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| author | Juan Alvarez <juan@sytex.io> | 2023-08-15 16:53:30 -0300 |
|---|---|---|
| committer | Mariusz Felisiak <felisiak.mariusz@gmail.com> | 2023-08-19 11:23:59 +0200 |
| commit | 46b2b08e4531012357dc359809588cbd61a38225 (patch) | |
| tree | 0833508625a9dce1b188ca7a07ac4259feb36b6e /docs | |
| parent | d34db6602e89387ae9ddc9ae94defe5c838acb88 (diff) | |
[4.2.x] Fixed #34779 -- Avoided unnecessary selection of non-nullable m2m fields without natural keys during serialization.
By using `select_related(None)` instead of `select_related()`, the
unnecessary joins are completely avoided. Note that the current tests
already covers the change, when the field is not `null=True`.
Regression in f9936deed1ff13b20e18bd9ca2b0750b52706b6c.
Backport of 517d3bb4dd17e9c51690c98d747b86a0ed8b2fbf from main
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/releases/4.2.5.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/releases/4.2.5.txt b/docs/releases/4.2.5.txt index 480b21d902..96b32d6dfc 100644 --- a/docs/releases/4.2.5.txt +++ b/docs/releases/4.2.5.txt @@ -16,3 +16,7 @@ Bugfixes * Fixed a bug in Django 4.2 where the deprecated ``DEFAULT_FILE_STORAGE`` and ``STATICFILES_STORAGE`` settings were not synced with ``STORAGES`` (:ticket:`34773`). + +* Fixed a regression in Django 4.2.2 that caused an unnecessary selection of a + non-nullable ``ManyToManyField`` without a natural key during serialization + (:ticket:`34779`). |