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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/releases/4.2.6.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/docs/releases/4.2.6.txt b/docs/releases/4.2.6.txt index 23d5f2a04f..d89b5ff6b1 100644 --- a/docs/releases/4.2.6.txt +++ b/docs/releases/4.2.6.txt @@ -12,3 +12,13 @@ Bugfixes * Fixed a regression in Django 4.2.5 where overriding the deprecated ``DEFAULT_FILE_STORAGE`` and ``STATICFILES_STORAGE`` settings in tests caused the main ``STORAGES`` to mutate (:ticket:`34821`). + +* Fixed a regression in Django 4.2 that caused unnecessary casting of string + based fields (``CharField``, ``EmailField``, ``TextField``, ``CICharField``, + ``CIEmailField``, and ``CITextField``) used with the ``__isnull`` lookup on + PostgreSQL. As a consequence, the pre-Django 4.2 indexes didn't match and + were not used by the query planner (:ticket:`34840`). + + You may need to recreate indexes propagated to the database with Django + 4.2 - 4.2.5 as they contain unnecessary ``::text`` casting that is avoided as + of this release. |