[3.1.x] Refs #31956 -- Doc'd consequences of disabling psycopg2's JSONB typecaster.

Follow up to 0be51d2226.
Backport of 438b85dfab from master
This commit is contained in:
Mariusz Felisiak 2020-09-10 11:00:13 +02:00
parent 4e6b6fac43
commit 6b16623bd9
1 changed files with 4 additions and 1 deletions

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@ -72,7 +72,10 @@ Bugfixes
* Fixed a ``QuerySet.order_by()`` crash on PostgreSQL when ordering and * Fixed a ``QuerySet.order_by()`` crash on PostgreSQL when ordering and
grouping by :class:`~django.db.models.JSONField` with a custom grouping by :class:`~django.db.models.JSONField` with a custom
:attr:`~django.db.models.JSONField.decoder` (:ticket:`31956`). :attr:`~django.db.models.JSONField.decoder` (:ticket:`31956`). As a
consequence, fetching a ``JSONField`` with raw SQL now returns a string
instead of pre-loaded data. You will need to explicitly call ``json.loads()``
in such cases.
* Fixed a ``QuerySet.delete()`` crash on MySQL, following a performance * Fixed a ``QuerySet.delete()`` crash on MySQL, following a performance
regression in Django 3.1 on MariaDB 10.3.2+, when filtering against an regression in Django 3.1 on MariaDB 10.3.2+, when filtering against an