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path: root/django/db/models/sql/subqueries.py
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* Fixed #33618 -- Fixed MTI updates outside of primary key chain.Simon Charette2022-04-071-1/+1
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* Refs #33476 -- Reformatted code with Black.django-bot2022-02-071-18/+24
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* Fixed #31685 -- Added support for updating conflicts to QuerySet.bulk_create().sean_c_hsu2022-01-191-2/+4
| | | | | Thanks Florian Apolloner, Chris Jerdonek, Hannes Ljungberg, Nick Pope, and Mariusz Felisiak for reviews.
* Refs #32946 -- Changed Query.add_filter() to take two arguments.Keryn Knight2021-07-281-5/+6
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* Fixed #32951 -- Removed Query.where_class & co.Nick Pope2021-07-221-2/+2
| | | | Unused since 3caf957ed5eaa831a485abcb89f27266dbf3e82b.
* Fixed #31910 -- Fixed crash of GIS aggregations over subqueries.Simon Charette2020-11-041-3/+3
| | | | | | | | | | | | | | | | | | | | | | | 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.
* Fixed #31233 -- Closed database connections and cursors after use.Jon Dufresne2020-02-061-1/+4
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* Fixed #23576 -- Implemented multi-alias fast-path deletion in MySQL backend.Simon Charette2019-10-241-35/+0
| | | | | | | | | 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.
* Fixed #28668 -- Allowed QuerySet.bulk_create() to ignore insert conflicts.Tom2018-08-031-1/+2
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* Fixed #28820 -- Eliminated an extra query with QuerySet.update() on proxy ↵Yan Mitrofanov2017-11-211-1/+1
| | | | models.
* Refs #20880 -- Removed non-cloning logic from Query.clone().Anssi Kääriäinen2017-07-311-5/+6
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* Removed useless hasattr in UpdateQuery._setup_query().Tim Graham2017-07-081-2/+1
| | | The if statement always evaluates to True.
* Removed obsolete Query.tables attribute.Anssi Kääriäinen2017-06-291-3/+3
| | | | Obsolete since Query.alias_map became an OrderedDict (refs #26522).
* Refs #27624 -- Made many attributes of Query immutable.Adam Johnson2017-03-081-3/+2
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* Refs #27656 -- Updated django.db docstring verbs according to PEP 257.Anton Samarchyan2017-02-281-22/+8
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* Refs #23919 -- Replaced super(ClassName, self) with super().chillaranand2017-01-251-3/+3
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* Refs #23919 -- Removed most of remaining six usageClaude Paroz2017-01-181-3/+2
| | | | Thanks Tim Graham for the review.
* Fixed #20939 -- Simplified query generation by converting QuerySet to Query.Tim Graham2016-10-281-4/+2
| | | | Thanks Anssi Kääriäinen for the initial patch and Anssi, Simon Charette, and Josh Smeaton for review.
* Removed unused 'field' argument to DeleteQuery.delete_batch().Tim Graham2016-10-151-3/+2
| | | Unused since a170c3f755351beb35f8166ec3c7e9d524d9602d.
* Removed unused InsertQuery.clone().Tim Graham2016-10-131-9/+0
| | | Unknown if it was ever needed.
* Fixed #19513, #18580 -- Fixed crash on QuerySet.update() after annotate().David Sanders2016-06-291-1/+5
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* Fixed E128 flake8 warnings in django/.Tim Graham2016-04-081-2/+1
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* Fixed #25882 -- Prevented fast deletes matching no rows from crashing on MySQL.Simon Charette2015-12-141-1/+1
| | | | | | | Thanks to Trac aliases gerricom for the report, raphaelmerx for the attempts to reproduce and Sergey Fedoseev and Tim for the review. Refs #16891
* Fixed #24509 -- Added Expression support to SQLInsertCompilerAlex Hill2015-09-221-3/+3
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* Fixed #16891 -- Made Model/QuerySet.delete() return the number of deleted ↵Alexander Sosnovskiy2015-05-221-6/+12
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* Sorted imports with isort; refs #23860.Tim Graham2015-02-061-1/+0
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* Fixed #24268 -- removed Query.havingAnssi Kääriäinen2015-02-041-4/+2
| | | | | | | 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.
