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path: root/django/db/models/sql/subqueries.py
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2025-09-22Fixed #35453 -- Made ManyToManyField.concrete False.Ryan P Kilby
ManyToManyField was already excluded from fields, concrete_fields, and local_concrete_fields in Options.
2025-09-04Fixed #36481 -- Fixed QuerySet.update concrete fields check.Ryan P Kilby
FieldError is now emitted for invalid update calls involving reverse relations, where previously they failed with AttributeError.
2025-07-23Refs #36500 -- Rewrapped long docstrings and block comments via a script.django-bot
Rewrapped long docstrings and block comments to 79 characters + newline using script from https://github.com/medmunds/autofix-w505.
2025-01-28Fixed #36120 -- Raised FieldError when targeting a composite primary key ↵Jacob Walls
field with QuerySet.update().
2025-01-03Fixed #35918 -- Added support for execute_sql to directly return row counts.Raphael Gaschignard
2023-09-07Fixed #31300 -- Added GeneratedField model field.Jeremy Nauta
Thanks Adam Johnson and Paolo Melchiorre for reviews. Co-Authored-By: Lily Foote <code@lilyf.org> Co-Authored-By: Mariusz Felisiak <felisiak.mariusz@gmail.com>
2022-04-07Fixed #33618 -- Fixed MTI updates outside of primary key chain.Simon Charette
2022-02-07Refs #33476 -- Reformatted code with Black.django-bot
2022-01-19Fixed #31685 -- Added support for updating conflicts to QuerySet.bulk_create().sean_c_hsu
Thanks Florian Apolloner, Chris Jerdonek, Hannes Ljungberg, Nick Pope, and Mariusz Felisiak for reviews.
2021-07-28Refs #32946 -- Changed Query.add_filter() to take two arguments.Keryn Knight
2021-07-22Fixed #32951 -- Removed Query.where_class & co.Nick Pope
Unused since 3caf957ed5eaa831a485abcb89f27266dbf3e82b.
2020-11-04Fixed #31910 -- Fixed crash of GIS aggregations over subqueries.Simon Charette
Regression was introduced by fff5186 but was due a long standing issue. AggregateQuery was abusing Query.subquery: bool by stashing its compiled inner query's SQL for later use in its compiler which made select_format checks for Query.subquery wrongly assume the provide query was a subquery. This patch prevents that from happening by using a dedicated inner_query attribute which is compiled at a later time by SQLAggregateCompiler. Moving the inner query's compilation to SQLAggregateCompiler.compile had the side effect of addressing a long standing issue with aggregation subquery pushdown which prevented converters from being run. This is now fixed as the aggregation_regress adjustments demonstrate. Refs #25367. Thanks Eran Keydar for the report.
2020-02-06Fixed #31233 -- Closed database connections and cursors after use.Jon Dufresne
2019-10-24Fixed #23576 -- Implemented multi-alias fast-path deletion in MySQL backend.Simon Charette
This required moving the entirety of DELETE SQL generation to the compiler where it should have been in the first place and implementing a specialized compiler on MySQL/MariaDB. The MySQL compiler relies on the "DELETE table FROM table JOIN" syntax for queries spanning over multiple tables.
2018-08-03Fixed #28668 -- Allowed QuerySet.bulk_create() to ignore insert conflicts.Tom
2017-11-21Fixed #28820 -- Eliminated an extra query with QuerySet.update() on proxy ↵Yan Mitrofanov
models.
2017-07-31Refs #20880 -- Removed non-cloning logic from Query.clone().Anssi Kääriäinen
2017-07-08Removed useless hasattr in UpdateQuery._setup_query().Tim Graham
The if statement always evaluates to True.
2017-06-29Removed obsolete Query.tables attribute.Anssi Kääriäinen
Obsolete since Query.alias_map became an OrderedDict (refs #26522).
2017-03-08Refs #27624 -- Made many attributes of Query immutable.Adam Johnson
2017-02-28Refs #27656 -- Updated django.db docstring verbs according to PEP 257.Anton Samarchyan
2017-01-25Refs #23919 -- Replaced super(ClassName, self) with super().chillaranand
2017-01-18Refs #23919 -- Removed most of remaining six usageClaude Paroz
Thanks Tim Graham for the review.
2016-10-28Fixed #20939 -- Simplified query generation by converting QuerySet to Query.Tim Graham
Thanks Anssi Kääriäinen for the initial patch and Anssi, Simon Charette, and Josh Smeaton for review.
2016-10-15Removed unused 'field' argument to DeleteQuery.delete_batch().Tim Graham
Unused since a170c3f755351beb35f8166ec3c7e9d524d9602d.
2016-10-13Removed unused InsertQuery.clone().Tim Graham
Unknown if it was ever needed.
