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2026-01-20Fixed #36030 -- Fixed precision loss in division of Decimal literals on SQLite.VIZZARD-X
Thanks Bob Kline for the review.
2026-01-19Fixed #36869 -- Optimized MigrationGraph._generate_plan membership checks.James Fysh
Previously, `_generate_plan()` relied on list membership checks, resulting in quadratic behavior as the plan grew. On large migration graphs this became a significant performance bottleneck. This change uses `OrderedSet` for the plan, reducing the complexity to linear while preserving insertion order and behavior. Co-authored-by: Nick Pope <nick@nickpope.me.uk>
2026-01-18Applied Black's 2026 stable style.Mariusz Felisiak
https://github.com/psf/black/releases/tag/26.1.0
2026-01-16Fixed #36352 -- Improved error message for fields excluded by prior ↵JaeHyuck Sa
values()/values_list() calls. Signed-off-by: JaeHyuck Sa <wogur981208@gmail.com>
2026-01-16Fixed #36822 -- Added parameter limit for PostgreSQL with server-side binding.JaeHyuck Sa
2026-01-16Refs #36822 -- Hoisted bulk_batch_size() implementations to base backend.JaeHyuck Sa
2026-01-14Fixed #36821 -- Treated empty strings as NULL for iexact lookups on Oracle.JaeHyuck Sa
Signed-off-by: JaeHyuck Sa <wogur981208@gmail.com>
2026-01-14Fixed #35402 -- Fixed crash in DatabaseFeatures.django_test_skips when ↵Jacob Walls
running a subset of tests. Thanks Tim Graham for the report and the review.
2026-01-13Fixed #35442 -- Prevented N+1 queries in RelatedManager with only().Samriddha9619
Co-authored-by: Simon Charette <charette.s@gmail.com>
2026-01-12Fixed #36858 -- Optimized `Field._get_default()` for `db_default` case.Adam Johnson
Create and share a single instance of `DatabaseDefault` instead of making a new one each time the lambda is called. The quick benchmark on the ticket shows a ~12% speedup for a large `bulk_create()` operation.
2026-01-09Fixed #36815 -- Optimized insertion of db_default fields in bulk_create().YashRaj1506
Thanks Adam Sołtysik for the implementation idea.
2026-01-06Fixed #29257 -- Caught DatabaseError when attempting to close a possibly ↵VIZZARD-X
already-closed cursor.
2026-01-03Added DatabaseCreation.destroy_test_db_connection_close_method hook.Tim Graham
2025-12-31Refs #33647 -- Fixed silent data truncation in bulk_create on Postgres.Simon Charette
Regression in a16eedcf9c69d8a11d94cac1811018c5b996d491. The UNNEST strategy is affected by the same problem bulk_update has wrt/ to silent data truncation due to its usage of db_type which always returns a parametrized subtype.
2025-12-28Refs #24920 -- Made DecimalField system checks database dependent.Mariusz Felisiak
Thanks Tim Graham for the suggestion.
2025-12-26Fixed #36112 -- Added fallback in last_executed_query() on Oracle and ↵VIZZARD-X
PostgreSQL.
2025-12-22Fixed #36818 -- Ensured SQLite connection before accessing max_query_params.guro-Ishiguro
Regression in 358fd21c47cdf7bda520ce73c5cfd82bba57827b.
2025-12-22Fixed #36787 -- Fixed crash in In lookups with mixed expressions and strings.JaeHyuck Sa
Signed-off-by: JaeHyuck Sa <wogur981208@gmail.com>
2025-12-22Fixed #36508 -- Interpreted __iexact=None on KeyTransforms as __exact=None.Clifford Gama
Thanks Jacob Walls for the report.
2025-12-22Fixed #36806 -- Added system check for null kwarg in GeneratedField.Nilesh Kumar Pahari
The null argument has no effect on GeneratedField since the nullability of the column depends on the database and expression used.
2025-12-22Fixed typo in django/db/backends/base/schema.py comment.사재혁
Signed-off-by: JaeHyuck Sa <wogur981208@gmail.com>
2025-12-19Fixed #36791 -- Made MigrationAutodetector recreate through table when m2m ↵Johanan Oppong Amoateng
target model changes. Co-Authored-By: Jacob Walls <38668450+jacobtylerwalls@users.noreply.github.com> Co-Authored-By: Clifford Gama <cliffygamy@gmail.com>
2025-12-19Fixed #36487 -- Fixed logger error message with partial callbacks.Krishnaprasad MG
2025-12-19Fixed #36808 -- Required name argument in UniqueConstraint signature.Jonathan Biemond
By trading ValueError for TypeError for omitted name arguments, we gain a little clarity.
2025-12-18Fixed #36701 -- Fixed memory leak in ModelState.Samriddha9619
2025-12-17Fixed #27380 -- Added "raw" argument to m2m_changed signals.Mariusz Felisiak
2025-12-17Refs #27380 -- Added ManyRelatedManager.set_base() hook.Mariusz Felisiak
2025-12-17Refs #27380 -- Made ManyRelatedManager.set() use *_base() hooks.Mariusz Felisiak
2025-12-17Refs #27380 -- Made ManyRelatedManager.add()/clear()/remove() implementation ↵Mariusz Felisiak
more consistent. This also adds _add_base(), _clear_base(), and _remove_base() internal hooks.
