression, enforced=enforced -3800 ) -3801 -3802 if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY): -3803 expression = self._parse_foreign_key() -3804 elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY): -3805 expression = self._parse_primary_key() -3806 -3807 return self.expression(exp.AddConstraint, this=this, expression=expression) -3808 -3809 def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]: -3810 index = self._index - 1 -3811 -3812 if self._match_set(self.ADD_CONSTRAINT_TOKENS): -3813 return self._parse_csv(self._parse_add_constraint) -3814 -3815 self._retreat(index) -3816 return self._parse_csv(self._parse_add_column) +3794 return this +3795 +3796 def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]: +3797 return self._parse_wrapped_csv(self._parse_id_var) +3798 +3799 def _parse_wrapped_csv( +3800 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA +3801 ) -> t.List[t.Optional[exp.Expression]]: +3802 return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep)) +3803 +3804 def _parse_wrapped(self, parse_method: t.Callable) -> t.Any: +3805 self._match_l_paren() +3806 parse_result = parse_method() +3807 self._match_r_paren() +3808 return parse_result +3809 +3810 def _parse_select_or_expression(self) -> t.Optional[exp.Expression]: +3811 return self._parse_select() or self._parse_set_operations(self._parse_expression()) +3812 +3813 def _parse_ddl_select(self) -> t.Optional[exp.Expression]: +3814 return self._parse_set_operations( +3815 self._parse_select(nested=True, parse_subquery_alias=False) +3816 ) 3817 -3818 def _parse_alter_table_alter(self) -> exp.Expression: -3819 self._match(TokenType.COLUMN) -3820 column = self._parse_field(any_token=True) -3821 -3822 if self._match_pair(TokenType.DROP, TokenType.DEFAULT): -3823 return self.expression(exp.AlterColumn, this=column, drop=True) -3824 if self._match_pair(TokenType.SET, TokenType.DEFAULT): -3825 return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction()) -3826 -3827 self._match_text_seq("SET", "DATA") -3828 return self.expression( -3829 exp.AlterColumn, -3830 this=column, -3831 dtype=self._match_text_seq("TYPE") and self._parse_types(), -3832 collate=self._match(TokenType.COLLATE) and self._parse_term(), -3833 using=self._match(TokenType.USING) and self._parse_conjunction(), -3834 ) +3818 def _parse_transaction(self) -> exp.Expression: +3819 this = None +3820 if self._match_texts(self.TRANSACTION_KIND): +3821 this = self._prev.text +3822 +3823 self._match_texts({"TRANSACTION", "WORK"}) +3824 +3825 modes = [] +3826 while True: +3827 mode = [] +3828 while self._match(TokenType.VAR): +3829 mode.append(self._prev.text) +3830 +3831 if mode: +3832 modes.append(" ".join(mode)) +3833 if not self._match(TokenType.COMMA): +3834 break 3835 -3836 def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]: -3837 index = self._index - 1 -3838 -3839 partition_exists = self._parse_exists() -3840 if self._match(TokenType.PARTITION, advance=False): -3841 return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists)) +3836 return self.expression(exp.Transaction, this=this, modes=modes) +3837 +3838 def _parse_commit_or_rollback(self) -> exp.Expression: +3839 chain = None +3840 savepoint = None +3841 is_rollback = self._prev.token_type == TokenType.ROLLBACK 3842 -3843 self._retreat(index) -3844 return self._parse_csv(self._parse_drop_column) -3845 -3846 def _parse_alter_table_rename(self) -> exp.Expression: -3847 self._match_text_seq("TO") -3848 return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) -3849 -3850 def _parse_alter(self) -> t.Optional[exp.Expression]: -3851 start = self._prev +3843 self._match_texts({"TRANSACTION", "WORK"}) +3844 +3845 if self._match_text_seq("TO"): +3846 self._match_text_seq("SAVEPOINT") +3847 savepoint = self._parse_id_var() +3848 +3849 if self._match(TokenType.AND): +3850 chain = not self._match_text_seq("NO") +3851 self._match_text_seq("CHAIN") 3852 -3853 if not self._match(TokenType.TABLE): -3854 return self._parse_as_command(start) -3855 -3856 exists = self._parse_exists() -3857 this = self._parse_table(schema=True) -3858 -3859 if self._next: -3860 self._advance() -3861 parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None -3862 -3863 if parser: -3864 return self.expression( -3865 exp.AlterTable, -3866 this=this, -3867 exists=exists, -3868 actions=ensure_list(parser(self)), -3869 ) -3870 return self._parse_as_command(start) -3871 -3872 def _parse_merge(self) -> exp.Expression: -3873 self._match(TokenType.INTO) -3874 target = self._parse_table() +3853 if is_rollback: +3854 return self.expression(exp.Rollback, savepoint=savepoint) +3855 return self.expression(exp.Commit, chain=chain) +3856 +3857 def _parse_add_column(self) -> t.Optional[exp.Expression]: +3858 if not self._match_text_seq("ADD"): +3859 return None +3860 +3861 self._match(TokenType.COLUMN) +3862 exists_column = self._parse_exists(not_=True) +3863 expression = self._parse_column_def(self._parse_field(any_token=True)) +3864 +3865 if expression: +3866 expression.set("exists", exists_column) +3867 +3868 # https://docs.databricks.com/delta/update-schema.html#explicitly-update-schema-to-add-columns +3869 if self._match_texts(("FIRST", "AFTER")): +3870 position = self._prev.text +3871 column_position = self.expression( +3872 exp.ColumnPosition, this=self._parse_column(), position=position +3873 ) +3874 expression.set("position", column_position) 3875 -3876 self._match(TokenType.USING) -3877 using = self._parse_table() -3878 -3879 self._match(TokenType.ON) -3880 on = self._parse_conjunction() -3881 -3882 whens = [] -3883 while self._match(TokenType.WHEN): -3884 matched = not self._match(TokenType.NOT) -3885 self._match_text_seq("MATCHED") -3886 source = ( -3887 False -3888 if self._match_text_seq("BY", "TARGET") -3889 else self._match_text_seq("BY", "SOURCE") -3890 ) -3891 condition = self._parse_conjunction() if self._match(TokenType.AND) else None -3892 -3893 self._match(TokenType.THEN) -3894 -3895 if self._match(TokenType.INSERT): -3896 _this = self._parse_star() -3897 if _this: -3898 then = self.expression(exp.Insert, this=_this) -3899 else: -3900 then = self.expression( -3901 exp.Insert, -3902 this=self._parse_value(), -3903 expression=self._match(TokenType.VALUES) and self._parse_value(), -3904 ) -3905 elif self._match(TokenType.UPDATE): -3906 expressions = self._parse_star() -3907 if expressions: -3908 then = self.expression(exp.Update, expressions=expressions) -3909 else: -3910 then = self.expression( -3911 exp.Update, -3912 expressions=self._match(TokenType.SET) -3913 and self._parse_csv(self._parse_equality), -3914 ) -3915 elif self._match(TokenType.DELETE): -3916 then = self.expression(exp.Var, this=self._prev.text) -3917 else: -3918 then = None +3876 return expression +3877 +3878 def _parse_drop_column(self) -> t.Optional[exp.Expression]: +3879 return self._match(TokenType.DROP) and self._parse_drop(default_kind="COLUMN") +3880 +3881 # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html +3882 def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression: +3883 return self.expression( +3884 exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists +3885 ) +3886 +3887 def _parse_add_constraint(self) -> t.Optional[exp.Expression]: +3888 this = None +3889 kind = self._prev.token_type +3890 +3891 if kind == TokenType.CONSTRAINT: +3892 this = self._parse_id_var() +3893 +3894 if self._match_text_seq("CHECK"): +3895 expression = self._parse_wrapped(self._parse_conjunction) +3896 enforced = self._match_text_seq("ENFORCED") +3897 +3898 return self.expression( +3899 exp.AddConstraint, this=this, expression=expression, enforced=enforced +3900 ) +3901 +3902 if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY): +3903 expression = self._parse_foreign_key() +3904 elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY): +3905 expression = self._parse_primary_key() +3906 else: +3907 expression = None +3908 +3909 return self.expression(exp.AddConstraint, this=this, expression=expression) +3910 +3911 def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]: +3912 index = self._index - 1 +3913 +3914 if self._match_set(self.ADD_CONSTRAINT_TOKENS): +3915 return self._parse_csv(self._parse_add_constraint) +3916 +3917 self._retreat(index) +3918 return self._parse_csv(self._parse_add_column) 3919 -3920 whens.append( -3921 self.expression( -3922 exp.When, -3923 matched=matched, -3924 source=source, -3925 condition=condition, -3926 then=then, -3927 ) -3928 ) -3929 +3920 def _parse_alter_table_alter(self) -> exp.Expression: +3921 self._match(TokenType.COLUMN) +3922 column = self._parse_field(any_token=True) +3923 +3924 if self._match_pair(TokenType.DROP, TokenType.DEFAULT): +3925 return self.expression(exp.AlterColumn, this=column, drop=True) +3926 if self._match_pair(TokenType.SET, TokenType.DEFAULT): +3927 return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction()) +3928 +3929 self._match_text_seq("SET", "DATA") 3930 return self.expression( -3931 exp.Merge, -3932 this=target, -3933 using=using, -3934 on=on, -3935 expressions=whens, +3931 exp.AlterColumn, +3932 this=column, +3933 dtype=self._match_text_seq("TYPE") and self._parse_types(), +3934 collate=self._match(TokenType.COLLATE) and self._parse_term(), +3935 using=self._match(TokenType.USING) and self._parse_conjunction(), 3936 ) 3937 -3938 def _parse_show(self) -> t.Optional[exp.Expression]: -3939 parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore -3940 if parser: -3941 return parser(self) -3942 self._advance() -3943 return self.expression(exp.Show, this=self._prev.text.upper()) +3938 def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]: +3939 index = self._index - 1 +3940 +3941 partition_exists = self._parse_exists() +3942 if self._match(TokenType.PARTITION, advance=False): +3943 return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists)) 3944 -3945 def _parse_set_item_assignment( -3946 self, kind: t.Optional[str] = None -3947 ) -> t.Optional[exp.Expression]: -3948 index = self._index -3949 -3950 if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"): -3951 return self._parse_set_transaction(global_=kind == "GLOBAL") -3952 -3953 left = self._parse_primary() or self._parse_id_var() +3945 self._retreat(index) +3946 return self._parse_csv(self._parse_drop_column) +3947 +3948 def _parse_alter_table_rename(self) -> exp.Expression: +3949 self._match_text_seq("TO") +3950 return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) +3951 +3952 def _parse_alter(self) -> t.Optional[exp.Expression]: +3953 start = self._prev 3954 -3955 if not self._match_texts(("=", "TO")): -3956 self._retreat(index) -3957 return None -3958 -3959 right = self._parse_statement() or self._parse_id_var() -3960 this = self.expression( -3961 exp.EQ, -3962 this=left, -3963 expression=right, -3964 ) -3965 -3966 return self.expression( -3967 exp.SetItem, -3968 this=this, -3969 kind=kind, -3970 ) -3971 -3972 def _parse_set_transaction(self, global_: bool = False) -> exp.Expression: -3973 self._match_text_seq("TRANSACTION") -3974 characteristics = self._parse_csv( -3975 lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS) -3976 ) -3977 return self.expression( -3978 exp.SetItem, -3979 expressions=characteristics, -3980 kind="TRANSACTION", -3981 **{"global": global_}, # type: ignore -3982 ) +3955 if not self._match(TokenType.TABLE): +3956 return self._parse_as_command(start) +3957 +3958 exists = self._parse_exists() +3959 this = self._parse_table(schema=True) +3960 +3961 if self._next: +3962 self._advance() +3963 parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None +3964 +3965 if parser: +3966 actions = ensure_list(parser(self)) +3967 +3968 if not self._curr: +3969 return self.expression( +3970 exp.AlterTable, +3971 this=this, +3972 exists=exists, +3973 actions=actions, +3974 ) +3975 return self._parse_as_command(start) +3976 +3977 def _parse_merge(self) -> exp.Expression: +3978 self._match(TokenType.INTO) +3979 target = self._parse_table() +3980 +3981 self._match(TokenType.USING) +3982 using = self._parse_table() 3983 -3984 def _parse_set_item(self) -> t.Optional[exp.Expression]: -3985 parser = self._find_parser(self.SET_PARSERS, self._set_trie) # type: ignore -3986 return parser(self) if parser else self._parse_set_item_assignment(kind=None) -3987 -3988 def _parse_set(self) -> exp.Expression: -3989 index = self._index -3990 set_ = self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item)) -3991 -3992 if self._curr: -3993 self._retreat(index) -3994 return self._parse_as_command(self._prev) -3995 -3996 return set_ +3984 self._match(TokenType.ON) +3985 on = self._parse_conjunction() +3986 +3987 whens = [] +3988 while self._match(TokenType.WHEN): +3989 matched = not self._match(TokenType.NOT) +3990 self._match_text_seq("MATCHED") +3991 source = ( +3992 False +3993 if self._match_text_seq("BY", "TARGET") +3994 else self._match_text_seq("BY", "SOURCE") +3995 ) +3996 condition = self._parse_conjunction() if self._match(TokenType.AND) else None 3997 -3998 def _parse_var_from_options(self, options: t.Collection[str]) -> t.Optional[exp.Expression]: -3999 for option in options: -4000 if self._match_text_seq(*option.split(" ")): -4001 return exp.Var(this=option) -4002 return None -4003 -4004 def _parse_as_command(self, start: Token) -> exp.Command: -4005 while self._curr: -4006 self._advance() -4007 text = self._find_sql(start, self._prev) -4008 size = len(start.text) -4009 return exp.Command(this=text[:size], expression=text[size:]) -4010 -4011 def _find_parser( -4012 self, parsers: t.Dict[str, t.Callable], trie: t.Dict -4013 ) -> t.Optional[t.Callable]: -4014 if not self._curr: -4015 return None -4016 -4017 index = self._index -4018 this = [] -4019 while True: -4020 # The current token might be multiple words -4021 curr = self._curr.text.upper() -4022 key = curr.split(" ") -4023 this.append(curr) -4024 self._advance() -4025 result, trie = in_trie(trie, key) -4026 if result == 0: -4027 break -4028 if result == 2: -4029 subparser = parsers[" ".join(this)] -4030 return subparser -4031 self._retreat(index) -4032 return None -4033 -4034 def _match(self, token_type, advance=True): -4035 if not self._curr: -4036 return None -4037 -4038 if self._curr.token_type == token_type: -4039 if advance: -4040 self._advance() -4041 return True +3998 self._match(TokenType.THEN) +3999 +4000 if self._match(TokenType.INSERT): +4001 _this = self._parse_star() +4002 if _this: +4003 then = self.expression(exp.Insert, this=_this) +4004 else: +4005 then = self.expression( +4006 exp.Insert, +4007 this=self._parse_value(), +4008 expression=self._match(TokenType.VALUES) and self._parse_value(), +4009 ) +4010 elif self._match(TokenType.UPDATE): +4011 expressions = self._parse_star() +4012 if expressions: +4013 then = self.expression(exp.Update, expressions=expressions) +4014 else: +4015 then = self.expression( +4016 exp.Update, +4017 expressions=self._match(TokenType.SET) +4018 and self._parse_csv(self._parse_equality), +4019 ) +4020 elif self._match(TokenType.DELETE): +4021 then = self.expression(exp.Var, this=self._prev.text) +4022 else: +4023 then = None +4024 +4025 whens.append( +4026 self.expression( +4027 exp.When, +4028 matched=matched, +4029 source=source, +4030 condition=condition, +4031 then=then, +4032 ) +4033 ) +4034 +4035 return self.expression( +4036 exp.Merge, +4037 this=target, +4038 using=using, +4039 on=on, +4040 expressions=whens, +4041 ) 4042 -4043 return None -4044 -4045 def _match_set(self, types, advance=True): -4046 if not self._curr: -4047 return None -4048 -4049 if self._curr.token_type in types: -4050 if advance: -4051 self._advance() -4052 return True -4053 -4054 return None -4055 -4056 def _match_pair(self, token_type_a, token_type_b, advance=True): -4057 if not self._curr or not self._next: -4058 return None +4043 def _parse_show(self) -> t.Optional[exp.Expression]: +4044 parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore +4045 if parser: +4046 return parser(self) +4047 self._advance() +4048 return self.expression(exp.Show, this=self._prev.text.upper()) +4049 +4050 def _parse_set_item_assignment( +4051 self, kind: t.Optional[str] = None +4052 ) -> t.Optional[exp.Expression]: +4053 index = self._index +4054 +4055 if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"): +4056 return self._parse_set_transaction(global_=kind == "GLOBAL") +4057 +4058 left = self._parse_primary() or self._parse_id_var() 4059 -4060 if self._curr.token_type == token_type_a and self._next.token_type == token_type_b: -4061 if advance: -4062 self._advance(2) -4063 return True -4064 -4065 return None -4066 -4067 def _match_l_paren(self, expression=None): -4068 if not self._match(TokenType.L_PAREN): -4069 self.raise_error("Expecting (") -4070 if expression and self._prev_comments: -4071 expression.comments = self._prev_comments -4072 -4073 def _match_r_paren(self, expression=None): -4074 if not self._match(TokenType.R_PAREN): -4075 self.raise_error("Expecting )") -4076 if expression and self._prev_comments: -4077 expression.comments = self._prev_comments -4078 -4079 def _match_texts(self, texts, advance=True): -4080 if self._curr and self._curr.text.upper() in texts: -4081 if advance: -4082 self._advance() -4083 return True -4084 return False -4085 -4086 def _match_text_seq(self, *texts, advance=True): -4087 index = self._index -4088 for text in texts: -4089 if self._curr and self._curr.text.upper() == text: -4090 self._advance() -4091 else: -4092 self._retreat(index) -4093 return False -4094 -4095 if not advance: -4096 self._retreat(index) -4097 -4098 return True -4099 -4100 def _replace_columns_with_dots(self, this): -4101 if isinstance(this, exp.Dot): -4102 exp.replace_children(this, self._replace_columns_with_dots) -4103 elif isinstance(this, exp.Column): -4104 exp.replace_children(this, self._replace_columns_with_dots) -4105 table = this.args.get("table") -4106 this = ( -4107 self.expression(exp.Dot, this=table, expression=this.this) -4108 if table -4109 else self.expression(exp.Var, this=this.name) -4110 ) -4111 elif isinstance(this, exp.Identifier): -4112 this = self.expression(exp.Var, this=this.name) -4113 return this -4114 -4115 def _replace_lambda(self, node, lambda_variables): -4116 for column in node.find_all(exp.Column): -4117 if column.parts[0].name in lambda_variables: -4118 dot_or_id = column.to_dot() if column.table else column.this -4119 parent = column.parent -4120 -4121 while isinstance(parent, exp.Dot): -4122 if not isinstance(parent.parent, exp.Dot): -4123 parent.replace(dot_or_id) -4124 break -4125 parent = parent.parent -4126 else: -4127 column.replace(dot_or_id) -4128 return node +4060 if not self._match_texts(("=", "TO")): +4061 self._retreat(index) +4062 return None +4063 +4064 right = self._parse_statement() or self._parse_id_var() +4065 this = self.expression( +4066 exp.EQ, +4067 this=left, +4068 expression=right, +4069 ) +4070 +4071 return self.expression( +4072 exp.SetItem, +4073 this=this, +4074 kind=kind, +4075 ) +4076 +4077 def _parse_set_transaction(self, global_: bool = False) -> exp.Expression: +4078 self._match_text_seq("TRANSACTION") +4079 characteristics = self._parse_csv( +4080 lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS) +4081 ) +4082 return self.expression( +4083 exp.SetItem, +4084 expressions=characteristics, +4085 kind="TRANSACTION", +4086 **{"global": global_}, # type: ignore +4087 ) +4088 +4089 def _parse_set_item(self) -> t.Optional[exp.Expression]: +4090 parser = self._find_parser(self.SET_PARSERS, self._set_trie) # type: ignore +4091 return parser(self) if parser else self._parse_set_item_assignment(kind=None) +4092 +4093 def _parse_set(self) -> exp.Expression: +4094 index = self._index +4095 set_ = self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item)) +4096 +4097 if self._curr: +4098 self._retreat(index) +4099 return self._parse_as_command(self._prev) +4100 +4101 return set_ +4102 +4103 def _parse_var_from_options(self, options: t.Collection[str]) -> t.Optional[exp.Expression]: +4104 for option in options: +4105 if self._match_text_seq(*option.split(" ")): +4106 return exp.Var(this=option) +4107 return None +4108 +4109 def _parse_as_command(self, start: Token) -> exp.Command: +4110 while self._curr: +4111 self._advance() +4112 text = self._find_sql(start, self._prev) +4113 size = len(start.text) +4114 return exp.Command(this=text[:size], expression=text[size:]) +4115 +4116 def _find_parser( +4117 self, parsers: t.Dict[str, t.Callable], trie: t.Dict +4118 ) -> t.Optional[t.Callable]: +4119 if not self._curr: +4120 return None +4121 +4122 index = self._index +4123 this = [] +4124 while True: +4125 # The current token might be multiple words +4126 curr = self._curr.text.upper() +4127 key = curr.split(" ") +4128 this.append(curr) +4129 self._advance() +4130 result, trie = in_trie(trie, key) +4131 if result == 0: +4132 break +4133 if result == 2: +4134 subparser = parsers[" ".join(this)] +4135 return subparser +4136 self._retreat(index) +4137 return None +4138 +4139 def _match(self, token_type, advance=True): +4140 if not self._curr: +4141 return None +4142 +4143 if self._curr.token_type == token_type: +4144 if advance: +4145 self._advance() +4146 return True +4147 +4148 return None +4149 +4150 def _match_set(self, types, advance=True): +4151 if not self._curr: +4152 return None +4153 +4154 if self._curr.token_type in types: +4155 if advance: +4156 self._advance() +4157 return True +4158 +4159 return None +4160 +4161 def _match_pair(self, token_type_a, token_type_b, advance=True): +4162 if not self._curr or not self._next: +4163 return None +4164 +4165 if self._curr.token_type == token_type_a and self._next.token_type == token_type_b: +4166 if advance: +4167 self._advance(2) +4168 return True +4169 +4170 return None +4171 +4172 def _match_l_paren(self, expression=None): +4173 if not self._match(TokenType.L_PAREN): +4174 self.raise_error("Expecting (") +4175 if expression and self._prev_comments: +4176 expression.comments = self._prev_comments +4177 +4178 def _match_r_paren(self, expression=None): +4179 if not self._match(TokenType.R_PAREN): +4180 self.raise_error("Expecting )") +4181 if expression and self._prev_comments: +4182 expression.comments = self._prev_comments +4183 +4184 def _match_texts(self, texts, advance=True): +4185 if self._curr and self._curr.text.upper() in texts: +4186 if advance: +4187 self._advance() +4188 return True +4189 return False +4190 +4191 def _match_text_seq(self, *texts, advance=True): +4192 index = self._index +4193 for text in texts: +4194 if self._curr and self._curr.text.upper() == text: +4195 self._advance() +4196 else: +4197 self._retreat(index) +4198 return False +4199 +4200 if not advance: +4201 self._retreat(index) +4202 +4203 return True +4204 +4205 def _replace_columns_with_dots(self, this): +4206 if isinstance(this, exp.Dot): +4207 exp.replace_children(this, self._replace_columns_with_dots) +4208 elif isinstance(this, exp.Column): +4209 exp.replace_children(this, self._replace_columns_with_dots) +4210 table = this.args.get("table") +4211 this = ( +4212 self.expression(exp.Dot, this=table, expression=this.this) +4213 if table +4214 else self.expression(exp.Var, this=this.name) +4215 ) +4216 elif isinstance(this, exp.Identifier): +4217 this = self.expression(exp.Var, this=this.name) +4218 return this +4219 +4220 def _replace_lambda(self, node, lambda_variables): +4221 for column in node.find_all(exp.Column): +4222 if column.parts[0].name in lambda_variables: +4223 dot_or_id = column.to_dot() if column.table else column.this +4224 parent = column.parent +4225 +4226 while isinstance(parent, exp.Dot): +4227 if not isinstance(parent.parent, exp.Dot): +4228 parent.replace(dot_or_id) +4229 break +4230 parent = parent.parent +4231 else: +4232 column.replace(dot_or_id) +4233 return node
    @@ -4926,3458 +5031,3563 @@ 675 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { 676 "CAST": lambda self: self._parse_cast(self.STRICT_CAST), 677 "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST), - 678 "EXTRACT": lambda self: self._parse_extract(), - 679 "JSON_OBJECT": lambda self: self._parse_json_object(), - 680 "POSITION": lambda self: self._parse_position(), - 681 "STRING_AGG": lambda self: self._parse_string_agg(), - 682 "SUBSTRING": lambda self: self._parse_substring(), - 683 "TRIM": lambda self: self._parse_trim(), - 684 "TRY_CAST": lambda self: self._parse_cast(False), - 685 "TRY_CONVERT": lambda self: self._parse_convert(False), - 686 } - 687 - 688 QUERY_MODIFIER_PARSERS = { - 689 "match": lambda self: self._parse_match_recognize(), - 690 "where": lambda self: self._parse_where(), - 691 "group": lambda self: self._parse_group(), - 692 "having": lambda self: self._parse_having(), - 693 "qualify": lambda self: self._parse_qualify(), - 694 "windows": lambda self: self._parse_window_clause(), - 695 "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute), - 696 "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), - 697 "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), - 698 "order": lambda self: self._parse_order(), - 699 "limit": lambda self: self._parse_limit(), - 700 "offset": lambda self: self._parse_offset(), - 701 "lock": lambda self: self._parse_lock(), - 702 "sample": lambda self: self._parse_table_sample(as_modifier=True), - 703 } - 704 - 705 SET_PARSERS = { - 706 "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"), - 707 "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"), - 708 "SESSION": lambda self: self._parse_set_item_assignment("SESSION"), - 709 "TRANSACTION": lambda self: self._parse_set_transaction(), - 710 } - 711 - 712 SHOW_PARSERS: t.Dict[str, t.Callable] = {} - 713 - 714 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) - 715 - 716 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} - 717 - 718 TRANSACTION_CHARACTERISTICS = { - 719 "ISOLATION LEVEL REPEATABLE READ", - 720 "ISOLATION LEVEL READ COMMITTED", - 721 "ISOLATION LEVEL READ UNCOMMITTED", - 722 "ISOLATION LEVEL SERIALIZABLE", - 723 "READ WRITE", - 724 "READ ONLY", - 725 } - 726 - 727 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} - 728 - 729 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} - 730 - 731 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} - 732 - 733 STRICT_CAST = True - 734 - 735 CONVERT_TYPE_FIRST = False - 736 - 737 __slots__ = ( - 738 "error_level", - 739 "error_message_context", - 740 "sql", - 741 "errors", - 742 "index_offset", - 743 "unnest_column_only", - 744 "alias_post_tablesample", - 745 "max_errors", - 746 "null_ordering", - 747 "_tokens", - 748 "_index", - 749 "_curr", - 750 "_next", - 751 "_prev", - 752 "_prev_comments", - 753 "_show_trie", - 754 "_set_trie", - 755 ) - 756 - 757 def __init__( - 758 self, - 759 error_level: t.Optional[ErrorLevel] = None, - 760 error_message_context: int = 100, - 761 index_offset: int = 0, - 762 unnest_column_only: bool = False, - 763 alias_post_tablesample: bool = False, - 764 max_errors: int = 3, - 765 null_ordering: t.Optional[str] = None, - 766 ): - 767 self.error_level = error_level or ErrorLevel.IMMEDIATE - 768 self.error_message_context = error_message_context - 769 self.index_offset = index_offset - 770 self.unnest_column_only = unnest_column_only - 771 self.alias_post_tablesample = alias_post_tablesample - 772 self.max_errors = max_errors - 773 self.null_ordering = null_ordering - 774 self.reset() - 775 - 776 def reset(self): - 777 self.sql = "" - 778 self.errors = [] - 779 self._tokens = [] - 780 self._index = 0 - 781 self._curr = None - 782 self._next = None - 783 self._prev = None - 784 self._prev_comments = None - 785 - 786 def parse( - 787 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None - 788 ) -> t.List[t.Optional[exp.Expression]]: - 789 """ - 790 Parses a list of tokens and returns a list of syntax trees, one tree - 791 per parsed SQL statement. - 792 - 793 Args: - 794 raw_tokens: the list of tokens. - 795 sql: the original SQL string, used to produce helpful debug messages. - 796 - 797 Returns: - 798 The list of syntax trees. - 799 """ - 800 return self._parse( - 801 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql - 802 ) - 803 - 804 def parse_into( - 805 self, - 806 expression_types: exp.IntoType, - 807 raw_tokens: t.List[Token], - 808 sql: t.Optional[str] = None, - 809 ) -> t.List[t.Optional[exp.Expression]]: - 810 """ - 811 Parses a list of tokens into a given Expression type. If a collection of Expression - 812 types is given instead, this method will try to parse the token list into each one - 813 of them, stopping at the first for which the parsing succeeds. - 814 - 815 Args: - 816 expression_types: the expression type(s) to try and parse the token list into. - 817 raw_tokens: the list of tokens. - 818 sql: the original SQL string, used to produce helpful debug messages. - 819 - 820 Returns: - 821 The target Expression. - 822 """ - 823 errors = [] - 824 for expression_type in ensure_collection(expression_types): - 825 parser = self.EXPRESSION_PARSERS.get(expression_type) - 826 if not parser: - 827 raise TypeError(f"No parser registered for {expression_type}") - 828 try: - 829 return self._parse(parser, raw_tokens, sql) - 830 except ParseError as e: - 831 e.errors[0]["into_expression"] = expression_type - 832 errors.append(e) - 833 raise ParseError( - 834 f"Failed to parse into {expression_types}", - 835 errors=merge_errors(errors), - 836 ) from errors[-1] - 837 - 838 def _parse( - 839 self, - 840 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], - 841 raw_tokens: t.List[Token], - 842 sql: t.Optional[str] = None, - 843 ) -> t.List[t.Optional[exp.Expression]]: - 844 self.reset() - 845 self.sql = sql or "" - 846 total = len(raw_tokens) - 847 chunks: t.List[t.List[Token]] = [[]] - 848 - 849 for i, token in enumerate(raw_tokens): - 850 if token.token_type == TokenType.SEMICOLON: - 851 if i < total - 1: - 852 chunks.append([]) - 853 else: - 854 chunks[-1].append(token) - 855 - 856 expressions = [] - 857 - 858 for tokens in chunks: - 859 self._index = -1 - 860 self._tokens = tokens - 861 self._advance() - 862 - 863 expressions.append(parse_method(self)) - 864 - 865 if self._index < len(self._tokens): - 866 self.raise_error("Invalid expression / Unexpected token") - 867 - 868 self.check_errors() - 869 - 870 return expressions - 871 - 872 def check_errors(self) -> None: - 873 """ - 874 Logs or raises any found errors, depending on the chosen error level setting. - 875 """ - 876 if self.error_level == ErrorLevel.WARN: - 877 for error in self.errors: - 878 logger.error(str(error)) - 879 elif self.error_level == ErrorLevel.RAISE and self.errors: - 880 raise ParseError( - 881 concat_messages(self.errors, self.max_errors), - 882 errors=merge_errors(self.errors), - 883 ) - 884 - 885 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: - 886 """ - 887 Appends an error in the list of recorded errors or raises it, depending on the chosen - 888 error level setting. - 889 """ - 890 token = token or self._curr or self._prev or Token.string("") - 891 start = self._find_token(token) - 892 end = start + len(token.text) - 893 start_context = self.sql[max(start - self.error_message_context, 0) : start] - 894 highlight = self.sql[start:end] - 895 end_context = self.sql[end : end + self.error_message_context] - 896 - 897 error = ParseError.new( - 898 f"{message}. Line {token.line}, Col: {token.col}.\n" - 899 f" {start_context}\033[4m{highlight}\033[0m{end_context}", - 900 description=message, - 901 line=token.line, - 902 col=token.col, - 903 start_context=start_context, - 904 highlight=highlight, - 905 end_context=end_context, - 906 ) - 907 - 908 if self.error_level == ErrorLevel.IMMEDIATE: - 909 raise error - 910 - 911 self.errors.append(error) - 912 - 913 def expression( - 914 self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs - 915 ) -> exp.Expression: - 916 """ - 917 Creates a new, validated Expression. + 678 "DECODE": lambda self: self._parse_decode(), + 679 "EXTRACT": lambda self: self._parse_extract(), + 680 "JSON_OBJECT": lambda self: self._parse_json_object(), + 681 "LOG": lambda self: self._parse_logarithm(), + 682 "MATCH": lambda self: self._parse_match_against(), + 683 "POSITION": lambda self: self._parse_position(), + 684 "STRING_AGG": lambda self: self._parse_string_agg(), + 685 "SUBSTRING": lambda self: self._parse_substring(), + 686 "TRIM": lambda self: self._parse_trim(), + 687 "TRY_CAST": lambda self: self._parse_cast(False), + 688 "TRY_CONVERT": lambda self: self._parse_convert(False), + 689 } + 690 + 691 QUERY_MODIFIER_PARSERS = { + 692 "match": lambda self: self._parse_match_recognize(), + 693 "where": lambda self: self._parse_where(), + 694 "group": lambda self: self._parse_group(), + 695 "having": lambda self: self._parse_having(), + 696 "qualify": lambda self: self._parse_qualify(), + 697 "windows": lambda self: self._parse_window_clause(), + 698 "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute), + 699 "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), + 700 "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), + 701 "order": lambda self: self._parse_order(), + 702 "limit": lambda self: self._parse_limit(), + 703 "offset": lambda self: self._parse_offset(), + 704 "lock": lambda self: self._parse_lock(), + 705 "sample": lambda self: self._parse_table_sample(as_modifier=True), + 706 } + 707 + 708 SET_PARSERS = { + 709 "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"), + 710 "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"), + 711 "SESSION": lambda self: self._parse_set_item_assignment("SESSION"), + 712 "TRANSACTION": lambda self: self._parse_set_transaction(), + 713 } + 714 + 715 SHOW_PARSERS: t.Dict[str, t.Callable] = {} + 716 + 717 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) + 718 + 719 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} + 720 + 721 TRANSACTION_CHARACTERISTICS = { + 722 "ISOLATION LEVEL REPEATABLE READ", + 723 "ISOLATION LEVEL READ COMMITTED", + 724 "ISOLATION LEVEL READ UNCOMMITTED", + 725 "ISOLATION LEVEL SERIALIZABLE", + 726 "READ WRITE", + 727 "READ ONLY", + 728 } + 729 + 730 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} + 731 + 732 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} + 733 + 734 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} + 735 + 736 STRICT_CAST = True + 737 + 738 CONVERT_TYPE_FIRST = False + 739 + 740 LOG_BASE_FIRST = True + 741 LOG_DEFAULTS_TO_LN = False + 742 + 743 __slots__ = ( + 744 "error_level", + 745 "error_message_context", + 746 "sql", + 747 "errors", + 748 "index_offset", + 749 "unnest_column_only", + 750 "alias_post_tablesample", + 751 "max_errors", + 752 "null_ordering", + 753 "_tokens", + 754 "_index", + 755 "_curr", + 756 "_next", + 757 "_prev", + 758 "_prev_comments", + 759 "_show_trie", + 760 "_set_trie", + 761 ) + 762 + 763 def __init__( + 764 self, + 765 error_level: t.Optional[ErrorLevel] = None, + 766 error_message_context: int = 100, + 767 index_offset: int = 0, + 768 unnest_column_only: bool = False, + 769 alias_post_tablesample: bool = False, + 770 max_errors: int = 3, + 771 null_ordering: t.Optional[str] = None, + 772 ): + 773 self.error_level = error_level or ErrorLevel.IMMEDIATE + 774 self.error_message_context = error_message_context + 775 self.index_offset = index_offset + 776 self.unnest_column_only = unnest_column_only + 777 self.alias_post_tablesample = alias_post_tablesample + 778 self.max_errors = max_errors + 779 self.null_ordering = null_ordering + 780 self.reset() + 781 + 782 def reset(self): + 783 self.sql = "" + 784 self.errors = [] + 785 self._tokens = [] + 786 self._index = 0 + 787 self._curr = None + 788 self._next = None + 789 self._prev = None + 790 self._prev_comments = None + 791 + 792 def parse( + 793 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None + 794 ) -> t.List[t.Optional[exp.Expression]]: + 795 """ + 796 Parses a list of tokens and returns a list of syntax trees, one tree + 797 per parsed SQL statement. + 798 + 799 Args: + 800 raw_tokens: the list of tokens. + 801 sql: the original SQL string, used to produce helpful debug messages. + 802 + 803 Returns: + 804 The list of syntax trees. + 805 """ + 806 return self._parse( + 807 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql + 808 ) + 809 + 810 def parse_into( + 811 self, + 812 expression_types: exp.IntoType, + 813 raw_tokens: t.List[Token], + 814 sql: t.Optional[str] = None, + 815 ) -> t.List[t.Optional[exp.Expression]]: + 816 """ + 817 Parses a list of tokens into a given Expression type. If a collection of Expression + 818 types is given instead, this method will try to parse the token list into each one + 819 of them, stopping at the first for which the parsing succeeds. + 820 + 821 Args: + 822 expression_types: the expression type(s) to try and parse the token list into. + 823 raw_tokens: the list of tokens. + 824 sql: the original SQL string, used to produce helpful debug messages. + 825 + 826 Returns: + 827 The target Expression. + 828 """ + 829 errors = [] + 830 for expression_type in ensure_collection(expression_types): + 831 parser = self.EXPRESSION_PARSERS.get(expression_type) + 832 if not parser: + 833 raise TypeError(f"No parser registered for {expression_type}") + 834 try: + 835 return self._parse(parser, raw_tokens, sql) + 836 except ParseError as e: + 837 e.errors[0]["into_expression"] = expression_type + 838 errors.append(e) + 839 raise ParseError( + 840 f"Failed to parse into {expression_types}", + 841 errors=merge_errors(errors), + 842 ) from errors[-1] + 843 + 844 def _parse( + 845 self, + 846 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], + 847 raw_tokens: t.List[Token], + 848 sql: t.Optional[str] = None, + 849 ) -> t.List[t.Optional[exp.Expression]]: + 850 self.reset() + 851 self.sql = sql or "" + 852 total = len(raw_tokens) + 853 chunks: t.List[t.List[Token]] = [[]] + 854 + 855 for i, token in enumerate(raw_tokens): + 856 if token.token_type == TokenType.SEMICOLON: + 857 if i < total - 1: + 858 chunks.append([]) + 859 else: + 860 chunks[-1].append(token) + 861 + 862 expressions = [] + 863 + 864 for tokens in chunks: + 865 self._index = -1 + 866 self._tokens = tokens + 867 self._advance() + 868 + 869 expressions.append(parse_method(self)) + 870 + 871 if self._index < len(self._tokens): + 872 self.raise_error("Invalid expression / Unexpected token") + 873 + 874 self.check_errors() + 875 + 876 return expressions + 877 + 878 def check_errors(self) -> None: + 879 """ + 880 Logs or raises any found errors, depending on the chosen error level setting. + 881 """ + 882 if self.error_level == ErrorLevel.WARN: + 883 for error in self.errors: + 884 logger.error(str(error)) + 885 elif self.error_level == ErrorLevel.RAISE and self.errors: + 886 raise ParseError( + 887 concat_messages(self.errors, self.max_errors), + 888 errors=merge_errors(self.errors), + 889 ) + 890 + 891 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: + 892 """ + 893 Appends an error in the list of recorded errors or raises it, depending on the chosen + 894 error level setting. + 895 """ + 896 token = token or self._curr or self._prev or Token.string("") + 897 start = self._find_token(token) + 898 end = start + len(token.text) + 899 start_context = self.sql[max(start - self.error_message_context, 0) : start] + 900 highlight = self.sql[start:end] + 901 end_context = self.sql[end : end + self.error_message_context] + 902 + 903 error = ParseError.new( + 904 f"{message}. Line {token.line}, Col: {token.col}.\n" + 905 f" {start_context}\033[4m{highlight}\033[0m{end_context}", + 906 description=message, + 907 line=token.line, + 908 col=token.col, + 909 start_context=start_context, + 910 highlight=highlight, + 911 end_context=end_context, + 912 ) + 913 + 914 if self.error_level == ErrorLevel.IMMEDIATE: + 915 raise error + 916 + 917 self.errors.append(error) 918 - 919 Args: - 920 exp_class: the expression class to instantiate. - 921 comments: an optional list of comments to attach to the expression. - 922 kwargs: the arguments to set for the expression along with their respective values. - 923 - 924 Returns: - 925 The target expression. - 926 """ - 927 instance = exp_class(**kwargs) - 928 if self._prev_comments: - 929 instance.comments = self._prev_comments - 930 self._prev_comments = None - 931 if comments: - 932 instance.comments = comments - 933 self.validate_expression(instance) - 934 return instance - 935 - 936 def validate_expression( - 937 self, expression: exp.Expression, args: t.Optional[t.List] = None - 938 ) -> None: - 939 """ - 940 Validates an already instantiated expression, making sure that all its mandatory arguments - 941 are set. - 942 - 943 Args: - 944 expression: the expression to validate. - 945 args: an optional list of items that was used to instantiate the expression, if it's a Func. - 946 """ - 947 if self.error_level == ErrorLevel.IGNORE: - 948 return - 949 - 950 for error_message in expression.error_messages(args): - 951 self.raise_error(error_message) - 952 - 953 def _find_sql(self, start: Token, end: Token) -> str: - 954 return self.sql[self._find_token(start) : self._find_token(end) + len(end.text)] + 919 def expression( + 920 self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs + 921 ) -> exp.Expression: + 922 """ + 923 Creates a new, validated Expression. + 924 + 925 Args: + 926 exp_class: the expression class to instantiate. + 927 comments: an optional list of comments to attach to the expression. + 928 kwargs: the arguments to set for the expression along with their respective values. + 929 + 930 Returns: + 931 The target expression. + 932 """ + 933 instance = exp_class(**kwargs) + 934 if self._prev_comments: + 935 instance.comments = self._prev_comments + 936 self._prev_comments = None + 937 if comments: + 938 instance.comments = comments + 939 self.validate_expression(instance) + 940 return instance + 941 + 942 def validate_expression( + 943 self, expression: exp.Expression, args: t.Optional[t.List] = None + 944 ) -> None: + 945 """ + 946 Validates an already instantiated expression, making sure that all its mandatory arguments + 947 are set. + 948 + 949 Args: + 950 expression: the expression to validate. + 951 args: an optional list of items that was used to instantiate the expression, if it's a Func. + 952 """ + 953 if self.error_level == ErrorLevel.IGNORE: + 954 return 955 - 956 def _find_token(self, token: Token) -> int: - 957 line = 1 - 958 col = 1 - 959 index = 0 - 960 - 961 while line < token.line or col < token.col: - 962 if Tokenizer.WHITE_SPACE.get(self.sql[index]) == TokenType.BREAK: - 963 line += 1 - 964 col = 1 - 965 else: - 966 col += 1 - 967 index += 1 - 968 - 969 return index - 970 - 971 def _advance(self, times: int = 1) -> None: - 972 self._index += times - 973 self._curr = seq_get(self._tokens, self._index) - 974 self._next = seq_get(self._tokens, self._index + 1) - 975 if self._index > 0: - 976 self._prev = self._tokens[self._index - 1] - 977 self._prev_comments = self._prev.comments - 978 else: - 979 self._prev = None - 980 self._prev_comments = None - 981 - 982 def _retreat(self, index: int) -> None: - 983 if index != self._index: - 984 self._advance(index - self._index) - 985 - 986 def _parse_command(self) -> exp.Expression: - 987 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) - 988 - 989 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: - 990 start = self._prev - 991 exists = self._parse_exists() if allow_exists else None - 992 - 993 self._match(TokenType.ON) + 956 for error_message in expression.error_messages(args): + 957 self.raise_error(error_message) + 958 + 959 def _find_sql(self, start: Token, end: Token) -> str: + 960 return self.sql[self._find_token(start) : self._find_token(end) + len(end.text)] + 961 + 962 def _find_token(self, token: Token) -> int: + 963 line = 1 + 964 col = 1 + 965 index = 0 + 966 + 967 while line < token.line or col < token.col: + 968 if Tokenizer.WHITE_SPACE.get(self.sql[index]) == TokenType.BREAK: + 969 line += 1 + 970 col = 1 + 971 else: + 972 col += 1 + 973 index += 1 + 974 + 975 return index + 976 + 977 def _advance(self, times: int = 1) -> None: + 978 self._index += times + 979 self._curr = seq_get(self._tokens, self._index) + 980 self._next = seq_get(self._tokens, self._index + 1) + 981 if self._index > 0: + 982 self._prev = self._tokens[self._index - 1] + 983 self._prev_comments = self._prev.comments + 984 else: + 985 self._prev = None + 986 self._prev_comments = None + 987 + 988 def _retreat(self, index: int) -> None: + 989 if index != self._index: + 990 self._advance(index - self._index) + 991 + 992 def _parse_command(self) -> exp.Expression: + 993 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) 994 - 995 kind = self._match_set(self.CREATABLES) and self._prev - 996 - 997 if not kind: - 998 return self._parse_as_command(start) - 999 -1000 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): -1001 this = self._parse_user_defined_function(kind=kind.token_type) -1002 elif kind.token_type == TokenType.TABLE: -1003 this = self._parse_table() -1004 elif kind.token_type == TokenType.COLUMN: -1005 this = self._parse_column() -1006 else: -1007 this = self._parse_id_var() -1008 -1009 self._match(TokenType.IS) -1010 -1011 return self.expression( -1012 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists -1013 ) + 995 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: + 996 start = self._prev + 997 exists = self._parse_exists() if allow_exists else None + 998 + 999 self._match(TokenType.ON) +1000 +1001 kind = self._match_set(self.CREATABLES) and self._prev +1002 +1003 if not kind: +1004 return self._parse_as_command(start) +1005 +1006 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): +1007 this = self._parse_user_defined_function(kind=kind.token_type) +1008 elif kind.token_type == TokenType.TABLE: +1009 this = self._parse_table() +1010 elif kind.token_type == TokenType.COLUMN: +1011 this = self._parse_column() +1012 else: +1013 this = self._parse_id_var() 1014 -1015 def _parse_statement(self) -> t.Optional[exp.Expression]: -1016 if self._curr is None: -1017 return None -1018 -1019 if self._match_set(self.STATEMENT_PARSERS): -1020 return self.STATEMENT_PARSERS[self._prev.token_type](self) -1021 -1022 if self._match_set(Tokenizer.COMMANDS): -1023 return self._parse_command() +1015 self._match(TokenType.IS) +1016 +1017 return self.expression( +1018 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists +1019 ) +1020 +1021 def _parse_statement(self) -> t.Optional[exp.Expression]: +1022 if self._curr is None: +1023 return None 1024 -1025 expression = self._parse_expression() -1026 expression = self._parse_set_operations(expression) if expression else self._parse_select() +1025 if self._match_set(self.STATEMENT_PARSERS): +1026 return self.STATEMENT_PARSERS[self._prev.token_type](self) 1027 -1028 self._parse_query_modifiers(expression) -1029 return expression +1028 if self._match_set(Tokenizer.COMMANDS): +1029 return self._parse_command() 1030 -1031 def _parse_drop(self, default_kind: t.Optional[str] = None) -> t.Optional[exp.Expression]: -1032 start = self._prev -1033 temporary = self._match(TokenType.TEMPORARY) -1034 materialized = self._match(TokenType.MATERIALIZED) -1035 kind = self._match_set(self.CREATABLES) and self._prev.text -1036 if not kind: -1037 if default_kind: -1038 kind = default_kind -1039 else: -1040 return self._parse_as_command(start) -1041 -1042 return self.expression( -1043 exp.Drop, -1044 exists=self._parse_exists(), -1045 this=self._parse_table(schema=True), -1046 kind=kind, -1047 temporary=temporary, -1048 materialized=materialized, -1049 cascade=self._match(TokenType.CASCADE), -1050 ) -1051 -1052 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: -1053 return ( -1054 self._match(TokenType.IF) -1055 and (not not_ or self._match(TokenType.NOT)) -1056 and self._match(TokenType.EXISTS) +1031 expression = self._parse_expression() +1032 expression = self._parse_set_operations(expression) if expression else self._parse_select() +1033 +1034 self._parse_query_modifiers(expression) +1035 return expression +1036 +1037 def _parse_drop(self, default_kind: t.Optional[str] = None) -> t.Optional[exp.Expression]: +1038 start = self._prev +1039 temporary = self._match(TokenType.TEMPORARY) +1040 materialized = self._match(TokenType.MATERIALIZED) +1041 kind = self._match_set(self.CREATABLES) and self._prev.text +1042 if not kind: +1043 if default_kind: +1044 kind = default_kind +1045 else: +1046 return self._parse_as_command(start) +1047 +1048 return self.expression( +1049 exp.Drop, +1050 exists=self._parse_exists(), +1051 this=self._parse_table(schema=True), +1052 kind=kind, +1053 temporary=temporary, +1054 materialized=materialized, +1055 cascade=self._match(TokenType.CASCADE), +1056 constraints=self._match_text_seq("CONSTRAINTS"), 1057 ) 1058 -1059 def _parse_create(self) -> t.Optional[exp.Expression]: -1060 start = self._prev -1061 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( -1062 TokenType.OR, TokenType.REPLACE -1063 ) -1064 unique = self._match(TokenType.UNIQUE) -1065 volatile = self._match(TokenType.VOLATILE) -1066 -1067 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): -1068 self._match(TokenType.TABLE) -1069 -1070 properties = None -1071 create_token = self._match_set(self.CREATABLES) and self._prev -1072 -1073 if not create_token: -1074 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE -1075 create_token = self._match_set(self.CREATABLES) and self._prev +1059 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: +1060 return ( +1061 self._match(TokenType.IF) +1062 and (not not_ or self._match(TokenType.NOT)) +1063 and self._match(TokenType.EXISTS) +1064 ) +1065 +1066 def _parse_create(self) -> t.Optional[exp.Expression]: +1067 start = self._prev +1068 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( +1069 TokenType.OR, TokenType.REPLACE +1070 ) +1071 unique = self._match(TokenType.UNIQUE) +1072 volatile = self._match(TokenType.VOLATILE) +1073 +1074 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): +1075 self._match(TokenType.TABLE) 1076 -1077 if not properties or not create_token: -1078 return self._parse_as_command(start) +1077 properties = None +1078 create_token = self._match_set(self.CREATABLES) and self._prev 1079 -1080 exists = self._parse_exists(not_=True) -1081 this = None -1082 expression = None -1083 indexes = None -1084 no_schema_binding = None -1085 begin = None +1080 if not create_token: +1081 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE +1082 create_token = self._match_set(self.CREATABLES) and self._prev +1083 +1084 if not properties or not create_token: +1085 return self._parse_as_command(start) 1086 -1087 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): -1088 this = self._parse_user_defined_function(kind=create_token.token_type) -1089 temp_properties = self._parse_properties() -1090 if properties and temp_properties: -1091 properties.expressions.extend(temp_properties.expressions) -1092 elif temp_properties: -1093 properties = temp_properties -1094 -1095 self._match(TokenType.ALIAS) -1096 begin = self._match(TokenType.BEGIN) -1097 return_ = self._match_text_seq("RETURN") -1098 expression = self._parse_statement() -1099 -1100 if return_: -1101 expression = self.expression(exp.Return, this=expression) -1102 elif create_token.token_type == TokenType.INDEX: -1103 this = self._parse_index() -1104 elif create_token.token_type in self.DB_CREATABLES: -1105 table_parts = self._parse_table_parts(schema=True) +1087 exists = self._parse_exists(not_=True) +1088 this = None +1089 expression = None +1090 indexes = None +1091 no_schema_binding = None +1092 begin = None +1093 +1094 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): +1095 this = self._parse_user_defined_function(kind=create_token.token_type) +1096 temp_properties = self._parse_properties() +1097 if properties and temp_properties: +1098 properties.expressions.extend(temp_properties.expressions) +1099 elif temp_properties: +1100 properties = temp_properties +1101 +1102 self._match(TokenType.ALIAS) +1103 begin = self._match(TokenType.BEGIN) +1104 return_ = self._match_text_seq("RETURN") +1105 expression = self._parse_statement() 1106 -1107 # exp.Properties.Location.POST_NAME -1108 if self._match(TokenType.COMMA): -1109 temp_properties = self._parse_properties(before=True) -1110 if properties and temp_properties: -1111 properties.expressions.extend(temp_properties.expressions) -1112 elif temp_properties: -1113 properties = temp_properties -1114 -1115 this = self._parse_schema(this=table_parts) -1116 -1117 # exp.Properties.Location.POST_SCHEMA and POST_WITH -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 +1107 if return_: +1108 expression = self.expression(exp.Return, this=expression) +1109 elif create_token.token_type == TokenType.INDEX: +1110 this = self._parse_index() +1111 elif create_token.token_type in self.DB_CREATABLES: +1112 table_parts = self._parse_table_parts(schema=True) +1113 +1114 # exp.Properties.Location.POST_NAME +1115 if self._match(TokenType.COMMA): +1116 temp_properties = self._parse_properties(before=True) +1117 if properties and temp_properties: +1118 properties.expressions.extend(temp_properties.expressions) +1119 elif temp_properties: +1120 properties = temp_properties +1121 +1122 this = self._parse_schema(this=table_parts) 1123 -1124 self._match(TokenType.ALIAS) -1125 -1126 # exp.Properties.Location.POST_ALIAS -1127 if not ( -1128 self._match(TokenType.SELECT, advance=False) -1129 or self._match(TokenType.WITH, advance=False) -1130 or self._match(TokenType.L_PAREN, advance=False) -1131 ): -1132 temp_properties = self._parse_properties() -1133 if properties and temp_properties: -1134 properties.expressions.extend(temp_properties.expressions) -1135 elif temp_properties: -1136 properties = temp_properties -1137 -1138 expression = self._parse_ddl_select() -1139 -1140 if create_token.token_type == TokenType.TABLE: -1141 # exp.Properties.Location.POST_EXPRESSION -1142 temp_properties = self._parse_properties() -1143 if properties and temp_properties: -1144 properties.expressions.extend(temp_properties.expressions) -1145 elif temp_properties: -1146 properties = temp_properties -1147 -1148 indexes = [] -1149 while True: -1150 index = self._parse_create_table_index() -1151 -1152 # exp.Properties.Location.POST_INDEX -1153 if self._match(TokenType.PARTITION_BY, advance=False): -1154 temp_properties = self._parse_properties() -1155 if properties and temp_properties: -1156 properties.expressions.extend(temp_properties.expressions) -1157 elif temp_properties: -1158 properties = temp_properties -1159 -1160 if not index: -1161 break -1162 else: -1163 indexes.append(index) -1164 elif create_token.token_type == TokenType.VIEW: -1165 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): -1166 no_schema_binding = True -1167 -1168 return self.expression( -1169 exp.Create, -1170 this=this, -1171 kind=create_token.text, -1172 replace=replace, -1173 unique=unique, -1174 volatile=volatile, -1175 expression=expression, -1176 exists=exists, -1177 properties=properties, -1178 indexes=indexes, -1179 no_schema_binding=no_schema_binding, -1180 begin=begin, -1181 ) -1182 -1183 def _parse_property_before(self) -> t.Optional[exp.Expression]: -1184 self._match(TokenType.COMMA) -1185 -1186 # parsers look to _prev for no/dual/default, so need to consume first -1187 self._match_text_seq("NO") -1188 self._match_text_seq("DUAL") -1189 self._match_text_seq("DEFAULT") -1190 -1191 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): -1192 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) -1193 -1194 return None -1195 -1196 def _parse_property(self) -> t.Optional[exp.Expression]: -1197 if self._match_texts(self.PROPERTY_PARSERS): -1198 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) -1199 -1200 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): -1201 return self._parse_character_set(default=True) +1124 # exp.Properties.Location.POST_SCHEMA and POST_WITH +1125 temp_properties = self._parse_properties() +1126 if properties and temp_properties: +1127 properties.expressions.extend(temp_properties.expressions) +1128 elif temp_properties: +1129 properties = temp_properties +1130 +1131 self._match(TokenType.ALIAS) +1132 +1133 # exp.Properties.Location.POST_ALIAS +1134 if not ( +1135 self._match(TokenType.SELECT, advance=False) +1136 or self._match(TokenType.WITH, advance=False) +1137 or self._match(TokenType.L_PAREN, advance=False) +1138 ): +1139 temp_properties = self._parse_properties() +1140 if properties and temp_properties: +1141 properties.expressions.extend(temp_properties.expressions) +1142 elif temp_properties: +1143 properties = temp_properties +1144 +1145 expression = self._parse_ddl_select() +1146 +1147 if create_token.token_type == TokenType.TABLE: +1148 # exp.Properties.Location.POST_EXPRESSION +1149 temp_properties = self._parse_properties() +1150 if properties and temp_properties: +1151 properties.expressions.extend(temp_properties.expressions) +1152 elif temp_properties: +1153 properties = temp_properties +1154 +1155 indexes = [] +1156 while True: +1157 index = self._parse_create_table_index() +1158 +1159 # exp.Properties.Location.POST_INDEX +1160 if self._match(TokenType.PARTITION_BY, advance=False): +1161 temp_properties = self._parse_properties() +1162 if properties and temp_properties: +1163 properties.expressions.extend(temp_properties.expressions) +1164 elif temp_properties: +1165 properties = temp_properties +1166 +1167 if not index: +1168 break +1169 else: +1170 indexes.append(index) +1171 elif create_token.token_type == TokenType.VIEW: +1172 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): +1173 no_schema_binding = True +1174 +1175 return self.expression( +1176 exp.Create, +1177 this=this, +1178 kind=create_token.text, +1179 replace=replace, +1180 unique=unique, +1181 volatile=volatile, +1182 expression=expression, +1183 exists=exists, +1184 properties=properties, +1185 indexes=indexes, +1186 no_schema_binding=no_schema_binding, +1187 begin=begin, +1188 ) +1189 +1190 def _parse_property_before(self) -> t.Optional[exp.Expression]: +1191 self._match(TokenType.COMMA) +1192 +1193 # parsers look to _prev for no/dual/default, so need to consume first +1194 self._match_text_seq("NO") +1195 self._match_text_seq("DUAL") +1196 self._match_text_seq("DEFAULT") +1197 +1198 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): +1199 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) +1200 +1201 return None 1202 -1203 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): -1204 return self._parse_sortkey(compound=True) -1205 -1206 if self._match_text_seq("SQL", "SECURITY"): -1207 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) -1208 -1209 assignment = self._match_pair( -1210 TokenType.VAR, TokenType.EQ, advance=False -1211 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) +1203 def _parse_property(self) -> t.Optional[exp.Expression]: +1204 if self._match_texts(self.PROPERTY_PARSERS): +1205 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) +1206 +1207 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): +1208 return self._parse_character_set(default=True) +1209 +1210 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): +1211 return self._parse_sortkey(compound=True) 1212 -1213 if assignment: -1214 key = self._parse_var_or_string() -1215 self._match(TokenType.EQ) -1216 return self.expression(exp.Property, this=key, value=self._parse_column()) -1217 -1218 return None +1213 if self._match_text_seq("SQL", "SECURITY"): +1214 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) +1215 +1216 assignment = self._match_pair( +1217 TokenType.VAR, TokenType.EQ, advance=False +1218 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) 1219 -1220 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: -1221 self._match(TokenType.EQ) -1222 self._match(TokenType.ALIAS) -1223 return self.expression( -1224 exp_class, -1225 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), -1226 ) -1227 -1228 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: -1229 properties = [] -1230 -1231 while True: -1232 if before: -1233 identified_property = self._parse_property_before() -1234 else: -1235 identified_property = self._parse_property() -1236 -1237 if not identified_property: -1238 break -1239 for p in ensure_list(identified_property): -1240 properties.append(p) -1241 -1242 if properties: -1243 return self.expression(exp.Properties, expressions=properties) -1244 -1245 return None -1246 -1247 def _parse_fallback(self, no=False) -> exp.Expression: -1248 self._match_text_seq("FALLBACK") -1249 return self.expression( -1250 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") -1251 ) -1252 -1253 def _parse_with_property( -1254 self, -1255 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: -1256 self._match(TokenType.WITH) -1257 if self._match(TokenType.L_PAREN, advance=False): -1258 return self._parse_wrapped_csv(self._parse_property) +1220 if assignment: +1221 key = self._parse_var_or_string() +1222 self._match(TokenType.EQ) +1223 return self.expression(exp.Property, this=key, value=self._parse_column()) +1224 +1225 return None +1226 +1227 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: +1228 self._match(TokenType.EQ) +1229 self._match(TokenType.ALIAS) +1230 return self.expression( +1231 exp_class, +1232 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), +1233 ) +1234 +1235 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: +1236 properties = [] +1237 +1238 while True: +1239 if before: +1240 identified_property = self._parse_property_before() +1241 else: +1242 identified_property = self._parse_property() +1243 +1244 if not identified_property: +1245 break +1246 for p in ensure_list(identified_property): +1247 properties.append(p) +1248 +1249 if properties: +1250 return self.expression(exp.Properties, expressions=properties) +1251 +1252 return None +1253 +1254 def _parse_fallback(self, no=False) -> exp.Expression: +1255 self._match_text_seq("FALLBACK") +1256 return self.expression( +1257 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") +1258 ) 1259 -1260 if self._match_text_seq("JOURNAL"): -1261 return self._parse_withjournaltable() -1262 -1263 if self._match_text_seq("DATA"): -1264 return self._parse_withdata(no=False) -1265 elif self._match_text_seq("NO", "DATA"): -1266 return self._parse_withdata(no=True) -1267 -1268 if not self._next: -1269 return None -1270 -1271 return self._parse_withisolatedloading() -1272 -1273 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html -1274 def _parse_definer(self) -> t.Optional[exp.Expression]: -1275 self._match(TokenType.EQ) -1276 -1277 user = self._parse_id_var() -1278 self._match(TokenType.PARAMETER) -1279 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) -1280 -1281 if not user or not host: -1282 return None +1260 def _parse_with_property( +1261 self, +1262 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: +1263 self._match(TokenType.WITH) +1264 if self._match(TokenType.L_PAREN, advance=False): +1265 return self._parse_wrapped_csv(self._parse_property) +1266 +1267 if self._match_text_seq("JOURNAL"): +1268 return self._parse_withjournaltable() +1269 +1270 if self._match_text_seq("DATA"): +1271 return self._parse_withdata(no=False) +1272 elif self._match_text_seq("NO", "DATA"): +1273 return self._parse_withdata(no=True) +1274 +1275 if not self._next: +1276 return None +1277 +1278 return self._parse_withisolatedloading() +1279 +1280 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html +1281 def _parse_definer(self) -> t.Optional[exp.Expression]: +1282 self._match(TokenType.EQ) 1283 -1284 return exp.DefinerProperty(this=f"{user}@{host}") -1285 -1286 def _parse_withjournaltable(self) -> exp.Expression: -1287 self._match(TokenType.TABLE) -1288 self._match(TokenType.EQ) -1289 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) +1284 user = self._parse_id_var() +1285 self._match(TokenType.PARAMETER) +1286 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) +1287 +1288 if not user or not host: +1289 return None 1290 -1291 def _parse_log(self, no=False) -> exp.Expression: -1292 self._match_text_seq("LOG") -1293 return self.expression(exp.LogProperty, no=no) -1294 -1295 def _parse_journal(self, no=False, dual=False) -> exp.Expression: -1296 before = self._match_text_seq("BEFORE") -1297 self._match_text_seq("JOURNAL") -1298 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) -1299 -1300 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: -1301 self._match_text_seq("NOT") -1302 self._match_text_seq("LOCAL") -1303 self._match_text_seq("AFTER", "JOURNAL") -1304 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) -1305 -1306 def _parse_checksum(self) -> exp.Expression: -1307 self._match_text_seq("CHECKSUM") -1308 self._match(TokenType.EQ) -1309 -1310 on = None -1311 if self._match(TokenType.ON): -1312 on = True -1313 elif self._match_text_seq("OFF"): -1314 on = False -1315 default = self._match(TokenType.DEFAULT) +1291 return exp.DefinerProperty(this=f"{user}@{host}") +1292 +1293 def _parse_withjournaltable(self) -> exp.Expression: +1294 self._match(TokenType.TABLE) +1295 self._match(TokenType.EQ) +1296 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) +1297 +1298 def _parse_log(self, no=False) -> exp.Expression: +1299 self._match_text_seq("LOG") +1300 return self.expression(exp.LogProperty, no=no) +1301 +1302 def _parse_journal(self, no=False, dual=False) -> exp.Expression: +1303 before = self._match_text_seq("BEFORE") +1304 self._match_text_seq("JOURNAL") +1305 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) +1306 +1307 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: +1308 self._match_text_seq("NOT") +1309 self._match_text_seq("LOCAL") +1310 self._match_text_seq("AFTER", "JOURNAL") +1311 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) +1312 +1313 def _parse_checksum(self) -> exp.Expression: +1314 self._match_text_seq("CHECKSUM") +1315 self._match(TokenType.EQ) 1316 -1317 return self.expression( -1318 exp.ChecksumProperty, -1319 on=on, -1320 default=default, -1321 ) -1322 -1323 def _parse_freespace(self) -> exp.Expression: -1324 self._match_text_seq("FREESPACE") -1325 self._match(TokenType.EQ) -1326 return self.expression( -1327 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) +1317 on = None +1318 if self._match(TokenType.ON): +1319 on = True +1320 elif self._match_text_seq("OFF"): +1321 on = False +1322 default = self._match(TokenType.DEFAULT) +1323 +1324 return self.expression( +1325 exp.ChecksumProperty, +1326 on=on, +1327 default=default, 1328 ) 1329 -1330 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: -1331 self._match_text_seq("MERGEBLOCKRATIO") -1332 if self._match(TokenType.EQ): -1333 return self.expression( -1334 exp.MergeBlockRatioProperty, -1335 this=self._parse_number(), -1336 percent=self._match(TokenType.PERCENT), -1337 ) -1338 else: -1339 return self.expression( -1340 exp.MergeBlockRatioProperty, -1341 no=no, -1342 default=default, -1343 ) -1344 -1345 def _parse_datablocksize(self, default=None) -> exp.Expression: -1346 if default: -1347 self._match_text_seq("DATABLOCKSIZE") -1348 return self.expression(exp.DataBlocksizeProperty, default=True) -1349 elif self._match_texts(("MIN", "MINIMUM")): -1350 self._match_text_seq("DATABLOCKSIZE") -1351 return self.expression(exp.DataBlocksizeProperty, min=True) -1352 elif self._match_texts(("MAX", "MAXIMUM")): -1353 self._match_text_seq("DATABLOCKSIZE") -1354 return self.expression(exp.DataBlocksizeProperty, min=False) -1355 -1356 self._match_text_seq("DATABLOCKSIZE") -1357 self._match(TokenType.EQ) -1358 size = self._parse_number() -1359 units = None -1360 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): -1361 units = self._prev.text -1362 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) -1363 -1364 def _parse_blockcompression(self) -> exp.Expression: -1365 self._match_text_seq("BLOCKCOMPRESSION") -1366 self._match(TokenType.EQ) -1367 always = self._match_text_seq("ALWAYS") -1368 manual = self._match_text_seq("MANUAL") -1369 never = self._match_text_seq("NEVER") -1370 default = self._match_text_seq("DEFAULT") -1371 autotemp = None -1372 if self._match_text_seq("AUTOTEMP"): -1373 autotemp = self._parse_schema() -1374 -1375 return self.expression( -1376 exp.BlockCompressionProperty, -1377 always=always, -1378 manual=manual, -1379 never=never, -1380 default=default, -1381 autotemp=autotemp, -1382 ) -1383 -1384 def _parse_withisolatedloading(self) -> exp.Expression: -1385 no = self._match_text_seq("NO") -1386 concurrent = self._match_text_seq("CONCURRENT") -1387 self._match_text_seq("ISOLATED", "LOADING") -1388 for_all = self._match_text_seq("FOR", "ALL") -1389 for_insert = self._match_text_seq("FOR", "INSERT") -1390 for_none = self._match_text_seq("FOR", "NONE") -1391 return self.expression( -1392 exp.IsolatedLoadingProperty, -1393 no=no, -1394 concurrent=concurrent, -1395 for_all=for_all, -1396 for_insert=for_insert, -1397 for_none=for_none, -1398 ) -1399 -1400 def _parse_locking(self) -> exp.Expression: -1401 if self._match(TokenType.TABLE): -1402 kind = "TABLE" -1403 elif self._match(TokenType.VIEW): -1404 kind = "VIEW" -1405 elif self._match(TokenType.ROW): -1406 kind = "ROW" -1407 elif self._match_text_seq("DATABASE"): -1408 kind = "DATABASE" -1409 else: -1410 kind = None -1411 -1412 if kind in ("DATABASE", "TABLE", "VIEW"): -1413 this = self._parse_table_parts() -1414 else: -1415 this = None -1416 -1417 if self._match(TokenType.FOR): -1418 for_or_in = "FOR" -1419 elif self._match(TokenType.IN): -1420 for_or_in = "IN" +1330 def _parse_freespace(self) -> exp.Expression: +1331 self._match_text_seq("FREESPACE") +1332 self._match(TokenType.EQ) +1333 return self.expression( +1334 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) +1335 ) +1336 +1337 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: +1338 self._match_text_seq("MERGEBLOCKRATIO") +1339 if self._match(TokenType.EQ): +1340 return self.expression( +1341 exp.MergeBlockRatioProperty, +1342 this=self._parse_number(), +1343 percent=self._match(TokenType.PERCENT), +1344 ) +1345 else: +1346 return self.expression( +1347 exp.MergeBlockRatioProperty, +1348 no=no, +1349 default=default, +1350 ) +1351 +1352 def _parse_datablocksize(self, default=None) -> exp.Expression: +1353 if default: +1354 self._match_text_seq("DATABLOCKSIZE") +1355 return self.expression(exp.DataBlocksizeProperty, default=True) +1356 elif self._match_texts(("MIN", "MINIMUM")): +1357 self._match_text_seq("DATABLOCKSIZE") +1358 return self.expression(exp.DataBlocksizeProperty, min=True) +1359 elif self._match_texts(("MAX", "MAXIMUM")): +1360 self._match_text_seq("DATABLOCKSIZE") +1361 return self.expression(exp.DataBlocksizeProperty, min=False) +1362 +1363 self._match_text_seq("DATABLOCKSIZE") +1364 self._match(TokenType.EQ) +1365 size = self._parse_number() +1366 units = None +1367 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): +1368 units = self._prev.text +1369 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) +1370 +1371 def _parse_blockcompression(self) -> exp.Expression: +1372 self._match_text_seq("BLOCKCOMPRESSION") +1373 self._match(TokenType.EQ) +1374 always = self._match_text_seq("ALWAYS") +1375 manual = self._match_text_seq("MANUAL") +1376 never = self._match_text_seq("NEVER") +1377 default = self._match_text_seq("DEFAULT") +1378 autotemp = None +1379 if self._match_text_seq("AUTOTEMP"): +1380 autotemp = self._parse_schema() +1381 +1382 return self.expression( +1383 exp.BlockCompressionProperty, +1384 always=always, +1385 manual=manual, +1386 never=never, +1387 default=default, +1388 autotemp=autotemp, +1389 ) +1390 +1391 def _parse_withisolatedloading(self) -> exp.Expression: +1392 no = self._match_text_seq("NO") +1393 concurrent = self._match_text_seq("CONCURRENT") +1394 self._match_text_seq("ISOLATED", "LOADING") +1395 for_all = self._match_text_seq("FOR", "ALL") +1396 for_insert = self._match_text_seq("FOR", "INSERT") +1397 for_none = self._match_text_seq("FOR", "NONE") +1398 return self.expression( +1399 exp.IsolatedLoadingProperty, +1400 no=no, +1401 concurrent=concurrent, +1402 for_all=for_all, +1403 for_insert=for_insert, +1404 for_none=for_none, +1405 ) +1406 +1407 def _parse_locking(self) -> exp.Expression: +1408 if self._match(TokenType.TABLE): +1409 kind = "TABLE" +1410 elif self._match(TokenType.VIEW): +1411 kind = "VIEW" +1412 elif self._match(TokenType.ROW): +1413 kind = "ROW" +1414 elif self._match_text_seq("DATABASE"): +1415 kind = "DATABASE" +1416 else: +1417 kind = None +1418 +1419 if kind in ("DATABASE", "TABLE", "VIEW"): +1420 this = self._parse_table_parts() 1421 else: -1422 for_or_in = None +1422 this = None 1423 -1424 if self._match_text_seq("ACCESS"): -1425 lock_type = "ACCESS" -1426 elif self._match_texts(("EXCL", "EXCLUSIVE")): -1427 lock_type = "EXCLUSIVE" -1428 elif self._match_text_seq("SHARE"): -1429 lock_type = "SHARE" -1430 elif self._match_text_seq("READ"): -1431 lock_type = "READ" -1432 elif self._match_text_seq("WRITE"): -1433 lock_type = "WRITE" -1434 elif self._match_text_seq("CHECKSUM"): -1435 lock_type = "CHECKSUM" -1436 else: -1437 lock_type = None -1438 -1439 override = self._match_text_seq("OVERRIDE") -1440 -1441 return self.expression( -1442 exp.LockingProperty, -1443 this=this, -1444 kind=kind, -1445 for_or_in=for_or_in, -1446 lock_type=lock_type, -1447 override=override, -1448 ) -1449 -1450 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: -1451 if self._match(TokenType.PARTITION_BY): -1452 return self._parse_csv(self._parse_conjunction) -1453 return [] -1454 -1455 def _parse_partitioned_by(self) -> exp.Expression: -1456 self._match(TokenType.EQ) -1457 return self.expression( -1458 exp.PartitionedByProperty, -1459 this=self._parse_schema() or self._parse_bracket(self._parse_field()), -1460 ) +1424 if self._match(TokenType.FOR): +1425 for_or_in = "FOR" +1426 elif self._match(TokenType.IN): +1427 for_or_in = "IN" +1428 else: +1429 for_or_in = None +1430 +1431 if self._match_text_seq("ACCESS"): +1432 lock_type = "ACCESS" +1433 elif self._match_texts(("EXCL", "EXCLUSIVE")): +1434 lock_type = "EXCLUSIVE" +1435 elif self._match_text_seq("SHARE"): +1436 lock_type = "SHARE" +1437 elif self._match_text_seq("READ"): +1438 lock_type = "READ" +1439 elif self._match_text_seq("WRITE"): +1440 lock_type = "WRITE" +1441 elif self._match_text_seq("CHECKSUM"): +1442 lock_type = "CHECKSUM" +1443 else: +1444 lock_type = None +1445 +1446 override = self._match_text_seq("OVERRIDE") +1447 +1448 return self.expression( +1449 exp.LockingProperty, +1450 this=this, +1451 kind=kind, +1452 for_or_in=for_or_in, +1453 lock_type=lock_type, +1454 override=override, +1455 ) +1456 +1457 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: +1458 if self._match(TokenType.PARTITION_BY): +1459 return self._parse_csv(self._parse_conjunction) +1460 return [] 1461 -1462 def _parse_withdata(self, no=False) -> exp.Expression: -1463 if self._match_text_seq("AND", "STATISTICS"): -1464 statistics = True -1465 elif self._match_text_seq("AND", "NO", "STATISTICS"): -1466 statistics = False -1467 else: -1468 statistics = None -1469 -1470 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) -1471 -1472 def _parse_noprimaryindex(self) -> exp.Expression: -1473 self._match_text_seq("PRIMARY", "INDEX") -1474 return exp.NoPrimaryIndexProperty() -1475 -1476 def _parse_oncommit(self) -> exp.Expression: -1477 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") -1478 return exp.OnCommitProperty() -1479 -1480 def _parse_distkey(self) -> exp.Expression: -1481 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) +1462 def _parse_partitioned_by(self) -> exp.Expression: +1463 self._match(TokenType.EQ) +1464 return self.expression( +1465 exp.PartitionedByProperty, +1466 this=self._parse_schema() or self._parse_bracket(self._parse_field()), +1467 ) +1468 +1469 def _parse_withdata(self, no=False) -> exp.Expression: +1470 if self._match_text_seq("AND", "STATISTICS"): +1471 statistics = True +1472 elif self._match_text_seq("AND", "NO", "STATISTICS"): +1473 statistics = False +1474 else: +1475 statistics = None +1476 +1477 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) +1478 +1479 def _parse_noprimaryindex(self) -> exp.Expression: +1480 self._match_text_seq("PRIMARY", "INDEX") +1481 return exp.NoPrimaryIndexProperty() 1482 -1483 def _parse_create_like(self) -> t.Optional[exp.Expression]: -1484 table = self._parse_table(schema=True) -1485 options = [] -1486 while self._match_texts(("INCLUDING", "EXCLUDING")): -1487 this = self._prev.text.upper() -1488 id_var = self._parse_id_var() +1483 def _parse_oncommit(self) -> exp.Expression: +1484 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") +1485 return exp.OnCommitProperty() +1486 +1487 def _parse_distkey(self) -> exp.Expression: +1488 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) 1489 -1490 if not id_var: -1491 return None -1492 -1493 options.append( -1494 self.expression( -1495 exp.Property, -1496 this=this, -1497 value=exp.Var(this=id_var.this.upper()), -1498 ) -1499 ) -1500 return self.expression(exp.LikeProperty, this=table, expressions=options) -1501 -1502 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: -1503 return self.expression( -1504 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound -1505 ) -1506 -1507 def _parse_character_set(self, default: bool = False) -> exp.Expression: -1508 self._match(TokenType.EQ) -1509 return self.expression( -1510 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default -1511 ) -1512 -1513 def _parse_returns(self) -> exp.Expression: -1514 value: t.Optional[exp.Expression] -1515 is_table = self._match(TokenType.TABLE) -1516 -1517 if is_table: -1518 if self._match(TokenType.LT): -1519 value = self.expression( -1520 exp.Schema, -1521 this="TABLE", -1522 expressions=self._parse_csv(self._parse_struct_kwargs), -1523 ) -1524 if not self._match(TokenType.GT): -1525 self.raise_error("Expecting >") -1526 else: -1527 value = self._parse_schema(exp.Var(this="TABLE")) -1528 else: -1529 value = self._parse_types() -1530 -1531 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) -1532 -1533 def _parse_temporary(self, global_=False) -> exp.Expression: -1534 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" -1535 return self.expression(exp.TemporaryProperty, global_=global_) -1536 -1537 def _parse_describe(self) -> exp.Expression: -1538 kind = self._match_set(self.CREATABLES) and self._prev.text -1539 this = self._parse_table() -1540 -1541 return self.expression(exp.Describe, this=this, kind=kind) -1542 -1543 def _parse_insert(self) -> exp.Expression: -1544 overwrite = self._match(TokenType.OVERWRITE) -1545 local = self._match(TokenType.LOCAL) -1546 alternative = None +1490 def _parse_create_like(self) -> t.Optional[exp.Expression]: +1491 table = self._parse_table(schema=True) +1492 options = [] +1493 while self._match_texts(("INCLUDING", "EXCLUDING")): +1494 this = self._prev.text.upper() +1495 id_var = self._parse_id_var() +1496 +1497 if not id_var: +1498 return None +1499 +1500 options.append( +1501 self.expression( +1502 exp.Property, +1503 this=this, +1504 value=exp.Var(this=id_var.this.upper()), +1505 ) +1506 ) +1507 return self.expression(exp.LikeProperty, this=table, expressions=options) +1508 +1509 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: +1510 return self.expression( +1511 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound +1512 ) +1513 +1514 def _parse_character_set(self, default: bool = False) -> exp.Expression: +1515 self._match(TokenType.EQ) +1516 return self.expression( +1517 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default +1518 ) +1519 +1520 def _parse_returns(self) -> exp.Expression: +1521 value: t.Optional[exp.Expression] +1522 is_table = self._match(TokenType.TABLE) +1523 +1524 if is_table: +1525 if self._match(TokenType.LT): +1526 value = self.expression( +1527 exp.Schema, +1528 this="TABLE", +1529 expressions=self._parse_csv(self._parse_struct_kwargs), +1530 ) +1531 if not self._match(TokenType.GT): +1532 self.raise_error("Expecting >") +1533 else: +1534 value = self._parse_schema(exp.Var(this="TABLE")) +1535 else: +1536 value = self._parse_types() +1537 +1538 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) +1539 +1540 def _parse_temporary(self, global_=False) -> exp.Expression: +1541 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" +1542 return self.expression(exp.TemporaryProperty, global_=global_) +1543 +1544 def _parse_describe(self) -> exp.Expression: +1545 kind = self._match_set(self.CREATABLES) and self._prev.text +1546 this = self._parse_table() 1547 -1548 if self._match_text_seq("DIRECTORY"): -1549 this: t.Optional[exp.Expression] = self.expression( -1550 exp.Directory, -1551 this=self._parse_var_or_string(), -1552 local=local, -1553 row_format=self._parse_row_format(match_row=True), -1554 ) -1555 else: -1556 if self._match(TokenType.OR): -1557 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text -1558 -1559 self._match(TokenType.INTO) -1560 self._match(TokenType.TABLE) -1561 this = self._parse_table(schema=True) -1562 -1563 return self.expression( -1564 exp.Insert, -1565 this=this, -1566 exists=self._parse_exists(), -1567 partition=self._parse_partition(), -1568 expression=self._parse_ddl_select(), -1569 returning=self._parse_returning(), -1570 overwrite=overwrite, -1571 alternative=alternative, -1572 ) -1573 -1574 def _parse_returning(self) -> t.Optional[exp.Expression]: -1575 if not self._match(TokenType.RETURNING): -1576 return None -1577 -1578 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) -1579 -1580 def _parse_row(self) -> t.Optional[exp.Expression]: -1581 if not self._match(TokenType.FORMAT): -1582 return None -1583 return self._parse_row_format() +1548 return self.expression(exp.Describe, this=this, kind=kind) +1549 +1550 def _parse_insert(self) -> exp.Expression: +1551 overwrite = self._match(TokenType.OVERWRITE) +1552 local = self._match(TokenType.LOCAL) +1553 alternative = None +1554 +1555 if self._match_text_seq("DIRECTORY"): +1556 this: t.Optional[exp.Expression] = self.expression( +1557 exp.Directory, +1558 this=self._parse_var_or_string(), +1559 local=local, +1560 row_format=self._parse_row_format(match_row=True), +1561 ) +1562 else: +1563 if self._match(TokenType.OR): +1564 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text +1565 +1566 self._match(TokenType.INTO) +1567 self._match(TokenType.TABLE) +1568 this = self._parse_table(schema=True) +1569 +1570 return self.expression( +1571 exp.Insert, +1572 this=this, +1573 exists=self._parse_exists(), +1574 partition=self._parse_partition(), +1575 expression=self._parse_ddl_select(), +1576 returning=self._parse_returning(), +1577 overwrite=overwrite, +1578 alternative=alternative, +1579 ) +1580 +1581 def _parse_returning(self) -> t.Optional[exp.Expression]: +1582 if not self._match(TokenType.RETURNING): +1583 return None 1584 -1585 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: -1586 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): -1587 return None -1588 -1589 if self._match_text_seq("SERDE"): -1590 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) +1585 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) +1586 +1587 def _parse_row(self) -> t.Optional[exp.Expression]: +1588 if not self._match(TokenType.FORMAT): +1589 return None +1590 return self._parse_row_format() 1591 -1592 self._match_text_seq("DELIMITED") -1593 -1594 kwargs = {} +1592 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: +1593 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): +1594 return None 1595 -1596 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): -1597 kwargs["fields"] = self._parse_string() -1598 if self._match_text_seq("ESCAPED", "BY"): -1599 kwargs["escaped"] = self._parse_string() -1600 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): -1601 kwargs["collection_items"] = self._parse_string() -1602 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): -1603 kwargs["map_keys"] = self._parse_string() -1604 if self._match_text_seq("LINES", "TERMINATED", "BY"): -1605 kwargs["lines"] = self._parse_string() -1606 if self._match_text_seq("NULL", "DEFINED", "AS"): -1607 kwargs["null"] = self._parse_string() -1608 -1609 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore -1610 -1611 def _parse_load_data(self) -> exp.Expression: -1612 local = self._match(TokenType.LOCAL) -1613 self._match_text_seq("INPATH") -1614 inpath = self._parse_string() -1615 overwrite = self._match(TokenType.OVERWRITE) -1616 self._match_pair(TokenType.INTO, TokenType.TABLE) +1596 if self._match_text_seq("SERDE"): +1597 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) +1598 +1599 self._match_text_seq("DELIMITED") +1600 +1601 kwargs = {} +1602 +1603 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): +1604 kwargs["fields"] = self._parse_string() +1605 if self._match_text_seq("ESCAPED", "BY"): +1606 kwargs["escaped"] = self._parse_string() +1607 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): +1608 kwargs["collection_items"] = self._parse_string() +1609 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): +1610 kwargs["map_keys"] = self._parse_string() +1611 if self._match_text_seq("LINES", "TERMINATED", "BY"): +1612 kwargs["lines"] = self._parse_string() +1613 if self._match_text_seq("NULL", "DEFINED", "AS"): +1614 kwargs["null"] = self._parse_string() +1615 +1616 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore 1617 -1618 return self.expression( -1619 exp.LoadData, -1620 this=self._parse_table(schema=True), -1621 local=local, -1622 overwrite=overwrite, -1623 inpath=inpath, -1624 partition=self._parse_partition(), -1625 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), -1626 serde=self._match_text_seq("SERDE") and self._parse_string(), -1627 ) -1628 -1629 def _parse_delete(self) -> exp.Expression: -1630 self._match(TokenType.FROM) -1631 -1632 return self.expression( -1633 exp.Delete, -1634 this=self._parse_table(schema=True), -1635 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), -1636 where=self._parse_where(), -1637 returning=self._parse_returning(), -1638 ) -1639 -1640 def _parse_update(self) -> exp.Expression: -1641 return self.expression( -1642 exp.Update, -1643 **{ # type: ignore -1644 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), -1645 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), -1646 "from": self._parse_from(), -1647 "where": self._parse_where(), -1648 "returning": self._parse_returning(), -1649 }, -1650 ) -1651 -1652 def _parse_uncache(self) -> exp.Expression: -1653 if not self._match(TokenType.TABLE): -1654 self.raise_error("Expecting TABLE after UNCACHE") -1655 -1656 return self.expression( -1657 exp.Uncache, -1658 exists=self._parse_exists(), -1659 this=self._parse_table(schema=True), -1660 ) -1661 -1662 def _parse_cache(self) -> exp.Expression: -1663 lazy = self._match(TokenType.LAZY) -1664 self._match(TokenType.TABLE) -1665 table = self._parse_table(schema=True) -1666 options = [] -1667 -1668 if self._match(TokenType.OPTIONS): -1669 self._match_l_paren() -1670 k = self._parse_string() -1671 self._match(TokenType.EQ) -1672 v = self._parse_string() -1673 options = [k, v] -1674 self._match_r_paren() -1675 -1676 self._match(TokenType.ALIAS) -1677 return self.expression( -1678 exp.Cache, -1679 this=table, -1680 lazy=lazy, -1681 options=options, -1682 expression=self._parse_select(nested=True), -1683 ) -1684 -1685 def _parse_partition(self) -> t.Optional[exp.Expression]: -1686 if not self._match(TokenType.PARTITION): -1687 return None -1688 -1689 return self.expression( -1690 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) -1691 ) -1692 -1693 def _parse_value(self) -> exp.Expression: -1694 if self._match(TokenType.L_PAREN): -1695 expressions = self._parse_csv(self._parse_conjunction) -1696 self._match_r_paren() -1697 return self.expression(exp.Tuple, expressions=expressions) -1698 -1699 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. -1700 # Source: https://prestodb.io/docs/current/sql/values.html -1701 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) -1702 -1703 def _parse_select( -1704 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True -1705 ) -> t.Optional[exp.Expression]: -1706 cte = self._parse_with() -1707 if cte: -1708 this = self._parse_statement() +1618 def _parse_load_data(self) -> exp.Expression: +1619 local = self._match(TokenType.LOCAL) +1620 self._match_text_seq("INPATH") +1621 inpath = self._parse_string() +1622 overwrite = self._match(TokenType.OVERWRITE) +1623 self._match_pair(TokenType.INTO, TokenType.TABLE) +1624 +1625 return self.expression( +1626 exp.LoadData, +1627 this=self._parse_table(schema=True), +1628 local=local, +1629 overwrite=overwrite, +1630 inpath=inpath, +1631 partition=self._parse_partition(), +1632 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), +1633 serde=self._match_text_seq("SERDE") and self._parse_string(), +1634 ) +1635 +1636 def _parse_delete(self) -> exp.Expression: +1637 self._match(TokenType.FROM) +1638 +1639 return self.expression( +1640 exp.Delete, +1641 this=self._parse_table(schema=True), +1642 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), +1643 where=self._parse_where(), +1644 returning=self._parse_returning(), +1645 ) +1646 +1647 def _parse_update(self) -> exp.Expression: +1648 return self.expression( +1649 exp.Update, +1650 **{ # type: ignore +1651 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), +1652 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), +1653 "from": self._parse_from(), +1654 "where": self._parse_where(), +1655 "returning": self._parse_returning(), +1656 }, +1657 ) +1658 +1659 def _parse_uncache(self) -> exp.Expression: +1660 if not self._match(TokenType.TABLE): +1661 self.raise_error("Expecting TABLE after UNCACHE") +1662 +1663 return self.expression( +1664 exp.Uncache, +1665 exists=self._parse_exists(), +1666 this=self._parse_table(schema=True), +1667 ) +1668 +1669 def _parse_cache(self) -> exp.Expression: +1670 lazy = self._match(TokenType.LAZY) +1671 self._match(TokenType.TABLE) +1672 table = self._parse_table(schema=True) +1673 options = [] +1674 +1675 if self._match(TokenType.OPTIONS): +1676 self._match_l_paren() +1677 k = self._parse_string() +1678 self._match(TokenType.EQ) +1679 v = self._parse_string() +1680 options = [k, v] +1681 self._match_r_paren() +1682 +1683 self._match(TokenType.ALIAS) +1684 return self.expression( +1685 exp.Cache, +1686 this=table, +1687 lazy=lazy, +1688 options=options, +1689 expression=self._parse_select(nested=True), +1690 ) +1691 +1692 def _parse_partition(self) -> t.Optional[exp.Expression]: +1693 if not self._match(TokenType.PARTITION): +1694 return None +1695 +1696 return self.expression( +1697 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) +1698 ) +1699 +1700 def _parse_value(self) -> exp.Expression: +1701 if self._match(TokenType.L_PAREN): +1702 expressions = self._parse_csv(self._parse_conjunction) +1703 self._match_r_paren() +1704 return self.expression(exp.Tuple, expressions=expressions) +1705 +1706 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. +1707 # Source: https://prestodb.io/docs/current/sql/values.html +1708 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) 1709 -1710 if not this: -1711 self.raise_error("Failed to parse any statement following CTE") -1712 return cte -1713 -1714 if "with" in this.arg_types: -1715 this.set("with", cte) -1716 else: -1717 self.raise_error(f"{this.key} does not support CTE") -1718 this = cte -1719 elif self._match(TokenType.SELECT): -1720 comments = self._prev_comments -1721 -1722 kind = ( -1723 self._match(TokenType.ALIAS) -1724 and self._match_texts(("STRUCT", "VALUE")) -1725 and self._prev.text -1726 ) -1727 hint = self._parse_hint() -1728 all_ = self._match(TokenType.ALL) -1729 distinct = self._match(TokenType.DISTINCT) -1730 -1731 if distinct: -1732 distinct = self.expression( -1733 exp.Distinct, -1734 on=self._parse_value() if self._match(TokenType.ON) else None, -1735 ) -1736 -1737 if all_ and distinct: -1738 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") -1739 -1740 limit = self._parse_limit(top=True) -1741 expressions = self._parse_csv(self._parse_expression) -1742 -1743 this = self.expression( -1744 exp.Select, -1745 kind=kind, -1746 hint=hint, -1747 distinct=distinct, -1748 expressions=expressions, -1749 limit=limit, -1750 ) -1751 this.comments = comments -1752 -1753 into = self._parse_into() -1754 if into: -1755 this.set("into", into) -1756 -1757 from_ = self._parse_from() -1758 if from_: -1759 this.set("from", from_) -1760 -1761 self._parse_query_modifiers(this) -1762 elif (table or nested) and self._match(TokenType.L_PAREN): -1763 this = self._parse_table() if table else self._parse_select(nested=True) -1764 self._parse_query_modifiers(this) -1765 this = self._parse_set_operations(this) -1766 self._match_r_paren() +1710 def _parse_select( +1711 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True +1712 ) -> t.Optional[exp.Expression]: +1713 cte = self._parse_with() +1714 if cte: +1715 this = self._parse_statement() +1716 +1717 if not this: +1718 self.raise_error("Failed to parse any statement following CTE") +1719 return cte +1720 +1721 if "with" in this.arg_types: +1722 this.set("with", cte) +1723 else: +1724 self.raise_error(f"{this.key} does not support CTE") +1725 this = cte +1726 elif self._match(TokenType.SELECT): +1727 comments = self._prev_comments +1728 +1729 kind = ( +1730 self._match(TokenType.ALIAS) +1731 and self._match_texts(("STRUCT", "VALUE")) +1732 and self._prev.text +1733 ) +1734 hint = self._parse_hint() +1735 all_ = self._match(TokenType.ALL) +1736 distinct = self._match(TokenType.DISTINCT) +1737 +1738 if distinct: +1739 distinct = self.expression( +1740 exp.Distinct, +1741 on=self._parse_value() if self._match(TokenType.ON) else None, +1742 ) +1743 +1744 if all_ and distinct: +1745 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") +1746 +1747 limit = self._parse_limit(top=True) +1748 expressions = self._parse_csv(self._parse_expression) +1749 +1750 this = self.expression( +1751 exp.Select, +1752 kind=kind, +1753 hint=hint, +1754 distinct=distinct, +1755 expressions=expressions, +1756 limit=limit, +1757 ) +1758 this.comments = comments +1759 +1760 into = self._parse_into() +1761 if into: +1762 this.set("into", into) +1763 +1764 from_ = self._parse_from() +1765 if from_: +1766 this.set("from", from_) 1767 -1768 # early return so that subquery unions aren't parsed again -1769 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 -1770 # Union ALL should be a property of the top select node, not the subquery -1771 return self._parse_subquery(this, parse_alias=parse_subquery_alias) -1772 elif self._match(TokenType.VALUES): -1773 this = self.expression( -1774 exp.Values, -1775 expressions=self._parse_csv(self._parse_value), -1776 alias=self._parse_table_alias(), -1777 ) -1778 else: -1779 this = None -1780 -1781 return self._parse_set_operations(this) -1782 -1783 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: -1784 if not skip_with_token and not self._match(TokenType.WITH): -1785 return None -1786 -1787 recursive = self._match(TokenType.RECURSIVE) -1788 -1789 expressions = [] -1790 while True: -1791 expressions.append(self._parse_cte()) -1792 -1793 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): -1794 break -1795 else: -1796 self._match(TokenType.WITH) -1797 -1798 return self.expression(exp.With, expressions=expressions, recursive=recursive) +1768 self._parse_query_modifiers(this) +1769 elif (table or nested) and self._match(TokenType.L_PAREN): +1770 this = self._parse_table() if table else self._parse_select(nested=True) +1771 self._parse_query_modifiers(this) +1772 this = self._parse_set_operations(this) +1773 self._match_r_paren() +1774 +1775 # early return so that subquery unions aren't parsed again +1776 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 +1777 # Union ALL should be a property of the top select node, not the subquery +1778 return self._parse_subquery(this, parse_alias=parse_subquery_alias) +1779 elif self._match(TokenType.VALUES): +1780 this = self.expression( +1781 exp.Values, +1782 expressions=self._parse_csv(self._parse_value), +1783 alias=self._parse_table_alias(), +1784 ) +1785 else: +1786 this = None +1787 +1788 return self._parse_set_operations(this) +1789 +1790 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: +1791 if not skip_with_token and not self._match(TokenType.WITH): +1792 return None +1793 +1794 recursive = self._match(TokenType.RECURSIVE) +1795 +1796 expressions = [] +1797 while True: +1798 expressions.append(self._parse_cte()) 1799 -1800 def _parse_cte(self) -> exp.Expression: -1801 alias = self._parse_table_alias() -1802 if not alias or not alias.this: -1803 self.raise_error("Expected CTE to have alias") +1800 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): +1801 break +1802 else: +1803 self._match(TokenType.WITH) 1804 -1805 self._match(TokenType.ALIAS) +1805 return self.expression(exp.With, expressions=expressions, recursive=recursive) 1806 -1807 return self.expression( -1808 exp.CTE, -1809 this=self._parse_wrapped(self._parse_statement), -1810 alias=alias, -1811 ) -1812 -1813 def _parse_table_alias( -1814 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None -1815 ) -> t.Optional[exp.Expression]: -1816 any_token = self._match(TokenType.ALIAS) -1817 alias = ( -1818 self._parse_id_var(any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) -1819 or self._parse_string_as_identifier() -1820 ) -1821 -1822 index = self._index -1823 if self._match(TokenType.L_PAREN): -1824 columns = self._parse_csv(self._parse_function_parameter) -1825 self._match_r_paren() if columns else self._retreat(index) -1826 else: -1827 columns = None +1807 def _parse_cte(self) -> exp.Expression: +1808 alias = self._parse_table_alias() +1809 if not alias or not alias.this: +1810 self.raise_error("Expected CTE to have alias") +1811 +1812 self._match(TokenType.ALIAS) +1813 +1814 return self.expression( +1815 exp.CTE, +1816 this=self._parse_wrapped(self._parse_statement), +1817 alias=alias, +1818 ) +1819 +1820 def _parse_table_alias( +1821 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None +1822 ) -> t.Optional[exp.Expression]: +1823 any_token = self._match(TokenType.ALIAS) +1824 alias = ( +1825 self._parse_id_var(any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) +1826 or self._parse_string_as_identifier() +1827 ) 1828 -1829 if not alias and not columns: -1830 return None -1831 -1832 return self.expression(exp.TableAlias, this=alias, columns=columns) -1833 -1834 def _parse_subquery( -1835 self, this: t.Optional[exp.Expression], parse_alias: bool = True -1836 ) -> exp.Expression: -1837 return self.expression( -1838 exp.Subquery, -1839 this=this, -1840 pivots=self._parse_pivots(), -1841 alias=self._parse_table_alias() if parse_alias else None, -1842 ) -1843 -1844 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: -1845 if not isinstance(this, self.MODIFIABLES): -1846 return -1847 -1848 table = isinstance(this, exp.Table) -1849 -1850 while True: -1851 lateral = self._parse_lateral() -1852 join = self._parse_join() -1853 comma = None if table else self._match(TokenType.COMMA) -1854 if lateral: -1855 this.append("laterals", lateral) -1856 if join: -1857 this.append("joins", join) -1858 if comma: -1859 this.args["from"].append("expressions", self._parse_table()) -1860 if not (lateral or join or comma): -1861 break -1862 -1863 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): -1864 expression = parser(self) -1865 -1866 if expression: -1867 this.set(key, expression) -1868 -1869 def _parse_hint(self) -> t.Optional[exp.Expression]: -1870 if self._match(TokenType.HINT): -1871 hints = self._parse_csv(self._parse_function) -1872 if not self._match_pair(TokenType.STAR, TokenType.SLASH): -1873 self.raise_error("Expected */ after HINT") -1874 return self.expression(exp.Hint, expressions=hints) +1829 index = self._index +1830 if self._match(TokenType.L_PAREN): +1831 columns = self._parse_csv(self._parse_function_parameter) +1832 self._match_r_paren() if columns else self._retreat(index) +1833 else: +1834 columns = None +1835 +1836 if not alias and not columns: +1837 return None +1838 +1839 return self.expression(exp.TableAlias, this=alias, columns=columns) +1840 +1841 def _parse_subquery( +1842 self, this: t.Optional[exp.Expression], parse_alias: bool = True +1843 ) -> exp.Expression: +1844 return self.expression( +1845 exp.Subquery, +1846 this=this, +1847 pivots=self._parse_pivots(), +1848 alias=self._parse_table_alias() if parse_alias else None, +1849 ) +1850 +1851 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: +1852 if not isinstance(this, self.MODIFIABLES): +1853 return +1854 +1855 table = isinstance(this, exp.Table) +1856 +1857 while True: +1858 lateral = self._parse_lateral() +1859 join = self._parse_join() +1860 comma = None if table else self._match(TokenType.COMMA) +1861 if lateral: +1862 this.append("laterals", lateral) +1863 if join: +1864 this.append("joins", join) +1865 if comma: +1866 this.args["from"].append("expressions", self._parse_table()) +1867 if not (lateral or join or comma): +1868 break +1869 +1870 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): +1871 expression = parser(self) +1872 +1873 if expression: +1874 this.set(key, expression) 1875 -1876 return None -1877 -1878 def _parse_into(self) -> t.Optional[exp.Expression]: -1879 if not self._match(TokenType.INTO): -1880 return None -1881 -1882 temp = self._match(TokenType.TEMPORARY) -1883 unlogged = self._match(TokenType.UNLOGGED) -1884 self._match(TokenType.TABLE) -1885 -1886 return self.expression( -1887 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged -1888 ) -1889 -1890 def _parse_from(self) -> t.Optional[exp.Expression]: -1891 if not self._match(TokenType.FROM): -1892 return None -1893 -1894 return self.expression( -1895 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) -1896 ) -1897 -1898 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: -1899 if not self._match(TokenType.MATCH_RECOGNIZE): -1900 return None -1901 self._match_l_paren() -1902 -1903 partition = self._parse_partition_by() -1904 order = self._parse_order() -1905 measures = ( -1906 self._parse_alias(self._parse_conjunction()) -1907 if self._match_text_seq("MEASURES") -1908 else None -1909 ) -1910 -1911 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): -1912 rows = exp.Var(this="ONE ROW PER MATCH") -1913 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): -1914 text = "ALL ROWS PER MATCH" -1915 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): -1916 text += f" SHOW EMPTY MATCHES" -1917 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): -1918 text += f" OMIT EMPTY MATCHES" -1919 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): -1920 text += f" WITH UNMATCHED ROWS" -1921 rows = exp.Var(this=text) -1922 else: -1923 rows = None -1924 -1925 if self._match_text_seq("AFTER", "MATCH", "SKIP"): -1926 text = "AFTER MATCH SKIP" -1927 if self._match_text_seq("PAST", "LAST", "ROW"): -1928 text += f" PAST LAST ROW" -1929 elif self._match_text_seq("TO", "NEXT", "ROW"): -1930 text += f" TO NEXT ROW" -1931 elif self._match_text_seq("TO", "FIRST"): -1932 text += f" TO FIRST {self._advance_any().text}" # type: ignore -1933 elif self._match_text_seq("TO", "LAST"): -1934 text += f" TO LAST {self._advance_any().text}" # type: ignore -1935 after = exp.Var(this=text) -1936 else: -1937 after = None -1938 -1939 if self._match_text_seq("PATTERN"): -1940 self._match_l_paren() -1941 -1942 if not self._curr: -1943 self.raise_error("Expecting )", self._curr) -1944 -1945 paren = 1 -1946 start = self._curr -1947 -1948 while self._curr and paren > 0: -1949 if self._curr.token_type == TokenType.L_PAREN: -1950 paren += 1 -1951 if self._curr.token_type == TokenType.R_PAREN: -1952 paren -= 1 -1953 end = self._prev -1954 self._advance() -1955 if paren > 0: -1956 self.raise_error("Expecting )", self._curr) -1957 pattern = exp.Var(this=self._find_sql(start, end)) -1958 else: -1959 pattern = None -1960 -1961 define = ( -1962 self._parse_alias(self._parse_conjunction()) if self._match_text_seq("DEFINE") else None -1963 ) -1964 self._match_r_paren() -1965 -1966 return self.expression( -1967 exp.MatchRecognize, -1968 partition_by=partition, -1969 order=order, -1970 measures=measures, -1971 rows=rows, -1972 after=after, -1973 pattern=pattern, -1974 define=define, -1975 ) -1976 -1977 def _parse_lateral(self) -> t.Optional[exp.Expression]: -1978 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) -1979 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) -1980 -1981 if outer_apply or cross_apply: -1982 this = self._parse_select(table=True) -1983 view = None -1984 outer = not cross_apply -1985 elif self._match(TokenType.LATERAL): -1986 this = self._parse_select(table=True) -1987 view = self._match(TokenType.VIEW) -1988 outer = self._match(TokenType.OUTER) -1989 else: -1990 return None -1991 -1992 if not this: -1993 this = self._parse_function() or self._parse_id_var(any_token=False) -1994 while self._match(TokenType.DOT): -1995 this = exp.Dot( -1996 this=this, -1997 expression=self._parse_function() or self._parse_id_var(any_token=False), -1998 ) -1999 -2000 table_alias: t.Optional[exp.Expression] -2001 -2002 if view: -2003 table = self._parse_id_var(any_token=False) -2004 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] -2005 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) -2006 else: -2007 table_alias = self._parse_table_alias() +1876 def _parse_hint(self) -> t.Optional[exp.Expression]: +1877 if self._match(TokenType.HINT): +1878 hints = self._parse_csv(self._parse_function) +1879 if not self._match_pair(TokenType.STAR, TokenType.SLASH): +1880 self.raise_error("Expected */ after HINT") +1881 return self.expression(exp.Hint, expressions=hints) +1882 +1883 return None +1884 +1885 def _parse_into(self) -> t.Optional[exp.Expression]: +1886 if not self._match(TokenType.INTO): +1887 return None +1888 +1889 temp = self._match(TokenType.TEMPORARY) +1890 unlogged = self._match(TokenType.UNLOGGED) +1891 self._match(TokenType.TABLE) +1892 +1893 return self.expression( +1894 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged +1895 ) +1896 +1897 def _parse_from(self) -> t.Optional[exp.Expression]: +1898 if not self._match(TokenType.FROM): +1899 return None +1900 +1901 return self.expression( +1902 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) +1903 ) +1904 +1905 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: +1906 if not self._match(TokenType.MATCH_RECOGNIZE): +1907 return None +1908 self._match_l_paren() +1909 +1910 partition = self._parse_partition_by() +1911 order = self._parse_order() +1912 measures = ( +1913 self._parse_alias(self._parse_conjunction()) +1914 if self._match_text_seq("MEASURES") +1915 else None +1916 ) +1917 +1918 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): +1919 rows = exp.Var(this="ONE ROW PER MATCH") +1920 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): +1921 text = "ALL ROWS PER MATCH" +1922 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): +1923 text += f" SHOW EMPTY MATCHES" +1924 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): +1925 text += f" OMIT EMPTY MATCHES" +1926 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): +1927 text += f" WITH UNMATCHED ROWS" +1928 rows = exp.Var(this=text) +1929 else: +1930 rows = None +1931 +1932 if self._match_text_seq("AFTER", "MATCH", "SKIP"): +1933 text = "AFTER MATCH SKIP" +1934 if self._match_text_seq("PAST", "LAST", "ROW"): +1935 text += f" PAST LAST ROW" +1936 elif self._match_text_seq("TO", "NEXT", "ROW"): +1937 text += f" TO NEXT ROW" +1938 elif self._match_text_seq("TO", "FIRST"): +1939 text += f" TO FIRST {self._advance_any().text}" # type: ignore +1940 elif self._match_text_seq("TO", "LAST"): +1941 text += f" TO LAST {self._advance_any().text}" # type: ignore +1942 after = exp.Var(this=text) +1943 else: +1944 after = None +1945 +1946 if self._match_text_seq("PATTERN"): +1947 self._match_l_paren() +1948 +1949 if not self._curr: +1950 self.raise_error("Expecting )", self._curr) +1951 +1952 paren = 1 +1953 start = self._curr +1954 +1955 while self._curr and paren > 0: +1956 if self._curr.token_type == TokenType.L_PAREN: +1957 paren += 1 +1958 if self._curr.token_type == TokenType.R_PAREN: +1959 paren -= 1 +1960 end = self._prev +1961 self._advance() +1962 if paren > 0: +1963 self.raise_error("Expecting )", self._curr) +1964 pattern = exp.Var(this=self._find_sql(start, end)) +1965 else: +1966 pattern = None +1967 +1968 define = ( +1969 self._parse_alias(self._parse_conjunction()) if self._match_text_seq("DEFINE") else None +1970 ) +1971 self._match_r_paren() +1972 +1973 return self.expression( +1974 exp.MatchRecognize, +1975 partition_by=partition, +1976 order=order, +1977 measures=measures, +1978 rows=rows, +1979 after=after, +1980 pattern=pattern, +1981 define=define, +1982 ) +1983 +1984 def _parse_lateral(self) -> t.Optional[exp.Expression]: +1985 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) +1986 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) +1987 +1988 if outer_apply or cross_apply: +1989 this = self._parse_select(table=True) +1990 view = None +1991 outer = not cross_apply +1992 elif self._match(TokenType.LATERAL): +1993 this = self._parse_select(table=True) +1994 view = self._match(TokenType.VIEW) +1995 outer = self._match(TokenType.OUTER) +1996 else: +1997 return None +1998 +1999 if not this: +2000 this = self._parse_function() or self._parse_id_var(any_token=False) +2001 while self._match(TokenType.DOT): +2002 this = exp.Dot( +2003 this=this, +2004 expression=self._parse_function() or self._parse_id_var(any_token=False), +2005 ) +2006 +2007 table_alias: t.Optional[exp.Expression] 2008 -2009 expression = self.expression( -2010 exp.Lateral, -2011 this=this, -2012 view=view, -2013 outer=outer, -2014 alias=table_alias, -2015 ) -2016 -2017 if outer_apply or cross_apply: -2018 return self.expression(exp.Join, this=expression, side=None if cross_apply else "LEFT") -2019 -2020 return expression -2021 -2022 def _parse_join_side_and_kind( -2023 self, -2024 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: -2025 return ( -2026 self._match(TokenType.NATURAL) and self._prev, -2027 self._match_set(self.JOIN_SIDES) and self._prev, -2028 self._match_set(self.JOIN_KINDS) and self._prev, -2029 ) -2030 -2031 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: -2032 natural, side, kind = self._parse_join_side_and_kind() -2033 -2034 if not skip_join_token and not self._match(TokenType.JOIN): -2035 return None -2036 -2037 kwargs: t.Dict[ -2038 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] -2039 ] = {"this": self._parse_table()} +2009 if view: +2010 table = self._parse_id_var(any_token=False) +2011 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] +2012 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) +2013 else: +2014 table_alias = self._parse_table_alias() +2015 +2016 expression = self.expression( +2017 exp.Lateral, +2018 this=this, +2019 view=view, +2020 outer=outer, +2021 alias=table_alias, +2022 ) +2023 +2024 if outer_apply or cross_apply: +2025 return self.expression(exp.Join, this=expression, side=None if cross_apply else "LEFT") +2026 +2027 return expression +2028 +2029 def _parse_join_side_and_kind( +2030 self, +2031 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: +2032 return ( +2033 self._match(TokenType.NATURAL) and self._prev, +2034 self._match_set(self.JOIN_SIDES) and self._prev, +2035 self._match_set(self.JOIN_KINDS) and self._prev, +2036 ) +2037 +2038 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: +2039 natural, side, kind = self._parse_join_side_and_kind() 2040 -2041 if natural: -2042 kwargs["natural"] = True -2043 if side: -2044 kwargs["side"] = side.text -2045 if kind: -2046 kwargs["kind"] = kind.text +2041 if not skip_join_token and not self._match(TokenType.JOIN): +2042 return None +2043 +2044 kwargs: t.Dict[ +2045 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] +2046 ] = {"this": self._parse_table()} 2047 -2048 if self._match(TokenType.ON): -2049 kwargs["on"] = self._parse_conjunction() -2050 elif self._match(TokenType.USING): -2051 kwargs["using"] = self._parse_wrapped_id_vars() -2052 -2053 return self.expression(exp.Join, **kwargs) # type: ignore +2048 if natural: +2049 kwargs["natural"] = True +2050 if side: +2051 kwargs["side"] = side.text +2052 if kind: +2053 kwargs["kind"] = kind.text 2054 -2055 def _parse_index(self) -> exp.Expression: -2056 index = self._parse_id_var() -2057 self._match(TokenType.ON) -2058 self._match(TokenType.TABLE) # hive +2055 if self._match(TokenType.ON): +2056 kwargs["on"] = self._parse_conjunction() +2057 elif self._match(TokenType.USING): +2058 kwargs["using"] = self._parse_wrapped_id_vars() 2059 -2060 return self.expression( -2061 exp.Index, -2062 this=index, -2063 table=self.expression(exp.Table, this=self._parse_id_var()), -2064 columns=self._parse_expression(), -2065 ) +2060 return self.expression(exp.Join, **kwargs) # type: ignore +2061 +2062 def _parse_index(self) -> exp.Expression: +2063 index = self._parse_id_var() +2064 self._match(TokenType.ON) +2065 self._match(TokenType.TABLE) # hive 2066 -2067 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: -2068 unique = self._match(TokenType.UNIQUE) -2069 primary = self._match_text_seq("PRIMARY") -2070 amp = self._match_text_seq("AMP") -2071 if not self._match(TokenType.INDEX): -2072 return None -2073 index = self._parse_id_var() -2074 columns = None -2075 if self._match(TokenType.L_PAREN, advance=False): -2076 columns = self._parse_wrapped_csv(self._parse_column) -2077 return self.expression( -2078 exp.Index, -2079 this=index, -2080 columns=columns, -2081 unique=unique, -2082 primary=primary, -2083 amp=amp, -2084 ) -2085 -2086 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: -2087 catalog = None -2088 db = None -2089 -2090 table = ( -2091 (not schema and self._parse_function()) -2092 or self._parse_id_var(any_token=False) -2093 or self._parse_string_as_identifier() -2094 ) -2095 -2096 while self._match(TokenType.DOT): -2097 if catalog: -2098 # This allows nesting the table in arbitrarily many dot expressions if needed -2099 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) -2100 else: -2101 catalog = db -2102 db = table -2103 table = self._parse_id_var() -2104 -2105 if not table: -2106 self.raise_error(f"Expected table name but got {self._curr}") -2107 -2108 return self.expression( -2109 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() -2110 ) +2067 return self.expression( +2068 exp.Index, +2069 this=index, +2070 table=self.expression(exp.Table, this=self._parse_id_var()), +2071 columns=self._parse_expression(), +2072 ) +2073 +2074 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: +2075 unique = self._match(TokenType.UNIQUE) +2076 primary = self._match_text_seq("PRIMARY") +2077 amp = self._match_text_seq("AMP") +2078 if not self._match(TokenType.INDEX): +2079 return None +2080 index = self._parse_id_var() +2081 columns = None +2082 if self._match(TokenType.L_PAREN, advance=False): +2083 columns = self._parse_wrapped_csv(self._parse_column) +2084 return self.expression( +2085 exp.Index, +2086 this=index, +2087 columns=columns, +2088 unique=unique, +2089 primary=primary, +2090 amp=amp, +2091 ) +2092 +2093 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: +2094 catalog = None +2095 db = None +2096 +2097 table = ( +2098 (not schema and self._parse_function()) +2099 or self._parse_id_var(any_token=False) +2100 or self._parse_string_as_identifier() +2101 ) +2102 +2103 while self._match(TokenType.DOT): +2104 if catalog: +2105 # This allows nesting the table in arbitrarily many dot expressions if needed +2106 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) +2107 else: +2108 catalog = db +2109 db = table +2110 table = self._parse_id_var() 2111 -2112 def _parse_table( -2113 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None -2114 ) -> t.Optional[exp.Expression]: -2115 lateral = self._parse_lateral() -2116 -2117 if lateral: -2118 return lateral -2119 -2120 unnest = self._parse_unnest() -2121 -2122 if unnest: -2123 return unnest -2124 -2125 values = self._parse_derived_table_values() +2112 if not table: +2113 self.raise_error(f"Expected table name but got {self._curr}") +2114 +2115 return self.expression( +2116 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() +2117 ) +2118 +2119 def _parse_table( +2120 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None +2121 ) -> t.Optional[exp.Expression]: +2122 lateral = self._parse_lateral() +2123 +2124 if lateral: +2125 return lateral 2126 -2127 if values: -2128 return values -2129 -2130 subquery = self._parse_select(table=True) +2127 unnest = self._parse_unnest() +2128 +2129 if unnest: +2130 return unnest 2131 -2132 if subquery: -2133 if not subquery.args.get("pivots"): -2134 subquery.set("pivots", self._parse_pivots()) -2135 return subquery +2132 values = self._parse_derived_table_values() +2133 +2134 if values: +2135 return values 2136 -2137 this = self._parse_table_parts(schema=schema) +2137 subquery = self._parse_select(table=True) 2138 -2139 if schema: -2140 return self._parse_schema(this=this) -2141 -2142 if self.alias_post_tablesample: -2143 table_sample = self._parse_table_sample() -2144 -2145 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) -2146 -2147 if alias: -2148 this.set("alias", alias) -2149 -2150 if not this.args.get("pivots"): -2151 this.set("pivots", self._parse_pivots()) -2152 -2153 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): -2154 this.set( -2155 "hints", -2156 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), -2157 ) -2158 self._match_r_paren() +2139 if subquery: +2140 if not subquery.args.get("pivots"): +2141 subquery.set("pivots", self._parse_pivots()) +2142 return subquery +2143 +2144 this = self._parse_table_parts(schema=schema) +2145 +2146 if schema: +2147 return self._parse_schema(this=this) +2148 +2149 if self.alias_post_tablesample: +2150 table_sample = self._parse_table_sample() +2151 +2152 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) +2153 +2154 if alias: +2155 this.set("alias", alias) +2156 +2157 if not this.args.get("pivots"): +2158 this.set("pivots", self._parse_pivots()) 2159 -2160 if not self.alias_post_tablesample: -2161 table_sample = self._parse_table_sample() -2162 -2163 if table_sample: -2164 table_sample.set("this", this) -2165 this = table_sample +2160 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): +2161 this.set( +2162 "hints", +2163 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), +2164 ) +2165 self._match_r_paren() 2166 -2167 return this -2168 -2169 def _parse_unnest(self) -> t.Optional[exp.Expression]: -2170 if not self._match(TokenType.UNNEST): -2171 return None -2172 -2173 expressions = self._parse_wrapped_csv(self._parse_column) -2174 ordinality = bool(self._match(TokenType.WITH) and self._match(TokenType.ORDINALITY)) -2175 alias = self._parse_table_alias() -2176 -2177 if alias and self.unnest_column_only: -2178 if alias.args.get("columns"): -2179 self.raise_error("Unexpected extra column alias in unnest.") -2180 alias.set("columns", [alias.this]) -2181 alias.set("this", None) -2182 -2183 offset = None -2184 if self._match_pair(TokenType.WITH, TokenType.OFFSET): -2185 self._match(TokenType.ALIAS) -2186 offset = self._parse_conjunction() -2187 -2188 return self.expression( -2189 exp.Unnest, -2190 expressions=expressions, -2191 ordinality=ordinality, -2192 alias=alias, -2193 offset=offset, -2194 ) -2195 -2196 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: -2197 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) -2198 if not is_derived and not self._match(TokenType.VALUES): -2199 return None -2200 -2201 expressions = self._parse_csv(self._parse_value) +2167 if not self.alias_post_tablesample: +2168 table_sample = self._parse_table_sample() +2169 +2170 if table_sample: +2171 table_sample.set("this", this) +2172 this = table_sample +2173 +2174 return this +2175 +2176 def _parse_unnest(self) -> t.Optional[exp.Expression]: +2177 if not self._match(TokenType.UNNEST): +2178 return None +2179 +2180 expressions = self._parse_wrapped_csv(self._parse_column) +2181 ordinality = bool(self._match(TokenType.WITH) and self._match(TokenType.ORDINALITY)) +2182 alias = self._parse_table_alias() +2183 +2184 if alias and self.unnest_column_only: +2185 if alias.args.get("columns"): +2186 self.raise_error("Unexpected extra column alias in unnest.") +2187 alias.set("columns", [alias.this]) +2188 alias.set("this", None) +2189 +2190 offset = None +2191 if self._match_pair(TokenType.WITH, TokenType.OFFSET): +2192 self._match(TokenType.ALIAS) +2193 offset = self._parse_conjunction() +2194 +2195 return self.expression( +2196 exp.Unnest, +2197 expressions=expressions, +2198 ordinality=ordinality, +2199 alias=alias, +2200 offset=offset, +2201 ) 2202 -2203 if is_derived: -2204 self._match_r_paren() -2205 -2206 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) +2203 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: +2204 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) +2205 if not is_derived and not self._match(TokenType.VALUES): +2206 return None 2207 -2208 def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: -2209 if not self._match(TokenType.TABLE_SAMPLE) and not ( -2210 as_modifier and self._match_text_seq("USING", "SAMPLE") -2211 ): -2212 return None -2213 -2214 bucket_numerator = None -2215 bucket_denominator = None -2216 bucket_field = None -2217 percent = None -2218 rows = None -2219 size = None -2220 seed = None -2221 -2222 kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" -2223 method = self._parse_var(tokens=(TokenType.ROW,)) -2224 -2225 self._match(TokenType.L_PAREN) -2226 -2227 num = self._parse_number() +2208 expressions = self._parse_csv(self._parse_value) +2209 +2210 if is_derived: +2211 self._match_r_paren() +2212 +2213 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) +2214 +2215 def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: +2216 if not self._match(TokenType.TABLE_SAMPLE) and not ( +2217 as_modifier and self._match_text_seq("USING", "SAMPLE") +2218 ): +2219 return None +2220 +2221 bucket_numerator = None +2222 bucket_denominator = None +2223 bucket_field = None +2224 percent = None +2225 rows = None +2226 size = None +2227 seed = None 2228 -2229 if self._match(TokenType.BUCKET): -2230 bucket_numerator = self._parse_number() -2231 self._match(TokenType.OUT_OF) -2232 bucket_denominator = bucket_denominator = self._parse_number() -2233 self._match(TokenType.ON) -2234 bucket_field = self._parse_field() -2235 elif self._match_set((TokenType.PERCENT, TokenType.MOD)): -2236 percent = num -2237 elif self._match(TokenType.ROWS): -2238 rows = num -2239 else: -2240 size = num -2241 -2242 self._match(TokenType.R_PAREN) -2243 -2244 if self._match(TokenType.L_PAREN): -2245 method = self._parse_var() -2246 seed = self._match(TokenType.COMMA) and self._parse_number() -2247 self._match_r_paren() -2248 elif self._match_texts(("SEED", "REPEATABLE")): -2249 seed = self._parse_wrapped(self._parse_number) +2229 kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" +2230 method = self._parse_var(tokens=(TokenType.ROW,)) +2231 +2232 self._match(TokenType.L_PAREN) +2233 +2234 num = self._parse_number() +2235 +2236 if self._match(TokenType.BUCKET): +2237 bucket_numerator = self._parse_number() +2238 self._match(TokenType.OUT_OF) +2239 bucket_denominator = bucket_denominator = self._parse_number() +2240 self._match(TokenType.ON) +2241 bucket_field = self._parse_field() +2242 elif self._match_set((TokenType.PERCENT, TokenType.MOD)): +2243 percent = num +2244 elif self._match(TokenType.ROWS): +2245 rows = num +2246 else: +2247 size = num +2248 +2249 self._match(TokenType.R_PAREN) 2250 -2251 return self.expression( -2252 exp.TableSample, -2253 method=method, -2254 bucket_numerator=bucket_numerator, -2255 bucket_denominator=bucket_denominator, -2256 bucket_field=bucket_field, -2257 percent=percent, -2258 rows=rows, -2259 size=size, -2260 seed=seed, -2261 kind=kind, -2262 ) -2263 -2264 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: -2265 return list(iter(self._parse_pivot, None)) -2266 -2267 def _parse_pivot(self) -> t.Optional[exp.Expression]: -2268 index = self._index -2269 -2270 if self._match(TokenType.PIVOT): -2271 unpivot = False -2272 elif self._match(TokenType.UNPIVOT): -2273 unpivot = True -2274 else: -2275 return None +2251 if self._match(TokenType.L_PAREN): +2252 method = self._parse_var() +2253 seed = self._match(TokenType.COMMA) and self._parse_number() +2254 self._match_r_paren() +2255 elif self._match_texts(("SEED", "REPEATABLE")): +2256 seed = self._parse_wrapped(self._parse_number) +2257 +2258 return self.expression( +2259 exp.TableSample, +2260 method=method, +2261 bucket_numerator=bucket_numerator, +2262 bucket_denominator=bucket_denominator, +2263 bucket_field=bucket_field, +2264 percent=percent, +2265 rows=rows, +2266 size=size, +2267 seed=seed, +2268 kind=kind, +2269 ) +2270 +2271 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: +2272 return list(iter(self._parse_pivot, None)) +2273 +2274 def _parse_pivot(self) -> t.Optional[exp.Expression]: +2275 index = self._index 2276 -2277 expressions = [] -2278 field = None -2279 -2280 if not self._match(TokenType.L_PAREN): -2281 self._retreat(index) +2277 if self._match(TokenType.PIVOT): +2278 unpivot = False +2279 elif self._match(TokenType.UNPIVOT): +2280 unpivot = True +2281 else: 2282 return None 2283 -2284 if unpivot: -2285 expressions = self._parse_csv(self._parse_column) -2286 else: -2287 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) -2288 -2289 if not self._match(TokenType.FOR): -2290 self.raise_error("Expecting FOR") -2291 -2292 value = self._parse_column() -2293 -2294 if not self._match(TokenType.IN): -2295 self.raise_error("Expecting IN") -2296 -2297 field = self._parse_in(value) +2284 expressions = [] +2285 field = None +2286 +2287 if not self._match(TokenType.L_PAREN): +2288 self._retreat(index) +2289 return None +2290 +2291 if unpivot: +2292 expressions = self._parse_csv(self._parse_column) +2293 else: +2294 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) +2295 +2296 if not self._match(TokenType.FOR): +2297 self.raise_error("Expecting FOR") 2298 -2299 self._match_r_paren() +2299 value = self._parse_column() 2300 -2301 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) -2302 -2303 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): -2304 pivot.set("alias", self._parse_table_alias()) +2301 if not self._match(TokenType.IN): +2302 self.raise_error("Expecting IN") +2303 +2304 field = self._parse_in(value) 2305 -2306 return pivot +2306 self._match_r_paren() 2307 -2308 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: -2309 if not skip_where_token and not self._match(TokenType.WHERE): -2310 return None -2311 -2312 return self.expression( -2313 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() -2314 ) -2315 -2316 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: -2317 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): -2318 return None -2319 -2320 elements = defaultdict(list) -2321 -2322 while True: -2323 expressions = self._parse_csv(self._parse_conjunction) -2324 if expressions: -2325 elements["expressions"].extend(expressions) +2308 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) +2309 +2310 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): +2311 pivot.set("alias", self._parse_table_alias()) +2312 +2313 return pivot +2314 +2315 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: +2316 if not skip_where_token and not self._match(TokenType.WHERE): +2317 return None +2318 +2319 return self.expression( +2320 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() +2321 ) +2322 +2323 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: +2324 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): +2325 return None 2326 -2327 grouping_sets = self._parse_grouping_sets() -2328 if grouping_sets: -2329 elements["grouping_sets"].extend(grouping_sets) -2330 -2331 rollup = None -2332 cube = None +2327 elements = defaultdict(list) +2328 +2329 while True: +2330 expressions = self._parse_csv(self._parse_conjunction) +2331 if expressions: +2332 elements["expressions"].extend(expressions) 2333 -2334 with_ = self._match(TokenType.WITH) -2335 if self._match(TokenType.ROLLUP): -2336 rollup = with_ or self._parse_wrapped_csv(self._parse_column) -2337 elements["rollup"].extend(ensure_list(rollup)) -2338 -2339 if self._match(TokenType.CUBE): -2340 cube = with_ or self._parse_wrapped_csv(self._parse_column) -2341 elements["cube"].extend(ensure_list(cube)) -2342 -2343 if not (expressions or grouping_sets or rollup or cube): -2344 break +2334 grouping_sets = self._parse_grouping_sets() +2335 if grouping_sets: +2336 elements["grouping_sets"].extend(grouping_sets) +2337 +2338 rollup = None +2339 cube = None +2340 +2341 with_ = self._match(TokenType.WITH) +2342 if self._match(TokenType.ROLLUP): +2343 rollup = with_ or self._parse_wrapped_csv(self._parse_column) +2344 elements["rollup"].extend(ensure_list(rollup)) 2345 -2346 return self.expression(exp.Group, **elements) # type: ignore -2347 -2348 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -2349 if not self._match(TokenType.GROUPING_SETS): -2350 return None -2351 -2352 return self._parse_wrapped_csv(self._parse_grouping_set) -2353 -2354 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: -2355 if self._match(TokenType.L_PAREN): -2356 grouping_set = self._parse_csv(self._parse_column) -2357 self._match_r_paren() -2358 return self.expression(exp.Tuple, expressions=grouping_set) -2359 -2360 return self._parse_column() -2361 -2362 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: -2363 if not skip_having_token and not self._match(TokenType.HAVING): -2364 return None -2365 return self.expression(exp.Having, this=self._parse_conjunction()) +2346 if self._match(TokenType.CUBE): +2347 cube = with_ or self._parse_wrapped_csv(self._parse_column) +2348 elements["cube"].extend(ensure_list(cube)) +2349 +2350 if not (expressions or grouping_sets or rollup or cube): +2351 break +2352 +2353 return self.expression(exp.Group, **elements) # type: ignore +2354 +2355 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +2356 if not self._match(TokenType.GROUPING_SETS): +2357 return None +2358 +2359 return self._parse_wrapped_csv(self._parse_grouping_set) +2360 +2361 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: +2362 if self._match(TokenType.L_PAREN): +2363 grouping_set = self._parse_csv(self._parse_column) +2364 self._match_r_paren() +2365 return self.expression(exp.Tuple, expressions=grouping_set) 2366 -2367 def _parse_qualify(self) -> t.Optional[exp.Expression]: -2368 if not self._match(TokenType.QUALIFY): -2369 return None -2370 return self.expression(exp.Qualify, this=self._parse_conjunction()) -2371 -2372 def _parse_order( -2373 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False -2374 ) -> t.Optional[exp.Expression]: -2375 if not skip_order_token and not self._match(TokenType.ORDER_BY): -2376 return this -2377 -2378 return self.expression( -2379 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) -2380 ) -2381 -2382 def _parse_sort( -2383 self, token_type: TokenType, exp_class: t.Type[exp.Expression] -2384 ) -> t.Optional[exp.Expression]: -2385 if not self._match(token_type): -2386 return None -2387 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) +2367 return self._parse_column() +2368 +2369 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: +2370 if not skip_having_token and not self._match(TokenType.HAVING): +2371 return None +2372 return self.expression(exp.Having, this=self._parse_conjunction()) +2373 +2374 def _parse_qualify(self) -> t.Optional[exp.Expression]: +2375 if not self._match(TokenType.QUALIFY): +2376 return None +2377 return self.expression(exp.Qualify, this=self._parse_conjunction()) +2378 +2379 def _parse_order( +2380 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False +2381 ) -> t.Optional[exp.Expression]: +2382 if not skip_order_token and not self._match(TokenType.ORDER_BY): +2383 return this +2384 +2385 return self.expression( +2386 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) +2387 ) 2388 -2389 def _parse_ordered(self) -> exp.Expression: -2390 this = self._parse_conjunction() -2391 self._match(TokenType.ASC) -2392 is_desc = self._match(TokenType.DESC) -2393 is_nulls_first = self._match(TokenType.NULLS_FIRST) -2394 is_nulls_last = self._match(TokenType.NULLS_LAST) -2395 desc = is_desc or False -2396 asc = not desc -2397 nulls_first = is_nulls_first or False -2398 explicitly_null_ordered = is_nulls_first or is_nulls_last -2399 if ( -2400 not explicitly_null_ordered -2401 and ( -2402 (asc and self.null_ordering == "nulls_are_small") -2403 or (desc and self.null_ordering != "nulls_are_small") -2404 ) -2405 and self.null_ordering != "nulls_are_last" -2406 ): -2407 nulls_first = True -2408 -2409 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) -2410 -2411 def _parse_limit( -2412 self, this: t.Optional[exp.Expression] = None, top: bool = False -2413 ) -> t.Optional[exp.Expression]: -2414 if self._match(TokenType.TOP if top else TokenType.LIMIT): -2415 limit_paren = self._match(TokenType.L_PAREN) -2416 limit_exp = self.expression( -2417 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() -2418 ) -2419 -2420 if limit_paren: -2421 self._match_r_paren() -2422 -2423 return limit_exp -2424 -2425 if self._match(TokenType.FETCH): -2426 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) -2427 direction = self._prev.text if direction else "FIRST" -2428 count = self._parse_number() -2429 self._match_set((TokenType.ROW, TokenType.ROWS)) -2430 self._match(TokenType.ONLY) -2431 return self.expression(exp.Fetch, direction=direction, count=count) -2432 -2433 return this -2434 -2435 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: -2436 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): -2437 return this -2438 -2439 count = self._parse_number() -2440 self._match_set((TokenType.ROW, TokenType.ROWS)) -2441 return self.expression(exp.Offset, this=this, expression=count) -2442 -2443 def _parse_lock(self) -> t.Optional[exp.Expression]: -2444 if self._match_text_seq("FOR", "UPDATE"): -2445 return self.expression(exp.Lock, update=True) -2446 if self._match_text_seq("FOR", "SHARE"): -2447 return self.expression(exp.Lock, update=False) -2448 -2449 return None -2450 -2451 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2452 if not self._match_set(self.SET_OPERATIONS): -2453 return this -2454 -2455 token_type = self._prev.token_type -2456 -2457 if token_type == TokenType.UNION: -2458 expression = exp.Union -2459 elif token_type == TokenType.EXCEPT: -2460 expression = exp.Except -2461 else: -2462 expression = exp.Intersect +2389 def _parse_sort( +2390 self, token_type: TokenType, exp_class: t.Type[exp.Expression] +2391 ) -> t.Optional[exp.Expression]: +2392 if not self._match(token_type): +2393 return None +2394 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) +2395 +2396 def _parse_ordered(self) -> exp.Expression: +2397 this = self._parse_conjunction() +2398 self._match(TokenType.ASC) +2399 is_desc = self._match(TokenType.DESC) +2400 is_nulls_first = self._match(TokenType.NULLS_FIRST) +2401 is_nulls_last = self._match(TokenType.NULLS_LAST) +2402 desc = is_desc or False +2403 asc = not desc +2404 nulls_first = is_nulls_first or False +2405 explicitly_null_ordered = is_nulls_first or is_nulls_last +2406 if ( +2407 not explicitly_null_ordered +2408 and ( +2409 (asc and self.null_ordering == "nulls_are_small") +2410 or (desc and self.null_ordering != "nulls_are_small") +2411 ) +2412 and self.null_ordering != "nulls_are_last" +2413 ): +2414 nulls_first = True +2415 +2416 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) +2417 +2418 def _parse_limit( +2419 self, this: t.Optional[exp.Expression] = None, top: bool = False +2420 ) -> t.Optional[exp.Expression]: +2421 if self._match(TokenType.TOP if top else TokenType.LIMIT): +2422 limit_paren = self._match(TokenType.L_PAREN) +2423 limit_exp = self.expression( +2424 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() +2425 ) +2426 +2427 if limit_paren: +2428 self._match_r_paren() +2429 +2430 return limit_exp +2431 +2432 if self._match(TokenType.FETCH): +2433 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) +2434 direction = self._prev.text if direction else "FIRST" +2435 count = self._parse_number() +2436 self._match_set((TokenType.ROW, TokenType.ROWS)) +2437 self._match(TokenType.ONLY) +2438 return self.expression(exp.Fetch, direction=direction, count=count) +2439 +2440 return this +2441 +2442 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +2443 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): +2444 return this +2445 +2446 count = self._parse_number() +2447 self._match_set((TokenType.ROW, TokenType.ROWS)) +2448 return self.expression(exp.Offset, this=this, expression=count) +2449 +2450 def _parse_lock(self) -> t.Optional[exp.Expression]: +2451 if self._match_text_seq("FOR", "UPDATE"): +2452 return self.expression(exp.Lock, update=True) +2453 if self._match_text_seq("FOR", "SHARE"): +2454 return self.expression(exp.Lock, update=False) +2455 +2456 return None +2457 +2458 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2459 if not self._match_set(self.SET_OPERATIONS): +2460 return this +2461 +2462 token_type = self._prev.token_type 2463 -2464 return self.expression( -2465 expression, -2466 this=this, -2467 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), -2468 expression=self._parse_set_operations(self._parse_select(nested=True)), -2469 ) +2464 if token_type == TokenType.UNION: +2465 expression = exp.Union +2466 elif token_type == TokenType.EXCEPT: +2467 expression = exp.Except +2468 else: +2469 expression = exp.Intersect 2470 -2471 def _parse_expression(self) -> t.Optional[exp.Expression]: -2472 return self._parse_alias(self._parse_conjunction()) -2473 -2474 def _parse_conjunction(self) -> t.Optional[exp.Expression]: -2475 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) -2476 -2477 def _parse_equality(self) -> t.Optional[exp.Expression]: -2478 return self._parse_tokens(self._parse_comparison, self.EQUALITY) -2479 -2480 def _parse_comparison(self) -> t.Optional[exp.Expression]: -2481 return self._parse_tokens(self._parse_range, self.COMPARISON) -2482 -2483 def _parse_range(self) -> t.Optional[exp.Expression]: -2484 this = self._parse_bitwise() -2485 negate = self._match(TokenType.NOT) +2471 return self.expression( +2472 expression, +2473 this=this, +2474 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), +2475 expression=self._parse_set_operations(self._parse_select(nested=True)), +2476 ) +2477 +2478 def _parse_expression(self) -> t.Optional[exp.Expression]: +2479 return self._parse_alias(self._parse_conjunction()) +2480 +2481 def _parse_conjunction(self) -> t.Optional[exp.Expression]: +2482 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) +2483 +2484 def _parse_equality(self) -> t.Optional[exp.Expression]: +2485 return self._parse_tokens(self._parse_comparison, self.EQUALITY) 2486 -2487 if self._match_set(self.RANGE_PARSERS): -2488 this = self.RANGE_PARSERS[self._prev.token_type](self, this) -2489 elif self._match(TokenType.ISNULL): -2490 this = self.expression(exp.Is, this=this, expression=exp.Null()) -2491 -2492 # Postgres supports ISNULL and NOTNULL for conditions. -2493 # https://blog.andreiavram.ro/postgresql-null-composite-type/ -2494 if self._match(TokenType.NOTNULL): -2495 this = self.expression(exp.Is, this=this, expression=exp.Null()) -2496 this = self.expression(exp.Not, this=this) -2497 -2498 if negate: -2499 this = self.expression(exp.Not, this=this) -2500 -2501 if self._match(TokenType.IS): -2502 this = self._parse_is(this) -2503 -2504 return this -2505 -2506 def _parse_is(self, this: t.Optional[exp.Expression]) -> exp.Expression: -2507 negate = self._match(TokenType.NOT) -2508 if self._match(TokenType.DISTINCT_FROM): -2509 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ -2510 return self.expression(klass, this=this, expression=self._parse_expression()) -2511 -2512 this = self.expression( -2513 exp.Is, -2514 this=this, -2515 expression=self._parse_null() or self._parse_boolean(), -2516 ) -2517 return self.expression(exp.Not, this=this) if negate else this +2487 def _parse_comparison(self) -> t.Optional[exp.Expression]: +2488 return self._parse_tokens(self._parse_range, self.COMPARISON) +2489 +2490 def _parse_range(self) -> t.Optional[exp.Expression]: +2491 this = self._parse_bitwise() +2492 negate = self._match(TokenType.NOT) +2493 +2494 if self._match_set(self.RANGE_PARSERS): +2495 this = self.RANGE_PARSERS[self._prev.token_type](self, this) +2496 elif self._match(TokenType.ISNULL): +2497 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2498 +2499 # Postgres supports ISNULL and NOTNULL for conditions. +2500 # https://blog.andreiavram.ro/postgresql-null-composite-type/ +2501 if self._match(TokenType.NOTNULL): +2502 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2503 this = self.expression(exp.Not, this=this) +2504 +2505 if negate: +2506 this = self.expression(exp.Not, this=this) +2507 +2508 if self._match(TokenType.IS): +2509 this = self._parse_is(this) +2510 +2511 return this +2512 +2513 def _parse_is(self, this: t.Optional[exp.Expression]) -> exp.Expression: +2514 negate = self._match(TokenType.NOT) +2515 if self._match(TokenType.DISTINCT_FROM): +2516 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ +2517 return self.expression(klass, this=this, expression=self._parse_expression()) 2518 -2519 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: -2520 unnest = self._parse_unnest() -2521 if unnest: -2522 this = self.expression(exp.In, this=this, unnest=unnest) -2523 elif self._match(TokenType.L_PAREN): -2524 expressions = self._parse_csv(self._parse_select_or_expression) +2519 this = self.expression( +2520 exp.Is, +2521 this=this, +2522 expression=self._parse_null() or self._parse_boolean(), +2523 ) +2524 return self.expression(exp.Not, this=this) if negate else this 2525 -2526 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): -2527 this = self.expression(exp.In, this=this, query=expressions[0]) -2528 else: -2529 this = self.expression(exp.In, this=this, expressions=expressions) -2530 -2531 self._match_r_paren() -2532 else: -2533 this = self.expression(exp.In, this=this, field=self._parse_field()) -2534 -2535 return this -2536 -2537 def _parse_between(self, this: exp.Expression) -> exp.Expression: -2538 low = self._parse_bitwise() -2539 self._match(TokenType.AND) -2540 high = self._parse_bitwise() -2541 return self.expression(exp.Between, this=this, low=low, high=high) -2542 -2543 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2544 if not self._match(TokenType.ESCAPE): -2545 return this -2546 return self.expression(exp.Escape, this=this, expression=self._parse_string()) -2547 -2548 def _parse_bitwise(self) -> t.Optional[exp.Expression]: -2549 this = self._parse_term() -2550 -2551 while True: -2552 if self._match_set(self.BITWISE): -2553 this = self.expression( -2554 self.BITWISE[self._prev.token_type], -2555 this=this, -2556 expression=self._parse_term(), -2557 ) -2558 elif self._match_pair(TokenType.LT, TokenType.LT): -2559 this = self.expression( -2560 exp.BitwiseLeftShift, this=this, expression=self._parse_term() -2561 ) -2562 elif self._match_pair(TokenType.GT, TokenType.GT): -2563 this = self.expression( -2564 exp.BitwiseRightShift, this=this, expression=self._parse_term() -2565 ) -2566 else: -2567 break -2568 -2569 return this -2570 -2571 def _parse_term(self) -> t.Optional[exp.Expression]: -2572 return self._parse_tokens(self._parse_factor, self.TERM) -2573 -2574 def _parse_factor(self) -> t.Optional[exp.Expression]: -2575 return self._parse_tokens(self._parse_unary, self.FACTOR) -2576 -2577 def _parse_unary(self) -> t.Optional[exp.Expression]: -2578 if self._match_set(self.UNARY_PARSERS): -2579 return self.UNARY_PARSERS[self._prev.token_type](self) -2580 return self._parse_at_time_zone(self._parse_type()) -2581 -2582 def _parse_type(self) -> t.Optional[exp.Expression]: -2583 if self._match(TokenType.INTERVAL): -2584 return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_field()) -2585 -2586 index = self._index -2587 type_token = self._parse_types(check_func=True) -2588 this = self._parse_column() -2589 -2590 if type_token: -2591 if isinstance(this, exp.Literal): -2592 return self.expression(exp.Cast, this=this, to=type_token) -2593 if not type_token.args.get("expressions"): -2594 self._retreat(index) -2595 return self._parse_column() -2596 return type_token -2597 -2598 return this -2599 -2600 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: -2601 index = self._index -2602 -2603 prefix = self._match_text_seq("SYSUDTLIB", ".") +2526 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: +2527 unnest = self._parse_unnest() +2528 if unnest: +2529 this = self.expression(exp.In, this=this, unnest=unnest) +2530 elif self._match(TokenType.L_PAREN): +2531 expressions = self._parse_csv(self._parse_select_or_expression) +2532 +2533 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): +2534 this = self.expression(exp.In, this=this, query=expressions[0]) +2535 else: +2536 this = self.expression(exp.In, this=this, expressions=expressions) +2537 +2538 self._match_r_paren() +2539 else: +2540 this = self.expression(exp.In, this=this, field=self._parse_field()) +2541 +2542 return this +2543 +2544 def _parse_between(self, this: exp.Expression) -> exp.Expression: +2545 low = self._parse_bitwise() +2546 self._match(TokenType.AND) +2547 high = self._parse_bitwise() +2548 return self.expression(exp.Between, this=this, low=low, high=high) +2549 +2550 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2551 if not self._match(TokenType.ESCAPE): +2552 return this +2553 return self.expression(exp.Escape, this=this, expression=self._parse_string()) +2554 +2555 def _parse_bitwise(self) -> t.Optional[exp.Expression]: +2556 this = self._parse_term() +2557 +2558 while True: +2559 if self._match_set(self.BITWISE): +2560 this = self.expression( +2561 self.BITWISE[self._prev.token_type], +2562 this=this, +2563 expression=self._parse_term(), +2564 ) +2565 elif self._match_pair(TokenType.LT, TokenType.LT): +2566 this = self.expression( +2567 exp.BitwiseLeftShift, this=this, expression=self._parse_term() +2568 ) +2569 elif self._match_pair(TokenType.GT, TokenType.GT): +2570 this = self.expression( +2571 exp.BitwiseRightShift, this=this, expression=self._parse_term() +2572 ) +2573 else: +2574 break +2575 +2576 return this +2577 +2578 def _parse_term(self) -> t.Optional[exp.Expression]: +2579 return self._parse_tokens(self._parse_factor, self.TERM) +2580 +2581 def _parse_factor(self) -> t.Optional[exp.Expression]: +2582 return self._parse_tokens(self._parse_unary, self.FACTOR) +2583 +2584 def _parse_unary(self) -> t.Optional[exp.Expression]: +2585 if self._match_set(self.UNARY_PARSERS): +2586 return self.UNARY_PARSERS[self._prev.token_type](self) +2587 return self._parse_at_time_zone(self._parse_type()) +2588 +2589 def _parse_type(self) -> t.Optional[exp.Expression]: +2590 if self._match(TokenType.INTERVAL): +2591 return self.expression(exp.Interval, this=self._parse_term(), unit=self._parse_field()) +2592 +2593 index = self._index +2594 type_token = self._parse_types(check_func=True) +2595 this = self._parse_column() +2596 +2597 if type_token: +2598 if isinstance(this, exp.Literal): +2599 return self.expression(exp.Cast, this=this, to=type_token) +2600 if not type_token.args.get("expressions"): +2601 self._retreat(index) +2602 return self._parse_column() +2603 return type_token 2604 -2605 if not self._match_set(self.TYPE_TOKENS): -2606 return None -2607 -2608 type_token = self._prev.token_type +2605 return this +2606 +2607 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: +2608 index = self._index 2609 -2610 if type_token == TokenType.PSEUDO_TYPE: -2611 return self.expression(exp.PseudoType, this=self._prev.text) -2612 -2613 nested = type_token in self.NESTED_TYPE_TOKENS -2614 is_struct = type_token == TokenType.STRUCT -2615 expressions = None -2616 maybe_func = False -2617 -2618 if self._match(TokenType.L_PAREN): -2619 if is_struct: -2620 expressions = self._parse_csv(self._parse_struct_kwargs) -2621 elif nested: -2622 expressions = self._parse_csv(self._parse_types) -2623 else: -2624 expressions = self._parse_csv(self._parse_conjunction) -2625 -2626 if not expressions: -2627 self._retreat(index) -2628 return None -2629 -2630 self._match_r_paren() -2631 maybe_func = True +2610 prefix = self._match_text_seq("SYSUDTLIB", ".") +2611 +2612 if not self._match_set(self.TYPE_TOKENS): +2613 return None +2614 +2615 type_token = self._prev.token_type +2616 +2617 if type_token == TokenType.PSEUDO_TYPE: +2618 return self.expression(exp.PseudoType, this=self._prev.text) +2619 +2620 nested = type_token in self.NESTED_TYPE_TOKENS +2621 is_struct = type_token == TokenType.STRUCT +2622 expressions = None +2623 maybe_func = False +2624 +2625 if self._match(TokenType.L_PAREN): +2626 if is_struct: +2627 expressions = self._parse_csv(self._parse_struct_kwargs) +2628 elif nested: +2629 expressions = self._parse_csv(self._parse_types) +2630 else: +2631 expressions = self._parse_csv(self._parse_conjunction) 2632 -2633 if not nested and self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): -2634 this = exp.DataType( -2635 this=exp.DataType.Type.ARRAY, -2636 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], -2637 nested=True, -2638 ) +2633 if not expressions: +2634 self._retreat(index) +2635 return None +2636 +2637 self._match_r_paren() +2638 maybe_func = True 2639 -2640 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): -2641 this = exp.DataType( -2642 this=exp.DataType.Type.ARRAY, -2643 expressions=[this], -2644 nested=True, -2645 ) +2640 if self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2641 this = exp.DataType( +2642 this=exp.DataType.Type.ARRAY, +2643 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], +2644 nested=True, +2645 ) 2646 -2647 return this -2648 -2649 if self._match(TokenType.L_BRACKET): -2650 self._retreat(index) -2651 return None -2652 -2653 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None -2654 if nested and self._match(TokenType.LT): -2655 if is_struct: -2656 expressions = self._parse_csv(self._parse_struct_kwargs) -2657 else: -2658 expressions = self._parse_csv(self._parse_types) +2647 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2648 this = exp.DataType( +2649 this=exp.DataType.Type.ARRAY, +2650 expressions=[this], +2651 nested=True, +2652 ) +2653 +2654 return this +2655 +2656 if self._match(TokenType.L_BRACKET): +2657 self._retreat(index) +2658 return None 2659 -2660 if not self._match(TokenType.GT): -2661 self.raise_error("Expecting >") -2662 -2663 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): -2664 values = self._parse_csv(self._parse_conjunction) -2665 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) +2660 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None +2661 if nested and self._match(TokenType.LT): +2662 if is_struct: +2663 expressions = self._parse_csv(self._parse_struct_kwargs) +2664 else: +2665 expressions = self._parse_csv(self._parse_types) 2666 -2667 value: t.Optional[exp.Expression] = None -2668 if type_token in self.TIMESTAMPS: -2669 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: -2670 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) -2671 elif ( -2672 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ -2673 ): -2674 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) -2675 elif self._match(TokenType.WITHOUT_TIME_ZONE): -2676 if type_token == TokenType.TIME: -2677 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) -2678 else: -2679 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) -2680 -2681 maybe_func = maybe_func and value is None -2682 -2683 if value is None: -2684 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) -2685 elif type_token == TokenType.INTERVAL: -2686 unit = self._parse_var() +2667 if not self._match(TokenType.GT): +2668 self.raise_error("Expecting >") +2669 +2670 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): +2671 values = self._parse_csv(self._parse_conjunction) +2672 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) +2673 +2674 value: t.Optional[exp.Expression] = None +2675 if type_token in self.TIMESTAMPS: +2676 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: +2677 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) +2678 elif ( +2679 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ +2680 ): +2681 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) +2682 elif self._match(TokenType.WITHOUT_TIME_ZONE): +2683 if type_token == TokenType.TIME: +2684 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) +2685 else: +2686 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) 2687 -2688 if not unit: -2689 value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) -2690 else: -2691 value = self.expression(exp.Interval, unit=unit) -2692 -2693 if maybe_func and check_func: -2694 index2 = self._index -2695 peek = self._parse_string() -2696 -2697 if not peek: -2698 self._retreat(index) -2699 return None -2700 -2701 self._retreat(index2) -2702 -2703 if value: -2704 return value -2705 -2706 return exp.DataType( -2707 this=exp.DataType.Type[type_token.value.upper()], -2708 expressions=expressions, -2709 nested=nested, -2710 values=values, -2711 prefix=prefix, -2712 ) -2713 -2714 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: -2715 if self._curr and self._curr.token_type in self.TYPE_TOKENS: -2716 return self._parse_types() -2717 -2718 this = self._parse_id_var() -2719 self._match(TokenType.COLON) -2720 data_type = self._parse_types() -2721 -2722 if not data_type: -2723 return None -2724 return self.expression(exp.StructKwarg, this=this, expression=data_type) -2725 -2726 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2727 if not self._match(TokenType.AT_TIME_ZONE): -2728 return this -2729 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) -2730 -2731 def _parse_column(self) -> t.Optional[exp.Expression]: -2732 this = self._parse_field() -2733 if isinstance(this, exp.Identifier): -2734 this = self.expression(exp.Column, this=this) -2735 elif not this: -2736 return self._parse_bracket(this) -2737 this = self._parse_bracket(this) -2738 -2739 while self._match_set(self.COLUMN_OPERATORS): -2740 op_token = self._prev.token_type -2741 op = self.COLUMN_OPERATORS.get(op_token) -2742 -2743 if op_token == TokenType.DCOLON: -2744 field = self._parse_types() -2745 if not field: -2746 self.raise_error("Expected type") -2747 elif op: -2748 self._advance() -2749 value = self._prev.text -2750 field = ( -2751 exp.Literal.number(value) -2752 if self._prev.token_type == TokenType.NUMBER -2753 else exp.Literal.string(value) -2754 ) -2755 else: -2756 field = self._parse_star() or self._parse_function() or self._parse_id_var() -2757 -2758 if isinstance(field, exp.Func): -2759 # bigquery allows function calls like x.y.count(...) -2760 # SAFE.SUBSTR(...) -2761 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules -2762 this = self._replace_columns_with_dots(this) -2763 -2764 if op: -2765 this = op(self, this, field) -2766 elif isinstance(this, exp.Column) and not this.args.get("catalog"): -2767 this = self.expression( -2768 exp.Column, -2769 this=field, -2770 table=this.this, -2771 db=this.args.get("table"), -2772 catalog=this.args.get("db"), -2773 ) -2774 else: -2775 this = self.expression(exp.Dot, this=this, expression=field) -2776 this = self._parse_bracket(this) -2777 -2778 return this -2779 -2780 def _parse_primary(self) -> t.Optional[exp.Expression]: -2781 if self._match_set(self.PRIMARY_PARSERS): -2782 token_type = self._prev.token_type -2783 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) +2688 maybe_func = maybe_func and value is None +2689 +2690 if value is None: +2691 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) +2692 elif type_token == TokenType.INTERVAL: +2693 unit = self._parse_var() +2694 +2695 if not unit: +2696 value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) +2697 else: +2698 value = self.expression(exp.Interval, unit=unit) +2699 +2700 if maybe_func and check_func: +2701 index2 = self._index +2702 peek = self._parse_string() +2703 +2704 if not peek: +2705 self._retreat(index) +2706 return None +2707 +2708 self._retreat(index2) +2709 +2710 if value: +2711 return value +2712 +2713 return exp.DataType( +2714 this=exp.DataType.Type[type_token.value.upper()], +2715 expressions=expressions, +2716 nested=nested, +2717 values=values, +2718 prefix=prefix, +2719 ) +2720 +2721 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: +2722 if self._curr and self._curr.token_type in self.TYPE_TOKENS: +2723 return self._parse_types() +2724 +2725 this = self._parse_id_var() +2726 self._match(TokenType.COLON) +2727 data_type = self._parse_types() +2728 +2729 if not data_type: +2730 return None +2731 return self.expression(exp.StructKwarg, this=this, expression=data_type) +2732 +2733 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2734 if not self._match(TokenType.AT_TIME_ZONE): +2735 return this +2736 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) +2737 +2738 def _parse_column(self) -> t.Optional[exp.Expression]: +2739 this = self._parse_field() +2740 if isinstance(this, exp.Identifier): +2741 this = self.expression(exp.Column, this=this) +2742 elif not this: +2743 return self._parse_bracket(this) +2744 this = self._parse_bracket(this) +2745 +2746 while self._match_set(self.COLUMN_OPERATORS): +2747 op_token = self._prev.token_type +2748 op = self.COLUMN_OPERATORS.get(op_token) +2749 +2750 if op_token == TokenType.DCOLON: +2751 field = self._parse_types() +2752 if not field: +2753 self.raise_error("Expected type") +2754 elif op: +2755 self._advance() +2756 value = self._prev.text +2757 field = ( +2758 exp.Literal.number(value) +2759 if self._prev.token_type == TokenType.NUMBER +2760 else exp.Literal.string(value) +2761 ) +2762 else: +2763 field = self._parse_star() or self._parse_function() or self._parse_id_var() +2764 +2765 if isinstance(field, exp.Func): +2766 # bigquery allows function calls like x.y.count(...) +2767 # SAFE.SUBSTR(...) +2768 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules +2769 this = self._replace_columns_with_dots(this) +2770 +2771 if op: +2772 this = op(self, this, field) +2773 elif isinstance(this, exp.Column) and not this.args.get("catalog"): +2774 this = self.expression( +2775 exp.Column, +2776 this=field, +2777 table=this.this, +2778 db=this.args.get("table"), +2779 catalog=this.args.get("db"), +2780 ) +2781 else: +2782 this = self.expression(exp.Dot, this=this, expression=field) +2783 this = self._parse_bracket(this) 2784 -2785 if token_type == TokenType.STRING: -2786 expressions = [primary] -2787 while self._match(TokenType.STRING): -2788 expressions.append(exp.Literal.string(self._prev.text)) -2789 if len(expressions) > 1: -2790 return self.expression(exp.Concat, expressions=expressions) -2791 return primary -2792 -2793 if self._match_pair(TokenType.DOT, TokenType.NUMBER): -2794 return exp.Literal.number(f"0.{self._prev.text}") -2795 -2796 if self._match(TokenType.L_PAREN): -2797 comments = self._prev_comments -2798 query = self._parse_select() +2785 return this +2786 +2787 def _parse_primary(self) -> t.Optional[exp.Expression]: +2788 if self._match_set(self.PRIMARY_PARSERS): +2789 token_type = self._prev.token_type +2790 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) +2791 +2792 if token_type == TokenType.STRING: +2793 expressions = [primary] +2794 while self._match(TokenType.STRING): +2795 expressions.append(exp.Literal.string(self._prev.text)) +2796 if len(expressions) > 1: +2797 return self.expression(exp.Concat, expressions=expressions) +2798 return primary 2799 -2800 if query: -2801 expressions = [query] -2802 else: -2803 expressions = self._parse_csv( -2804 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) -2805 ) +2800 if self._match_pair(TokenType.DOT, TokenType.NUMBER): +2801 return exp.Literal.number(f"0.