2016-06-29Fixed #19513, #18580 -- Fixed crash on QuerySet.update() after annotate().David Sanders
2016-04-08Fixed E128 flake8 warnings in django/.Tim Graham
2015-12-14Fixed #25882 -- Prevented fast deletes matching no rows from crashing on MySQL.Simon Charette
Thanks to Trac aliases gerricom for the report, raphaelmerx for the attempts to reproduce and Sergey Fedoseev and Tim for the review. Refs #16891
2015-09-22Fixed #24509 -- Added Expression support to SQLInsertCompilerAlex Hill
2015-05-22Fixed #16891 -- Made Model/QuerySet.delete() return the number of deleted ↵Alexander Sosnovskiy
objects.
2015-02-06Sorted imports with isort; refs #23860.Tim Graham
2015-02-04Fixed #24268 -- removed Query.havingAnssi Kääriäinen
Instead of splitting filter clauses to where and having parts before adding them to query.where or query.having, add all filter clauses to query.where, and when compiling the query split the where to having and where parts.
2015-01-30Fixed #24164 -- Fixed Oracle GIS limited aggregation test failure.Tim Graham
2015-01-08Fixed #24020 -- Refactored SQL compiler to use expressionsAnssi Kääriäinen
Refactored compiler SELECT, GROUP BY and ORDER BY generation. While there, also refactored select_related() implementation (get_cached_row() and get_klass_info() are now gone!). Made get_db_converters() method work on expressions instead of internal_type. This allows the backend converters to target specific expressions if need be. Added query.context, this can be used to set per-query state. Also changed the signature of database converters. They now accept context as an argument.
2015-01-06Fixed #12663 -- Formalized the Model._meta API for retrieving fields.Daniel Pyrathon
Thanks to Russell Keith-Magee for mentoring this Google Summer of Code 2014 project and everyone else who helped with the patch!
2014-11-26Fixed #23867 -- removed DateQuerySet hacksAnssi Kääriäinen
The .dates() queries were implemented by using custom Query, QuerySet, and Compiler classes. Instead implement them by using expressions and database converters APIs.
2014-11-15Fixed #14030 -- Allowed annotations to accept all expressionsJosh Smeaton
2014-09-05Limited lines to 119 characters in django/Tim Graham
refs #23395.
2014-06-14Fixed #22826 -- Improved internal usage of Query.setup_joins.Jorge C. Leitão
2014-02-02Made SQLCompiler.execute_sql(result_type) more explicit.Michael Manfre
Updated SQLUpdateCompiler.execute_sql to match the behavior described in the docstring; the 'first non-empty query' will now include all queries, not just the main and first related update. Added CURSOR and NO_RESULTS result_type constants to make the usages more self documenting and allow execute_sql to explicitly close the cursor when it is no longer needed.
2014-01-18Fixed #16187 -- refactored ORM lookup systemAnssi Kääriäinen
Allowed users to specify which lookups or transforms ("nested lookus") are available for fields. The implementation is now class based. Squashed commit of the following: commit fa7a7195f1952a9c8dea7f6e89ee13f81757eda7 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Jan 18 10:53:24 2014 +0200 Added lookup registration API docs commit eb1c8ce164325e0d8641f14202e12486c70efdb6 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Tue Jan 14 18:59:36 2014 +0200 Release notes and other minor docs changes commit 11501c29c9352d17f22f3a0f59d3b805913dedcc Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Jan 12 20:53:03 2014 +0200 Forgot to add custom_lookups tests in prev commit commit 83173b960ea7eb2b24d573f326be59948df33536 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Jan 12 19:59:12 2014 +0200 Renamed Extract -> Transform commit 3b18d9f3a1bcdd93280f79654eba0efa209377bd Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Jan 12 19:51:53 2014 +0200 Removed suggestion of temporary lookup registration from docs commit 21d0c7631c161fc0c67911480be5d3f13f1afa68 Merge: 2509006 f2dc442 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Jan 12 09:38:23 2014 -0800 Merge pull request #2 from mjtamlyn/lookups_3 Reworked custom lookups docs. commit f2dc4429a1da04c858364972eea57a35a868dab4 Author: Marc Tamlyn <marc.tamlyn@gmail.com> Date: Sun Jan 12 13:15:05 2014 +0000 Reworked custom lookups docs. Mostly just formatting and rewording, but also replaced the example using ``YearExtract`` to use an example which is unlikely to ever be possible directly in the ORM. commit 250900650628d1f11beadb22814abd666029fb81 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Jan 12 13:19:13 2014 +0200 Removed unused import commit 4fba5dfaa022653ffa72497258ffd8f8b7476f92 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Jan 11 22:34:41 2014 +0200 Added docs to index commit 6d53963f375c77a1f287833b19b976d23f36c30b Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Jan 11 22:10:24 2014 +0200 Dead code removal commit f9cc0390078e21f1ea5a7bc1f15b09f8f6b0904d Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Jan 11 19:00:43 2014 +0200 A new try for docs commit 