* Fixed #24164 -- Fixed Oracle GIS limited aggregation test failure.Tim Graham2015-01-301-1/+4
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* Fixed #24020 -- Refactored SQL compiler to use expressionsAnssi Kääriäinen2015-01-081-2/+2
| | | | | | | | | | | | | | | 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.
* Fixed #12663 -- Formalized the Model._meta API for retrieving fields.Daniel Pyrathon2015-01-061-3/+5
| | | | | Thanks to Russell Keith-Magee for mentoring this Google Summer of Code 2014 project and everyone else who helped with the patch!
* Fixed #23867 -- removed DateQuerySet hacksAnssi Kääriäinen2014-11-261-78/+1
| | | | | | The .dates() queries were implemented by using custom Query, QuerySet, and Compiler classes. Instead implement them by using expressions and database converters APIs.
* Fixed #14030 -- Allowed annotations to accept all expressionsJosh Smeaton2014-11-151-2/+2
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* Limited lines to 119 characters in django/Tim Graham2014-09-051-1/+4
| | | | refs #23395.
* Fixed #22826 -- Improved internal usage of Query.setup_joins.Jorge C. Leitão2014-06-141-3/+2
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* Made SQLCompiler.execute_sql(result_type) more explicit.Michael Manfre2014-02-021-4/+4
| | | | | | | | | | 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.
* Fixed #16187 -- refactored ORM lookup systemAnssi Kääriäinen2014-01-181-12/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Fixed E125 pep8 warningsChristopher Medrela2013-11-281-1/+1
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* Fixed #21432 -- DateTimeQuery now copies tzinfo when cloning.Loic Bistuer2013-11-141-0/+5
| | | | Thanks Enrique Martínez for the report and @bmispelon for the tests.
* Fixed #21288 -- Fixed E126 pep8 warningsAlasdair Nicol2013-10-211-1/+1
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* Fix small grammatical error in comment.Andrei Picus2013-09-241-1/+1
| | | | Changed 'there are no filtering' to 'there is no filtering'.
* Minor factorization.Aymeric Augustin2013-09-061-4/+1
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* Fixed #20348 -- Consistently handle Promise objects in model fields.Tai Lee2013-07-311-12/+0
| | | | | | | | | | | 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.
* A large number of stylistic cleanups across django/db/Alex Gaynor2013-07-081-2/+9
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* Replaced an antiquated pattern.Aymeric Augustin2013-05-171-1/+1
| | | | Thanks Lennart Regebro for pointing it out.
* Fixed #20413 - Respect Query.get_meta()Mike Fogel2013-05-151-5/+5
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* Refactored qs.add_q() and utils/tree.pyAnssi Kääriäinen2013-03-131-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | The sql/query.py add_q method did a lot of where/having tree hacking to get complex queries to work correctly. The logic was refactored so that it should be simpler to understand. The new logic should also produce leaner WHERE conditions. The changes cascade somewhat, as some other parts of Django (like add_filter() and WhereNode) expect boolean trees in certain format or they fail to work. So to fix the add_q() one must fix utils/tree.py, some things in add_filter(), WhereNode and so on. This commit also fixed add_filter to see negate clauses up the path. A query like .exclude(Q(reversefk__in=a_list)) didn't work similarly to .filter(~Q(reversefk__in=a_list)). The reason for this is that only the immediate parent negate clauses were seen by add_filter, and thus a tree like AND: (NOT AND: (AND: condition)) will not be handled correctly, as there is one intermediary AND node in the tree. The example tree is generated by .exclude(~Q(reversefk__in=a_list)). Still, aggregation lost connectors in OR cases, and F() objects and aggregates in same filter clause caused GROUP BY problems on some databases. Fixed #17600, fixed #13198, fixed #17025, fixed #17000, fixed #11293.
