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Code Issues 32 Releases Wiki Activity

Refs #17144 -- Removed support for grouping by primary key.

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No core backend require the feature anymore as it was only added to
support a MySQL'ism that has been deprecated since then.
This commit is contained in:
Simon Charette
2022-11-05 12:49:33 -04:00
committed by Mariusz Felisiak
parent 041551d716
commit 5f09ab8c30
5 changed files with 15 additions and 61 deletions
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7
docs/releases/4.2.txt
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@@ -309,7 +309,12 @@ Database backend API
This section describes changes that may be needed in third-party database
backends.
* ...
* ``DatabaseFeatures.allows_group_by_pk`` is removed as it only remained to
accommodate a MySQL extension that has been supplanted by proper functional
dependency detection in MySQL 5.7.15. Note that
``DatabaseFeatures.allows_group_by_selected_pks`` is still supported and
should be enabled if your backend supports functional dependency detection in
``GROUP BY`` clauses as specified by the ``SQL:1999`` standard.
Dropped support for MariaDB 10.3
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