{self._prev.text}") +2802 +2803 if self._match(TokenType.L_PAREN): +2804 comments = self._prev_comments +2805 query = self._parse_select() 2806 -2807 this = seq_get(expressions, 0) -2808 self._parse_query_modifiers(this) -2809 -2810 if isinstance(this, exp.Subqueryable): -2811 this = self._parse_set_operations( -2812 self._parse_subquery(this=this, parse_alias=False) -2813 ) -2814 elif len(expressions) > 1: -2815 this = self.expression(exp.Tuple, expressions=expressions) -2816 else: -2817 this = self.expression(exp.Paren, this=self._parse_set_operations(this)) -2818 -2819 self._match_r_paren() -2820 -2821 if this and comments: -2822 this.comments = comments -2823 -2824 return this +2807 if query: +2808 expressions = [query] +2809 else: +2810 expressions = self._parse_csv( +2811 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) +2812 ) +2813 +2814 this = seq_get(expressions, 0) +2815 self._parse_query_modifiers(this) +2816 +2817 if isinstance(this, exp.Subqueryable): +2818 this = self._parse_set_operations( +2819 self._parse_subquery(this=this, parse_alias=False) +2820 ) +2821 elif len(expressions) > 1: +2822 this = self.expression(exp.Tuple, expressions=expressions) +2823 else: +2824 this = self.expression(exp.Paren, this=self._parse_set_operations(this)) 2825 -2826 return None +2826 self._match_r_paren() 2827 -2828 def _parse_field(self, any_token: bool = False) -> t.Optional[exp.Expression]: -2829 return self._parse_primary() or self._parse_function() or self._parse_id_var(any_token) +2828 if this and comments: +2829 this.comments = comments 2830 -2831 def _parse_function( -2832 self, functions: t.Optional[t.Dict[str, t.Callable]] = None -2833 ) -> t.Optional[exp.Expression]: -2834 if not self._curr: -2835 return None -2836 -2837 token_type = self._curr.token_type -2838 -2839 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): -2840 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) -2841 -2842 if not self._next or self._next.token_type != TokenType.L_PAREN: -2843 if token_type in self.NO_PAREN_FUNCTIONS: -2844 self._advance() -2845 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) -2846 -2847 return None +2831 return this +2832 +2833 return None +2834 +2835 def _parse_field(self, any_token: bool = False) -> t.Optional[exp.Expression]: +2836 return self._parse_primary() or self._parse_function() or self._parse_id_var(any_token) +2837 +2838 def _parse_function( +2839 self, functions: t.Optional[t.Dict[str, t.Callable]] = None +2840 ) -> t.Optional[exp.Expression]: +2841 if not self._curr: +2842 return None +2843 +2844 token_type = self._curr.token_type +2845 +2846 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): +2847 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) 2848 -2849 if token_type not in self.FUNC_TOKENS: -2850 return None -2851 -2852 this = self._curr.text -2853 upper = this.upper() -2854 self._advance(2) +2849 if not self._next or self._next.token_type != TokenType.L_PAREN: +2850 if token_type in self.NO_PAREN_FUNCTIONS: +2851 self._advance() +2852 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) +2853 +2854 return None 2855 -2856 parser = self.FUNCTION_PARSERS.get(upper) -2857 -2858 if parser: -2859 this = parser(self) -2860 else: -2861 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) +2856 if token_type not in self.FUNC_TOKENS: +2857 return None +2858 +2859 this = self._curr.text +2860 upper = this.upper() +2861 self._advance(2) 2862 -2863 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): -2864 this = self.expression(subquery_predicate, this=self._parse_select()) -2865 self._match_r_paren() -2866 return this -2867 -2868 if functions is None: -2869 functions = self.FUNCTIONS -2870 -2871 function = functions.get(upper) -2872 args = self._parse_csv(self._parse_lambda) -2873 -2874 if function: -2875 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the -2876 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. -2877 if count_params(function) == 2: -2878 params = None -2879 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): -2880 params = self._parse_csv(self._parse_lambda) -2881 -2882 this = function(args, params) -2883 else: -2884 this = function(args) -2885 -2886 self.validate_expression(this, args) -2887 else: -2888 this = self.expression(exp.Anonymous, this=this, expressions=args) -2889 -2890 self._match_r_paren(this) -2891 return self._parse_window(this) +2863 parser = self.FUNCTION_PARSERS.get(upper) +2864 +2865 if parser: +2866 this = parser(self) +2867 else: +2868 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) +2869 +2870 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): +2871 this = self.expression(subquery_predicate, this=self._parse_select()) +2872 self._match_r_paren() +2873 return this +2874 +2875 if functions is None: +2876 functions = self.FUNCTIONS +2877 +2878 function = functions.get(upper) +2879 args = self._parse_csv(self._parse_lambda) +2880 +2881 if function: +2882 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the +2883 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. +2884 if count_params(function) == 2: +2885 params = None +2886 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): +2887 params = self._parse_csv(self._parse_lambda) +2888 +2889 this = function(args, params) +2890 else: +2891 this = function(args) 2892 -2893 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: -2894 return self._parse_column_def(self._parse_id_var()) -2895 -2896 def _parse_user_defined_function( -2897 self, kind: t.Optional[TokenType] = None -2898 ) -> t.Optional[exp.Expression]: -2899 this = self._parse_id_var() -2900 -2901 while self._match(TokenType.DOT): -2902 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) -2903 -2904 if not self._match(TokenType.L_PAREN): -2905 return this -2906 -2907 expressions = self._parse_csv(self._parse_function_parameter) -2908 self._match_r_paren() -2909 return self.expression( -2910 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True -2911 ) -2912 -2913 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: -2914 literal = self._parse_primary() -2915 if literal: -2916 return self.expression(exp.Introducer, this=token.text, expression=literal) -2917 -2918 return self.expression(exp.Identifier, this=token.text) +2893 self.validate_expression(this, args) +2894 else: +2895 this = self.expression(exp.Anonymous, this=this, expressions=args) +2896 +2897 self._match_r_paren(this) +2898 return self._parse_window(this) +2899 +2900 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: +2901 return self._parse_column_def(self._parse_id_var()) +2902 +2903 def _parse_user_defined_function( +2904 self, kind: t.Optional[TokenType] = None +2905 ) -> t.Optional[exp.Expression]: +2906 this = self._parse_id_var() +2907 +2908 while self._match(TokenType.DOT): +2909 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) +2910 +2911 if not self._match(TokenType.L_PAREN): +2912 return this +2913 +2914 expressions = self._parse_csv(self._parse_function_parameter) +2915 self._match_r_paren() +2916 return self.expression( +2917 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True +2918 ) 2919 -2920 def _parse_national(self, token: Token) -> exp.Expression: -2921 return self.expression(exp.National, this=exp.Literal.string(token.text)) -2922 -2923 def _parse_session_parameter(self) -> exp.Expression: -2924 kind = None -2925 this = self._parse_id_var() or self._parse_primary() +2920 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: +2921 literal = self._parse_primary() +2922 if literal: +2923 return self.expression(exp.Introducer, this=token.text, expression=literal) +2924 +2925 return self.expression(exp.Identifier, this=token.text) 2926 -2927 if this and self._match(TokenType.DOT): -2928 kind = this.name -2929 this = self._parse_var() or self._parse_primary() -2930 -2931 return self.expression(exp.SessionParameter, this=this, kind=kind) -2932 -2933 def _parse_lambda(self) -> t.Optional[exp.Expression]: -2934 index = self._index -2935 -2936 if self._match(TokenType.L_PAREN): -2937 expressions = self._parse_csv(self._parse_id_var) -2938 -2939 if not self._match(TokenType.R_PAREN): -2940 self._retreat(index) -2941 else: -2942 expressions = [self._parse_id_var()] -2943 -2944 if self._match_set(self.LAMBDAS): -2945 return self.LAMBDAS[self._prev.token_type](self, expressions) -2946 -2947 self._retreat(index) -2948 -2949 this: t.Optional[exp.Expression] +2927 def _parse_national(self, token: Token) -> exp.Expression: +2928 return self.expression(exp.National, this=exp.Literal.string(token.text)) +2929 +2930 def _parse_session_parameter(self) -> exp.Expression: +2931 kind = None +2932 this = self._parse_id_var() or self._parse_primary() +2933 +2934 if this and self._match(TokenType.DOT): +2935 kind = this.name +2936 this = self._parse_var() or self._parse_primary() +2937 +2938 return self.expression(exp.SessionParameter, this=this, kind=kind) +2939 +2940 def _parse_lambda(self) -> t.Optional[exp.Expression]: +2941 index = self._index +2942 +2943 if self._match(TokenType.L_PAREN): +2944 expressions = self._parse_csv(self._parse_id_var) +2945 +2946 if not self._match(TokenType.R_PAREN): +2947 self._retreat(index) +2948 else: +2949 expressions = [self._parse_id_var()] 2950 -2951 if self._match(TokenType.DISTINCT): -2952 this = self.expression( -2953 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) -2954 ) -2955 else: -2956 this = self._parse_select_or_expression() +2951 if self._match_set(self.LAMBDAS): +2952 return self.LAMBDAS[self._prev.token_type](self, expressions) +2953 +2954 self._retreat(index) +2955 +2956 this: t.Optional[exp.Expression] 2957 -2958 if self._match(TokenType.IGNORE_NULLS): -2959 this = self.expression(exp.IgnoreNulls, this=this) -2960 else: -2961 self._match(TokenType.RESPECT_NULLS) -2962 -2963 return self._parse_limit(self._parse_order(this)) +2958 if self._match(TokenType.DISTINCT): +2959 this = self.expression( +2960 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) +2961 ) +2962 else: +2963 this = self._parse_select_or_expression() 2964 -2965 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: -2966 index = self._index -2967 if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT): -2968 self._retreat(index) -2969 return this -2970 -2971 args = self._parse_csv( -2972 lambda: self._parse_constraint() -2973 or self._parse_column_def(self._parse_field(any_token=True)) -2974 ) -2975 self._match_r_paren() -2976 return self.expression(exp.Schema, this=this, expressions=args) -2977 -2978 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2979 kind = self._parse_types() -2980 -2981 if self._match_text_seq("FOR", "ORDINALITY"): -2982 return self.expression(exp.ColumnDef, this=this, ordinality=True) -2983 -2984 constraints = [] -2985 while True: -2986 constraint = self._parse_column_constraint() -2987 if not constraint: -2988 break -2989 constraints.append(constraint) -2990 -2991 if not kind and not constraints: -2992 return this -2993 -2994 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) +2965 if isinstance(this, exp.EQ): +2966 left = this.this +2967 if isinstance(left, exp.Column): +2968 left.replace(exp.Var(this=left.text("this"))) +2969 +2970 if self._match(TokenType.IGNORE_NULLS): +2971 this = self.expression(exp.IgnoreNulls, this=this) +2972 else: +2973 self._match(TokenType.RESPECT_NULLS) +2974 +2975 return self._parse_limit(self._parse_order(this)) +2976 +2977 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +2978 index = self._index +2979 if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT): +2980 self._retreat(index) +2981 return this +2982 +2983 args = self._parse_csv( +2984 lambda: self._parse_constraint() +2985 or self._parse_column_def(self._parse_field(any_token=True)) +2986 ) +2987 self._match_r_paren() +2988 return self.expression(exp.Schema, this=this, expressions=args) +2989 +2990 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2991 kind = self._parse_types() +2992 +2993 if self._match_text_seq("FOR", "ORDINALITY"): +2994 return self.expression(exp.ColumnDef, this=this, ordinality=True) 2995 -2996 def _parse_auto_increment(self) -> exp.Expression: -2997 start = None -2998 increment = None -2999 -3000 if self._match(TokenType.L_PAREN, advance=False): -3001 args = self._parse_wrapped_csv(self._parse_bitwise) -3002 start = seq_get(args, 0) -3003 increment = seq_get(args, 1) -3004 elif self._match_text_seq("START"): -3005 start = self._parse_bitwise() -3006 self._match_text_seq("INCREMENT") -3007 increment = self._parse_bitwise() -3008 -3009 if start and increment: -3010 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) +2996 constraints = [] +2997 while True: +2998 constraint = self._parse_column_constraint() +2999 if not constraint: +3000 break +3001 constraints.append(constraint) +3002 +3003 if not kind and not constraints: +3004 return this +3005 +3006 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) +3007 +3008 def _parse_auto_increment(self) -> exp.Expression: +3009 start = None +3010 increment = None 3011 -3012 return exp.AutoIncrementColumnConstraint() -3013 -3014 def _parse_compress(self) -> exp.Expression: -3015 if self._match(TokenType.L_PAREN, advance=False): -3016 return self.expression( -3017 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) -3018 ) -3019 -3020 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) -3021 -3022 def _parse_generated_as_identity(self) -> exp.Expression: -3023 if self._match(TokenType.BY_DEFAULT): -3024 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) -3025 else: -3026 self._match_text_seq("ALWAYS") -3027 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) -3028 -3029 self._match_text_seq("AS", "IDENTITY") -3030 if self._match(TokenType.L_PAREN): -3031 if self._match_text_seq("START", "WITH"): -3032 this.set("start", self._parse_bitwise()) -3033 if self._match_text_seq("INCREMENT", "BY"): -3034 this.set("increment", self._parse_bitwise()) -3035 if self._match_text_seq("MINVALUE"): -3036 this.set("minvalue", self._parse_bitwise()) -3037 if self._match_text_seq("MAXVALUE"): -3038 this.set("maxvalue", self._parse_bitwise()) -3039 -3040 if self._match_text_seq("CYCLE"): -3041 this.set("cycle", True) -3042 elif self._match_text_seq("NO", "CYCLE"): -3043 this.set("cycle", False) -3044 -3045 self._match_r_paren() -3046 -3047 return this -3048 -3049 def _parse_inline(self) -> t.Optional[exp.Expression]: -3050 self._match_text_seq("LENGTH") -3051 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) -3052 -3053 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: -3054 if self._match_text_seq("NULL"): -3055 return self.expression(exp.NotNullColumnConstraint) -3056 if self._match_text_seq("CASESPECIFIC"): -3057 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) -3058 return None -3059 -3060 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: -3061 this = self._parse_references() -3062 if this: -3063 return this +3012 if self._match(TokenType.L_PAREN, advance=False): +3013 args = self._parse_wrapped_csv(self._parse_bitwise) +3014 start = seq_get(args, 0) +3015 increment = seq_get(args, 1) +3016 elif self._match_text_seq("START"): +3017 start = self._parse_bitwise() +3018 self._match_text_seq("INCREMENT") +3019 increment = self._parse_bitwise() +3020 +3021 if start and increment: +3022 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) +3023 +3024 return exp.AutoIncrementColumnConstraint() +3025 +3026 def _parse_compress(self) -> exp.Expression: +3027 if self._match(TokenType.L_PAREN, advance=False): +3028 return self.expression( +3029 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) +3030 ) +3031 +3032 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) +3033 +3034 def _parse_generated_as_identity(self) -> exp.Expression: +3035 if self._match(TokenType.BY_DEFAULT): +3036 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) +3037 else: +3038 self._match_text_seq("ALWAYS") +3039 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) +3040 +3041 self._match_text_seq("AS", "IDENTITY") +3042 if self._match(TokenType.L_PAREN): +3043 if self._match_text_seq("START", "WITH"): +3044 this.set("start", self._parse_bitwise()) +3045 if self._match_text_seq("INCREMENT", "BY"): +3046 this.set("increment", self._parse_bitwise()) +3047 if self._match_text_seq("MINVALUE"): +3048 this.set("minvalue", self._parse_bitwise()) +3049 if self._match_text_seq("MAXVALUE"): +3050 this.set("maxvalue", self._parse_bitwise()) +3051 +3052 if self._match_text_seq("CYCLE"): +3053 this.set("cycle", True) +3054 elif self._match_text_seq("NO", "CYCLE"): +3055 this.set("cycle", False) +3056 +3057 self._match_r_paren() +3058 +3059 return this +3060 +3061 def _parse_inline(self) -> t.Optional[exp.Expression]: +3062 self._match_text_seq("LENGTH") +3063 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) 3064 -3065 if self._match(TokenType.CONSTRAINT): -3066 this = self._parse_id_var() -3067 -3068 if self._match_texts(self.CONSTRAINT_PARSERS): -3069 return self.expression( -3070 exp.ColumnConstraint, -3071 this=this, -3072 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), -3073 ) -3074 -3075 return this +3065 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: +3066 if self._match_text_seq("NULL"): +3067 return self.expression(exp.NotNullColumnConstraint) +3068 if self._match_text_seq("CASESPECIFIC"): +3069 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) +3070 return None +3071 +3072 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: +3073 this = self._parse_references() +3074 if this: +3075 return this 3076 -3077 def _parse_constraint(self) -> t.Optional[exp.Expression]: -3078 if not self._match(TokenType.CONSTRAINT): -3079 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) -3080 -3081 this = self._parse_id_var() -3082 expressions = [] -3083 -3084 while True: -3085 constraint = self._parse_unnamed_constraint() or self._parse_function() -3086 if not constraint: -3087 break -3088 expressions.append(constraint) -3089 -3090 return self.expression(exp.Constraint, this=this, expressions=expressions) -3091 -3092 def _parse_unnamed_constraint( -3093 self, constraints: t.Optional[t.Collection[str]] = None -3094 ) -> t.Optional[exp.Expression]: -3095 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): -3096 return None -3097 -3098 constraint = self._prev.text.upper() -3099 if constraint not in self.CONSTRAINT_PARSERS: -3100 self.raise_error(f"No parser found for schema constraint {constraint}.") +3077 if self._match(TokenType.CONSTRAINT): +3078 this = self._parse_id_var() +3079 +3080 if self._match_texts(self.CONSTRAINT_PARSERS): +3081 return self.expression( +3082 exp.ColumnConstraint, +3083 this=this, +3084 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), +3085 ) +3086 +3087 return this +3088 +3089 def _parse_constraint(self) -> t.Optional[exp.Expression]: +3090 if not self._match(TokenType.CONSTRAINT): +3091 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) +3092 +3093 this = self._parse_id_var() +3094 expressions = [] +3095 +3096 while True: +3097 constraint = self._parse_unnamed_constraint() or self._parse_function() +3098 if not constraint: +3099 break +3100 expressions.append(constraint) 3101 -3102 return self.CONSTRAINT_PARSERS[constraint](self) +3102 return self.expression(exp.Constraint, this=this, expressions=expressions) 3103 -3104 def _parse_unique(self) -> exp.Expression: -3105 if not self._match(TokenType.L_PAREN, advance=False): -3106 return self.expression(exp.UniqueColumnConstraint) -3107 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) -3108 -3109 def _parse_key_constraint_options(self) -> t.List[str]: -3110 options = [] -3111 while True: -3112 if not self._curr: -3113 break -3114 -3115 if self._match(TokenType.ON): -3116 action = None -3117 on = self._advance_any() and self._prev.text -3118 -3119 if self._match(TokenType.NO_ACTION): -3120 action = "NO ACTION" -3121 elif self._match(TokenType.CASCADE): -3122 action = "CASCADE" -3123 elif self._match_pair(TokenType.SET, TokenType.NULL): -3124 action = "SET NULL" -3125 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): -3126 action = "SET DEFAULT" -3127 else: -3128 self.raise_error("Invalid key constraint") -3129 -3130 options.append(f"ON {on} {action}") -3131 elif self._match_text_seq("NOT", "ENFORCED"): -3132 options.append("NOT ENFORCED") -3133 elif self._match_text_seq("DEFERRABLE"): -3134 options.append("DEFERRABLE") -3135 elif self._match_text_seq("INITIALLY", "DEFERRED"): -3136 options.append("INITIALLY DEFERRED") -3137 elif self._match_text_seq("NORELY"): -3138 options.append("NORELY") -3139 elif self._match_text_seq("MATCH", "FULL"): -3140 options.append("MATCH FULL") -3141 else: -3142 break -3143 -3144 return options -3145 -3146 def _parse_references(self) -> t.Optional[exp.Expression]: -3147 if not self._match(TokenType.REFERENCES): -3148 return None -3149 -3150 expressions = None -3151 this = self._parse_id_var() -3152 -3153 if self._match(TokenType.L_PAREN, advance=False): -3154 expressions = self._parse_wrapped_id_vars() +3104 def _parse_unnamed_constraint( +3105 self, constraints: t.Optional[t.Collection[str]] = None +3106 ) -> t.Optional[exp.Expression]: +3107 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): +3108 return None +3109 +3110 constraint = self._prev.text.upper() +3111 if constraint not in self.CONSTRAINT_PARSERS: +3112 self.raise_error(f"No parser found for schema constraint {constraint}.") +3113 +3114 return self.CONSTRAINT_PARSERS[constraint](self) +3115 +3116 def _parse_unique(self) -> exp.Expression: +3117 if not self._match(TokenType.L_PAREN, advance=False): +3118 return self.expression(exp.UniqueColumnConstraint) +3119 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) +3120 +3121 def _parse_key_constraint_options(self) -> t.List[str]: +3122 options = [] +3123 while True: +3124 if not self._curr: +3125 break +3126 +3127 if self._match(TokenType.ON): +3128 action = None +3129 on = self._advance_any() and self._prev.text +3130 +3131 if self._match(TokenType.NO_ACTION): +3132 action = "NO ACTION" +3133 elif self._match(TokenType.CASCADE): +3134 action = "CASCADE" +3135 elif self._match_pair(TokenType.SET, TokenType.NULL): +3136 action = "SET NULL" +3137 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): +3138 action = "SET DEFAULT" +3139 else: +3140 self.raise_error("Invalid key constraint") +3141 +3142 options.append(f"ON {on} {action}") +3143 elif self._match_text_seq("NOT", "ENFORCED"): +3144 options.append("NOT ENFORCED") +3145 elif self._match_text_seq("DEFERRABLE"): +3146 options.append("DEFERRABLE") +3147 elif self._match_text_seq("INITIALLY", "DEFERRED"): +3148 options.append("INITIALLY DEFERRED") +3149 elif self._match_text_seq("NORELY"): +3150 options.append("NORELY") +3151 elif self._match_text_seq("MATCH", "FULL"): +3152 options.append("MATCH FULL") +3153 else: +3154 break 3155 -3156 options = self._parse_key_constraint_options() -3157 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) -3158 -3159 def _parse_foreign_key(self) -> exp.Expression: -3160 expressions = self._parse_wrapped_id_vars() -3161 reference = self._parse_references() -3162 options = {} -3163 -3164 while self._match(TokenType.ON): -3165 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): -3166 self.raise_error("Expected DELETE or UPDATE") +3156 return options +3157 +3158 def _parse_references(self) -> t.Optional[exp.Expression]: +3159 if not self._match(TokenType.REFERENCES): +3160 return None +3161 +3162 expressions = None +3163 this = self._parse_id_var() +3164 +3165 if self._match(TokenType.L_PAREN, advance=False): +3166 expressions = self._parse_wrapped_id_vars() 3167 -3168 kind = self._prev.text.lower() -3169 -3170 if self._match(TokenType.NO_ACTION): -3171 action = "NO ACTION" -3172 elif self._match(TokenType.SET): -3173 self._match_set((TokenType.NULL, TokenType.DEFAULT)) -3174 action = "SET " + self._prev.text.upper() -3175 else: -3176 self._advance() -3177 action = self._prev.text.upper() -3178 -3179 options[kind] = action -3180 -3181 return self.expression( -3182 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore -3183 ) -3184 -3185 def _parse_primary_key(self) -> exp.Expression: -3186 desc = ( -3187 self._match_set((TokenType.ASC, TokenType.DESC)) -3188 and self._prev.token_type == TokenType.DESC -3189 ) +3168 options = self._parse_key_constraint_options() +3169 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) +3170 +3171 def _parse_foreign_key(self) -> exp.Expression: +3172 expressions = self._parse_wrapped_id_vars() +3173 reference = self._parse_references() +3174 options = {} +3175 +3176 while self._match(TokenType.ON): +3177 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): +3178 self.raise_error("Expected DELETE or UPDATE") +3179 +3180 kind = self._prev.text.lower() +3181 +3182 if self._match(TokenType.NO_ACTION): +3183 action = "NO ACTION" +3184 elif self._match(TokenType.SET): +3185 self._match_set((TokenType.NULL, TokenType.DEFAULT)) +3186 action = "SET " + self._prev.text.upper() +3187 else: +3188 self._advance() +3189 action = self._prev.text.upper() 3190 -3191 if not self._match(TokenType.L_PAREN, advance=False): -3192 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) -3193 -3194 expressions = self._parse_wrapped_id_vars() -3195 options = self._parse_key_constraint_options() -3196 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) -3197 -3198 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3199 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): -3200 return this -3201 -3202 bracket_kind = self._prev.token_type -3203 expressions: t.List[t.Optional[exp.Expression]] -3204 -3205 if self._match(TokenType.COLON): -3206 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] -3207 else: -3208 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) +3191 options[kind] = action +3192 +3193 return self.expression( +3194 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore +3195 ) +3196 +3197 def _parse_primary_key(self) -> exp.Expression: +3198 desc = ( +3199 self._match_set((TokenType.ASC, TokenType.DESC)) +3200 and self._prev.token_type == TokenType.DESC +3201 ) +3202 +3203 if not self._match(TokenType.L_PAREN, advance=False): +3204 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) +3205 +3206 expressions = self._parse_wrapped_id_vars() +3207 options = self._parse_key_constraint_options() +3208 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) 3209 -3210 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs -3211 if bracket_kind == TokenType.L_BRACE: -3212 this = self.expression(exp.Struct, expressions=expressions) -3213 elif not this or this.name.upper() == "ARRAY": -3214 this = self.expression(exp.Array, expressions=expressions) -3215 else: -3216 expressions = apply_index_offset(expressions, -self.index_offset) -3217 this = self.expression(exp.Bracket, this=this, expressions=expressions) -3218 -3219 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: -3220 self.raise_error("Expected ]") -3221 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: -3222 self.raise_error("Expected }") -3223 -3224 this.comments = self._prev_comments -3225 return self._parse_bracket(this) -3226 -3227 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3228 if self._match(TokenType.COLON): -3229 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) -3230 return this -3231 -3232 def _parse_case(self) -> t.Optional[exp.Expression]: -3233 ifs = [] -3234 default = None +3210 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3211 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): +3212 return this +3213 +3214 bracket_kind = self._prev.token_type +3215 expressions: t.List[t.Optional[exp.Expression]] +3216 +3217 if self._match(TokenType.COLON): +3218 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] +3219 else: +3220 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) +3221 +3222 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs +3223 if bracket_kind == TokenType.L_BRACE: +3224 this = self.expression(exp.Struct, expressions=expressions) +3225 elif not this or this.name.upper() == "ARRAY": +3226 this = self.expression(exp.Array, expressions=expressions) +3227 else: +3228 expressions = apply_index_offset(expressions, -self.index_offset) +3229 this = self.expression(exp.Bracket, this=this, expressions=expressions) +3230 +3231 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: +3232 self.raise_error("Expected ]") +3233 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: +3234 self.raise_error("Expected }") 3235 -3236 expression = self._parse_conjunction() -3237 -3238 while self._match(TokenType.WHEN): -3239 this = self._parse_conjunction() -3240 self._match(TokenType.THEN) -3241 then = self._parse_conjunction() -3242 ifs.append(self.expression(exp.If, this=this, true=then)) +3236 this.comments = self._prev_comments +3237 return self._parse_bracket(this) +3238 +3239 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3240 if self._match(TokenType.COLON): +3241 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) +3242 return this 3243 -3244 if self._match(TokenType.ELSE): -3245 default = self._parse_conjunction() -3246 -3247 if not self._match(TokenType.END): -3248 self.raise_error("Expected END after CASE", self._prev) +3244 def _parse_case(self) -> t.Optional[exp.Expression]: +3245 ifs = [] +3246 default = None +3247 +3248 expression = self._parse_conjunction() 3249 -3250 return self._parse_window( -3251 self.expression(exp.Case, this=expression, ifs=ifs, default=default) -3252 ) -3253 -3254 def _parse_if(self) -> t.Optional[exp.Expression]: -3255 if self._match(TokenType.L_PAREN): -3256 args = self._parse_csv(self._parse_conjunction) -3257 this = exp.If.from_arg_list(args) -3258 self.validate_expression(this, args) -3259 self._match_r_paren() -3260 else: -3261 condition = self._parse_conjunction() -3262 self._match(TokenType.THEN) -3263 true = self._parse_conjunction() -3264 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None -3265 self._match(TokenType.END) -3266 this = self.expression(exp.If, this=condition, true=true, false=false) -3267 -3268 return self._parse_window(this) -3269 -3270 def _parse_extract(self) -> exp.Expression: -3271 this = self._parse_function() or self._parse_var() or self._parse_type() -3272 -3273 if self._match(TokenType.FROM): -3274 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) -3275 -3276 if not self._match(TokenType.COMMA): -3277 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) -3278 -3279 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) -3280 -3281 def _parse_cast(self, strict: bool) -> exp.Expression: -3282 this = self._parse_conjunction() -3283 -3284 if not self._match(TokenType.ALIAS): -3285 self.raise_error("Expected AS after CAST") -3286 -3287 to = self._parse_types() -3288 -3289 if not to: -3290 self.raise_error("Expected TYPE after CAST") -3291 elif to.this == exp.DataType.Type.CHAR: -3292 if self._match(TokenType.CHARACTER_SET): -3293 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) -3294 -3295 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) -3296 -3297 def _parse_string_agg(self) -> exp.Expression: -3298 expression: t.Optional[exp.Expression] -3299 -3300 if self._match(TokenType.DISTINCT): -3301 args = self._parse_csv(self._parse_conjunction) -3302 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) -3303 else: -3304 args = self._parse_csv(self._parse_conjunction) -3305 expression = seq_get(args, 0) +3250 while self._match(TokenType.WHEN): +3251 this = self._parse_conjunction() +3252 self._match(TokenType.THEN) +3253 then = self._parse_conjunction() +3254 ifs.append(self.expression(exp.If, this=this, true=then)) +3255 +3256 if self._match(TokenType.ELSE): +3257 default = self._parse_conjunction() +3258 +3259 if not self._match(TokenType.END): +3260 self.raise_error("Expected END after CASE", self._prev) +3261 +3262 return self._parse_window( +3263 self.expression(exp.Case, this=expression, ifs=ifs, default=default) +3264 ) +3265 +3266 def _parse_if(self) -> t.Optional[exp.Expression]: +3267 if self._match(TokenType.L_PAREN): +3268 args = self._parse_csv(self._parse_conjunction) +3269 this = exp.If.from_arg_list(args) +3270 self.validate_expression(this, args) +3271 self._match_r_paren() +3272 else: +3273 condition = self._parse_conjunction() +3274 self._match(TokenType.THEN) +3275 true = self._parse_conjunction() +3276 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None +3277 self._match(TokenType.END) +3278 this = self.expression(exp.If, this=condition, true=true, false=false) +3279 +3280 return self._parse_window(this) +3281 +3282 def _parse_extract(self) -> exp.Expression: +3283 this = self._parse_function() or self._parse_var() or self._parse_type() +3284 +3285 if self._match(TokenType.FROM): +3286 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3287 +3288 if not self._match(TokenType.COMMA): +3289 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) +3290 +3291 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3292 +3293 def _parse_cast(self, strict: bool) -> exp.Expression: +3294 this = self._parse_conjunction() +3295 +3296 if not self._match(TokenType.ALIAS): +3297 self.raise_error("Expected AS after CAST") +3298 +3299 to = self._parse_types() +3300 +3301 if not to: +3302 self.raise_error("Expected TYPE after CAST") +3303 elif to.this == exp.DataType.Type.CHAR: +3304 if self._match(TokenType.CHARACTER_SET): +3305 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) 3306 -3307 index = self._index -3308 if not self._match(TokenType.R_PAREN): -3309 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) -3310 order = self._parse_order(this=expression) -3311 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) -3312 -3313 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). -3314 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that -3315 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. -3316 if not self._match(TokenType.WITHIN_GROUP): -3317 self._retreat(index) -3318 this = exp.GroupConcat.from_arg_list(args) -3319 self.validate_expression(this, args) -3320 return this -3321 -3322 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) -3323 order = self._parse_order(this=expression) -3324 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) -3325 -3326 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: -3327 to: t.Optional[exp.Expression] -3328 this = self._parse_bitwise() -3329 -3330 if self._match(TokenType.USING): -3331 to = self.expression(exp.CharacterSet, this=self._parse_var()) -3332 elif self._match(TokenType.COMMA): -3333 to = self._parse_bitwise() -3334 else: -3335 to = None -3336 -3337 # Swap the argument order if needed to produce the correct AST -3338 if self.CONVERT_TYPE_FIRST: -3339 this, to = to, this -3340 -3341 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) -3342 -3343 def _parse_json_key_value(self) -> t.Optional[exp.Expression]: -3344 self._match_text_seq("KEY") -3345 key = self._parse_field() -3346 self._match(TokenType.COLON) -3347 self._match_text_seq("VALUE") -3348 value = self._parse_field() -3349 if not key and not value: -3350 return None -3351 return self.expression(exp.JSONKeyValue, this=key, expression=value) +3307 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3308 +3309 def _parse_string_agg(self) -> exp.Expression: +3310 expression: t.Optional[exp.Expression] +3311 +3312 if self._match(TokenType.DISTINCT): +3313 args = self._parse_csv(self._parse_conjunction) +3314 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) +3315 else: +3316 args = self._parse_csv(self._parse_conjunction) +3317 expression = seq_get(args, 0) +3318 +3319 index = self._index +3320 if not self._match(TokenType.R_PAREN): +3321 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) +3322 order = self._parse_order(this=expression) +3323 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3324 +3325 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). +3326 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that +3327 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. +3328 if not self._match(TokenType.WITHIN_GROUP): +3329 self._retreat(index) +3330 this = exp.GroupConcat.from_arg_list(args) +3331 self.validate_expression(this, args) +3332 return this +3333 +3334 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) +3335 order = self._parse_order(this=expression) +3336 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3337 +3338 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: +3339 to: t.Optional[exp.Expression] +3340 this = self._parse_bitwise() +3341 +3342 if self._match(TokenType.USING): +3343 to = self.expression(exp.CharacterSet, this=self._parse_var()) +3344 elif self._match(TokenType.COMMA): +3345 to = self._parse_bitwise() +3346 else: +3347 to = None +3348 +3349 # Swap the argument order if needed to produce the correct AST +3350 if self.CONVERT_TYPE_FIRST: +3351 this, to = to, this 3352 -3353 def _parse_json_object(self) -> exp.Expression: -3354 expressions = self._parse_csv(self._parse_json_key_value) -3355 -3356 null_handling = None -3357 if self._match_text_seq("NULL", "ON", "NULL"): -3358 null_handling = "NULL ON NULL" -3359 elif self._match_text_seq("ABSENT", "ON", "NULL"): -3360 null_handling = "ABSENT ON NULL" +3353 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3354 +3355 def _parse_decode(self) -> t.Optional[exp.Expression]: +3356 """ +3357 There are generally two variants of the DECODE function: +3358 +3359 - DECODE(bin, charset) +3360 - DECODE(expression, search, result [, search, result] ... [, default]) 3361 -3362 unique_keys = None -3363 if self._match_text_seq("WITH", "UNIQUE"): -3364 unique_keys = True -3365 elif self._match_text_seq("WITHOUT", "UNIQUE"): -3366 unique_keys = False +3362 The second variant will always be parsed into a CASE expression. Note that NULL +3363 needs special treatment, since we need to explicitly check for it with `IS NULL`, +3364 instead of relying on pattern matching. +3365 """ +3366 args = self._parse_csv(self._parse_conjunction) 3367 -3368 self._match_text_seq("KEYS") -3369 -3370 return_type = self._match_text_seq("RETURNING") and self._parse_type() -3371 format_json = self._match_text_seq("FORMAT", "JSON") -3372 encoding = self._match_text_seq("ENCODING") and self._parse_var() -3373 -3374 return self.expression( -3375 exp.JSONObject, -3376 expressions=expressions, -3377 null_handling=null_handling, -3378 unique_keys=unique_keys, -3379 return_type=return_type, -3380 format_json=format_json, -3381 encoding=encoding, -3382 ) -3383 -3384 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: -3385 args = self._parse_csv(self._parse_bitwise) -3386 -3387 if self._match(TokenType.IN): -3388 return self.expression( -3389 exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0) -3390 ) -3391 -3392 if haystack_first: -3393 haystack = seq_get(args, 0) -3394 needle = seq_get(args, 1) -3395 else: -3396 needle = seq_get(args, 0) -3397 haystack = seq_get(args, 1) -3398 -3399 this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2)) -3400 -3401 self.validate_expression(this, args) -3402 -3403 return this -3404 -3405 def _parse_join_hint(self, func_name: str) -> exp.Expression: -3406 args = self._parse_csv(self._parse_table) -3407 return exp.JoinHint(this=func_name.upper(), expressions=args) -3408 -3409 def _parse_substring(self) -> exp.Expression: -3410 # Postgres supports the form: substring(string [from int] [for int]) -3411 # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 +3368 if len(args) < 3: +3369 return self.expression(exp.Decode, this=seq_get(args, 0), charset=seq_get(args, 1)) +3370 +3371 expression, *expressions = args +3372 if not expression: +3373 return None +3374 +3375 ifs = [] +3376 for search, result in zip(expressions[::2], expressions[1::2]): +3377 if not search or not result: +3378 return None +3379 +3380 if isinstance(search, exp.Literal): +3381 ifs.append( +3382 exp.If(this=exp.EQ(this=expression.copy(), expression=search), true=result) +3383 ) +3384 elif isinstance(search, exp.Null): +3385 ifs.append( +3386 exp.If(this=exp.Is(this=expression.copy(), expression=exp.Null()), true=result) +3387 ) +3388 else: +3389 cond = exp.or_( +3390 exp.EQ(this=expression.copy(), expression=search), +3391 exp.and_( +3392 exp.Is(this=expression.copy(), expression=exp.Null()), +3393 exp.Is(this=search.copy(), expression=exp.Null()), +3394 ), +3395 ) +3396 ifs.append(exp.If(this=cond, true=result)) +3397 +3398 return exp.Case(ifs=ifs, default=expressions[-1] if len(expressions) % 2 == 1 else None) +3399 +3400 def _parse_json_key_value(self) -> t.Optional[exp.Expression]: +3401 self._match_text_seq("KEY") +3402 key = self._parse_field() +3403 self._match(TokenType.COLON) +3404 self._match_text_seq("VALUE") +3405 value = self._parse_field() +3406 if not key and not value: +3407 return None +3408 return self.expression(exp.JSONKeyValue, this=key, expression=value) +3409 +3410 def _parse_json_object(self) -> exp.Expression: +3411 expressions = self._parse_csv(self._parse_json_key_value) 3412 -3413 args = self._parse_csv(self._parse_bitwise) -3414 -3415 if self._match(TokenType.FROM): -3416 args.append(self._parse_bitwise()) -3417 if self._match(TokenType.FOR): -3418 args.append(self._parse_bitwise()) -3419 -3420 this = exp.Substring.from_arg_list(args) -3421 self.validate_expression(this, args) -3422 -3423 return this +3413 null_handling = None +3414 if self._match_text_seq("NULL", "ON", "NULL"): +3415 null_handling = "NULL ON NULL" +3416 elif self._match_text_seq("ABSENT", "ON", "NULL"): +3417 null_handling = "ABSENT ON NULL" +3418 +3419 unique_keys = None +3420 if self._match_text_seq("WITH", "UNIQUE"): +3421 unique_keys = True +3422 elif self._match_text_seq("WITHOUT", "UNIQUE"): +3423 unique_keys = False 3424 -3425 def _parse_trim(self) -> exp.Expression: -3426 # https://www.w3resource.com/sql/character-functions/trim.php -3427 # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html -3428 -3429 position = None -3430 collation = None -3431 -3432 if self._match_set(self.TRIM_TYPES): -3433 position = self._prev.text.upper() -3434 -3435 expression = self._parse_term() -3436 if self._match_set((TokenType.FROM, TokenType.COMMA)): -3437 this = self._parse_term() -3438 else: -3439 this = expression -3440 expression = None -3441 -3442 if self._match(TokenType.COLLATE): -3443 collation = self._parse_term() +3425 self._match_text_seq("KEYS") +3426 +3427 return_type = self._match_text_seq("RETURNING") and self._parse_type() +3428 format_json = self._match_text_seq("FORMAT", "JSON") +3429 encoding = self._match_text_seq("ENCODING") and self._parse_var() +3430 +3431 return self.expression( +3432 exp.JSONObject, +3433 expressions=expressions, +3434 null_handling=null_handling, +3435 unique_keys=unique_keys, +3436 return_type=return_type, +3437 format_json=format_json, +3438 encoding=encoding, +3439 ) +3440 +3441 def _parse_logarithm(self) -> exp.Expression: +3442 # Default argument order is base, expression +3443 args = self._parse_csv(self._parse_range) 3444 -3445 return self.expression( -3446 exp.Trim, -3447 this=this, -3448 position=position, -3449 expression=expression, -3450 collation=collation, -3451 ) -3452 -3453 def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3454 return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window) -3455 -3456 def _parse_named_window(self) -> t.Optional[exp.Expression]: -3457 return self._parse_window(self._parse_id_var(), alias=True) +3445 if len(args) > 1: +3446 if not self.LOG_BASE_FIRST: +3447 args.reverse() +3448 return exp.Log.from_arg_list(args) +3449 +3450 return self.expression( +3451 exp.Ln if self.LOG_DEFAULTS_TO_LN else exp.Log, this=seq_get(args, 0) +3452 ) +3453 +3454 def _parse_match_against(self) -> exp.Expression: +3455 expressions = self._parse_csv(self._parse_column) +3456 +3457 self._match_text_seq(")", "AGAINST", "(") 3458 -3459 def _parse_window( -3460 self, this: t.Optional[exp.Expression], alias: bool = False -3461 ) -> t.Optional[exp.Expression]: -3462 if self._match_pair(TokenType.FILTER, TokenType.L_PAREN): -3463 this = self.expression(exp.Filter, this=this, expression=self._parse_where()) -3464 self._match_r_paren() -3465 -3466 # T-SQL allows the OVER (...) syntax after WITHIN GROUP. -3467 # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16 -3468 if self._match(TokenType.WITHIN_GROUP): -3469 order = self._parse_wrapped(self._parse_order) -3470 this = self.expression(exp.WithinGroup, this=this, expression=order) +3459 this = self._parse_string() +3460 +3461 if self._match_text_seq("IN", "NATURAL", "LANGUAGE", "MODE"): +3462 modifier = "IN NATURAL LANGUAGE MODE" +3463 if self._match_text_seq("WITH", "QUERY", "EXPANSION"): +3464 modifier = f"{modifier} WITH QUERY EXPANSION" +3465 elif self._match_text_seq("IN", "BOOLEAN", "MODE"): +3466 modifier = "IN BOOLEAN MODE" +3467 elif self._match_text_seq("WITH", "QUERY", "EXPANSION"): +3468 modifier = "WITH QUERY EXPANSION" +3469 else: +3470 modifier = None 3471 -3472 # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER -3473 # Some dialects choose to implement and some do not. -3474 # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html +3472 return self.expression( +3473 exp.MatchAgainst, this=this, expressions=expressions, modifier=modifier +3474 ) 3475 -3476 # There is some code above in _parse_lambda that handles -3477 # SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ... +3476 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: +3477 args = self._parse_csv(self._parse_bitwise) 3478 -3479 # The below changes handle -3480 # SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ... -3481 -3482 # Oracle allows both formats -3483 # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) -3484 # and Snowflake chose to do the same for familiarity -3485 # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes -3486 if self._match(TokenType.IGNORE_NULLS): -3487 this = self.expression(exp.IgnoreNulls, this=this) -3488 elif self._match(TokenType.RESPECT_NULLS): -3489 this = self.expression(exp.RespectNulls, this=this) +3479 if self._match(TokenType.IN): +3480 return self.expression( +3481 exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0) +3482 ) +3483 +3484 if haystack_first: +3485 haystack = seq_get(args, 0) +3486 needle = seq_get(args, 1) +3487 else: +3488 needle = seq_get(args, 0) +3489 haystack = seq_get(args, 1) 3490 -3491 # bigquery select from window x AS (partition by ...) -3492 if alias: -3493 self._match(TokenType.ALIAS) -3494 elif not self._match(TokenType.OVER): -3495 return this +3491 this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2)) +3492 +3493 self.validate_expression(this, args) +3494 +3495 return this 3496 -3497 if not self._match(TokenType.L_PAREN): -3498 return self.expression(exp.Window, this=this, alias=self._parse_id_var(False)) -3499 -3500 window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS) -3501 partition = self._parse_partition_by() -3502 order = self._parse_order() -3503 kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text +3497 def _parse_join_hint(self, func_name: str) -> exp.Expression: +3498 args = self._parse_csv(self._parse_table) +3499 return exp.JoinHint(this=func_name.upper(), expressions=args) +3500 +3501 def _parse_substring(self) -> exp.Expression: +3502 # Postgres supports the form: substring(string [from int] [for int]) +3503 # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 3504 -3505 if kind: -3506 self._match(TokenType.BETWEEN) -3507 start = self._parse_window_spec() -3508 self._match(TokenType.AND) -3509 end = self._parse_window_spec() -3510 -3511 spec = self.expression( -3512 exp.WindowSpec, -3513 kind=kind, -3514 start=start["value"], -3515 start_side=start["side"], -3516 end=end["value"], -3517 end_side=end["side"], -3518 ) -3519 else: -3520 spec = None -3521 -3522 self._match_r_paren() +3505 args = self._parse_csv(self._parse_bitwise) +3506 +3507 if self._match(TokenType.FROM): +3508 args.append(self._parse_bitwise()) +3509 if self._match(TokenType.FOR): +3510 args.append(self._parse_bitwise()) +3511 +3512 this = exp.Substring.from_arg_list(args) +3513 self.validate_expression(this, args) +3514 +3515 return this +3516 +3517 def _parse_trim(self) -> exp.Expression: +3518 # https://www.w3resource.com/sql/character-functions/trim.php +3519 # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html +3520 +3521 position = None +3522 collation = None 3523 -3524 return self.expression( -3525 exp.Window, -3526 this=this, -3527 partition_by=partition, -3528 order=order, -3529 spec=spec, -3530 alias=window_alias, -3531 ) -3532 -3533 def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]: -3534 self._match(TokenType.BETWEEN) -3535 -3536 return { -3537 "value": ( -3538 self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text -3539 ) -3540 or self._parse_bitwise(), -3541 "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text, -3542 } -3543 -3544 def _parse_alias( -3545 self, this: t.Optional[exp.Expression], explicit: bool = False -3546 ) -> t.Optional[exp.Expression]: -3547 any_token = self._match(TokenType.ALIAS) -3548 -3549 if explicit and not any_token: -3550 return this -3551 -3552 if self._match(TokenType.L_PAREN): -3553 aliases = self.expression( -3554 exp.Aliases, -3555 this=this, -3556 expressions=self._parse_csv(lambda: self._parse_id_var(any_token)), -3557 ) -3558 self._match_r_paren(aliases) -3559 return aliases -3560 -3561 alias = self._parse_id_var(any_token) -3562 -3563 if alias: -3564 return self.expression(exp.Alias, this=this, alias=alias) -3565 -3566 return this +3524 if self._match_set(self.TRIM_TYPES): +3525 position = self._prev.text.upper() +3526 +3527 expression = self._parse_term() +3528 if self._match_set((TokenType.FROM, TokenType.COMMA)): +3529 this = self._parse_term() +3530 else: +3531 this = expression +3532 expression = None +3533 +3534 if self._match(TokenType.COLLATE): +3535 collation = self._parse_term() +3536 +3537 return self.expression( +3538 exp.Trim, +3539 this=this, +3540 position=position, +3541 expression=expression, +3542 collation=collation, +3543 ) +3544 +3545 def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3546 return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window) +3547 +3548 def _parse_named_window(self) -> t.Optional[exp.Expression]: +3549 return self._parse_window(self._parse_id_var(), alias=True) +3550 +3551 def _parse_window( +3552 self, this: t.Optional[exp.Expression], alias: bool = False +3553 ) -> t.Optional[exp.Expression]: +3554 if self._match_pair(TokenType.FILTER, TokenType.L_PAREN): +3555 this = self.expression(exp.Filter, this=this, expression=self._parse_where()) +3556 self._match_r_paren() +3557 +3558 # T-SQL allows the OVER (...) syntax after WITHIN GROUP. +3559 # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16 +3560 if self._match(TokenType.WITHIN_GROUP): +3561 order = self._parse_wrapped(self._parse_order) +3562 this = self.expression(exp.WithinGroup, this=this, expression=order) +3563 +3564 # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER +3565 # Some dialects choose to implement and some do not. +3566 # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html 3567 -3568 def _parse_id_var( -3569 self, -3570 any_token: bool = True, -3571 tokens: t.Optional[t.Collection[TokenType]] = None, -3572 prefix_tokens: t.Optional[t.Collection[TokenType]] = None, -3573 ) -> t.Optional[exp.Expression]: -3574 identifier = self._parse_identifier() -3575 -3576 if identifier: -3577 return identifier -3578 -3579 prefix = "" -3580 -3581 if prefix_tokens: -3582 while self._match_set(prefix_tokens): -3583 prefix += self._prev.text -3584 -3585 if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS): -3586 quoted = self._prev.token_type == TokenType.STRING -3587 return exp.Identifier(this=prefix + self._prev.text, quoted=quoted) +3568 # There is some code above in _parse_lambda that handles +3569 # SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ... +3570 +3571 # The below changes handle +3572 # SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ... +3573 +3574 # Oracle allows both formats +3575 # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) +3576 # and Snowflake chose to do the same for familiarity +3577 # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes +3578 if self._match(TokenType.IGNORE_NULLS): +3579 this = self.expression(exp.IgnoreNulls, this=this) +3580 elif self._match(TokenType.RESPECT_NULLS): +3581 this = self.expression(exp.RespectNulls, this=this) +3582 +3583 # bigquery select from window x AS (partition by ...) +3584 if alias: +3585 self._match(TokenType.ALIAS) +3586 elif not self._match(TokenType.OVER): +3587 return this 3588 -3589 return None -3590 -3591 def _parse_string(self) -> t.Optional[exp.Expression]: -3592 if self._match(TokenType.STRING): -3593 return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev) -3594 return self._parse_placeholder() -3595 -3596 def _parse_string_as_identifier(self) -> t.Optional[exp.Expression]: -3597 return exp.to_identifier(self._match(TokenType.STRING) and self._prev.text, quoted=True) -3598 -3599 def _parse_number(self) -> t.Optional[exp.Expression]: -3600 if self._match(TokenType.NUMBER): -3601 return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev) -3602 return self._parse_placeholder() -3603 -3604 def _parse_identifier(self) -> t.Optional[exp.Expression]: -3605 if self._match(TokenType.IDENTIFIER): -3606 return self.expression(exp.Identifier, this=self._prev.text, quoted=True) -3607 return self._parse_placeholder() -3608 -3609 def _parse_var( -3610 self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None -3611 ) -> t.Optional[exp.Expression]: -3612 if ( -3613 (any_token and self._advance_any()) -3614 or self._match(TokenType.VAR) -3615 or (self._match_set(tokens) if tokens else False) -3616 ): -3617 return self.expression(exp.Var, this=self._prev.text) -3618 return self._parse_placeholder() -3619 -3620 def _advance_any(self) -> t.Optional[Token]: -3621 if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS: -3622 self._advance() -3623 return self._prev -3624 return None -3625 -3626 def _parse_var_or_string(self) -> t.Optional[exp.Expression]: -3627 return self._parse_var() or self._parse_string() -3628 -3629 def _parse_null(self) -> t.Optional[exp.Expression]: -3630 if self._match(TokenType.NULL): -3631 return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev) -3632 return None -3633 -3634 def _parse_boolean(self) -> t.Optional[exp.Expression]: -3635 if self._match(TokenType.TRUE): -3636 return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev) -3637 if self._match(TokenType.FALSE): -3638 return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev) -3639 return None +3589 if not self._match(TokenType.L_PAREN): +3590 return self.expression(exp.Window, this=this, alias=self._parse_id_var(False)) +3591 +3592 window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS) +3593 partition = self._parse_partition_by() +3594 order = self._parse_order() +3595 kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text +3596 +3597 if kind: +3598 self._match(TokenType.BETWEEN) +3599 start = self._parse_window_spec() +3600 self._match(TokenType.AND) +3601 end = self._parse_window_spec() +3602 +3603 spec = self.expression( +3604 exp.WindowSpec, +3605 kind=kind, +3606 start=start["value"], +3607 start_side=start["side"], +3608 end=end["value"], +3609 end_side=end["side"], +3610 ) +3611 else: +3612 spec = None +3613 +3614 self._match_r_paren() +3615 +3616 return self.expression( +3617 exp.Window, +3618 this=this, +3619 partition_by=partition, +3620 order=order, +3621 spec=spec, +3622 alias=window_alias, +3623 ) +3624 +3625 def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]: +3626 self._match(TokenType.BETWEEN) +3627 +3628 return { +3629 "value": ( +3630 self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text +3631 ) +3632 or self._parse_bitwise(), +3633 "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text, +3634 } +3635 +3636 def _parse_alias( +3637 self, this: t.Optional[exp.Expression], explicit: bool = False +3638 ) -> t.Optional[exp.Expression]: +3639 any_token = self._match(TokenType.ALIAS) 3640 -3641 def _parse_star(self) -> t.Optional[exp.Expression]: -3642 if self._match(TokenType.STAR): -3643 return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev) -3644 return None -3645 -3646 def _parse_parameter(self) -> exp.Expression: -3647 wrapped = self._match(TokenType.L_BRACE) -3648 this = self._parse_var() or self._parse_primary() -3649 self._match(TokenType.R_BRACE) -3650 return self.expression(exp.Parameter, this=this, wrapped=wrapped) -3651 -3652 def _parse_placeholder(self) -> t.Optional[exp.Expression]: -3653 if self._match_set(self.PLACEHOLDER_PARSERS): -3654 placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self) -3655 if placeholder: -3656 return placeholder -3657 self._advance(-1) -3658 return None +3641 if explicit and not any_token: +3642 return this +3643 +3644 if self._match(TokenType.L_PAREN): +3645 aliases = self.expression( +3646 exp.Aliases, +3647 this=this, +3648 expressions=self._parse_csv(lambda: self._parse_id_var(any_token)), +3649 ) +3650 self._match_r_paren(aliases) +3651 return aliases +3652 +3653 alias = self._parse_id_var(any_token) +3654 +3655 if alias: +3656 return self.expression(exp.Alias, this=this, alias=alias) +3657 +3658 return this 3659 -3660 def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3661 if not self._match(TokenType.EXCEPT): -3662 return None -3663 if self._match(TokenType.L_PAREN, advance=False): -3664 return self._parse_wrapped_csv(self._parse_column) -3665 return self._parse_csv(self._parse_column) -3666 -3667 def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3668 if not self._match(TokenType.REPLACE): -3669 return None -3670 if self._match(TokenType.L_PAREN, advance=False): -3671 return self._parse_wrapped_csv(self._parse_expression) -3672 return self._parse_csv(self._parse_expression) -3673 -3674 def _parse_csv( -3675 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA -3676 ) -> t.List[t.Optional[exp.Expression]]: -3677 parse_result = parse_method() -3678 items = [parse_result] if parse_result is not None else [] -3679 -3680 while self._match(sep): -3681 if parse_result and self._prev_comments: -3682 parse_result.comments = self._prev_comments -3683 -3684 parse_result = parse_method() -3685 if parse_result is not None: -3686 items.append(parse_result) +3660 def _parse_id_var( +3661 self, +3662 any_token: bool = True, +3663 tokens: t.Optional[t.Collection[TokenType]] = None, +3664 prefix_tokens: t.Optional[t.Collection[TokenType]] = None, +3665 ) -> t.Optional[exp.Expression]: +3666 identifier = self._parse_identifier() +3667 +3668 if identifier: +3669 return identifier +3670 +3671 prefix = "" +3672 +3673 if prefix_tokens: +3674 while self._match_set(prefix_tokens): +3675 prefix += self._prev.text +3676 +3677 if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS): +3678 quoted = self._prev.token_type == TokenType.STRING +3679 return exp.Identifier(this=prefix + self._prev.text, quoted=quoted) +3680 +3681 return None +3682 +3683 def _parse_string(self) -> t.Optional[exp.Expression]: +3684 if self._match(TokenType.STRING): +3685 return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev) +3686 return self._parse_placeholder() 3687 -3688 return items -3689 -3690 def _parse_tokens( -3691 self, parse_method: t.Callable, expressions: t.Dict -3692 ) -> t.Optional[exp.Expression]: -3693 this = parse_method() -3694 -3695 while self._match_set(expressions): -3696 this = self.expression( -3697 expressions[self._prev.token_type], -3698 this=this, -3699 comments=self._prev_comments, -3700 expression=parse_method(), -3701 ) -3702 -3703 return this -3704 -3705 def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]: -3706 return self._parse_wrapped_csv(self._parse_id_var) -3707 -3708 def _parse_wrapped_csv( -3709 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA -3710 ) -> t.List[t.Optional[exp.Expression]]: -3711 return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep)) -3712 -3713 def _parse_wrapped(self, parse_method: t.Callable) -> t.Any: -3714 self._match_l_paren() -3715 parse_result = parse_method() -3716 self._match_r_paren() -3717 return parse_result -3718 -3719 def _parse_select_or_expression(self) -> t.Optional[exp.Expression]: -3720 return self._parse_select() or self._parse_set_operations(self._parse_expression()) -3721 -3722 def _parse_ddl_select(self) -> t.Optional[exp.Expression]: -3723 return self._parse_set_operations( -3724 self._parse_select(nested=True, parse_subquery_alias=False) -3725 ) -3726 -3727 def _parse_transaction(self) -> exp.Expression: -3728 this = None -3729 if self._match_texts(self.TRANSACTION_KIND): -3730 this = self._prev.text -3731 -3732 self._match_texts({"TRANSACTION", "WORK"}) -3733 -3734 modes = [] -3735 while True: -3736 mode = [] -3737 while self._match(TokenType.VAR): -3738 mode.append(self._prev.text) -3739 -3740 if mode: -3741 modes.append(" ".join(mode)) -3742 if not self._match(TokenType.COMMA): -3743 break -3744 -3745 return self.expression(exp.Transaction, this=this, modes=modes) -3746 -3747 def _parse_commit_or_rollback(self) -> exp.Expression: -3748 chain = None -3749 savepoint = None -3750 is_rollback = self._prev.token_type == TokenType.ROLLBACK +3688 def _parse_string_as_identifier(self) -> t.Optional[exp.Expression]: +3689 return exp.to_identifier(self._match(TokenType.STRING) and self._prev.text, quoted=True) +3690 +3691 def _parse_number(self) -> t.Optional[exp.Expression]: +3692 if self._match(TokenType.NUMBER): +3693 return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev) +3694 return self._parse_placeholder() +3695 +3696 def _parse_identifier(self) -> t.Optional[exp.Expression]: +3697 if self._match(TokenType.IDENTIFIER): +3698 return self.expression(exp.Identifier, this=self._prev.text, quoted=True) +3699 return self._parse_placeholder() +3700 +3701 def _parse_var( +3702 self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None +3703 ) -> t.Optional[exp.Expression]: +3704 if ( +3705 (any_token and self._advance_any()) +3706 or self._match(TokenType.VAR) +3707 or (self._match_set(tokens) if tokens else False) +3708 ): +3709 return self.expression(exp.Var, this=self._prev.text) +3710 return self._parse_placeholder() +3711 +3712 def _advance_any(self) -> t.Optional[Token]: +3713 if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS: +3714 self._advance() +3715 return self._prev +3716 return None +3717 +3718 def _parse_var_or_string(self) -> t.Optional[exp.Expression]: +3719 return self._parse_var() or self._parse_string() +3720 +3721 def _parse_null(self) -> t.Optional[exp.Expression]: +3722 if self._match(TokenType.NULL): +3723 return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev) +3724 return None +3725 +3726 def _parse_boolean(self) -> t.Optional[exp.Expression]: +3727 if self._match(TokenType.TRUE): +3728 return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev) +3729 if self._match(TokenType.FALSE): +3730 return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev) +3731 return None +3732 +3733 def _parse_star(self) -> t.Optional[exp.Expression]: +3734 if self._match(TokenType.STAR): +3735 return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev) +3736 return None +3737 +3738 def _parse_parameter(self) -> exp.Expression: +3739 wrapped = self._match(TokenType.L_BRACE) +3740 this = self._parse_var() or self._parse_primary() +3741 self._match(TokenType.R_BRACE) +3742 return self.expression(exp.Parameter, this=this, wrapped=wrapped) +3743 +3744 def _parse_placeholder(self) -> t.Optional[exp.Expression]: +3745 if self._match_set(self.PLACEHOLDER_PARSERS): +3746 placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self) +3747 if placeholder: +3748 return placeholder +3749 self._advance(-1) +3750 return None 3751 -3752 self._match_texts({"TRANSACTION", "WORK"}) -3753 -3754 if self._match_text_seq("TO"): -3755 self._match_text_seq("SAVEPOINT") -3756 savepoint = self._parse_id_var() -3757 -3758 if self._match(TokenType.AND): -3759 chain = not self._match_text_seq("NO") -3760 self._match_text_seq("CHAIN") -3761 -3762 if is_rollback: -3763 return self.expression(exp.Rollback, savepoint=savepoint) -3764 return self.expression(exp.Commit, chain=chain) +3752 def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3753 if not self._match(TokenType.EXCEPT): +3754 return None +3755 if self._match(TokenType.L_PAREN, advance=False): +3756 return self._parse_wrapped_csv(self._parse_column) +3757 return self._parse_csv(self._parse_column) +3758 +3759 def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3760 if not self._match(TokenType.REPLACE): +3761 return None +3762 if self._match(TokenType.L_PAREN, advance=False): +3763 return self._parse_wrapped_csv(self._parse_expression) +3764 return self._parse_csv(self._parse_expression) 3765 -3766 def _parse_add_column(self) -> t.Optional[exp.Expression]: -3767 if not self._match_text_seq("ADD"): -3768 return None -3769 -3770 self._match(TokenType.COLUMN) -3771 exists_column = self._parse_exists(not_=True) -3772 expression = self._parse_column_def(self._parse_field(any_token=True)) -3773 -3774 if expression: -3775 expression.set("exists", exists_column) -3776 -3777 return expression -3778 -3779 def _parse_drop_column(self) -> t.Optional[exp.Expression]: -3780 return self._match(TokenType.DROP) and self._parse_drop(default_kind="COLUMN") +3766 def _parse_csv( +3767 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA +3768 ) -> t.List[t.Optional[exp.Expression]]: +3769 parse_result = parse_method() +3770 items = [parse_result] if parse_result is not None else [] +3771 +3772 while self._match(sep): +3773 if parse_result and self._prev_comments: +3774 parse_result.comments = self._prev_comments +3775 +3776 parse_result = parse_method() +3777 if parse_result is not None: +3778 items.append(parse_result) +3779 +3780 return items 3781 -3782 # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html -3783 def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression: -3784 return self.expression( -3785 exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists -3786 ) -3787 -3788 def _parse_add_constraint(self) -> t.Optional[exp.Expression]: -3789 this = None -3790 kind = self._prev.token_type -3791 -3792 if kind == TokenType.CONSTRAINT: -3793 this = self._parse_id_var() +3782 def _parse_tokens( +3783 self, parse_method: t.Callable, expressions: t.Dict +3784 ) -> t.Optional[exp.Expression]: +3785 this = parse_method() +3786 +3787 while self._match_set(expressions): +3788 this = self.expression( +3789 expressions[self._prev.token_type], +3790 this=this, +3791 comments=self._prev_comments, +3792 expression=parse_method(), +3793 ) 3794 -3795 if self._match_text_seq("CHECK"): -3796 expression = self._parse_wrapped(self._parse_conjunction) -3797 enforced = self._match_text_seq("ENFORCED") -3798 -3799 return self.expression( -3800 exp.AddConstraint, this=this, expression=expression, enforced=enforced -3801 ) -3802 -3803 if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY): -3804 expression = self._parse_foreign_key() -3805 elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY): -3806 expression = self._parse_primary_key() -3807 -3808 return self.expression(exp.AddConstraint, this=this, expression=expression) -3809 -3810 def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]: -3811 index = self._index - 1 -3812 -3813 if self._match_set(self.ADD_CONSTRAINT_TOKENS): -3814 return self._parse_csv(self._parse_add_constraint) -3815 -3816 self._retreat(index) -3817 return self._parse_csv(self._parse_add_column) +3795 return this +3796 +3797 def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]: +3798 return self._parse_wrapped_csv(self._parse_id_var) +3799 +3800 def _parse_wrapped_csv( +3801 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA +3802 ) -> t.List[t.Optional[exp.Expression]]: +3803 return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep)) +3804 +3805 def _parse_wrapped(self, parse_method: t.Callable) -> t.Any: +3806 self._match_l_paren() +3807 parse_result = parse_method() +3808 self._match_r_paren() +3809 return parse_result +3810 +3811 def _parse_select_or_expression(self) -> t.Optional[exp.Expression]: +3812 return self._parse_select() or self._parse_set_operations(self._parse_expression()) +3813 +3814 def _parse_ddl_select(self) -> t.Optional[exp.Expression]: +3815 return self._parse_set_operations( +3816 self._parse_select(nested=True, parse_subquery_alias=False) +3817 ) 3818 -3819 def _parse_alter_table_alter(self) -> exp.Expression: -3820 self._match(TokenType.COLUMN) -3821 column = self._parse_field(any_token=True) -3822 -3823 if self._match_pair(TokenType.DROP, TokenType.DEFAULT): -3824 return self.expression(exp.AlterColumn, this=column, drop=True) -3825 if self._match_pair(TokenType.SET, TokenType.DEFAULT): -3826 return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction()) -3827 -3828 self._match_text_seq("SET", "DATA") -3829 return self.expression( -3830 exp.AlterColumn, -3831 this=column, -3832 dtype=self._match_text_seq("TYPE") and self._parse_types(), -3833 collate=self._match(TokenType.COLLATE) and self._parse_term(), -3834 using=self._match(TokenType.USING) and self._parse_conjunction(), -3835 ) +3819 def _parse_transaction(self) -> exp.Expression: +3820 this = None +3821 if self._match_texts(self.TRANSACTION_KIND): +3822 this = self._prev.text +3823 +3824 self._match_texts({"TRANSACTION", "WORK"}) +3825 +3826 modes = [] +3827 while True: +3828 mode = [] +3829 while self._match(TokenType.VAR): +3830 mode.append(self._prev.text) +3831 +3832 if mode: +3833 modes.append(" ".join(mode)) +3834 if not self._match(TokenType.COMMA): +3835 break 3836 -3837 def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]: -3838 index = self._index - 1 -3839 -3840 partition_exists = self._parse_exists() -3841 if self._match(TokenType.PARTITION, advance=False): -3842 return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists)) +3837 return self.expression(exp.Transaction, this=this, modes=modes) +3838 +3839 def _parse_commit_or_rollback(self) -> exp.Expression: +3840 chain = None +3841 savepoint = None +3842 is_rollback = self._prev.token_type == TokenType.ROLLBACK 3843 -3844 self._retreat(index) -3845 return self._parse_csv(self._parse_drop_column) -3846 -3847 def _parse_alter_table_rename(self) -> exp.Expression: -3848 self._match_text_seq("TO") -3849 return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) -3850 -3851 def _parse_alter(self) -> t.Optional[exp.Expression]: -3852 start = self._prev +3844 self._match_texts({"TRANSACTION", "WORK"}) +3845 +3846 if self._match_text_seq("TO"): +3847 self._match_text_seq("SAVEPOINT") +3848 savepoint = self._parse_id_var() +3849 +3850 if self._match(TokenType.AND): +3851 chain = not self._match_text_seq("NO") +3852 self._match_text_seq("CHAIN") 3853 -3854 if not self._match(TokenType.TABLE): -3855 return self._parse_as_command(start) -3856 -3857 exists = self._parse_exists() -3858 this = self._parse_table(schema=True) -3859 -3860 if self._next: -3861 self._advance() -3862 parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None -3863 -3864 if parser: -3865 return self.expression( -3866 exp.AlterTable, -3867 this=this, -3868 exists=exists, -3869 actions=ensure_list(parser(self)), -3870 ) -3871 return self._parse_as_command(start) -3872 -3873 def _parse_merge(self) -> exp.Expression: -3874 self._match(TokenType.INTO) -3875 target = self._parse_table() +3854 if is_rollback: +3855 return self.expression(exp.Rollback, savepoint=savepoint) +3856 return self.expression(exp.Commit, chain=chain) +3857 +3858 def _parse_add_column(self) -> t.Optional[exp.Expression]: +3859 if not self._match_text_seq("ADD"): +3860 return None +3861 +3862 self._match(TokenType.COLUMN) +3863 exists_column = self._parse_exists(not_=True) +3864 expression = self._parse_column_def(self._parse_field(any_token=True)) +3865 +3866 if expression: +3867 expression.set("exists", exists_column) +3868 +3869 # https://docs.databricks.com/delta/update-schema.html#explicitly-update-schema-to-add-columns +3870 if self._match_texts(("FIRST", "AFTER")): +3871 position = self._prev.text +3872 column_position = self.expression( +3873 exp.ColumnPosition, this=self._parse_column(), position=position +3874 ) +3875 expression.set("position", column_position) 3876 -3877 self._match(TokenType.USING) -3878 using = self._parse_table() -3879 -3880 self._match(TokenType.ON) -3881 on = self._parse_conjunction() -3882 -3883 whens = [] -3884 while self._match(TokenType.WHEN): -3885 matched = not self._match(TokenType.NOT) -3886 self._match_text_seq("MATCHED") -3887 source = ( -3888 False -3889 if self._match_text_seq("BY", "TARGET") -3890 else self._match_text_seq("BY", "SOURCE") -3891 ) -3892 condition = self._parse_conjunction() if self._match(TokenType.AND) else None -3893 -3894 self._match(TokenType.THEN) -3895 -3896 if self._match(TokenType.INSERT): -3897 _this = self._parse_star() -3898 if _this: -3899 then = self.expression(exp.Insert, this=_this) -3900 else: -3901 then = self.expression( -3902 exp.Insert, -3903 this=self._parse_value(), -3904 expression=self._match(TokenType.VALUES) and self._parse_value(), -3905 ) -3906 elif self._match(TokenType.UPDATE): -3907 expressions = self._parse_star() -3908 if expressions: -3909 then = self.expression(exp.Update, expressions=expressions) -3910 else: -3911 then = self.expression( -3912 exp.Update, -3913 expressions=self._match(TokenType.SET) -3914 and self._parse_csv(self._parse_equality), -3915 ) -3916 elif self._match(TokenType.DELETE): -3917 then = self.expression(exp.Var, this=self._prev.text) -3918 else: -3919 then = None +3877 return expression +3878 +3879 def _parse_drop_column(self) -> t.Optional[exp.Expression]: +3880 return self._match(TokenType.DROP) and self._parse_drop(default_kind="COLUMN") +3881 +3882 # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html +3883 def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression: +3884 return self.expression( +3885 exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists +3886 ) +3887 +3888 def _parse_add_constraint(self) -> t.Optional[exp.Expression]: +3889 this = None +3890 kind = self._prev.token_type +3891 +3892 if kind == TokenType.CONSTRAINT: +3893 this = self._parse_id_var() +3894 +3895 if self._match_text_seq("CHECK"): +3896 expression = self._parse_wrapped(self._parse_conjunction) +3897 enforced = self._match_text_seq("ENFORCED") +3898 +3899 return self.expression( +3900 exp.AddConstraint, this=this, expression=expression, enforced=enforced +3901 ) +3902 +3903 if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY): +3904 expression = self._parse_foreign_key() +3905 elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY): +3906 expression = self._parse_primary_key() +3907 else: +3908 expression = None +3909 +3910 return self.expression(exp.AddConstraint, this=this, expression=expression) +3911 +3912 def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]: +3913 index = self._index - 1 +3914 +3915 if self._match_set(self.ADD_CONSTRAINT_TOKENS): +3916 return self._parse_csv(self._parse_add_constraint) +3917 +3918 self._retreat(index) +3919 return self._parse_csv(self._parse_add_column) 3920 -3921 whens.append( -3922 self.expression( -3923 exp.When, -3924 matched=matched, -3925 source=source, -3926 condition=condition, -3927 then=then, -3928 ) -3929 ) -3930 +3921 def _parse_alter_table_alter(self) -> exp.Expression: +3922 self._match(TokenType.COLUMN) +3923 column = self._parse_field(any_token=True) +3924 +3925 if self._match_pair(TokenType.DROP, TokenType.DEFAULT): +3926 return self.expression(exp.AlterColumn, this=column, drop=True) +3927 if self._match_pair(TokenType.SET, TokenType.DEFAULT): +3928 return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction()) +3929 +3930 self._match_text_seq("SET", "DATA") 3931 return self.expression( -3932 exp.Merge, -3933 this=target, -3934 using=using, -3935 on=on, -3936 expressions=whens, +3932 exp.AlterColumn, +3933 this=column, +3934 dtype=self._match_text_seq("TYPE") and self._parse_types(), +3935 collate=self._match(TokenType.COLLATE) and self._parse_term(), +3936 using=self._match(TokenType.USING) and self._parse_conjunction(), 3937 ) 3938 -3939 def _parse_show(self) -> t.Optional[exp.Expression]: -3940 parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore -3941 if parser: -3942 return parser(self) -3943 self._advance() -3944 return self.expression(exp.Show, this=self._prev.text.upper()) +3939 def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]: +3940 index = self._index - 1 +3941 +3942 partition_exists = self._parse_exists() +3943 if self._match(TokenType.PARTITION, advance=False): +3944 return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists)) 3945 -3946 def _parse_set_item_assignment( -3947 self, kind: t.Optional[str] = None -3948 ) -> t.Optional[exp.Expression]: -3949 index = self._index -3950 -3951 if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"): -3952 return self._parse_set_transaction(global_=kind == "GLOBAL") -3953 -3954 left = self._parse_primary() or self._parse_id_var() +3946 self._retreat(index) +3947 return self._parse_csv(self._parse_drop_column) +3948 +3949 def _parse_alter_table_rename(self) -> exp.Expression: +3950 self._match_text_seq("TO") +3951 return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) +3952 +3953 def _parse_alter(self) -> t.Optional[exp.Expression]: +3954 start = self._prev 3955 -3956 if not self._match_texts(("=", "TO")): -3957 self._retreat(index) -3958 return None -3959 -3960 right = self._parse_statement() or self._parse_id_var() -3961 this = self.expression( -3962 exp.EQ, -3963 this=left, -3964 expression=right, -3965 ) -3966 -3967 return self.expression( -3968 exp.SetItem, -3969 this=this, -3970 kind=kind, -3971 ) -3972 -3973 def _parse_set_transaction(self, global_: bool = False) -> exp.Expression: -3974 self._match_text_seq("TRANSACTION") -3975 characteristics = self._parse_csv( -3976 lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS) -3977 ) -3978 return self.expression( -3979 exp.SetItem, -3980 expressions=characteristics, -3981 kind="TRANSACTION", -3982 **{"global": global_}, # type: ignore -3983 ) +3956 if not self._match(TokenType.TABLE): +3957 return self._parse_as_command(start) +3958 +3959 exists = self._parse_exists() +3960 this = self._parse_table(schema=True) +3961 +3962 if self._next: +3963 self._advance() +3964 parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None +3965 +3966 if parser: +3967 actions = ensure_list(parser(self)) +3968 +3969 if not self._curr: +3970 return self.expression( +3971 exp.AlterTable, +3972 this=this, +3973 exists=exists, +3974 actions=actions, +3975 ) +3976 return self._parse_as_command(start) +3977 +3978 def _parse_merge(self) -> exp.Expression: +3979 self._match(TokenType.INTO) +3980 target = self._parse_table() +3981 +3982 self._match(TokenType.USING) +3983 using = self._parse_table() 3984 -3985 def _parse_set_item(self) -> t.Optional[exp.Expression]: -3986 parser = self._find_parser(self.SET_PARSERS, self._set_trie) # type: ignore -3987 return parser(self) if parser else self._parse_set_item_assignment(kind=None) -3988 -3989 def _parse_set(self) -> exp.Expression: -3990 index = self._index -3991 set_ = self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item)) -3992 -3993 if self._curr: -3994 self._retreat(index) -3995 return self._parse_as_command(self._prev) -3996 -3997 return set_ +3985 self._match(TokenType.ON) +3986 on = self._parse_conjunction() +3987 +3988 whens = [] +3989 while self._match(TokenType.WHEN): +3990 matched = not self._match(TokenType.NOT) +3991 self._match_text_seq("MATCHED") +3992 source = ( +3993 False +3994 if self._match_text_seq("BY", "TARGET") +3995 else self._match_text_seq("BY", "SOURCE") +3996 ) +3997 condition = self._parse_conjunction() if self._match(TokenType.AND) else None 3998 -3999 def _parse_var_from_options(self, options: t.Collection[str]) -> t.Optional[exp.Expression]: -4000 for option in options: -4001 if self._match_text_seq(*option.split(" ")): -4002 return exp.Var(this=option) -4003 return None -4004 -4005 def _parse_as_command(self, start: Token) -> exp.Command: -4006 while self._curr: -4007 self._advance() -4008 text = self._find_sql(start, self._prev) -4009 size = len(start.text) -4010 return exp.Command(this=text[:size], expression=text[size:]) -4011 -4012 def _find_parser( -4013 self, parsers: t.Dict[str, t.Callable], trie: t.Dict -4014 ) -> t.Optional[t.Callable]: -4015 if not self._curr: -4016 return None -4017 -4018 index = self._index -4019 this = [] -4020 while True: -4021 # The current token might be multiple words -4022 curr = self._curr.text.upper() -4023 key = curr.split(" ") -4024 this.append(curr) -4025 self._advance() -4026 result, trie = in_trie(trie, key) -4027 if result == 0: -4028 break -4029 if result == 2: -4030 subparser = parsers[" ".join(this)] -4031 return subparser -4032 self._retreat(index) -4033 return None -4034 -4035 def _match(self, token_type, advance=True): -4036 if not self._curr: -4037 return None -4038 -4039 if self._curr.token_type == token_type: -4040 if advance: -4041 self._advance() -4042 return True +3999 self._match(TokenType.THEN) +4000 +4001 if self._match(TokenType.INSERT): +4002 _this = self._parse_star() +4003 if _this: +4004 then = self.expression(exp.Insert, this=_this) +4005 else: +4006 then = self.expression( +4007 exp.Insert, +4008 this=self._parse_value(), +4009 expression=self._match(TokenType.VALUES) and self._parse_value(), +4010 ) +4011 elif self._match(TokenType.UPDATE): +4012 expressions = self._parse_star() +4013 if expressions: +4014 then = self.expression(exp.Update, expressions=expressions) +4015 else: +4016 then = self.expression( +4017 exp.Update, +4018 expressions=self._match(TokenType.SET) +4019 and self._parse_csv(self._parse_equality), +4020 ) +4021 elif self._match(TokenType.DELETE): +4022 then = self.expression(exp.Var, this=self._prev.text) +4023 else: +4024 then = None +4025 +4026 whens.append( +4027 self.expression( +4028 exp.When, +4029 matched=matched, +4030 source=source, +4031 condition=condition, +4032 then=then, +4033 ) +4034 ) +4035 +4036 return self.expression( +4037 exp.Merge, +4038 this=target, +4039 using=using, +4040 on=on, +4041 expressions=whens, +4042 ) 4043 -4044 return None -4045 -4046 def _match_set(self, types, advance=True): -4047 if not self._curr: -4048 return None -4049 -4050 if self._curr.token_type in types: -4051 if advance: -4052 self._advance() -4053 return True -4054 -4055 return None -4056 -4057 def _match_pair(self, token_type_a, token_type_b, advance=True): -4058 if not self._curr or not self._next: -4059 return None +4044 def _parse_show(self) -> t.Optional[exp.Expression]: +4045 parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore +4046 if parser: +4047 return parser(self) +4048 self._advance() +4049 return self.expression(exp.Show, this=self._prev.text.upper()) +4050 +4051 def _parse_set_item_assignment( +4052 self, kind: t.Optional[str] = None +4053 ) -> t.Optional[exp.Expression]: +4054 index = self._index +4055 +4056 if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"): +4057 return self._parse_set_transaction(global_=kind == "GLOBAL") +4058 +4059 left = self._parse_primary() or self._parse_id_var() 4060 -4061 if self._curr.token_type == token_type_a and self._next.token_type == token_type_b: -4062 if advance: -4063 self._advance(2) -4064 return True -4065 -4066 return None -4067 -4068 def _match_l_paren(self, expression=None): -4069 if not self._match(TokenType.L_PAREN): -4070 self.raise_error("Expecting (") -4071 if expression and self._prev_comments: -4072 expression.comments = self._prev_comments -4073 -4074 def _match_r_paren(self, expression=None): -4075 if not self._match(TokenType.R_PAREN): -4076 self.raise_error("Expecting )") -4077 if expression and self._prev_comments: -4078 expression.comments = self._prev_comments -4079 -4080 def _match_texts(self, texts, advance=True): -4081 if self._curr and self._curr.text.upper() in texts: -4082 if advance: -4083 self._advance() -4084 return True -4085 return False -4086 -4087 def _match_text_seq(self, *texts, advance=True): -4088 index = self._index -4089 for text in texts: -4090 if self._curr and self._curr.text.upper() == text: -4091 self._advance() -4092 else: -4093 self._retreat(index) -4094 return False -4095 -4096 if not advance: -4097 self._retreat(index) -4098 -4099 return True -4100 -4101 def _replace_columns_with_dots(self, this): -4102 if isinstance(this, exp.Dot): -4103 exp.replace_children(this, self._replace_columns_with_dots) -4104 elif isinstance(this, exp.Column): -4105 exp.replace_children(this, self._replace_columns_with_dots) -4106 table = this.args.get("table") -4107 this = ( -4108 self.expression(exp.Dot, this=table, expression=this.this) -4109 if table -4110 else self.expression(exp.Var, this=this.name) -4111 ) -4112 elif isinstance(this, exp.Identifier): -4113 this = self.expression(exp.Var, this=this.name) -4114 return this -4115 -4116 def _replace_lambda(self, node, lambda_variables): -4117 for column in node.find_all(exp.Column): -4118 if column.parts[0].name in lambda_variables: -4119 dot_or_id = column.to_dot() if column.table else column.this -4120 parent = column.parent -4121 -4122 while isinstance(parent, exp.Dot): -4123 if not isinstance(parent.parent, exp.Dot): -4124 parent.replace(dot_or_id) -4125 break -4126 parent = parent.parent -4127 else: -4128 column.replace(dot_or_id) -4129 return node +4061 if not self._match_texts(("=", "TO")): +4062 self._retreat(index) +4063 return None +4064 +4065 right = self._parse_statement() or self._parse_id_var() +4066 this = self.expression( +4067 exp.EQ, +4068 this=left, +4069 expression=right, +4070 ) +4071 +4072 return self.expression( +4073 exp.SetItem, +4074 this=this, +4075 kind=kind, +4076 ) +4077 +4078 def _parse_set_transaction(self, global_: bool = False) -> exp.Expression: +4079 self._match_text_seq("TRANSACTION") +4080 characteristics = self._parse_csv( +4081 lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS) +4082 ) +4083 return self.expression( +4084 exp.SetItem, +4085 expressions=characteristics, +4086 kind="TRANSACTION", +4087 **{"global": global_}, # type: ignore +4088 ) +4089 +4090 def _parse_set_item(self) -> t.Optional[exp.Expression]: +4091 parser = self._find_parser(self.SET_PARSERS, self._set_trie) # type: ignore +4092 return parser(self) if parser else self._parse_set_item_assignment(kind=None) +4093 +4094 def _parse_set(self) -> exp.Expression: +4095 index = self._index +4096 set_ = self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item)) +4097 +4098 if self._curr: +4099 self._retreat(index) +4100 return self._parse_as_command(self._prev) +4101 +4102 return set_ +4103 +4104 def _parse_var_from_options(self, options: t.Collection[str]) -> t.Optional[exp.Expression]: +4105 for option in options: +4106 if self._match_text_seq(*option.split(" ")): +4107 return exp.Var(this=option) +4108 return None +4109 +4110 def _parse_as_command(self, start: Token) -> exp.Command: +4111 while self._curr: +4112 self._advance() +4113 text = self._find_sql(start, self._prev) +4114 size = len(start.text) +4115 return exp.Command(this=text[:size], expression=text[size:]) +4116 +4117 def _find_parser( +4118 self, parsers: t.Dict[str, t.Callable], trie: t.Dict +4119 ) -> t.Optional[t.Callable]: +4120 if not self._curr: +4121 return None +4122 +4123 index = self._index +4124 this = [] +4125 while True: +4126 # The current token might be multiple words +4127 curr = self._curr.text.upper() +4128 key = curr.split(" ") +4129 this.append(curr) +4130 self._advance() +4131 result, trie = in_trie(trie, key) +4132 if result == 0: +4133 break +4134 if result == 2: +4135 subparser = parsers[" ".join(this)] +4136 return subparser +4137 self._retreat(index) +4138 return None +4139 +4140 def _match(self, token_type, advance=True): +4141 if not self._curr: +4142 return None +4143 +4144 if self._curr.token_type == token_type: +4145 if advance: +4146 self._advance() +4147 return True +4148 +4149 return None +4150 +4151 def _match_set(self, types, advance=True): +4152 if not self._curr: +4153 return None +4154 +4155 if self._curr.token_type in types: +4156 if advance: +4157 self._advance() +4158 return True +4159 +4160 return None +4161 +4162 def _match_pair(self, token_type_a, token_type_b, advance=True): +4163 if not self._curr or not self._next: +4164 return None +4165 +4166 if self._curr.token_type == token_type_a and self._next.token_type == token_type_b: +4167 if advance: +4168 self._advance(2) +4169 return True +4170 +4171 return None +4172 +4173 def _match_l_paren(self, expression=None): +4174 if not self._match(TokenType.L_PAREN): +4175 self.raise_error("Expecting (") +4176 if expression and self._prev_comments: +4177 expression.comments = self._prev_comments +4178 +4179 def _match_r_paren(self, expression=None): +4180 if not self._match(TokenType.R_PAREN): +4181 self.raise_error("Expecting )") +4182 if expression and self._prev_comments: +4183 expression.comments = self._prev_comments +4184 +4185 def _match_texts(self, texts, advance=True): +4186 if self._curr and self._curr.text.upper() in texts: +4187 if advance: +4188 self._advance() +4189 return True +4190 return False +4191 +4192 def _match_text_seq(self, *texts, advance=True): +4193 index = self._index +4194 for text in texts: +4195 if self._curr and self._curr.text.upper() == text: +4196 self._advance() +4197 else: +4198 self._retreat(index) +4199 return False +4200 +4201 if not advance: +4202 self._retreat(index) +4203 +4204 return True +4205 +4206 def _replace_columns_with_dots(self, this): +4207 if isinstance(this, exp.Dot): +4208 exp.replace_children(this, self._replace_columns_with_dots) +4209 elif isinstance(this, exp.Column): +4210 exp.replace_children(this, self._replace_columns_with_dots) +4211 table = this.args.get("table") +4212 this = ( +4213 self.expression(exp.Dot, this=table, expression=this.this) +4214 if table +4215 else self.expression(exp.Var, this=this.name) +4216 ) +4217 elif isinstance(this, exp.Identifier): +4218 this = self.expression(exp.Var, this=this.name) +4219 return this +4220 +4221 def _replace_lambda(self, node, lambda_variables): +4222 for column in node.find_all(exp.Column): +4223 if column.parts[0].name in lambda_variables: +4224 dot_or_id = column.to_dot() if column.table else column.this +4225 parent = column.parent +4226 +4227 while isinstance(parent, exp.Dot): +4228 if not isinstance(parent.parent, exp.Dot): +4229 parent.replace(dot_or_id) +4230 break +4231 parent = parent.parent +4232 else: +4233 column.replace(dot_or_id) +4234 return node @@ -8416,24 +8626,24 @@ Default: "nulls_are_small" -
    757    def __init__(
    -758        self,
    -759        error_level: t.Optional[ErrorLevel] = None,
    -760        error_message_context: int = 100,
    -761        index_offset: int = 0,
    -762        unnest_column_only: bool = False,
    -763        alias_post_tablesample: bool = False,
    -764        max_errors: int = 3,
    -765        null_ordering: t.Optional[str] = None,
    -766    ):
    -767        self.error_level = error_level or ErrorLevel.IMMEDIATE
    -768        self.error_message_context = error_message_context
    -769        self.index_offset = index_offset
    -770        self.unnest_column_only = unnest_column_only
    -771        self.alias_post_tablesample = alias_post_tablesample
    -772        self.max_errors = max_errors
    -773        self.null_ordering = null_ordering
    -774        self.reset()
    +            
    763    def __init__(
    +764        self,
    +765        error_level: t.Optional[ErrorLevel] = None,
    +766        error_message_context: int = 100,
    +767        index_offset: int = 0,
    +768        unnest_column_only: bool = False,
    +769        alias_post_tablesample: bool = False,
    +770        max_errors: int = 3,
    +771        null_ordering: t.Optional[str] = None,
    +772    ):
    +773        self.error_level = error_level or ErrorLevel.IMMEDIATE
    +774        self.error_message_context = error_message_context
    +775        self.index_offset = index_offset
    +776        self.unnest_column_only = unnest_column_only
    +777        self.alias_post_tablesample = alias_post_tablesample
    +778        self.max_errors = max_errors
    +779        self.null_ordering = null_ordering
    +780        self.reset()
     
