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264 Commits

Author SHA1 Message Date
Nick Pope 06c5d3fafc Fixed #32060 -- Added Random database function. 2020-10-02 06:58:03 +02:00
Hasan Ramezani a046bcadbe
Fixed #31916 -- Fixed combined queryset crash when combining with ordered combined querysets. 2020-09-17 08:26:06 +02:00
Simon Charette f6405c0b8e Fixed #31965 -- Adjusted multi-table fast-deletion on MySQL/MariaDB. 
The optimization introduced in 7acef095d7 did not properly handle
deletion involving filters against aggregate annotations.

It initially was surfaced by a MariaDB test failure but misattributed
to an undocumented change in behavior that resulted in the systemic
generation of poorly performing database queries in 5b83bae031.

Thanks Anton Plotkin for the report.

Refs #23576.
 2020-08-31 08:11:28 +02:00
Simon Charette 51297a9232 Fixed #31792 -- Made Exists() reuse QuerySet.exists() optimizations. 
The latter is already optimized to limit the number of results, avoid
selecting unnecessary fields, and drop ordering if possible without
altering the semantic of the query.
 2020-08-13 14:10:36 +02:00
Daniel Hillier 60626162f7 Fixed #31866 -- Fixed locking proxy models in QuerySet.select_for_update(of=()). 2020-08-11 11:55:10 +02:00
Hasan Ramezani 037a624120 Fixed #31657 -- Fixed ordering by attnames of self-referential ForeignKeys. 2020-06-10 11:14:26 +02:00
Laurent Tramoy 2aac176e86 Fixed #31614 -- Fixed aliases ordering by OrderBy() expressions of combined queryset. 2020-05-26 21:14:45 +02:00
Simon Charette 972000420e Fixed #31624 -- Avoided subquery usage on QuerySet.all().delete(). 
Thanks Adam Johnson for the report.

Regression in 7acef095d7.
 2020-05-25 08:14:49 +02:00
Manuel Weitzman a4e6030904 Fixed #30375 -- Added FOR NO KEY UPDATE support to QuerySet.select_for_update() on PostgreSQL. 2020-05-21 10:51:10 +02:00
Mariusz Felisiak 3a941230c8
Fixed #31584 -- Fixed crash when chaining values()/values_list() after Exists() annotation and aggregation on Oracle. 
Oracle requires the EXISTS expression to be wrapped in a CASE WHEN in
the GROUP BY clause.

Regression in efa1908f66.
 2020-05-14 15:07:08 +02:00
Jon Dufresne d6aff369ad Refs #30116 -- Simplified regex match group access with Match.__getitem__(). 
The method has been available since Python 3.6. The shorter syntax is
also marginally faster.
 2020-05-11 12:01:28 +02:00
Adam Johnson 67f9d076cf
Avoided unnecessary recompilation of ordering clause regex in SQLCompiler. 2020-04-22 20:28:01 +02:00
Adam Johnson c06d7c9239 Refs #31403 -- Made SQLInsertCompiler.execute_sql() always return an iterable of rows. 
List of tuples.
 2020-03-31 07:12:11 +02:00
Jon Dufresne 013147fae2 Fixed #31285 -- Fixed inherited Meta.ordering of "-pk". 2020-03-19 12:57:07 +01:00
Abhijeet Viswa 1712a76b9d Fixed #31246 -- Fixed locking models in QuerySet.select_for_update(of=()) for related fields and parent link fields with multi-table inheritance. 
Partly regression in 0107e3d105.
 2020-02-11 20:43:57 +01:00
Nick Pope 335c9c94ac Simplified imports from django.db and django.contrib.gis.db. 2020-02-04 13:20:06 +01:00
Mariusz Felisiak 6b178a3e93
Fixed #31217 -- Made QuerySet.values()/values_list() group by not selected annotations with aggregations used in order_by(). 
Regression in 59b4e99dd0.

Thanks Jon Dufresne for the report and Simon Charette for the review.
 2020-02-03 07:48:11 +01:00
Simon Charette 5a4d7285bd Fixed #31094 -- Included columns referenced by subqueries in GROUP BY on aggregations. 
Thanks Johannes Hoppe for the report.

Regression in fb3f034f1c.

Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>
 2019-12-19 10:04:56 +01:00
Mariusz Felisiak 0107e3d105
Fixed #30953 -- Made select_for_update() lock queryset's model when using "self" with multi-table inheritance. 
Thanks Abhijeet Viswa for the report and initial patch.
 2019-12-02 07:57:19 +01:00
Simon Charette 3ca77e2b84 Replaced QueryWrapper single usage with RawSQL. 2019-11-18 10:45:24 +01:00
Simon Charette 7acef095d7 Fixed #23576 -- Implemented multi-alias fast-path deletion in MySQL backend. 
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.
 2019-10-24 12:24:53 +02:00
Hasan Ramezani 6a75cea76a Fixed #30854 -- Fixed QuerySet.select_related() with multiple FilteredRelations. 2019-10-11 08:10:48 +02:00
Hasan Ramezani e1ae2b0050 Refs #30854 -- Moved local_setter() outside the loop in SQLCompiler.get_related_selections(). 2019-10-11 08:07:07 +02:00
Mariusz Felisiak 01104368ff Refs #29444 -- Removed redundant DatabaseFeatures.can_return_multiple_columns_from_insert. 
Unnecessary since b31e63879e.
 2019-09-24 10:37:22 +02:00
Johannes Hoppe b31e63879e Fixed #29444 -- Allowed returning multiple fields from INSERT statements on Oracle. 2019-09-24 10:22:43 +02:00
Mariusz Felisiak 0ddb4ebf7b Refs #14357 -- Made Meta.ordering not affect GROUP BY queries. 
Per deprecation timeline.
 2019-09-10 12:01:00 +02:00
Vojtech Bocek b1d37fea8f Fixed #28107 -- Added DatabaseFeatures.allows_group_by_selected_pks_on_model() to allow enabling optimization for unmanaged models. 2019-09-09 14:04:46 +02:00
Johannes Hoppe 7254f1138d Refs #29444 -- Allowed returning multiple fields from INSERT statements on PostgreSQL. 
Thanks Florian Apolloner, Tim Graham, Simon Charette, Nick Pope, and
Mariusz Felisiak for reviews.
 2019-09-09 10:51:14 +02:00
Simon Charette fff5186d32 Refs #25367 -- Moved select_format hook to BaseExpression. 
This will expose an intermediary hook for expressions that need special
formatting when used in a SELECT clause.
 2019-08-13 06:48:14 +02:00
Mariusz Felisiak 7a42cfcfdc
Refs #30557 -- Fixed crash of ordering by ptr fields when Meta.ordering contains F() expressions. 
Thanks Can Sarıgöl for the report.

Follow up to 8c5f9906c5.
 2019-07-11 13:40:36 +02:00
Hasan Ramezani 8c5f9906c5 Fixed #30557 -- Fixed crash of ordering by ptr fields when Meta.ordering contains expressions. 2019-07-11 11:24:59 +02:00
Johannes Hoppe bc91f27a86 Refs #29444 -- Added support for fetching a returned non-integer insert values on Oracle. 
This is currently not actively used, since the ORM will ask the
SQL compiler to only return auto fields.
 2019-07-08 08:53:08 +02:00
can 2cbd3967e0 Fixed #29834 -- Fixed column mismatch crash with QuerySet.values()/values_list() and order_by() on combined querysets. 2019-06-19 12:11:28 +02:00
Mariusz Felisiak 14d026cccb
Fixed #30572 -- Prevented values()/values_list() on combined queryset from mutating the list of columns in querysets. 2019-06-19 10:44:53 +02:00
Mariusz Felisiak f6075fb333 Fixed #26192 -- Fixed crash of ordering by constants on PostgreSQL. 
Thanks Simon Charette for the review.
 2019-05-31 07:38:48 +02:00
Mariusz Felisiak f8b8b00f01
Fixed #30501 -- Preventing QuerySet.reverse() from mutating expressions in QuerySet.order_by and Meta.ordering. 2019-05-23 20:33:37 +02:00
ruchit2801 04042b2b44 Fixed #30463 -- Fixed crash of deprecation message when Meta.ordering contains expressions. 
Regression in 1b1f64ee5a.
 2019-05-18 19:29:00 +02:00
can 567b9928a3 Fixed #29692 -- Fixed removing ordering parts for multiline RawSQL expressions. 2019-05-03 07:37:37 +02:00
can c00b4dbda2 Fixed #29810 -- Fixed crash of select_related() on FilteredRelation with empty result. 2019-04-23 13:48:33 +02:00
can d87bd29c4f Fixed #30335, #29139 -- Fixed crash when ordering or aggregating over a nested JSONField key transform. 2019-04-18 07:16:50 +02:00
Simon Charette 3a505c70e7 Refs #27149, #29542 -- Simplified subquery parentheses wrapping logic. 2019-03-21 20:42:26 -04:00
Hasan Ramezani 741ce81a42 Fixed #29619 -- Added field names to some FieldErrors. 2019-02-14 18:58:08 -05:00
Nick Pope 24b82cd201 Fixed #30159 -- Removed unneeded use of OrderedDict. 
Dicts preserve order since Python 3.6.
 2019-02-06 13:48:39 -05:00
Johannes Hoppe b131f9c79f Refs #29444 -- Renamed DatabaseFeatures.can_return_id* to be generic for other columns. 2019-01-30 15:31:56 -05:00
Tim Graham da5eb3d56c Refs #28370 -- Removed support for the context arg of Field.from_db_value() and Expression.convert_value(). 
Per deprecation timeline.
 2019-01-17 10:52:19 -05:00
Sergey Fedoseev b86bb47818 Fixed #30093 -- Fixed ordering of combined queryset ordered by F expressions. 2019-01-14 10:28:11 -05:00
Mariusz Felisiak f9a33e3c3f Fixed #29932 -- Fixed combining compound queries with sub-compound queries on SQLite and Oracle. 2018-12-06 15:31:33 -05:00
Ramiro Morales 1b1f64ee5a Refs #14357 -- Deprecated Meta.ordering affecting GROUP BY queries. 
Thanks Ramiro Morales for contributing to the patch.
 2018-09-13 12:29:48 -04:00
Mariusz Felisiak 39461a83c3
Fixed #29694 -- Fixed column mismatch crash with QuerySet.values() or values_list() after combining querysets with extra() with union(), difference(), or intersection(). 
Regression in 0b66c3b442.
 2018-08-29 10:00:15 +02:00
Tom f1fbef6cd1 Fixed #28668 -- Allowed QuerySet.bulk_create() to ignore insert conflicts. 2018-08-03 17:40:46 -04:00