* Fixed #17260 -- Added time zone aware aggregation and lookups.Aymeric Augustin2013-02-161-9/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Thanks Carl Meyer for the review. Squashed commit of the following: commit 4f290bdb60b7d8534abf4ca901bd0844612dcbda Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Wed Feb 13 21:21:30 2013 +0100 Used '0:00' instead of 'UTC' which doesn't always exist in Oracle. Thanks Ian Kelly for the suggestion. commit 01b6366f3ce67d57a58ca8f25e5be77911748638 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Wed Feb 13 13:38:43 2013 +0100 Made tzname a parameter of datetime_extract/trunc_sql. This is required to work around a bug in Oracle. commit 924a144ef8a80ba4daeeafbe9efaa826566e9d02 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Wed Feb 13 14:47:44 2013 +0100 Added support for parameters in SELECT clauses. commit b4351d2890cd1090d3ff2d203fe148937324c935 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Mon Feb 11 22:30:22 2013 +0100 Documented backwards incompatibilities in the two previous commits. commit 91ef84713c81bd455f559dacf790e586d08cacb9 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Mon Feb 11 09:42:31 2013 +0100 Used QuerySet.datetimes for the admin's date_hierarchy. commit 0d0de288a5210fa106cd4350961eb2006535cc5c Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Mon Feb 11 09:29:38 2013 +0100 Used QuerySet.datetimes in date-based generic views. commit 9c0859ff7c0b00734afe7fc15609d43d83215072 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:43:25 2013 +0100 Implemented QuerySet.datetimes on Oracle. commit 68ab511a4ffbd2b811bf5da174d47e4dd90f28fc Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:43:14 2013 +0100 Implemented QuerySet.datetimes on MySQL. commit 22d52681d347a8cdf568dc31ed032cbc61d049ef Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:42:29 2013 +0100 Implemented QuerySet.datetimes on SQLite. commit f6800fd04c93722b45f9236976389e0b2fe436f5 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:43:03 2013 +0100 Implemented QuerySet.datetimes on PostgreSQL. commit 0c829c23f4cf4d6804cadcc93032dd4c26b8c65e Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:41:08 2013 +0100 Added datetime-handling infrastructure in the ORM layers. commit 104d82a7778cf3f0f5d03dfa53709c26df45daad Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Mon Feb 11 10:05:55 2013 +0100 Updated null_queries tests to avoid clashing with the __second lookup. commit c01bbb32358201b3ac8cb4291ef87b7612a2b8e6 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 23:07:41 2013 +0100 Updated tests of .dates(). Replaced .dates() by .datetimes() for DateTimeFields. Replaced dates with datetimes in the expected output for DateFields. commit 50fb7a52462fecf0127b38e7f3df322aeb287c43 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 21:40:09 2013 +0100 Updated and added tests for QuerySet.datetimes. commit a8451a5004c437190e264667b1e6fb8acc3c1eeb Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 22:34:46 2013 +0100 Documented the new time lookups and updated the date lookups. commit 29413eab2bd1d5e004598900c0dadc0521bbf4d3 Author: Aymeric Augustin <aymeric.augustin@m4x.org> Date: Sun Feb 10 16:15:49 2013 +0100 Documented QuerySet.datetimes and updated QuerySet.dates.
* Fixed #19500 -- Solved a regression in join reuseAnssi Kääriäinen2012-12-201-1/+0
| | | | | | | | | | | | | | | The ORM didn't reuse joins for direct foreign key traversals when using chained filters. For example: qs.filter(fk__somefield=1).filter(fk__somefield=2)) produced two joins. As a bonus, reverse onetoone filters can now reuse joins correctly The regression was caused by the join() method refactor in commit 68847135bc9acb2c51c2d36797d0a85395f0cd35 Thanks for Simon Charette for spotting some issues with the first draft of the patch.
* Fixed #19190 -- Refactored Query select clause attributesAnssi Kääriäinen2012-10-271-2/+2
| | | | | | | | | The Query.select and Query.select_fields were collapsed into one list because the attributes had to be always in sync. Now that they are in one attribute it is impossible to edit them out of sync. Similar collapse was done for Query.related_select_cols and Query.related_select_fields.
* Fixed regression caused by #19102Anssi Kääriäinen2012-10-251-2/+2
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