    @@ -8451,15 +8661,15 @@ Default: "nulls_are_small"
    -
    776    def reset(self):
    -777        self.sql = ""
    -778        self.errors = []
    -779        self._tokens = []
    -780        self._index = 0
    -781        self._curr = None
    -782        self._next = None
    -783        self._prev = None
    -784        self._prev_comments = None
    +            
    782    def reset(self):
    +783        self.sql = ""
    +784        self.errors = []
    +785        self._tokens = []
    +786        self._index = 0
    +787        self._curr = None
    +788        self._next = None
    +789        self._prev = None
    +790        self._prev_comments = None
     
    @@ -8477,23 +8687,23 @@ Default: "nulls_are_small"
    -
    786    def parse(
    -787        self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
    -788    ) -> t.List[t.Optional[exp.Expression]]:
    -789        """
    -790        Parses a list of tokens and returns a list of syntax trees, one tree
    -791        per parsed SQL statement.
    -792
    -793        Args:
    -794            raw_tokens: the list of tokens.
    -795            sql: the original SQL string, used to produce helpful debug messages.
    -796
    -797        Returns:
    -798            The list of syntax trees.
    -799        """
    -800        return self._parse(
    -801            parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql
    -802        )
    +            
    792    def parse(
    +793        self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
    +794    ) -> t.List[t.Optional[exp.Expression]]:
    +795        """
    +796        Parses a list of tokens and returns a list of syntax trees, one tree
    +797        per parsed SQL statement.
    +798
    +799        Args:
    +800            raw_tokens: the list of tokens.
    +801            sql: the original SQL string, used to produce helpful debug messages.
    +802
    +803        Returns:
    +804            The list of syntax trees.
    +805        """
    +806        return self._parse(
    +807            parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql
    +808        )
     
