diff options
| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2016-09-02 11:27:58 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2016-09-02 11:54:16 -0400 |
| commit | ce577d48449588d3e5395c08c7f4d04cb8bb325f (patch) | |
| tree | 7803f9ea8126728b0754218d3aa386bae6e10ddf /doc | |
| parent | f6022839c29f7f96cb9d279aaf2e44e81cafb661 (diff) | |
| download | sqlalchemy-ce577d48449588d3e5395c08c7f4d04cb8bb325f.tar.gz | |
Repair clauselist comparison to account for clause ordering
Fixed bug where the "simple many-to-one" condition that allows lazy
loading to use get() from identity map would fail to be invoked if the
primaryjoin of the relationship had multiple clauses separated by AND
which were not in the same order as that of the primary key columns
being compared in each clause. This ordering
difference occurs for a composite foreign key where the table-bound
columns on the referencing side were not in the same order in the .c
collection as the primary key columns on the referenced side....which
in turn occurs a lot if one is using declarative mixins and/or
declared_attr to set up columns.
Change-Id: I66cce74f614c04ed693dc0d58ac8c952b2f8ae54
Fixes: #3788
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/build/changelog/changelog_11.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/build/changelog/changelog_11.rst b/doc/build/changelog/changelog_11.rst index 88f1ebb24..669f08188 100644 --- a/doc/build/changelog/changelog_11.rst +++ b/doc/build/changelog/changelog_11.rst @@ -22,6 +22,21 @@ :version: 1.1.0 .. change:: + :tags: bug, orm + :tickets: 3788 + + Fixed bug where the "simple many-to-one" condition that allows lazy + loading to use get() from identity map would fail to be invoked if the + primaryjoin of the relationship had multiple clauses separated by AND + which were not in the same order as that of the primary key columns + being compared in each clause. This ordering + difference occurs for a composite foreign key where the table-bound + columns on the referencing side were not in the same order in the .c + collection as the primary key columns on the referenced side....which + in turn occurs a lot if one is using declarative mixins and/or + declared_attr to set up columns. + + .. change:: :tags: bug, sql :tickets: 3786 |