2025-12-16Fixed #36800 -- Restored ManyToManyField renaming in ↵Clifford Gama
BaseDatabaseSchemaEditor.alter_field(). Regression in f9a44cc0fac653f8e0c2ab1cdfb12b2cc5c63fc2. Now that ManyToManyField is no longer concrete the decision of whether or not it should be altered, which is also relied on by field renaming, should take into consideration name changes even if it doesn't have a column associated with it, as auto-created many-to-many relationship table names are a base of it. Note that there is room for optimization here where a rename can be entirely avoided if ManyToManyField.db_table remains stable between .name changes, just like we do with Field.db_column remaining stable, but since this is a regression and meant to be backported the current patch focuses on correctness over further improvements. Thanks Josik for the report. Co-authored-by: Simon Charette <charette.s@gmail.com>
2025-12-16Fixed #36594 -- Improved UniqueConstraint's nulls_distinct system check message.Mridul Dhall
Clarified that the nulls_distinct argument is not supported, as opposed to certain values for the argument. Thanks Russell Owen for the report.
2025-12-15Fixed #26434 -- Removed faulty clearing of ordering field when missing from ↵Michal Mládek
explicit grouping. Co-authored-by: Simon Charette <charette.s@gmail.com>
2025-12-13Fixed #36765 -- Added support for stored GeneratedFields on Oracle 23ai/26ai ↵Mariusz Felisiak
(23.7+). Thanks Jacob Walls for the review.
2025-12-12Refs #36735 -- Supported shift parameter for UUID7 on PostgreSQL.Lily Acorn
2025-12-12Fixed #36735 -- Added UUID4 and UUID7 database functions.Lily Acorn
Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>
2025-12-10Refs #36025 -- Made get_prep_lookup() pass output_field when wrapping direct ↵Clifford Gama
values in Value. Previously, only strings were supplied with an output_field when wrapping direct value iterable elements in Value expressions for ExpressionList. This caused problems for __in lookups on JSONField when using expressions alongside direct values, as JSONField values can have different types which need to be adapted by the field's get_db_prep_value(). Refs #36689. Thanks Jacob Walls for the review.
2025-12-10Refs #36689 -- Serialized JSONIn rhs parameters wrapped in Value expressions.Clifford Gama
2025-12-10Fixed #36689 -- Fixed top-level JSONField __in lookup failures on MySQL and ↵Clifford Gama
Oracle. Added a JSONIn lookup to handle correct serialization and extraction for JSONField top-level __in queries on backends without native JSON support. KeyTransformIn now subclasses JSONIn. Co-authored-by: Jacob Walls <jacobtylerwalls@gmail.com> Thanks Jacob Walls for the report and review.
2025-12-05Fixed #36722 -- Moved AutoFieldMixin validate_autopk_value() check to ↵Clifford Gama
get_db_prep_save. The validation in validate_autopk_value is specific to saving. Having it in get_db_prep_value caused Value(0, AutoField()) to fail unexpectedly when used in a filter on MySQL. Thanks Jacob Walls for the review.
2025-12-04Added DatabaseFeatures.prohibits_dollar_signs_in_column_aliases.Tim Graham
This is also applicable on CockroachDB.
2025-12-02Fixed CVE-2025-13372 -- Protected FilteredRelation against SQL injection in ↵Jacob Walls
column aliases on PostgreSQL. Follow-up to CVE-2025-57833. Thanks Stackered for the report, and Simon Charette and Mariusz Felisiak for the reviews.
2025-11-24Fixed #36751 -- Fixed empty filtered aggregation crash over annotated queryset.Simon Charette
Regression in b8e5a8a9a2a767f584cbe89a878a42363706f939. Refs #36404. The replace_expressions method was innapropriately dealing with falsey but not None source expressions causing them to also be potentially evaluated when __bool__ was invoked (e.g. QuerySet.__bool__ evaluates the queryset). The changes introduced in b8e5a8a9a2, which were to deal with a similar issue, surfaced the problem as aggregation over an annotated queryset requires an inlining (or pushdown) of aggregate references which is achieved through replace_expressions. In cases where an empty Q object was provided as an aggregate filter, such as when the admin facetting feature was used as reported, it would wrongly be turned into None, instead of an empty WhereNode, causing a crash at aggregate filter compilation. Note that the crash signature differed depending on whether or not the backend natively supports aggregate filtering (supports_aggregate_filter_clause) as the fallback, which makes use Case / When expressions, would result in a TypeError instead of a NoneType AttributeError. Thanks Rafael Urben for the report, Antoliny and Youngkwang Yang for the triage.
2025-11-23Refs #21961 -- Added DatabaseFeatures.supports_on_delete_db_(cascade/null) ↵Tim Graham
feature flags. Needed on MongoDB. Co-Authored-By: Mariusz Felisiak <felisiak.mariusz@gmail.com>
2025-11-21Fixed #36718 -- Added JSONField support for negative array indexing on ↵Clifford Gama
Oracle 21c+.
2025-11-20Fixed #36748 -- Filtered non-standard placeholders from UNNEST queries.Chris Wesseling
2025-11-19Fixed #26609 -- Extended fields.E004 system check for unordered iterables.Mariusz Felisiak
Co-authored-by: Karl Wooster <karl.wooster@alleima.com>
2025-11-18Fixed #36141 -- Checked for applied replaced migrations recursively.Georgi Yanchev
Regression in 64b1ac7292c72d3551b2ad70b2a78c8fe4af3249.
2025-11-17Fixed #24920 -- Added support for DecimalField with no precision.Mariusz Felisiak
Thanks Lily for the review.
2025-11-14Refs #24928 -- Added introspection support for PostgreSQL HStoreField.Mariusz Felisiak
2025-11-13Fixed #36730 -- Fixed constraint validation crash for excluded FK attnames.Adam Johnson
Regression in e44e8327d3d88d86895735c0e427102063ff5b55. Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>
generated by cgit v1.3 (git 2.53.0) at 2026-07-12 19:25:02 +0000