    @@ -8527,39 +8737,39 @@ per parsed SQL statement.

    -
    804    def parse_into(
    -805        self,
    -806        expression_types: exp.IntoType,
    -807        raw_tokens: t.List[Token],
    -808        sql: t.Optional[str] = None,
    -809    ) -> t.List[t.Optional[exp.Expression]]:
    -810        """
    -811        Parses a list of tokens into a given Expression type. If a collection of Expression
    -812        types is given instead, this method will try to parse the token list into each one
    -813        of them, stopping at the first for which the parsing succeeds.
    -814
    -815        Args:
    -816            expression_types: the expression type(s) to try and parse the token list into.
    -817            raw_tokens: the list of tokens.
    -818            sql: the original SQL string, used to produce helpful debug messages.
    -819
    -820        Returns:
    -821            The target Expression.
    -822        """
    -823        errors = []
    -824        for expression_type in ensure_collection(expression_types):
    -825            parser = self.EXPRESSION_PARSERS.get(expression_type)
    -826            if not parser:
    -827                raise TypeError(f"No parser registered for {expression_type}")
    -828            try:
    -829                return self._parse(parser, raw_tokens, sql)
    -830            except ParseError as e:
    -831                e.errors[0]["into_expression"] = expression_type
    -832                errors.append(e)
    -833        raise ParseError(
    -834            f"Failed to parse into {expression_types}",
    -835            errors=merge_errors(errors),
    -836        ) from errors[-1]
    +            
    810    def parse_into(
    +811        self,
    +812        expression_types: exp.IntoType,
    +813        raw_tokens: t.List[Token],
    +814        sql: t.Optional[str] = None,
    +815    ) -> t.List[t.Optional[exp.Expression]]:
    +816        """
    +817        Parses a list of tokens into a given Expression type. If a collection of Expression
    +818        types is given instead, this method will try to parse the token list into each one
    +819        of them, stopping at the first for which the parsing succeeds.
    +820
    +821        Args:
    +822            expression_types: the expression type(s) to try and parse the token list into.
    +823            raw_tokens: the list of tokens.
    +824            sql: the original SQL string, used to produce helpful debug messages.
    +825
    +826        Returns:
    +827            The target Expression.
    +828        """
    +829        errors = []
    +830        for expression_type in ensure_collection(expression_types):
    +831            parser = self.EXPRESSION_PARSERS.get(expression_type)
    +832            if not parser:
    +833                raise TypeError(f"No parser registered for {expression_type}")
    +834            try:
    +835                return self._parse(parser, raw_tokens, sql)
    +836            except ParseError as e:
    +837                e.errors[0]["into_expression"] = expression_type
    +838                errors.append(e)
    +839        raise ParseError(
    +840            f"Failed to parse into {expression_types}",
    +841            errors=merge_errors(errors),
    +842        ) from errors[-1]
     