33aa18a6e3c831930bda0028222a26f9c1d96e66 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Jan 11 14:57:12 2014 +0200 Renamed get_cols to get_group_by_cols commit c7d5f8661b7d364962bed2e6f81161c1b4f1bcc3 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Jan 11 14:45:53 2014 +0200 Altered query string customization for backends vendors The new way is trying to call first method 'as_' + connection.vendor. If that doesn't exist, then call as_sql(). Also altered how lookup registration is done. There is now RegisterLookupMixin class that is used by Field, Extract and sql.Aggregate. This allows one to register lookups for extracts and aggregates in the same way lookup registration is done for fields. commit 90e7004ec14e15503f828cc9bde2a7dab593814d Merge: 66649ff f7c2c0a Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Jan 11 13:21:01 2014 +0200 Merge branch 'master' into lookups_3 commit 66649ff891c7c73c7eecf6038c9a6802611b5d8a Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Jan 11 13:16:01 2014 +0200 Some rewording in docs commit 31b8faa62714b4b6b6057a9f5cc106c4dd73caab Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Dec 29 15:52:29 2013 +0200 Cleanup based on review comments commit 1016159f34674c0df871ed891cde72be8340bb5d Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Dec 28 18:37:04 2013 +0200 Proof-of-concept fix for #16731 Implemented only for SQLite and PostgreSQL, and only for startswith and istartswith lookups. commit 193cd097ca8f2cc6a911e57b8e3fb726f96ee6a6 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Dec 28 17:57:58 2013 +0200 Fixed #11722 -- iexact=F() produced invalid SQL commit 08ed3c3b49e100ed9019831e770c25c8f61b70f9 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Dec 21 23:59:52 2013 +0200 Made Lookup and Extract available from django.db.models commit b99c8d83c972786c6fcd0e84c9e5cb08c1368300 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Dec 21 23:06:29 2013 +0200 Fixed review notes by Loic commit 049eebc0703c151127f4f0265beceea7b8b39e72 Merge: ed8fab7 b80a835 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Dec 21 22:53:10 2013 +0200 Merge branch 'master' into lookups_3 Conflicts: django/db/models/fields/__init__.py django/db/models/sql/compiler.py django/db/models/sql/query.py tests/null_queries/tests.py commit ed8fab7fe8867ff3eb801c3697a426478387bb2f Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Dec 21 22:47:23 2013 +0200 Made Extracts aware of full lookup path commit 27a57b7aed91b2f346abc4a77da838bffa17c727 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Dec 1 21:10:11 2013 +0200 Removed debugger import commit 074e0f5aca0572e368c11e6d2c73c9026e7d63d7 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Dec 1 21:02:16 2013 +0200 GIS lookup support added commit 760e28e72bae475b442b026650969b0d182dbe53 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Dec 1 20:04:31 2013 +0200 Removed usage of Constraint, used Lookup instead commit eac47766844b90e7d3269e7a8c012eee34ec0093 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Dec 1 02:22:30 2013 +0200 Minor cleanup of Lookup API commit 2adf50428d59a783078b0da3d5d035106640c899 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sun Dec 1 02:14:19 2013 +0200 Added documentation, polished implementation commit 32c04357a87e3727a34f8c5e6ec0114d1fbbb303 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Nov 30 23:10:15 2013 +0200 Avoid OrderedDict creation on lookup aggregate check commit 7c8b3a32cc17b4dbca160921d48125f1631e0df4 Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Sat Nov 30 23:04:34 2013 +0200 Implemented nested lookups But there is no support of using lookups outside filtering yet. commit 4d219d4cdef21d9c14e5d6b9299d583d1975fcba Author: Anssi Kääriäinen <akaariai@gmail.com> Date: Wed Nov 27 22:07:30 2013 +0200 Initial implementation of custom lookups
2013-11-28Fixed E125 pep8 warningsChristopher Medrela
2013-11-14Fixed #21432 -- DateTimeQuery now copies tzinfo when cloning.Loic Bistuer
Thanks Enrique Martínez for the report and @bmispelon for the tests.
2013-10-21Fixed #21288 -- Fixed E126 pep8 warningsAlasdair Nicol
2013-09-24Fix small grammatical error in comment.Andrei Picus
Changed 'there are no filtering' to 'there is no filtering'.
2013-09-06Minor factorization.Aymeric Augustin
2013-07-31Fixed #20348 -- Consistently handle Promise objects in model fields.Tai Lee
All Promise objects were passed to force_text() deep in ORM query code. Not only does this make it difficult or impossible for developers to prevent or alter this behaviour, but it is also wrong for non-text fields. This commit changes `Field.get_prep_value()` from a no-op to one that resolved Promise objects. All subclasses now call super() method first to ensure that they have a real value to work with.
2013-07-08A large number of stylistic cleanups across django/db/Alex Gaynor
2013-05-17Replaced an antiquated pattern.Aymeric Augustin
Thanks Lennart Regebro for pointing it out.
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