    @@ -8595,18 +8805,18 @@ of them, stopping at the first for which the parsing succeeds.

    -
    872    def check_errors(self) -> None:
    -873        """
    -874        Logs or raises any found errors, depending on the chosen error level setting.
    -875        """
    -876        if self.error_level == ErrorLevel.WARN:
    -877            for error in self.errors:
    -878                logger.error(str(error))
    -879        elif self.error_level == ErrorLevel.RAISE and self.errors:
    -880            raise ParseError(
    -881                concat_messages(self.errors, self.max_errors),
    -882                errors=merge_errors(self.errors),
    -883            )
    +            
    878    def check_errors(self) -> None:
    +879        """
    +880        Logs or raises any found errors, depending on the chosen error level setting.
    +881        """
    +882        if self.error_level == ErrorLevel.WARN:
    +883            for error in self.errors:
    +884                logger.error(str(error))
    +885        elif self.error_level == ErrorLevel.RAISE and self.errors:
    +886            raise ParseError(
    +887                concat_messages(self.errors, self.max_errors),
    +888                errors=merge_errors(self.errors),
    +889            )
     
    @@ -8626,33 +8836,33 @@ of them, stopping at the first for which the parsing succeeds.

    -
    885    def raise_error(self, message: str, token: t.Optional[Token] = None) -> None:
    -886        """
    -887        Appends an error in the list of recorded errors or raises it, depending on the chosen
    -888        error level setting.
    -889        """
    -890        token = token or self._curr or self._prev or Token.string("")
    -891        start = self._find_token(token)
    -892        end = start + len(token.text)
    -893        start_context = self.sql[max(start - self.error_message_context, 0) : start]
    -894        highlight = self.sql[start:end]
    -895        end_context = self.sql[end : end + self.error_message_context]
    -896
    -897        error = ParseError.new(
    -898            f"{message}. Line {token.line}, Col: {token.col}.\n"
    -899            f"  {start_context}\033[4m{highlight}\033[0m{end_context}",
    -900            description=message,
    -901            line=token.line,
    -902            col=token.col,
    -903            start_context=start_context,
    -904            highlight=highlight,
    -905            end_context=end_context,
    -906        )
    -907
    -908        if self.error_level == ErrorLevel.IMMEDIATE:
    -909            raise error
    -910
    -911        self.errors.append(error)
    +            
    891    def raise_error(self, message: str, token: t.Optional[Token] = None) -> None:
    +892        """
    +893        Appends an error in the list of recorded errors or raises it, depending on the chosen
    +894        error level setting.
    +895        """
    +896        token = token or self._curr or self._prev or Token.string("")
    +897        start = self._find_token(token)
    +898        end = start + len(token.text)
    +899        start_context = self.sql[max(start - self.error_message_context, 0) : start]
    +900        highlight = self.sql[start:end]
    +901        end_context = self.sql[end : end + self.error_message_context]
    +902
    +903        error = ParseError.new(
    +904            f"{message}. Line {token.line}, Col: {token.col}.\n"
    +905            f"  {start_context}\033[4m{highlight}\033[0m{end_context}",
    +906            description=message,
    +907            line=token.line,
    +908            col=token.col,
    +909            start_context=start_context,
    +910            highlight=highlight,
    +911            end_context=end_context,
    +912        )
    +913
    +914        if self.error_level == ErrorLevel.IMMEDIATE:
    +915            raise error
    +916
    +917        self.errors.append(error)
     
    @@ -8673,28 +8883,28 @@ error level setting.

    -
    913    def expression(
    -914        self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs
    -915    ) -> exp.Expression:
    -916        """
    -917        Creates a new, validated Expression.
    -918
    -919        Args:
    -920            exp_class: the expression class to instantiate.
    -921            comments: an optional list of comments to attach to the expression.
    -922            kwargs: the arguments to set for the expression along with their respective values.
    -923
    -924        Returns:
    -925            The target expression.
    -926        """
    -927        instance = exp_class(**kwargs)
    -928        if self._prev_comments:
    -929            instance.comments = self._prev_comments
    -930            self._prev_comments = None
    -931        if comments:
    -932            instance.comments = comments
    -933        self.validate_expression(instance)
    -934        return instance
    +            
    919    def expression(
    +920        self, exp_class: t.Type[exp.Expression], comments: t.Optional[t.List[str]] = None, **kwargs
    +921    ) -> exp.Expression:
    +922        """
    +923        Creates a new, validated Expression.
    +924
    +925        Args:
    +926            exp_class: the expression class to instantiate.
    +927            comments: an optional list of comments to attach to the expression.
    +928            kwargs: the arguments to set for the expression along with their respective values.
    +929
    +930        Returns:
    +931            The target expression.
    +932        """
    +933        instance = exp_class(**kwargs)
    +934        if self._prev_comments:
    +935            instance.comments = self._prev_comments
    +936            self._prev_comments = None
    +937        if comments:
    +938            instance.comments = comments
    +939        self.validate_expression(instance)
    +940        return instance
     
    @@ -8728,22 +8938,22 @@ error level setting.

    -
    936    def validate_expression(
    -937        self, expression: exp.Expression, args: t.Optional[t.List] = None
    -938    ) -> None:
    -939        """
    -940        Validates an already instantiated expression, making sure that all its mandatory arguments
    -941        are set.
    -942
    -943        Args:
    -944            expression: the expression to validate.
    -945            args: an optional list of items that was used to instantiate the expression, if it's a Func.
    -946        """
    -947        if self.error_level == ErrorLevel.IGNORE:
    -948            return
    -949
    -950        for error_message in expression.error_messages(args):
    -951            self.raise_error(error_message)
    +            
    942    def validate_expression(
    +943        self, expression: exp.Expression, args: t.Optional[t.List] = None
    +944    ) -> None:
    +945        """
    +946        Validates an already instantiated expression, making sure that all its mandatory arguments
    +947        are set.
    +948
    +949        Args:
    +950            expression: the expression to validate.
    +951            args: an optional list of items that was used to instantiate the expression, if it's a Func.
    +952        """
    +953        if self.error_level == ErrorLevel.IGNORE:
    +954            return
    +955
    +956        for error_message in expression.error_messages(args):
    +957            self.raise_error(error_message)
     
    diff --git a/docs/sqlglot/planner.html b/docs/sqlglot/planner.html index 6ea09b9..548482e 100644 --- a/docs/sqlglot/planner.html +++ b/docs/sqlglot/planner.html @@ -3,7 +3,7 @@ - + sqlglot.planner API documentation diff --git a/docs/sqlglot/schema.html b/docs/sqlglot/schema.html index 4875378..50b2ce3 100644 --- a/docs/sqlglot/schema.html +++ b/docs/sqlglot/schema.html @@ -3,7 +3,7 @@ - + sqlglot.schema API documentation diff --git a/docs/sqlglot/serde.html b/docs/sqlglot/serde.html index 376bc97..7bf1af9 100644 --- a/docs/sqlglot/serde.html +++ b/docs/sqlglot/serde.html @@ -3,7 +3,7 @@ - + sqlglot.serde API documentation diff --git a/docs/sqlglot/time.html b/docs/sqlglot/time.html index 51efe98..4bde0b9 100644 --- a/docs/sqlglot/time.html +++ b/docs/sqlglot/time.html @@ -3,7 +3,7 @@ - + sqlglot.time API documentation diff --git a/docs/sqlglot/tokens.html b/docs/sqlglot/tokens.html index 5ec83ff..4ea9bdf 100644 --- a/docs/sqlglot/tokens.html +++ b/docs/sqlglot/tokens.html @@ -3,7 +3,7 @@ - + sqlglot.tokens API documentation @@ -1890,7 +1890,7 @@
    908 909 if not word: 910 if self._char in self.SINGLE_TOKENS: - 911 self._add(self.SINGLE_TOKENS[self._char]) # type: ignore + 911 self._add(self.SINGLE_TOKENS[self._char], text=self._char) # type: ignore 912 return 913 self._scan_var() 914 return @@ -1903,217 +1903,218 @@ 921 return 922 923 self._advance(size - 1) - 924 self._add(self.KEYWORDS[word.upper()]) - 925 - 926 def _scan_comment(self, comment_start: str) -> bool: - 927 if comment_start not in self._COMMENTS: # type: ignore - 928 return False - 929 - 930 comment_start_line = self._line - 931 comment_start_size = len(comment_start) - 932 comment_end = self._COMMENTS[comment_start] # type: ignore - 933 - 934 if comment_end: - 935 comment_end_size = len(comment_end) - 936 - 937 while not self._end and self._chars(comment_end_size) != comment_end: - 938 self._advance() - 939 - 940 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) # type: ignore - 941 self._advance(comment_end_size - 1) - 942 else: - 943 while not self._end and not self.WHITE_SPACE.get(self._peek) is TokenType.BREAK: - 944 self._advance() - 945 self._comments.append(self._text[comment_start_size:]) # type: ignore - 946 - 947 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. - 948 # Multiple consecutive comments are preserved by appending them to the current comments list. - 949 if comment_start_line == self._prev_token_line: - 950 self.tokens[-1].comments.extend(self._comments) - 951 self._comments = [] - 952 self._prev_token_line = self._line - 953 - 954 return True - 955 - 956 def _scan_number(self) -> None: - 957 if self._char == "0": - 958 peek = self._peek.upper() # type: ignore - 959 if peek == "B": - 960 return self._scan_bits() - 961 elif peek == "X": - 962 return self._scan_hex() - 963 - 964 decimal = False - 965 scientific = 0 - 966 - 967 while True: - 968 if self._peek.isdigit(): # type: ignore - 969 self._advance() - 970 elif self._peek == "." and not decimal: - 971 decimal = True - 972 self._advance() - 973 elif self._peek in ("-", "+") and scientific == 1: - 974 scientific += 1 - 975 self._advance() - 976 elif self._peek.upper() == "E" and not scientific: # type: ignore - 977 scientific += 1 - 978 self._advance() - 979 elif self._peek.isidentifier(): # type: ignore - 980 number_text = self._text - 981 literal = [] - 982 - 983 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: # type: ignore - 984 literal.append(self._peek.upper()) # type: ignore - 985 self._advance() - 986 - 987 literal = "".join(literal) # type: ignore - 988 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal)) # type: ignore - 989 - 990 if token_type: - 991 self._add(TokenType.NUMBER, number_text) - 992 self._add(TokenType.DCOLON, "::") - 993 return self._add(token_type, literal) # type: ignore - 994 elif self.IDENTIFIER_CAN_START_WITH_DIGIT: - 995 return self._add(TokenType.VAR) - 996 - 997 self._add(TokenType.NUMBER, number_text) - 998 return self._advance(-len(literal)) - 999 else: -1000 return self._add(TokenType.NUMBER) -1001 -1002 def _scan_bits(self) -> None: -1003 self._advance() -1004 value = self._extract_value() -1005 try: -1006 self._add(TokenType.BIT_STRING, f"{int(value, 2)}") -1007 except ValueError: -1008 self._add(TokenType.IDENTIFIER) -1009 -1010 def _scan_hex(self) -> None: -1011 self._advance() -1012 value = self._extract_value() -1013 try: -1014 self._add(TokenType.HEX_STRING, f"{int(value, 16)}") -1015 except ValueError: -1016 self._add(TokenType.IDENTIFIER) -1017 -1018 def _extract_value(self) -> str: -1019 while True: -1020 char = self._peek.strip() # type: ignore -1021 if char and char not in self.SINGLE_TOKENS: -1022 self._advance() -1023 else: -1024 break -1025 -1026 return self._text -1027 -1028 def _scan_string(self, quote: str) -> bool: -1029 quote_end = self._QUOTES.get(quote) # type: ignore -1030 if quote_end is None: -1031 return False -1032 -1033 self._advance(len(quote)) -1034 text = self._extract_string(quote_end) -1035 text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text # type: ignore -1036 self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text) -1037 return True -1038 -1039 # X'1234, b'0110', E'\\\\\' etc. -1040 def _scan_formatted_string(self, string_start: str) -> bool: -1041 if string_start in self._HEX_STRINGS: # type: ignore -1042 delimiters = self._HEX_STRINGS # type: ignore -1043 token_type = TokenType.HEX_STRING -1044 base = 16 -1045 elif string_start in self._BIT_STRINGS: # type: ignore -1046 delimiters = self._BIT_STRINGS # type: ignore -1047 token_type = TokenType.BIT_STRING -1048 base = 2 -1049 elif string_start in self._BYTE_STRINGS: # type: ignore -1050 delimiters = self._BYTE_STRINGS # type: ignore -1051 token_type = TokenType.BYTE_STRING -1052 base = None -1053 else: -1054 return False -1055 -1056 self._advance(len(string_start)) -1057 string_end = delimiters.get(string_start) -1058 text = self._extract_string(string_end) -1059 -1060 if base is None: -1061 self._add(token_type, text) -1062 else: -1063 try: -1064 self._add(token_type, f"{int(text, base)}") -1065 except: -1066 raise RuntimeError( -1067 f"Numeric string contains invalid characters from {self._line}:{self._start}" -1068 ) -1069 -1070 return True -1071 -1072 def _scan_identifier(self, identifier_end: str) -> None: -1073 text = "" -1074 identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES -1075 -1076 while True: -1077 if self._end: -1078 raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}") -1079 -1080 self._advance() -1081 if self._char == identifier_end: -1082 if identifier_end_is_escape and self._peek == identifier_end: -1083 text += identifier_end # type: ignore -1084 self._advance() -1085 continue -1086 -1087 break -1088 -1089 text += self._char # type: ignore -1090 -1091 self._add(TokenType.IDENTIFIER, text) -1092 -1093 def _scan_var(self) -> None: -1094 while True: -1095 char = self._peek.strip() # type: ignore -1096 if char and char not in self.SINGLE_TOKENS: -1097 self._advance() -1098 else: -1099 break -1100 self._add( -1101 TokenType.VAR -1102 if self._prev_token_type == TokenType.PARAMETER -1103 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) -1104 ) -1105 -1106 def _extract_string(self, delimiter: str) -> str: -1107 text = "" -1108 delim_size = len(delimiter) -1109 -1110 while True: -1111 if self._char in self._STRING_ESCAPES and ( -1112 self._peek == delimiter or self._peek in self._STRING_ESCAPES -1113 ): -1114 if self._peek == delimiter: -1115 text += self._peek # type: ignore -1116 else: -1117 text += self._char + self._peek # type: ignore -1118 -1119 if self._current + 1 < self.size: -1120 self._advance(2) -1121 else: -1122 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}") -1123 else: -1124 if self._chars(delim_size) == delimiter: -1125 if delim_size > 1: -1126 self._advance(delim_size - 1) -1127 break -1128 -1129 if self._end: -1130 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}") -1131 text += self._char # type: ignore -1132 self._advance() -1133 -1134 return text + 924 word = word.upper() + 925 self._add(self.KEYWORDS[word], text=word) + 926 + 927 def _scan_comment(self, comment_start: str) -> bool: + 928 if comment_start not in self._COMMENTS: # type: ignore + 929 return False + 930 + 931 comment_start_line = self._line + 932 comment_start_size = len(comment_start) + 933 comment_end = self._COMMENTS[comment_start] # type: ignore + 934 + 935 if comment_end: + 936 comment_end_size = len(comment_end) + 937 + 938 while not self._end and self._chars(comment_end_size) != comment_end: + 939 self._advance() + 940 + 941 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) # type: ignore + 942 self._advance(comment_end_size - 1) + 943 else: + 944 while not self._end and not self.WHITE_SPACE.get(self._peek) is TokenType.BREAK: + 945 self._advance() + 946 self._comments.append(self._text[comment_start_size:]) # type: ignore + 947 + 948 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. + 949 # Multiple consecutive comments are preserved by appending them to the current comments list. + 950 if comment_start_line == self._prev_token_line or self._end: + 951 self.tokens[-1].comments.extend(self._comments) + 952 self._comments = [] + 953 self._prev_token_line = self._line + 954 + 955 return True + 956 + 957 def _scan_number(self) -> None: + 958 if self._char == "0": + 959 peek = self._peek.upper() # type: ignore + 960 if peek == "B": + 961 return self._scan_bits() + 962 elif peek == "X": + 963 return self._scan_hex() + 964 + 965 decimal = False + 966 scientific = 0 + 967 + 968 while True: + 969 if self._peek.isdigit(): # type: ignore + 970 self._advance() + 971 elif self._peek == "." and not decimal: + 972 decimal = True + 973 self._advance() + 974 elif self._peek in ("-", "+") and scientific == 1: + 975 scientific += 1 + 976 self._advance() + 977 elif self._peek.upper() == "E" and not scientific: # type: ignore + 978 scientific += 1 + 979 self._advance() + 980 elif self._peek.isidentifier(): # type: ignore + 981 number_text = self._text + 982 literal = [] + 983 + 984 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: # type: ignore + 985 literal.append(self._peek.upper()) # type: ignore + 986 self._advance() + 987 + 988 literal = "".join(literal) # type: ignore + 989 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal)) # type: ignore + 990 + 991 if token_type: + 992 self._add(TokenType.NUMBER, number_text) + 993 self._add(TokenType.DCOLON, "::") + 994 return self._add(token_type, literal) # type: ignore + 995 elif self.IDENTIFIER_CAN_START_WITH_DIGIT: + 996 return self._add(TokenType.VAR) + 997 + 998 self._add(TokenType.NUMBER, number_text) + 999 return self._advance(-len(literal)) +1000 else: +1001 return self._add(TokenType.NUMBER) +1002 +1003 def _scan_bits(self) -> None: +1004 self._advance() +1005 value = self._extract_value() +1006 try: +1007 self._add(TokenType.BIT_STRING, f"{int(value, 2)}") +1008 except ValueError: +1009 self._add(TokenType.IDENTIFIER) +1010 +1011 def _scan_hex(self) -> None: +1012 self._advance() +1013 value = self._extract_value() +1014 try: +1015 self._add(TokenType.HEX_STRING, f"{int(value, 16)}") +1016 except ValueError: +1017 self._add(TokenType.IDENTIFIER) +1018 +1019 def _extract_value(self) -> str: +1020 while True: +1021 char = self._peek.strip() # type: ignore +1022 if char and char not in self.SINGLE_TOKENS: +1023 self._advance() +1024 else: +1025 break +1026 +1027 return self._text +1028 +1029 def _scan_string(self, quote: str) -> bool: +1030 quote_end = self._QUOTES.get(quote) # type: ignore +1031 if quote_end is None: +1032 return False +1033 +1034 self._advance(len(quote)) +1035 text = self._extract_string(quote_end) +1036 text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text # type: ignore +1037 self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text) +1038 return True +1039 +1040 # X'1234, b'0110', E'\\\\\' etc. +1041 def _scan_formatted_string(self, string_start: str) -> bool: +1042 if string_start in self._HEX_STRINGS: # type: ignore +1043 delimiters = self._HEX_STRINGS # type: ignore +1044 token_type = TokenType.HEX_STRING +1045 base = 16 +1046 elif string_start in self._BIT_STRINGS: # type: ignore +1047 delimiters = self._BIT_STRINGS # type: ignore +1048 token_type = TokenType.BIT_STRING +1049 base = 2 +1050 elif string_start in self._BYTE_STRINGS: # type: ignore +1051 delimiters = self._BYTE_STRINGS # type: ignore +1052 token_type = TokenType.BYTE_STRING +1053 base = None +1054 else: +1055 return False +1056 +1057 self._advance(len(string_start)) +1058 string_end = delimiters.get(string_start) +1059 text = self._extract_string(string_end) +1060 +1061 if base is None: +1062 self._add(token_type, text) +1063 else: +1064 try: +1065 self._add(token_type, f"{int(text, base)}") +1066 except: +1067 raise RuntimeError( +1068 f"Numeric string contains invalid characters from {self._line}:{self._start}" +1069 ) +1070 +1071 return True +1072 +1073 def _scan_identifier(self, identifier_end: str) -> None: +1074 text = "" +1075 identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES +1076 +1077 while True: +1078 if self._end: +1079 raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}") +1080 +1081 self._advance() +1082 if self._char == identifier_end: +1083 if identifier_end_is_escape and self._peek == identifier_end: +1084 text += identifier_end # type: ignore +1085 self._advance() +1086 continue +1087 +1088 break +1089 +1090 text += self._char # type: ignore +1091 +1092 self._add(TokenType.IDENTIFIER, text) +1093 +1094 def _scan_var(self) -> None: +1095 while True: +1096 char = self._peek.strip() # type: ignore +1097 if char and char not in self.SINGLE_TOKENS: +1098 self._advance() +1099 else: +1100 break +1101 self._add( +1102 TokenType.VAR +1103 if self._prev_token_type == TokenType.PARAMETER +1104 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) +1105 ) +1106 +1107 def _extract_string(self, delimiter: str) -> str: +1108 text = "" +1109 delim_size = len(delimiter) +1110 +1111 while True: +1112 if self._char in self._STRING_ESCAPES and ( +1113 self._peek == delimiter or self._peek in self._STRING_ESCAPES +1114 ): +1115 if self._peek == delimiter: +1116 text += self._peek # type: ignore +1117 else: +1118 text += self._char + self._peek # type: ignore +1119 +1120 if self._current + 1 < self.size: +1121 self._advance(2) +1122 else: +1123 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}") +1124 else: +1125 if self._chars(delim_size) == delimiter: +1126 if delim_size > 1: +1127 self._advance(delim_size - 1) +1128 break +1129 +1130 if self._end: +1131 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}") +1132 text += self._char # type: ignore +1133 self._advance() +1134 +1135 return text
    @@ -6710,7 +6711,7 @@ 909 910 if not word: 911 if self._char in self.SINGLE_TOKENS: - 912 self._add(self.SINGLE_TOKENS[self._char]) # type: ignore + 912 self._add(self.SINGLE_TOKENS[self._char], text=self._char) # type: ignore 913 return 914 self._scan_var() 915 return @@ -6723,217 +6724,218 @@ 922 return 923 924 self._advance(size - 1) - 925 self._add(self.KEYWORDS[word.upper()]) - 926 - 927 def _scan_comment(self, comment_start: str) -> bool: - 928 if comment_start not in self._COMMENTS: # type: ignore - 929 return False - 930 - 931 comment_start_line = self._line - 932 comment_start_size = len(comment_start) - 933 comment_end = self._COMMENTS[comment_start] # type: ignore - 934 - 935 if comment_end: - 936 comment_end_size = len(comment_end) - 937 - 938 while not self._end and self._chars(comment_end_size) != comment_end: - 939 self._advance() - 940 - 941 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) # type: ignore - 942 self._advance(comment_end_size - 1) - 943 else: - 944 while not self._end and not self.WHITE_SPACE.get(self._peek) is TokenType.BREAK: - 945 self._advance() - 946 self._comments.append(self._text[comment_start_size:]) # type: ignore - 947 - 948 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. - 949 # Multiple consecutive comments are preserved by appending them to the current comments list. - 950 if comment_start_line == self._prev_token_line: - 951 self.tokens[-1].comments.extend(self._comments) - 952 self._comments = [] - 953 self._prev_token_line = self._line - 954 - 955 return True - 956 - 957 def _scan_number(self) -> None: - 958 if self._char == "0": - 959 peek = self._peek.upper() # type: ignore - 960 if peek == "B": - 961 return self._scan_bits() - 962 elif peek == "X": - 963 return self._scan_hex() - 964 - 965 decimal = False - 966 scientific = 0 - 967 - 968 while True: - 969 if self._peek.isdigit(): # type: ignore - 970 self._advance() - 971 elif self._peek == "." and not decimal: - 972 decimal = True - 973 self._advance() - 974 elif self._peek in ("-", "+") and scientific == 1: - 975 scientific += 1 - 976 self._advance() - 977 elif self._peek.upper() == "E" and not scientific: # type: ignore - 978 scientific += 1 - 979 self._advance() - 980 elif self._peek.isidentifier(): # type: ignore - 981 number_text = self._text - 982 literal = [] - 983 - 984 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: # type: ignore - 985 literal.append(self._peek.upper()) # type: ignore - 986 self._advance() - 987 - 988 literal = "".join(literal) # type: ignore - 989 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal)) # type: ignore - 990 - 991 if token_type: - 992 self._add(TokenType.NUMBER, number_text) - 993 self._add(TokenType.DCOLON, "::") - 994 return self._add(token_type, literal) # type: ignore - 995 elif self.IDENTIFIER_CAN_START_WITH_DIGIT: - 996 return self._add(TokenType.VAR) - 997 - 998 self._add(TokenType.NUMBER, number_text) - 999 return self._advance(-len(literal)) -1000 else: -1001 return self._add(TokenType.NUMBER) -1002 -1003 def _scan_bits(self) -> None: -1004 self._advance() -1005 value = self._extract_value() -1006 try: -1007 self._add(TokenType.BIT_STRING, f"{int(value, 2)}") -1008 except ValueError: -1009 self._add(TokenType.IDENTIFIER) -1010 -1011 def _scan_hex(self) -> None: -1012 self._advance() -1013 value = self._extract_value() -1014 try: -1015 self._add(TokenType.HEX_STRING, f"{int(value, 16)}") -1016 except ValueError: -1017 self._add(TokenType.IDENTIFIER) -1018 -1019 def _extract_value(self) -> str: -1020 while True: -1021 char = self._peek.strip() # type: ignore -1022 if char and char not in self.SINGLE_TOKENS: -1023 self._advance() -1024 else: -1025 break -1026 -1027 return self._text -1028 -1029 def _scan_string(self, quote: str) -> bool: -1030 quote_end = self._QUOTES.get(quote) # type: ignore -1031 if quote_end is None: -1032 return False -1033 -1034 self._advance(len(quote)) -1035 text = self._extract_string(quote_end) -1036 text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text # type: ignore -1037 self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text) -1038 return True -1039 -1040 # X'1234, b'0110', E'\\\\\' etc. -1041 def _scan_formatted_string(self, string_start: str) -> bool: -1042 if string_start in self._HEX_STRINGS: # type: ignore -1043 delimiters = self._HEX_STRINGS # type: ignore -1044 token_type = TokenType.HEX_STRING -1045 base = 16 -1046 elif string_start in self._BIT_STRINGS: # type: ignore -1047 delimiters = self._BIT_STRINGS # type: ignore -1048 token_type = TokenType.BIT_STRING -1049 base = 2 -1050 elif string_start in self._BYTE_STRINGS: # type: ignore -1051 delimiters = self._BYTE_STRINGS # type: ignore -1052 token_type = TokenType.BYTE_STRING -1053 base = None -1054 else: -1055 return False -1056 -1057 self._advance(len(string_start)) -1058 string_end = delimiters.get(string_start) -1059 text = self._extract_string(string_end) -1060 -1061 if base is None: -1062 self._add(token_type, text) -1063 else: -1064 try: -1065 self._add(token_type, f"{int(text, base)}") -1066 except: -1067 raise RuntimeError( -1068 f"Numeric string contains invalid characters from {self._line}:{self._start}" -1069 ) -1070 -1071 return True -1072 -1073 def _scan_identifier(self, identifier_end: str) -> None: -1074 text = "" -1075 identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES -1076 -1077 while True: -1078 if self._end: -1079 raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}") -1080 -1081 self._advance() -1082 if self._char == identifier_end: -1083 if identifier_end_is_escape and self._peek == identifier_end: -1084 text += identifier_end # type: ignore -1085 self._advance() -1086 continue -1087 -1088 break -1089 -1090 text += self._char # type: ignore -1091 -1092 self._add(TokenType.IDENTIFIER, text) -1093 -1094 def _scan_var(self) -> None: -1095 while True: -1096 char = self._peek.strip() # type: ignore -1097 if char and char not in self.SINGLE_TOKENS: -1098 self._advance() -1099 else: -1100 break -1101 self._add( -1102 TokenType.VAR -1103 if self._prev_token_type == TokenType.PARAMETER -1104 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) -1105 ) -1106 -1107 def _extract_string(self, delimiter: str) -> str: -1108 text = "" -1109 delim_size = len(delimiter) -1110 -1111 while True: -1112 if self._char in self._STRING_ESCAPES and ( -1113 self._peek == delimiter or self._peek in self._STRING_ESCAPES -1114 ): -1115 if self._peek == delimiter: -1116 text += self._peek # type: ignore -1117 else: -1118 text += self._char + self._peek # type: ignore -1119 -1120 if self._current + 1 < self.size: -1121 self._advance(2) -1122 else: -1123 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}") -1124 else: -1125 if self._chars(delim_size) == delimiter: -1126 if delim_size > 1: -1127 self._advance(delim_size - 1) -1128 break -1129 -1130 if self._end: -1131 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}") -1132 text += self._char # type: ignore -1133 self._advance() -1134 -1135 return text + 925 word = word.upper() + 926 self._add(self.KEYWORDS[word], text=word) + 927 + 928 def _scan_comment(self, comment_start: str) -> bool: + 929 if comment_start not in self._COMMENTS: # type: ignore + 930 return False + 931 + 932 comment_start_line = self._line + 933 comment_start_size = len(comment_start) + 934 comment_end = self._COMMENTS[comment_start] # type: ignore + 935 + 936 if comment_end: + 937 comment_end_size = len(comment_end) + 938 + 939 while not self._end and self._chars(comment_end_size) != comment_end: + 940 self._advance() + 941 + 942 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) # type: ignore + 943 self._advance(comment_end_size - 1) + 944 else: + 945 while not self._end and not self.WHITE_SPACE.get(self._peek) is TokenType.BREAK: + 946 self._advance() + 947 self._comments.append(self._text[comment_start_size:]) # type: ignore + 948 + 949 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. + 950 # Multiple consecutive comments are preserved by appending them to the current comments list. + 951 if comment_start_line == self._prev_token_line or self._end: + 952 self.tokens[-1].comments.extend(self._comments) + 953 self._comments = [] + 954 self._prev_token_line = self._line + 955 + 956 return True + 957 + 958 def _scan_number(self) -> None: + 959 if self._char == "0": + 960 peek = self._peek.upper() # type: ignore + 961 if peek == "B": + 962 return self._scan_bits() + 963 elif peek == "X": + 964 return self._scan_hex() + 965 + 966 decimal = False + 967 scientific = 0 + 968 + 969 while True: + 970 if self._peek.isdigit(): # type: ignore + 971 self._advance() + 972 elif self._peek == "." and not decimal: + 973 decimal = True + 974 self._advance() + 975 elif self._peek in ("-", "+") and scientific == 1: + 976 scientific += 1 + 977 self._advance() + 978 elif self._peek.upper() == "E" and not scientific: # type: ignore + 979 scientific += 1 + 980 self._advance() + 981 elif self._peek.isidentifier(): # type: ignore + 982 number_text = self._text + 983 literal = [] + 984 + 985 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: # type: ignore + 986 literal.append(self._peek.upper()) # type: ignore + 987 self._advance() + 988 + 989 literal = "".join(literal) # type: ignore + 990 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal)) # type: ignore + 991 + 992 if token_type: + 993 self._add(TokenType.NUMBER, number_text) + 994 self._add(TokenType.DCOLON, "::") + 995 return self._add(token_type, literal) # type: ignore + 996 elif self.IDENTIFIER_CAN_START_WITH_DIGIT: + 997 return self._add(TokenType.VAR) + 998 + 999 self._add(TokenType.NUMBER, number_text) +1000 return self._advance(-len(literal)) +1001 else: +1002 return self._add(TokenType.NUMBER) +1003 +1004 def _scan_bits(self) -> None: +1005 self._advance() +1006 value = self._extract_value() +1007 try: +1008 self._add(TokenType.BIT_STRING, f"{int(value, 2)}") +1009 except ValueError: +1010 self._add(TokenType.IDENTIFIER) +1011 +1012 def _scan_hex(self) -> None: +1013 self._advance() +1014 value = self._extract_value() +1015 try: +1016 self._add(TokenType.HEX_STRING, f"{int(value, 16)}") +1017 except ValueError: +1018 self._add(TokenType.IDENTIFIER) +1019 +1020 def _extract_value(self) -> str: +1021 while True: +1022 char = self._peek.strip() # type: ignore +1023 if char and char not in self.SINGLE_TOKENS: +1024 self._advance() +1025 else: +1026 break +1027 +1028 return self._text +1029 +1030 def _scan_string(self, quote: str) -> bool: +1031 quote_end = self._QUOTES.get(quote) # type: ignore +1032 if quote_end is None: +1033 return False +1034 +1035 self._advance(len(quote)) +1036 text = self._extract_string(quote_end) +1037 text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text # type: ignore +1038 self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text) +1039 return True +1040 +1041 # X'1234, b'0110', E'\\\\\' etc. +1042 def _scan_formatted_string(self, string_start: str) -> bool: +1043 if string_start in self._HEX_STRINGS: # type: ignore +1044 delimiters = self._HEX_STRINGS # type: ignore +1045 token_type = TokenType.HEX_STRING +1046 base = 16 +1047 elif string_start in self._BIT_STRINGS: # type: ignore +1048 delimiters = self._BIT_STRINGS # type: ignore +1049 token_type = TokenType.BIT_STRING +1050 base = 2 +1051 elif string_start in self._BYTE_STRINGS: # type: ignore +1052 delimiters = self._BYTE_STRINGS # type: ignore +1053 token_type = TokenType.BYTE_STRING +1054 base = None +1055 else: +1056 return False +1057 +1058 self._advance(len(string_start)) +1059 string_end = delimiters.get(string_start) +1060 text = self._extract_string(string_end) +1061 +1062 if base is None: +1063 self._add(token_type, text) +1064 else: +1065 try: +1066 self._add(token_type, f"{int(text, base)}") +1067 except: +1068 raise RuntimeError( +1069 f"Numeric string contains invalid characters from {self._line}:{self._start}" +1070 ) +1071 +1072 return True +1073 +1074 def _scan_identifier(self, identifier_end: str) -> None: +1075 text = "" +1076 identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES +1077 +1078 while True: +1079 if self._end: +1080 raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}") +1081 +1082 self._advance() +1083 if self._char == identifier_end: +1084 if identifier_end_is_escape and self._peek == identifier_end: +1085 text += identifier_end # type: ignore +1086 self._advance() +1087 continue +1088 +1089 break +1090 +1091 text += self._char # type: ignore +1092 +1093 self._add(TokenType.IDENTIFIER, text) +1094 +1095 def _scan_var(self) -> None: +1096 while True: +1097 char = self._peek.strip() # type: ignore +1098 if char and char not in self.SINGLE_TOKENS: +1099 self._advance() +1100 else: +1101 break +1102 self._add( +1103 TokenType.VAR +1104 if self._prev_token_type == TokenType.PARAMETER +1105 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) +1106 ) +1107 +1108 def _extract_string(self, delimiter: str) -> str: +1109 text = "" +1110 delim_size = len(delimiter) +1111 +1112 while True: +1113 if self._char in self._STRING_ESCAPES and ( +1114 self._peek == delimiter or self._peek in self._STRING_ESCAPES +1115 ): +1116 if self._peek == delimiter: +1117 text += self._peek # type: ignore +1118 else: +1119 text += self._char + self._peek # type: ignore +1120 +1121 if self._current + 1 < self.size: +1122 self._advance(2) +1123 else: +1124 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}") +1125 else: +1126 if self._chars(delim_size) == delimiter: +1127 if delim_size > 1: +1128 self._advance(delim_size - 1) +1129 break +1130 +1131 if self._end: +1132 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}") +1133 text += self._char # type: ignore +1134 self._advance() +1135 +1136 return text diff --git a/docs/sqlglot/transforms.html b/docs/sqlglot/transforms.html index 0cf0f63..b3cb63e 100644 --- a/docs/sqlglot/transforms.html +++ b/docs/sqlglot/transforms.html @@ -3,7 +3,7 @@ - + sqlglot.transforms API documentation @@ -187,8 +187,8 @@ 114 115def remove_precision_parameterized_types(expression: exp.Expression) -> exp.Expression: 116 """ -117 Some dialects only allow the precision for parameterized types to be defined in the DDL and not in other expressions. -118 This transforms removes the precision from parameterized types in expressions. +117 Some dialects only allow the precision for parameterized types to be defined in the DDL and not in +118 other expressions. This transforms removes the precision from parameterized types in expressions. 119 """ 120 return expression.transform( 121 lambda node: exp.DataType( @@ -465,8 +465,8 @@ otherwise we won't be able to refer to it in the outer query's WHERE clause.

    116def remove_precision_parameterized_types(expression: exp.Expression) -> exp.Expression:
     117    """
    -118    Some dialects only allow the precision for parameterized types to be defined in the DDL and not in other expressions.
    -119    This transforms removes the precision from parameterized types in expressions.
    +118    Some dialects only allow the precision for parameterized types to be defined in the DDL and not in
    +119    other expressions. This transforms removes the precision from parameterized types in expressions.
     120    """
     121    return expression.transform(
     122        lambda node: exp.DataType(
    @@ -485,8 +485,8 @@ otherwise we won't be able to refer to it in the outer query's WHERE clause.

    -

    Some dialects only allow the precision for parameterized types to be defined in the DDL and not in other expressions. -This transforms removes the precision from parameterized types in expressions.

    +

    Some dialects only allow the precision for parameterized types to be defined in the DDL and not in +other expressions. This transforms removes the precision from parameterized types in expressions.

    diff --git a/docs/sqlglot/trie.html b/docs/sqlglot/trie.html index 94d934d..632b67a 100644 --- a/docs/sqlglot/trie.html +++ b/docs/sqlglot/trie.html @@ -3,7 +3,7 @@ - + sqlglot.trie API documentation diff --git a/sqlglot/__init__.py b/sqlglot/__init__.py index b53b261..1feb464 100644 --- a/sqlglot/__init__.py +++ b/sqlglot/__init__.py @@ -47,7 +47,7 @@ if t.TYPE_CHECKING: T = t.TypeVar("T", bound=Expression) -__version__ = "11.4.5" +__version__ = "11.5.2" pretty = False """Whether to format generated SQL by default.""" diff --git a/sqlglot/dataframe/sql/functions.py b/sqlglot/dataframe/sql/functions.py index 3c98f42..f77b4f8 100644 --- a/sqlglot/dataframe/sql/functions.py +++ b/sqlglot/dataframe/sql/functions.py @@ -1036,8 +1036,8 @@ def from_json( def to_json(col: ColumnOrName, options: t.Optional[t.Dict[str, str]] = None) -> Column: if options is not None: options_col = create_map([lit(x) for x in _flatten(options.items())]) - return Column.invoke_anonymous_function(col, "TO_JSON", options_col) - return Column.invoke_anonymous_function(col, "TO_JSON") + return Column.invoke_expression_over_column(col, expression.JSONFormat, options=options_col) + return Column.invoke_expression_over_column(col, expression.JSONFormat) def schema_of_json(col: ColumnOrName, options: t.Optional[t.Dict[str, str]] = None) -> Column: diff --git a/sqlglot/dialects/bigquery.py b/sqlglot/dialects/bigquery.py index a3f9e6d..701377b 100644 --- a/sqlglot/dialects/bigquery.py +++ b/sqlglot/dialects/bigquery.py @@ -221,6 +221,9 @@ class BigQuery(Dialect): **generator.Generator.TRANSFORMS, # type: ignore **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES, # type: ignore exp.ArraySize: rename_func("ARRAY_LENGTH"), + exp.AtTimeZone: lambda self, e: self.func( + "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone")) + ), exp.DateAdd: _date_add_sql("DATE", "ADD"), exp.DateSub: _date_add_sql("DATE", "SUB"), exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"), diff --git a/sqlglot/dialects/clickhouse.py b/sqlglot/dialects/clickhouse.py index 89e2296..b06462c 100644 --- a/sqlglot/dialects/clickhouse.py +++ b/sqlglot/dialects/clickhouse.py @@ -46,18 +46,22 @@ class ClickHouse(Dialect): time=seq_get(args, 1), decay=seq_get(params, 0), ), - "MAP": parse_var_map, - "HISTOGRAM": lambda params, args: exp.Histogram( - this=seq_get(args, 0), bins=seq_get(params, 0) - ), "GROUPUNIQARRAY": lambda params, args: exp.GroupUniqArray( this=seq_get(args, 0), size=seq_get(params, 0) ), + "HISTOGRAM": lambda params, args: exp.Histogram( + this=seq_get(args, 0), bins=seq_get(params, 0) + ), + "MAP": parse_var_map, + "MATCH": exp.RegexpLike.from_arg_list, "QUANTILE": lambda params, args: exp.Quantile(this=args, quantile=params), "QUANTILES": lambda params, args: exp.Quantiles(parameters=params, expressions=args), "QUANTILEIF": lambda params, args: exp.QuantileIf(parameters=params, expressions=args), } + FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy() + FUNCTION_PARSERS.pop("MATCH") + RANGE_PARSERS = { **parser.Parser.RANGE_PARSERS, TokenType.GLOBAL: lambda self, this: self._match(TokenType.IN) @@ -135,6 +139,7 @@ class ClickHouse(Dialect): exp.Quantile: lambda self, e: f"quantile{self._param_args_sql(e, 'quantile', 'this')}", exp.Quantiles: lambda self, e: f"quantiles{self._param_args_sql(e, 'parameters', 'expressions')}", exp.QuantileIf: lambda self, e: f"quantileIf{self._param_args_sql(e, 'parameters', 'expressions')}", + exp.RegexpLike: lambda self, e: f"match({self.format_args(e.this, e.expression)})", exp.StrPosition: lambda self, e: f"position({self.format_args(e.this, e.args.get('substr'), e.args.get('position'))})", exp.VarMap: lambda self, e: _lower_func(var_map_sql(self, e)), } diff --git a/sqlglot/dialects/hive.py b/sqlglot/dialects/hive.py index 68137ae..c39656e 100644 --- a/sqlglot/dialects/hive.py +++ b/sqlglot/dialects/hive.py @@ -261,6 +261,7 @@ class Hive(Dialect): "SIZE": exp.ArraySize.from_arg_list, "SPLIT": exp.RegexpSplit.from_arg_list, "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), + "TO_JSON": exp.JSONFormat.from_arg_list, "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), } @@ -281,6 +282,7 @@ class Hive(Dialect): exp.DataType.Type.DATETIME: "TIMESTAMP", exp.DataType.Type.VARBINARY: "BINARY", exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", + exp.DataType.Type.BIT: "BOOLEAN", } TRANSFORMS = { @@ -305,6 +307,7 @@ class Hive(Dialect): exp.Join: _unnest_to_explode_sql, exp.JSONExtract: rename_func("GET_JSON_OBJECT"), exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), + exp.JSONFormat: rename_func("TO_JSON"), exp.Map: var_map_sql, exp.Max: max_or_greatest, exp.Min: min_or_least, @@ -343,6 +346,7 @@ class Hive(Dialect): exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"), exp.NumberToStr: rename_func("FORMAT_NUMBER"), exp.LastDateOfMonth: rename_func("LAST_DAY"), + exp.National: lambda self, e: self.sql(e, "this"), } PROPERTIES_LOCATION = { diff --git a/sqlglot/dialects/mysql.py b/sqlglot/dialects/mysql.py index 5dfa811..d64efbf 100644 --- a/sqlglot/dialects/mysql.py +++ b/sqlglot/dialects/mysql.py @@ -429,7 +429,7 @@ class MySQL(Dialect): LIMIT_FETCH = "LIMIT" - def show_sql(self, expression): + def show_sql(self, expression: exp.Show) -> str: this = f" {expression.name}" full = " FULL" if expression.args.get("full") else "" global_ = " GLOBAL" if expression.args.get("global") else "" @@ -469,13 +469,13 @@ class MySQL(Dialect): return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" - def _prefixed_sql(self, prefix, expression, arg): + def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str: sql = self.sql(expression, arg) if not sql: return "" return f" {prefix} {sql}" - def _oldstyle_limit_sql(self, expression): + def _oldstyle_limit_sql(self, expression: exp.Show) -> str: limit = self.sql(expression, "limit") offset = self.sql(expression, "offset") if limit: diff --git a/sqlglot/dialects/oracle.py b/sqlglot/dialects/oracle.py index fad6c4a..3819b76 100644 --- a/sqlglot/dialects/oracle.py +++ b/sqlglot/dialects/oracle.py @@ -70,7 +70,6 @@ class Oracle(Dialect): class Parser(parser.Parser): 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)), } @@ -122,7 +121,6 @@ class Oracle(Dialect): **transforms.UNALIAS_GROUP, # type: ignore exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */", exp.ILike: no_ilike_sql, - exp.Matches: rename_func("DECODE"), exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), exp.Substring: rename_func("SUBSTR"), diff --git a/sqlglot/dialects/redshift.py b/sqlglot/dialects/redshift.py index ebd5216..63c14f4 100644 --- a/sqlglot/dialects/redshift.py +++ b/sqlglot/dialects/redshift.py @@ -3,7 +3,6 @@ from __future__ import annotations import typing as t from sqlglot import exp, transforms -from sqlglot.dialects.dialect import rename_func from sqlglot.dialects.postgres import Postgres from sqlglot.helper import seq_get from sqlglot.tokens import TokenType @@ -30,7 +29,6 @@ class Redshift(Postgres): expression=seq_get(args, 1), unit=seq_get(args, 0), ), - "DECODE": exp.Matches.from_arg_list, "NVL": exp.Coalesce.from_arg_list, } @@ -89,7 +87,6 @@ class Redshift(Postgres): ), exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", exp.DistStyleProperty: lambda self, e: self.naked_property(e), - exp.Matches: rename_func("DECODE"), exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", } diff --git a/sqlglot/dialects/snowflake.py b/sqlglot/dialects/snowflake.py index c50961c..34bc3bd 100644 --- a/sqlglot/dialects/snowflake.py +++ b/sqlglot/dialects/snowflake.py @@ -179,6 +179,10 @@ class Snowflake(Dialect): "ARRAYAGG": exp.ArrayAgg.from_arg_list, "ARRAY_CONSTRUCT": exp.Array.from_arg_list, "ARRAY_TO_STRING": exp.ArrayJoin.from_arg_list, + "CONVERT_TIMEZONE": lambda args: exp.AtTimeZone( + this=seq_get(args, 1), + zone=seq_get(args, 0), + ), "DATE_TRUNC": date_trunc_to_time, "DATEADD": lambda args: exp.DateAdd( this=seq_get(args, 2), @@ -190,7 +194,6 @@ class Snowflake(Dialect): expression=seq_get(args, 1), unit=seq_get(args, 0), ), - "DECODE": exp.Matches.from_arg_list, "DIV0": _div0_to_if, "IFF": exp.If.from_arg_list, "NULLIFZERO": _nullifzero_to_if, @@ -275,6 +278,9 @@ class Snowflake(Dialect): exp.Array: inline_array_sql, exp.ArrayConcat: rename_func("ARRAY_CAT"), exp.ArrayJoin: rename_func("ARRAY_TO_STRING"), + exp.AtTimeZone: lambda self, e: self.func( + "CONVERT_TIMEZONE", e.args.get("zone"), e.this + ), exp.DateAdd: lambda self, e: self.func("DATEADD", e.text("unit"), e.expression, e.this), exp.DateDiff: lambda self, e: self.func( "DATEDIFF", e.text("unit"), e.expression, e.this @@ -287,7 +293,6 @@ class Snowflake(Dialect): exp.LogicalAnd: rename_func("BOOLAND_AGG"), exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", - exp.Matches: rename_func("DECODE"), exp.StrPosition: lambda self, e: self.func( "POSITION", e.args.get("substr"), e.this, e.args.get("position") ), diff --git a/sqlglot/dialects/tsql.py b/sqlglot/dialects/tsql.py index 8e9b6c3..b8a227b 100644 --- a/sqlglot/dialects/tsql.py +++ b/sqlglot/dialects/tsql.py @@ -294,6 +294,8 @@ class TSQL(Dialect): "REPLICATE": exp.Repeat.from_arg_list, "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), "SYSDATETIME": exp.CurrentTimestamp.from_arg_list, + "SUSER_NAME": exp.CurrentUser.from_arg_list, + "SUSER_SNAME": exp.CurrentUser.from_arg_list, } VAR_LENGTH_DATATYPES = { diff --git a/sqlglot/executor/env.py b/sqlglot/executor/env.py index ba9cbbd..8f64cce 100644 --- a/sqlglot/executor/env.py +++ b/sqlglot/executor/env.py @@ -173,4 +173,11 @@ ENV = { "SUBSTRING": substring, "TIMESTRTOTIME": null_if_any(lambda arg: datetime.datetime.fromisoformat(arg)), "UPPER": null_if_any(lambda arg: arg.upper()), + "YEAR": null_if_any(lambda arg: arg.year), + "MONTH": null_if_any(lambda arg: arg.month), + "DAY": null_if_any(lambda arg: arg.day), + "CURRENTDATETIME": datetime.datetime.now, + "CURRENTTIMESTAMP": datetime.datetime.now, + "CURRENTTIME": datetime.datetime.now, + "CURRENTDATE": datetime.date.today, } diff --git a/sqlglot/expressions.py b/sqlglot/expressions.py index f4aae47..9011dce 100644 --- a/sqlglot/expressions.py +++ b/sqlglot/expressions.py @@ -948,12 +948,17 @@ class Column(Condition): return Dot.build(parts) +class ColumnPosition(Expression): + arg_types = {"this": False, "position": True} + + class ColumnDef(Expression): arg_types = { "this": True, "kind": False, "constraints": False, "exists": False, + "position": False, } @@ -3290,6 +3295,13 @@ class Anonymous(Func): is_var_len_args = True +# https://docs.snowflake.com/en/sql-reference/functions/hll +# https://docs.aws.amazon.com/redshift/latest/dg/r_HLL_function.html +class Hll(AggFunc): + arg_types = {"this": True, "expressions": False} + is_var_len_args = True + + class ApproxDistinct(AggFunc): arg_types = {"this": True, "accuracy": False} @@ -3440,6 +3452,10 @@ class CurrentTimestamp(Func): arg_types = {"this": False} +class CurrentUser(Func): + arg_types = {"this": False} + + class DateAdd(Func, TimeUnit): arg_types = {"this": True, "expression": True, "unit": False} @@ -3647,6 +3663,11 @@ class JSONBExtractScalar(JSONExtract): _sql_names = ["JSONB_EXTRACT_SCALAR"] +class JSONFormat(Func): + arg_types = {"this": False, "options": False} + _sql_names = ["JSON_FORMAT"] + + class Least(Func): arg_types = {"expressions": False} is_var_len_args = True @@ -3703,14 +3724,9 @@ class VarMap(Func): is_var_len_args = True -class Matches(Func): - """Oracle/Snowflake decode. - https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions040.htm - Pattern matching MATCHES(value, search1, result1, ...searchN, resultN, else) - """ - - arg_types = {"this": True, "expressions": True} - is_var_len_args = True +# https://dev.mysql.com/doc/refman/8.0/en/fulltext-search.html +class MatchAgainst(Func): + arg_types = {"this": True, "expressions": True, "modifier": False} class Max(AggFunc): @@ -4989,9 +5005,10 @@ def replace_placeholders(expression, *args, **kwargs): Examples: >>> from sqlglot import exp, parse_one >>> replace_placeholders( - ... parse_one("select * from :tbl where ? = ?"), "a", "b", tbl="foo" + ... parse_one("select * from :tbl where ? = ?"), + ... exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo") ... ).sql() - 'SELECT * FROM foo WHERE a = b' + "SELECT * FROM foo WHERE str_col = 'b'" Returns: The mapped expression. @@ -5002,10 +5019,10 @@ def replace_placeholders(expression, *args, **kwargs): if node.name: new_name = kwargs.get(node.name) if new_name: - return to_identifier(new_name) + return convert(new_name) else: try: - return to_identifier(next(args)) + return convert(next(args)) except StopIteration: pass return node diff --git a/sqlglot/generator.py b/sqlglot/generator.py index 6871dd8..8a49d55 100644 --- a/sqlglot/generator.py +++ b/sqlglot/generator.py @@ -466,6 +466,12 @@ class Generator: if part ) + def columnposition_sql(self, expression: exp.ColumnPosition) -> str: + this = self.sql(expression, "this") + this = f" {this}" if this else "" + position = self.sql(expression, "position") + return f"{position}{this}" + def columndef_sql(self, expression: exp.ColumnDef) -> str: column = self.sql(expression, "this") kind = self.sql(expression, "kind") @@ -473,8 +479,10 @@ class Generator: exists = "IF NOT EXISTS " if expression.args.get("exists") else "" kind = f" {kind}" if kind else "" constraints = f" {constraints}" if constraints else "" + position = self.sql(expression, "position") + position = f" {position}" if position else "" - return f"{exists}{column}{kind}{constraints}" + return f"{exists}{column}{kind}{constraints}{position}" def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: this = self.sql(expression, "this") @@ -1591,6 +1599,11 @@ class Generator: exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) ) + def matchagainst_sql(self, expression: exp.MatchAgainst) -> str: + modifier = expression.args.get("modifier") + modifier = f" {modifier}" if modifier else "" + return f"{self.func('MATCH', *expression.expressions)} AGAINST({self.sql(expression, 'this')}{modifier})" + def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str: return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}" diff --git a/sqlglot/optimizer/qualify_columns.py b/sqlglot/optimizer/qualify_columns.py index 5e40cf3..6eae2b5 100644 --- a/sqlglot/optimizer/qualify_columns.py +++ b/sqlglot/optimizer/qualify_columns.py @@ -143,12 +143,12 @@ def _expand_alias_refs(scope, resolver): selects = {} # Replace references to select aliases - def transform(node, *_): + def transform(node, source_first=True): if isinstance(node, exp.Column) and not node.table: table = resolver.get_table(node.name) # Source columns get priority over select aliases - if table: + if source_first and table: node.set("table", table) return node @@ -163,16 +163,21 @@ def _expand_alias_refs(scope, resolver): select = select.this return select.copy() + node.set("table", table) + elif isinstance(node, exp.Expression) and not isinstance(node, exp.Subqueryable): + exp.replace_children(node, transform, source_first) + return node for select in scope.expression.selects: - select.transform(transform, copy=False) - - for modifier in ("where", "group"): - part = scope.expression.args.get(modifier) + transform(select) - if part: - part.transform(transform, copy=False) + for modifier, source_first in ( + ("where", True), + ("group", True), + ("having", False), + ): + transform(scope.expression.args.get(modifier), source_first=source_first) def _expand_group_by(scope, resolver): diff --git a/sqlglot/optimizer/simplify.py b/sqlglot/optimizer/simplify.py index 1ed3ca2..28ae86d 100644 --- a/sqlglot/optimizer/simplify.py +++ b/sqlglot/optimizer/simplify.py @@ -347,8 +347,9 @@ def _simplify_binary(expression, a, b): if isinstance(expression, exp.Mul): return exp.Literal.number(a * b) if isinstance(expression, exp.Div): + # engines have differing int div behavior so intdiv is not safe if isinstance(a, int) and isinstance(b, int): - return exp.Literal.number(a // b) + return None return exp.Literal.number(a / b) boolean = eval_boolean(expression, a, b) @@ -491,7 +492,7 @@ def _flat_simplify(expression, simplifier, root=True): if result: queue.remove(b) - queue.append(result) + queue.appendleft(result) break else: operands.append(a) diff --git a/sqlglot/parser.py b/sqlglot/parser.py index 8269525..b3b899c 100644 --- a/sqlglot/parser.py +++ b/sqlglot/parser.py @@ -105,6 +105,7 @@ class Parser(metaclass=_Parser): TokenType.CURRENT_DATETIME: exp.CurrentDate, TokenType.CURRENT_TIME: exp.CurrentTime, TokenType.CURRENT_TIMESTAMP: exp.CurrentTimestamp, + TokenType.CURRENT_USER: exp.CurrentUser, } NESTED_TYPE_TOKENS = { @@ -285,6 +286,7 @@ class Parser(metaclass=_Parser): TokenType.CURRENT_DATETIME, TokenType.CURRENT_TIMESTAMP, TokenType.CURRENT_TIME, + TokenType.CURRENT_USER, TokenType.FILTER, TokenType.FIRST, TokenType.FORMAT, @@ -674,9 +676,11 @@ class Parser(metaclass=_Parser): FUNCTION_PARSERS: t.Dict[str, t.Callable] = { "CAST": lambda self: self._parse_cast(self.STRICT_CAST), "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST), + "DECODE": lambda self: self._parse_decode(), "EXTRACT": lambda self: self._parse_extract(), "JSON_OBJECT": lambda self: self._parse_json_object(), "LOG": lambda self: self._parse_logarithm(), + "MATCH": lambda self: self._parse_match_against(), "POSITION": lambda self: self._parse_position(), "STRING_AGG": lambda self: self._parse_string_agg(), "SUBSTRING": lambda self: self._parse_substring(), @@ -2634,7 +2638,7 @@ class Parser(metaclass=_Parser): self._match_r_paren() maybe_func = True - if not nested and self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): + if self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): this = exp.DataType( this=exp.DataType.Type.ARRAY, expressions=[exp.DataType.build(type_token.value, expressions=expressions)], @@ -2959,6 +2963,11 @@ class Parser(metaclass=_Parser): else: this = self._parse_select_or_expression() + if isinstance(this, exp.EQ): + left = this.this + if isinstance(left, exp.Column): + left.replace(exp.Var(this=left.text("this"))) + if self._match(TokenType.IGNORE_NULLS): this = self.expression(exp.IgnoreNulls, this=this) else: @@ -2968,8 +2977,16 @@ class Parser(metaclass=_Parser): def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: index = self._index - if not self._match(TokenType.L_PAREN) or self._match(TokenType.SELECT): + + try: + if self._parse_select(nested=True): + return this + except Exception: + pass + finally: self._retreat(index) + + if not self._match(TokenType.L_PAREN): return this args = self._parse_csv( @@ -3344,6 +3361,51 @@ class Parser(metaclass=_Parser): return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) + def _parse_decode(self) -> t.Optional[exp.Expression]: + """ + There are generally two variants of the DECODE function: + + - DECODE(bin, charset) + - DECODE(expression, search, result [, search, result] ... [, default]) + + The second variant will always be parsed into a CASE expression. Note that NULL + needs special treatment, since we need to explicitly check for it with `IS NULL`, + instead of relying on pattern matching. + """ + args = self._parse_csv(self._parse_conjunction) + + if len(args) < 3: + return self.expression(exp.Decode, this=seq_get(args, 0), charset=seq_get(args, 1)) + + expression, *expressions = args + if not expression: + return None + + ifs = [] + for search, result in zip(expressions[::2], expressions[1::2]): + if not search or not result: + return None + + if isinstance(search, exp.Literal): + ifs.append( + exp.If(this=exp.EQ(this=expression.copy(), expression=search), true=result) + ) + elif isinstance(search, exp.Null): + ifs.append( + exp.If(this=exp.Is(this=expression.copy(), expression=exp.Null()), true=result) + ) + else: + cond = exp.or_( + exp.EQ(this=expression.copy(), expression=search), + exp.and_( + exp.Is(this=expression.copy(), expression=exp.Null()), + exp.Is(this=search.copy(), expression=exp.Null()), + ), + ) + ifs.append(exp.If(this=cond, true=result)) + + return exp.Case(ifs=ifs, default=expressions[-1] if len(expressions) % 2 == 1 else None) + def _parse_json_key_value(self) -> t.Optional[exp.Expression]: self._match_text_seq("KEY") key = self._parse_field() @@ -3398,6 +3460,28 @@ class Parser(metaclass=_Parser): exp.Ln if self.LOG_DEFAULTS_TO_LN else exp.Log, this=seq_get(args, 0) ) + def _parse_match_against(self) -> exp.Expression: + expressions = self._parse_csv(self._parse_column) + + self._match_text_seq(")", "AGAINST", "(") + + this = self._parse_string() + + if self._match_text_seq("IN", "NATURAL", "LANGUAGE", "MODE"): + modifier = "IN NATURAL LANGUAGE MODE" + if self._match_text_seq("WITH", "QUERY", "EXPANSION"): + modifier = f"{modifier} WITH QUERY EXPANSION" + elif self._match_text_seq("IN", "BOOLEAN", "MODE"): + modifier = "IN BOOLEAN MODE" + elif self._match_text_seq("WITH", "QUERY", "EXPANSION"): + modifier = "WITH QUERY EXPANSION" + else: + modifier = None + + return self.expression( + exp.MatchAgainst, this=this, expressions=expressions, modifier=modifier + ) + def _parse_position(self, haystack_first: bool = False) -> exp.Expression: args = self._parse_csv(self._parse_bitwise) @@ -3791,6 +3875,14 @@ class Parser(metaclass=_Parser): if expression: expression.set("exists", exists_column) + # https://docs.databricks.com/delta/update-schema.html#explicitly-update-schema-to-add-columns + if self._match_texts(("FIRST", "AFTER")): + position = self._prev.text + column_position = self.expression( + exp.ColumnPosition, this=self._parse_column(), position=position + ) + expression.set("position", column_position) + return expression def _parse_drop_column(self) -> t.Optional[exp.Expression]: diff --git a/sqlglot/tokens.py b/sqlglot/tokens.py index e5b44e7..cf2e31f 100644 --- a/sqlglot/tokens.py +++ b/sqlglot/tokens.py @@ -163,6 +163,7 @@ class TokenType(AutoName): CURRENT_ROW = auto() CURRENT_TIME = auto() CURRENT_TIMESTAMP = auto() + CURRENT_USER = auto() DEFAULT = auto() DELETE = auto() DESC = auto() @@ -506,6 +507,7 @@ class Tokenizer(metaclass=_Tokenizer): "CURRENT ROW": TokenType.CURRENT_ROW, "CURRENT_TIME": TokenType.CURRENT_TIME, "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP, + "CURRENT_USER": TokenType.CURRENT_USER, "DATABASE": TokenType.DATABASE, "DEFAULT": TokenType.DEFAULT, "DELETE": TokenType.DELETE, @@ -908,7 +910,7 @@ class Tokenizer(metaclass=_Tokenizer): if not word: if self._char in self.SINGLE_TOKENS: - self._add(self.SINGLE_TOKENS[self._char]) # type: ignore + self._add(self.SINGLE_TOKENS[self._char], text=self._char) # type: ignore return self._scan_var() return @@ -921,7 +923,8 @@ class Tokenizer(metaclass=_Tokenizer): return self._advance(size - 1) - self._add(self.KEYWORDS[word.upper()]) + word = word.upper() + self._add(self.KEYWORDS[word], text=word) def _scan_comment(self, comment_start: str) -> bool: if comment_start not in self._COMMENTS: # type: ignore @@ -946,7 +949,7 @@ class Tokenizer(metaclass=_Tokenizer): # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. # Multiple consecutive comments are preserved by appending them to the current comments list. - if comment_start_line == self._prev_token_line: + if comment_start_line == self._prev_token_line or self._end: self.tokens[-1].comments.extend(self._comments) self._comments = [] self._prev_token_line = self._line diff --git a/sqlglot/transforms.py b/sqlglot/transforms.py index 2eafb0b..62728d5 100644 --- a/sqlglot/transforms.py +++ b/sqlglot/transforms.py @@ -114,8 +114,8 @@ def eliminate_qualify(expression: exp.Expression) -> exp.Expression: def remove_precision_parameterized_types(expression: exp.Expression) -> exp.Expression: """ - Some dialects only allow the precision for parameterized types to be defined in the DDL and not in other expressions. - This transforms removes the precision from parameterized types in expressions. + Some dialects only allow the precision for parameterized types to be defined in the DDL and not in + other expressions. This transforms removes the precision from parameterized types in expressions. """ return expression.transform( lambda node: exp.DataType( diff --git a/tests/dialects/test_clickhouse.py b/tests/dialects/test_clickhouse.py index d206bb1..40a3a04 100644 --- a/tests/dialects/test_clickhouse.py +++ b/tests/dialects/test_clickhouse.py @@ -5,6 +5,7 @@ class TestClickhouse(Validator): dialect = "clickhouse" def test_clickhouse(self): + self.validate_identity("SELECT match('abc', '([a-z]+)')") self.validate_identity("dictGet(x, 'y')") self.validate_identity("SELECT * FROM x FINAL") self.validate_identity("SELECT * FROM x AS y FINAL") diff --git a/tests/dialects/test_dialect.py b/tests/dialects/test_dialect.py index 0805e9c..3558d62 100644 --- a/tests/dialects/test_dialect.py +++ b/tests/dialects/test_dialect.py @@ -290,6 +290,60 @@ class TestDialect(Validator): read={"postgres": "INET '127.0.0.1/32'"}, ) + def test_decode(self): + self.validate_identity("DECODE(bin, charset)") + + self.validate_all( + "SELECT DECODE(a, 1, 'one')", + write={ + "": "SELECT CASE WHEN a = 1 THEN 'one' END", + "oracle": "SELECT CASE WHEN a = 1 THEN 'one' END", + "redshift": "SELECT CASE WHEN a = 1 THEN 'one' END", + "snowflake": "SELECT CASE WHEN a = 1 THEN 'one' END", + "spark": "SELECT CASE WHEN a = 1 THEN 'one' END", + }, + ) + self.validate_all( + "SELECT DECODE(a, 1, 'one', 'default')", + write={ + "": "SELECT CASE WHEN a = 1 THEN 'one' ELSE 'default' END", + "oracle": "SELECT CASE WHEN a = 1 THEN 'one' ELSE 'default' END", + "redshift": "SELECT CASE WHEN a = 1 THEN 'one' ELSE 'default' END", + "snowflake": "SELECT CASE WHEN a = 1 THEN 'one' ELSE 'default' END", + "spark": "SELECT CASE WHEN a = 1 THEN 'one' ELSE 'default' END", + }, + ) + self.validate_all( + "SELECT DECODE(a, NULL, 'null')", + write={ + "": "SELECT CASE WHEN a IS NULL THEN 'null' END", + "oracle": "SELECT CASE WHEN a IS NULL THEN 'null' END", + "redshift": "SELECT CASE WHEN a IS NULL THEN 'null' END", + "snowflake": "SELECT CASE WHEN a IS NULL THEN 'null' END", + "spark": "SELECT CASE WHEN a IS NULL THEN 'null' END", + }, + ) + self.validate_all( + "SELECT DECODE(a, b, c)", + write={ + "": "SELECT CASE WHEN a = b OR (a IS NULL AND b IS NULL) THEN c END", + "oracle": "SELECT CASE WHEN a = b OR (a IS NULL AND b IS NULL) THEN c END", + "redshift": "SELECT CASE WHEN a = b OR (a IS NULL AND b IS NULL) THEN c END", + "snowflake": "SELECT CASE WHEN a = b OR (a IS NULL AND b IS NULL) THEN c END", + "spark": "SELECT CASE WHEN a = b OR (a IS NULL AND b IS NULL) THEN c END", + }, + ) + self.validate_all( + "SELECT DECODE(tbl.col, 'some_string', 'foo')", + write={ + "": "SELECT CASE WHEN tbl.col = 'some_string' THEN 'foo' END", + "oracle": "SELECT CASE WHEN tbl.col = 'some_string' THEN 'foo' END", + "redshift": "SELECT CASE WHEN tbl.col = 'some_string' THEN 'foo' END", + "snowflake": "SELECT CASE WHEN tbl.col = 'some_string' THEN 'foo' END", + "spark": "SELECT CASE WHEN tbl.col = 'some_string' THEN 'foo' END", + }, + ) + def test_if_null(self): self.validate_all( "SELECT IFNULL(1, NULL) FROM foo", diff --git a/tests/dialects/test_duckdb.py b/tests/dialects/test_duckdb.py index a15e6b4..245d82a 100644 --- a/tests/dialects/test_duckdb.py +++ b/tests/dialects/test_duckdb.py @@ -74,6 +74,17 @@ class TestDuckDB(Validator): "spark": "TO_TIMESTAMP(x, 'M/d/yy h:mm a')", }, ) + self.validate_all( + "CAST(start AS TIMESTAMPTZ) AT TIME ZONE 'America/New_York'", + read={ + "snowflake": "CONVERT_TIMEZONE('America/New_York', CAST(start AS TIMESTAMPTZ))", + }, + write={ + "bigquery": "TIMESTAMP(DATETIME(CAST(start AS TIMESTAMPTZ), 'America/New_York'))", + "duckdb": "CAST(start AS TIMESTAMPTZ) AT TIME ZONE 'America/New_York'", + "snowflake": "CONVERT_TIMEZONE('America/New_York', CAST(start AS TIMESTAMPTZ))", + }, + ) def test_sample(self): self.validate_all( @@ -421,6 +432,18 @@ class TestDuckDB(Validator): "snowflake": "CAST(COL AS ARRAY)", }, ) + self.validate_all( + "CAST([STRUCT_PACK(a := 1)] AS STRUCT(a BIGINT)[])", + write={ + "duckdb": "CAST(LIST_VALUE({'a': 1}) AS STRUCT(a BIGINT)[])", + }, + ) + self.validate_all( + "CAST([[STRUCT_PACK(a := 1)]] AS STRUCT(a BIGINT)[][])", + write={ + "duckdb": "CAST(LIST_VALUE(LIST_VALUE({'a': 1})) AS STRUCT(a BIGINT)[][])", + }, + ) def test_bool_or(self): self.validate_all( diff --git a/tests/dialects/test_hive.py b/tests/dialects/test_hive.py index 0161f1e..1a83575 100644 --- a/tests/dialects/test_hive.py +++ b/tests/dialects/test_hive.py @@ -689,3 +689,11 @@ class TestHive(Validator): self.validate_identity("'\\z'") self.validate_identity("'\\\z'") self.validate_identity("'\\\\z'") + + def test_data_type(self): + self.validate_all( + "CAST(a AS BIT)", + write={ + "hive": "CAST(a AS BOOLEAN)", + }, + ) diff --git a/tests/dialects/test_mysql.py b/tests/dialects/test_mysql.py index 5059d05..f618728 100644 --- a/tests/dialects/test_mysql.py +++ b/tests/dialects/test_mysql.py @@ -204,6 +204,41 @@ class TestMySQL(Validator): }, ) + def test_match_against(self): + self.validate_all( + "MATCH(col1, col2, col3) AGAINST('abc')", + read={ + "": "MATCH(col1, col2, col3) AGAINST('abc')", + "mysql": "MATCH(col1, col2, col3) AGAINST('abc')", + }, + write={ + "": "MATCH(col1, col2, col3) AGAINST('abc')", + "mysql": "MATCH(col1, col2, col3) AGAINST('abc')", + }, + ) + self.validate_all( + "MATCH(col1, col2) AGAINST('abc' IN NATURAL LANGUAGE MODE)", + write={"mysql": "MATCH(col1, col2) AGAINST('abc' IN NATURAL LANGUAGE MODE)"}, + ) + self.validate_all( + "MATCH(col1, col2) AGAINST('abc' IN NATURAL LANGUAGE MODE WITH QUERY EXPANSION)", + write={ + "mysql": "MATCH(col1, col2) AGAINST('abc' IN NATURAL LANGUAGE MODE WITH QUERY EXPANSION)" + }, + ) + self.validate_all( + "MATCH(col1, col2) AGAINST('abc' IN BOOLEAN MODE)", + write={"mysql": "MATCH(col1, col2) AGAINST('abc' IN BOOLEAN MODE)"}, + ) + self.validate_all( + "MATCH(col1, col2) AGAINST('abc' WITH QUERY EXPANSION)", + write={"mysql": "MATCH(col1, col2) AGAINST('abc' WITH QUERY EXPANSION)"}, + ) + self.validate_all( + "MATCH(a.b) AGAINST('abc')", + write={"mysql": "MATCH(a.b) AGAINST('abc')"}, + ) + def test_mysql(self): self.validate_all( "SELECT a FROM tbl FOR UPDATE", diff --git a/tests/dialects/test_presto.py b/tests/dialects/test_presto.py index 1762e7a..1007899 100644 --- a/tests/dialects/test_presto.py +++ b/tests/dialects/test_presto.py @@ -539,6 +539,16 @@ class TestPresto(Validator): "hive": "SELECT a, b, c, d, SUM(y) FROM z GROUP BY d, GROUPING SETS ((b, c)), CUBE (a), ROLLUP (a)", }, ) + self.validate_all( + "JSON_FORMAT(x)", + read={ + "spark": "TO_JSON(x)", + }, + write={ + "presto": "JSON_FORMAT(x)", + "spark": "TO_JSON(x)", + }, + ) def test_encode_decode(self): self.validate_all( diff --git a/tests/dialects/test_redshift.py b/tests/dialects/test_redshift.py index ff730f8..0933051 100644 --- a/tests/dialects/test_redshift.py +++ b/tests/dialects/test_redshift.py @@ -69,9 +69,11 @@ class TestRedshift(Validator): self.validate_all( "DECODE(x, a, b, c, d)", write={ - "": "MATCHES(x, a, b, c, d)", - "oracle": "DECODE(x, a, b, c, d)", - "snowflake": "DECODE(x, a, b, c, d)", + "": "CASE WHEN x = a OR (x IS NULL AND a IS NULL) THEN b WHEN x = c OR (x IS NULL AND c IS NULL) THEN d END", + "oracle": "CASE WHEN x = a OR (x IS NULL AND a IS NULL) THEN b WHEN x = c OR (x IS NULL AND c IS NULL) THEN d END", + "redshift": "CASE WHEN x = a OR (x IS NULL AND a IS NULL) THEN b WHEN x = c OR (x IS NULL AND c IS NULL) THEN d END", + "snowflake": "CASE WHEN x = a OR (x IS NULL AND a IS NULL) THEN b WHEN x = c OR (x IS NULL AND c IS NULL) THEN d END", + "spark": "CASE WHEN x = a OR (x IS NULL AND a IS NULL) THEN b WHEN x = c OR (x IS NULL AND c IS NULL) THEN d END", }, ) self.validate_all( @@ -97,9 +99,6 @@ class TestRedshift(Validator): ) def test_identity(self): - self.validate_identity( - "SELECT DECODE(COL1, 'replace_this', 'with_this', 'replace_that', 'with_that')" - ) self.validate_identity("CAST('bla' AS SUPER)") self.validate_identity("CREATE TABLE real1 (realcol REAL)") self.validate_identity("CAST('foo' AS HLLSKETCH)") diff --git a/tests/dialects/test_snowflake.py b/tests/dialects/test_snowflake.py index 940fa50..eb423a5 100644 --- a/tests/dialects/test_snowflake.py +++ b/tests/dialects/test_snowflake.py @@ -6,6 +6,11 @@ class TestSnowflake(Validator): dialect = "snowflake" def test_snowflake(self): + self.validate_identity("SELECT HLL(*)") + self.validate_identity("SELECT HLL(a)") + self.validate_identity("SELECT HLL(DISTINCT t.a)") + self.validate_identity("SELECT HLL(a, b, c)") + self.validate_identity("SELECT HLL(DISTINCT a, b, c)") self.validate_identity("$x") self.validate_identity("SELECT REGEXP_LIKE(a, b, c)") self.validate_identity("PUT file:///dir/tmp.csv @%table") @@ -376,14 +381,10 @@ class TestSnowflake(Validator): }, ) self.validate_all( - "DECODE(x, a, b, c, d)", - read={ - "": "MATCHES(x, a, b, c, d)", - }, + "DECODE(x, a, b, c, d, e)", write={ - "": "MATCHES(x, a, b, c, d)", - "oracle": "DECODE(x, a, b, c, d)", - "snowflake": "DECODE(x, a, b, c, d)", + "": "CASE WHEN x = a OR (x IS NULL AND a IS NULL) THEN b WHEN x = c OR (x IS NULL AND c IS NULL) THEN d ELSE e END", + "snowflake": "CASE WHEN x = a OR (x IS NULL AND a IS NULL) THEN b WHEN x = c OR (x IS NULL AND c IS NULL) THEN d ELSE e END", }, ) diff --git a/tests/dialects/test_spark.py b/tests/dialects/test_spark.py index b12f272..0da2931 100644 --- a/tests/dialects/test_spark.py +++ b/tests/dialects/test_spark.py @@ -345,3 +345,13 @@ TBLPROPERTIES ( "SELECT a, LOGICAL_OR(b) FROM table GROUP BY a", write={"spark": "SELECT a, BOOL_OR(b) FROM table GROUP BY a"}, ) + + def test_current_user(self): + self.validate_all( + "CURRENT_USER", + write={"spark": "CURRENT_USER()"}, + ) + self.validate_all( + "CURRENT_USER()", + write={"spark": "CURRENT_USER()"}, + ) diff --git a/tests/dialects/test_sqlite.py b/tests/dialects/test_sqlite.py index fd9e52b..583d5be 100644 --- a/tests/dialects/test_sqlite.py +++ b/tests/dialects/test_sqlite.py @@ -12,7 +12,7 @@ class TestSQLite(Validator): self.validate_identity("INSERT OR ROLLBACK INTO foo (x, y) VALUES (1, 2)") self.validate_all( - "CREATE TABLE foo (id INTEGER PRIMARY KEY ASC)", + "CREATE TABLE foo (id INTEGER PRIMARY KEY ASC)", write={"sqlite": "CREATE TABLE foo (id INTEGER PRIMARY KEY ASC)"}, ) self.validate_all( diff --git a/tests/dialects/test_tsql.py b/tests/dialects/test_tsql.py index 60867be..d9ee4ae 100644 --- a/tests/dialects/test_tsql.py +++ b/tests/dialects/test_tsql.py @@ -547,11 +547,11 @@ WHERE def test_string(self): self.validate_all( "SELECT N'test'", - write={"spark": "SELECT N'test'"}, + write={"spark": "SELECT 'test'"}, ) self.validate_all( "SELECT n'test'", - write={"spark": "SELECT N'test'"}, + write={"spark": "SELECT 'test'"}, ) self.validate_all( "SELECT '''test'''", @@ -621,3 +621,13 @@ WHERE "tsql": """SELECT "x" FROM "a"."b" FOR SYSTEM_TIME ALL AS alias""", }, ) + + def test_current_user(self): + self.validate_all( + "SUSER_NAME()", + write={"spark": "CURRENT_USER()"}, + ) + self.validate_all( + "SUSER_SNAME()", + write={"spark": "CURRENT_USER()"}, + ) diff --git a/tests/fixtures/identity.sql b/tests/fixtures/identity.sql index 5fab65b..54e5583 100644 --- a/tests/fixtures/identity.sql +++ b/tests/fixtures/identity.sql @@ -666,6 +666,7 @@ INSERT INTO x VALUES (1, 'a', 2.0) INSERT INTO x VALUES (1, 'a', 2.0), (1, 'a', 3.0), (X(), y[1], z.x) INSERT INTO y (a, b, c) SELECT a, b, c FROM x INSERT INTO y (SELECT 1) UNION (SELECT 2) +INSERT INTO result_table (WITH test AS (SELECT * FROM source_table) SELECT * FROM test) INSERT OVERWRITE TABLE x IF EXISTS SELECT * FROM y INSERT OVERWRITE TABLE a.b IF EXISTS SELECT * FROM y INSERT OVERWRITE DIRECTORY 'x' SELECT 1 @@ -728,6 +729,8 @@ SELECT * INTO newevent FROM event SELECT * INTO TEMPORARY newevent FROM event SELECT * INTO UNLOGGED newevent FROM event ALTER TABLE integers ADD COLUMN k INT +ALTER TABLE integers ADD COLUMN k INT FIRST +ALTER TABLE integers ADD COLUMN k INT AFTER m ALTER TABLE integers ADD COLUMN IF NOT EXISTS k INT ALTER TABLE IF EXISTS integers ADD COLUMN k INT ALTER TABLE integers ADD COLUMN l INT DEFAULT 10 diff --git a/tests/fixtures/optimizer/optimizer.sql b/tests/fixtures/optimizer/optimizer.sql index c5112b2..9e7880c 100644 --- a/tests/fixtures/optimizer/optimizer.sql +++ b/tests/fixtures/optimizer/optimizer.sql @@ -462,6 +462,7 @@ SELECT FROM "db1"."tbl" AS "tbl" CROSS JOIN "db2"."tbl" AS "tbl_2"; +# execute: false SELECT *, IFF( diff --git a/tests/fixtures/optimizer/qualify_columns.sql b/tests/fixtures/optimizer/qualify_columns.sql index df65e65..74e2d0a 100644 --- a/tests/fixtures/optimizer/qualify_columns.sql +++ b/tests/fixtures/optimizer/qualify_columns.sql @@ -35,6 +35,9 @@ SELECT 1 AS "1", 2 + 3 AS _col_1 FROM x AS x; SELECT a + b FROM x; SELECT x.a + x.b AS _col_0 FROM x AS x; +SELECT l.a FROM x l WHERE a IN (select a FROM x ORDER by a); +SELECT l.a AS a FROM x AS l WHERE l.a IN (SELECT x.a AS a FROM x AS x ORDER BY a); + # execute: false SELECT a, SUM(b) FROM x WHERE a > 1 AND b > 1 GROUP BY a; SELECT x.a AS a, SUM(x.b) AS _col_1 FROM x AS x WHERE x.a > 1 AND x.b > 1 GROUP BY x.a; @@ -46,15 +49,14 @@ SELECT SUM(a) AS a FROM x HAVING SUM(a) > 3; SELECT SUM(x.a) AS a FROM x AS x HAVING SUM(x.a) > 3; SELECT SUM(a) AS c FROM x HAVING c > 3; -SELECT SUM(x.a) AS c FROM x AS x HAVING c > 3; +SELECT SUM(x.a) AS c FROM x AS x HAVING SUM(x.a) > 3; # execute: false SELECT SUM(a) AS a FROM x HAVING a > 3; -SELECT SUM(x.a) AS a FROM x AS x HAVING a > 3; +SELECT SUM(x.a) AS a FROM x AS x HAVING SUM(x.a) > 3; -# execute: false -SELECT SUM(a) AS c FROM x HAVING SUM(c) > 3; -SELECT SUM(x.a) AS c FROM x AS x HAVING SUM(c) > 3; +SELECT SUM(a) AS c FROM x HAVING SUM(b) > 3; +SELECT SUM(x.a) AS c FROM x AS x HAVING SUM(x.b) > 3; SELECT a AS j, b FROM x ORDER BY j; SELECT x.a AS j, x.b AS b FROM x AS x ORDER BY j; @@ -95,6 +97,7 @@ SELECT COALESCE(x.a) AS d FROM x AS x JOIN y AS y ON x.b = y.b GROUP BY COALESCE SELECT a + 1 AS d FROM x WHERE d > 1; SELECT x.a + 1 AS d FROM x AS x WHERE x.a + 1 > 1; +# execute: false SELECT a + 1 AS d, d + 2 FROM x; SELECT x.a + 1 AS d, x.a + 1 + 2 AS _col_1 FROM x AS x; @@ -124,6 +127,10 @@ SELECT DATE_TRUNC('week', x.a) AS a FROM x AS x; SELECT DATE_TRUNC(a, MONTH) AS a FROM x; SELECT DATE_TRUNC(x.a, MONTH) AS a FROM x AS x; +# execute: false +SELECT x FROM READ_PARQUET('path.parquet', hive_partition=1); +SELECT _q_0.x AS x FROM READ_PARQUET('path.parquet', hive_partition = 1) AS _q_0; + -------------------------------------- -- Derived tables -------------------------------------- @@ -262,11 +269,9 @@ SELECT x.a AS d, x.b AS b FROM x AS x; SELECT * EXCEPT(b) REPLACE(a AS d) FROM x; SELECT x.a AS d FROM x AS x; -# execute: false SELECT x.* EXCEPT(a), y.* FROM x, y; SELECT x.b AS b, y.b AS b, y.c AS c FROM x AS x, y AS y; -# execute: false SELECT * EXCEPT(a) FROM x; SELECT x.b AS b FROM x AS x; @@ -338,12 +343,11 @@ SELECT t.c AS c FROM x AS x LATERAL VIEW EXPLODE(x.a) t AS c; SELECT aa FROM x, UNNEST(a) AS t(aa); SELECT t.aa AS aa FROM x AS x, UNNEST(x.a) AS t(aa); -# execute: false # dialect: bigquery +# execute: false SELECT aa FROM x, UNNEST(a) AS aa; SELECT aa AS aa FROM x AS x, UNNEST(x.a) AS aa; -# execute: false # dialect: presto SELECT x.a, i.b FROM x CROSS JOIN UNNEST(SPLIT(b, ',')) AS i(b); SELECT x.a AS a, i.b AS b FROM x AS x CROSS JOIN UNNEST(SPLIT(x.b, ',')) AS i(b); diff --git a/tests/fixtures/optimizer/simplify.sql b/tests/fixtures/optimizer/simplify.sql index 08e8700..54ec64b 100644 --- a/tests/fixtures/optimizer/simplify.sql +++ b/tests/fixtures/optimizer/simplify.sql @@ -282,6 +282,9 @@ x * (1 - y); -1 + 3; 2; +1 - 2 - 4; +-5; + -(-1); 1; @@ -307,19 +310,22 @@ x * (1 - y); 0.0219; 1 / 3; -0; +1 / 3; + +1 / 3.0; +0.3333333333333333333333333333; 20.0 / 6; 3.333333333333333333333333333; 10 / 5; -2; +10 / 5; (1.0 * 3) * 4 - 2 * (5 / 2); -8.0; +12.0 - 2 * (5 / 2); 6 - 2 + 4 * 2 + a; -a + 12; +12 + a; a + 1 + 1 + 2; a + 4; @@ -376,7 +382,7 @@ interval '1' year + date '1998-01-01'; CAST('1999-01-01' AS DATE); interval '1' year + date '1998-01-01' + 3 * 7 * 4; -84 + CAST('1999-01-01' AS DATE); +CAST('1999-01-01' AS DATE) + 84; date '1998-12-01' - interval '90' foo; CAST('1998-12-01' AS DATE) - INTERVAL '90' foo; diff --git a/tests/fixtures/optimizer/tpc-ds/tpc-ds.sql b/tests/fixtures/optimizer/tpc-ds/tpc-ds.sql index b92ad37..d9a06cc 100644 --- a/tests/fixtures/optimizer/tpc-ds/tpc-ds.sql +++ b/tests/fixtures/optimizer/tpc-ds/tpc-ds.sql @@ -6145,7 +6145,7 @@ WITH web_v1 AS ( SELECT ws_item_sk item_sk, d_date, - sum(Sum(ws_sales_price)) OVER (partition BY ws_item_sk ORDER BY d_date rows BETWEEN UNBOUNDED PRECEDING AND CURRENT row) cume_sales + sum(Sum(ws_sales_price)) OVER (partition BY ws_item_sk ORDER BY d_date rows BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) cume_sales FROM web_sales , date_dim WHERE ws_sold_date_sk=d_date_sk @@ -6156,7 +6156,7 @@ WITH web_v1 AS ( SELECT ss_item_sk item_sk, d_date, - sum(sum(ss_sales_price)) OVER (partition BY ss_item_sk ORDER BY d_date rows BETWEEN UNBOUNDED PRECEDING AND CURRENT row) cume_sales + sum(sum(ss_sales_price)) OVER (partition BY ss_item_sk ORDER BY d_date rows BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) cume_sales FROM store_sales , date_dim WHERE ss_sold_date_sk=d_date_sk @@ -6171,8 +6171,8 @@ FROM ( d_date , web_sales , store_sales , - max(web_sales) OVER (partition BY item_sk ORDER BY d_date rows BETWEEN UNBOUNDED PRECEDING AND CURRENT row) web_cumulative , - max(store_sales) OVER (partition BY item_sk ORDER BY d_date rows BETWEEN UNBOUNDED PRECEDING AND CURRENT row) store_cumulative + max(web_sales) OVER (partition BY item_sk ORDER BY d_date rows BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) web_cumulative , + max(store_sales) OVER (partition BY item_sk ORDER BY d_date rows BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) store_cumulative FROM ( SELECT CASE @@ -6206,7 +6206,7 @@ WITH "date_dim_2" AS ( SELECT "web_sales"."ws_item_sk" AS "item_sk", "date_dim"."d_date" AS "d_date", - SUM(SUM("web_sales"."ws_sales_price")) OVER (PARTITION BY "web_sales"."ws_item_sk" ORDER BY "date_dim"."d_date" rows BETWEEN UNBOUNDED PRECEDING AND CURRENT row) AS "cume_sales" + SUM(SUM("web_sales"."ws_sales_price")) OVER (PARTITION BY "web_sales"."ws_item_sk" ORDER BY "date_dim"."d_date" rows BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS "cume_sales" FROM "web_sales" AS "web_sales" JOIN "date_dim_2" AS "date_dim" ON "web_sales"."ws_sold_date_sk" = "date_dim"."d_date_sk" @@ -6219,7 +6219,7 @@ WITH "date_dim_2" AS ( SELECT "store_sales"."ss_item_sk" AS "item_sk", "date_dim"."d_date" AS "d_date", - SUM(SUM("store_sales"."ss_sales_price")) OVER (PARTITION BY "store_sales"."ss_item_sk" ORDER BY "date_dim"."d_date" rows BETWEEN UNBOUNDED PRECEDING AND CURRENT row) AS "cume_sales" + SUM(SUM("store_sales"."ss_sales_price")) OVER (PARTITION BY "store_sales"."ss_item_sk" ORDER BY "date_dim"."d_date" rows BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS "cume_sales" FROM "store_sales" AS "store_sales" JOIN "date_dim_2" AS "date_dim" ON "store_sales"."ss_sold_date_sk" = "date_dim"."d_date_sk" @@ -6242,12 +6242,12 @@ WITH "date_dim_2" AS ( WHEN NOT "web"."item_sk" IS NULL THEN "web"."item_sk" ELSE "store"."item_sk" - END ORDER BY CASE WHEN NOT "web"."d_date" IS NULL THEN "web"."d_date" ELSE "store"."d_date" END rows BETWEEN UNBOUNDED PRECEDING AND CURRENT row) AS "web_cumulative", + END ORDER BY CASE WHEN NOT "web"."d_date" IS NULL THEN "web"."d_date" ELSE "store"."d_date" END rows BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS "web_cumulative", MAX("store"."cume_sales") OVER (PARTITION BY CASE WHEN NOT "web"."item_sk" IS NULL THEN "web"."item_sk" ELSE "store"."item_sk" - END ORDER BY CASE WHEN NOT "web"."d_date" IS NULL THEN "web"."d_date" ELSE "store"."d_date" END rows BETWEEN UNBOUNDED PRECEDING AND CURRENT row) AS "store_cumulative" + END ORDER BY CASE WHEN NOT "web"."d_date" IS NULL THEN "web"."d_date" ELSE "store"."d_date" END rows BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS "store_cumulative" FROM "web_v1" AS "web" FULL JOIN "store_v1" AS "store" ON "web"."d_date" = "store"."d_date" AND "web"."item_sk" = "store"."item_sk" diff --git a/tests/test_executor.py b/tests/test_executor.py index c455f3a..6bf7d6a 100644 --- a/tests/test_executor.py +++ b/tests/test_executor.py @@ -1,3 +1,4 @@ +import datetime import unittest from datetime import date @@ -513,6 +514,8 @@ class TestExecutor(unittest.TestCase): self.assertEqual(result.rows, [(3,)]) def test_scalar_functions(self): + now = datetime.datetime.now() + for sql, expected in [ ("CONCAT('a', 'b')", "ab"), ("CONCAT('a', NULL)", None), @@ -569,6 +572,26 @@ class TestExecutor(unittest.TestCase): ("NULL IS NOT NULL", False), ("NULL = NULL", None), ("NULL <> NULL", None), + ("YEAR(CURRENT_TIMESTAMP)", now.year), + ("MONTH(CURRENT_TIME)", now.month), + ("DAY(CURRENT_DATETIME())", now.day), + ("YEAR(CURRENT_DATE())", now.year), + ("MONTH(CURRENT_DATE())", now.month), + ("DAY(CURRENT_DATE())", now.day), + ("YEAR(CURRENT_TIMESTAMP) + 1", now.year + 1), + ( + "YEAR(CURRENT_TIMESTAMP) IN (YEAR(CURRENT_TIMESTAMP) + 1, YEAR(CURRENT_TIMESTAMP) * 10)", + False, + ), + ("YEAR(CURRENT_TIMESTAMP) = (YEAR(CURRENT_TIMESTAMP))", True), + ("YEAR(CURRENT_TIMESTAMP) <> (YEAR(CURRENT_TIMESTAMP))", False), + ("YEAR(CURRENT_DATE()) + 1", now.year + 1), + ( + "YEAR(CURRENT_DATE()) IN (YEAR(CURRENT_DATE()) + 1, YEAR(CURRENT_DATE()) * 10)", + False, + ), + ("YEAR(CURRENT_DATE()) = (YEAR(CURRENT_DATE()))", True), + ("YEAR(CURRENT_DATE()) <> (YEAR(CURRENT_DATE()))", False), ]: with self.subTest(sql): result = execute(f"SELECT {sql}") diff --git a/tests/test_expressions.py b/tests/test_expressions.py index c22f13e..b09b2ab 100644 --- a/tests/test_expressions.py +++ b/tests/test_expressions.py @@ -194,30 +194,31 @@ class TestExpressions(unittest.TestCase): def test_replace_placeholders(self): self.assertEqual( exp.replace_placeholders( - parse_one("select * from :tbl1 JOIN :tbl2 ON :col1 = :col2 WHERE :col3 > 100"), - tbl1="foo", - tbl2="bar", - col1="a", - col2="b", - col3="c", + parse_one("select * from :tbl1 JOIN :tbl2 ON :col1 = :str1 WHERE :col2 > :int1"), + tbl1=exp.to_identifier("foo"), + tbl2=exp.to_identifier("bar"), + col1=exp.to_identifier("a"), + col2=exp.to_identifier("c"), + str1="b", + int1=100, ).sql(), - "SELECT * FROM foo JOIN bar ON a = b WHERE c > 100", + "SELECT * FROM foo JOIN bar ON a = 'b' WHERE c > 100", ) self.assertEqual( exp.replace_placeholders( - parse_one("select * from ? JOIN ? ON ? = ? WHERE ? > 100"), - "foo", - "bar", - "a", + parse_one("select * from ? JOIN ? ON ? = ? WHERE ? = 'bla'"), + exp.to_identifier("foo"), + exp.to_identifier("bar"), + exp.to_identifier("a"), "b", - "c", + "bla", ).sql(), - "SELECT * FROM foo JOIN bar ON a = b WHERE c > 100", + "SELECT * FROM foo JOIN bar ON a = 'b' WHERE 'bla' = 'bla'", ) self.assertEqual( exp.replace_placeholders( parse_one("select * from ? WHERE ? > 100"), - "foo", + exp.to_identifier("foo"), ).sql(), "SELECT * FROM foo WHERE ? > 100", ) @@ -229,12 +230,12 @@ class TestExpressions(unittest.TestCase): ) self.assertEqual( exp.replace_placeholders( - parse_one("select * from (SELECT :col1 FROM ?) WHERE :col2 > 100"), - "tbl1", - "tbl2", + parse_one("select * from (SELECT :col1 FROM ?) WHERE :col2 > ?"), + exp.to_identifier("tbl1"), + 100, "tbl3", - col1="a", - col2="b", + col1=exp.to_identifier("a"), + col2=exp.to_identifier("b"), col3="c", ).sql(), "SELECT * FROM (SELECT a FROM tbl1) WHERE b > 100", @@ -526,6 +527,7 @@ class TestExpressions(unittest.TestCase): self.assertIsInstance(parse_one("VARIANCE(a)"), exp.Variance) self.assertIsInstance(parse_one("VARIANCE_POP(a)"), exp.VariancePop) self.assertIsInstance(parse_one("YEAR(a)"), exp.Year) + self.assertIsInstance(parse_one("HLL(a)"), exp.Hll) def test_column(self): column = parse_one("a.b.c.d") diff --git a/tests/test_optimizer.py b/tests/test_optimizer.py index 597fa6f..d077570 100644 --- a/tests/test_optimizer.py +++ b/tests/test_optimizer.py @@ -106,7 +106,6 @@ class TestOptimizer(unittest.TestCase): ): title = meta.get("title") or f"{i}, {sql}" dialect = meta.get("dialect") - execute = execute if meta.get("execute") is None else False leave_tables_isolated = meta.get("leave_tables_isolated") func_kwargs = {**kwargs} @@ -114,7 +113,13 @@ class TestOptimizer(unittest.TestCase): func_kwargs["leave_tables_isolated"] = string_to_bool(leave_tables_isolated) future = pool.submit(parse_and_optimize, func, sql, dialect, **func_kwargs) - results[future] = (sql, title, expected, dialect, execute) + results[future] = ( + sql, + title, + expected, + dialect, + execute if meta.get("execute") is None else False, + ) for future in as_completed(results): optimized = future.result() diff --git a/tests/test_tokens.py b/tests/test_tokens.py index 909eb18..8481f4d 100644 --- a/tests/test_tokens.py +++ b/tests/test_tokens.py @@ -13,6 +13,7 @@ class TestTokens(unittest.TestCase): ("foo --comment", ["comment"]), ("foo", []), ("foo /*comment 1*/ /*comment 2*/", ["comment 1", "comment 2"]), + ("foo\n-- comment", [" comment"]), ] for sql, comment in sql_comment: -- cgit v1.2.3