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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2018-04-20 11:44:09 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2018-04-20 14:36:00 -0400 |
| commit | 43f278356d94b5342a1020a9a97feea0bb7cd88f (patch) | |
| tree | ce38c527faf41b0e31b3a5e616cb75e9574e5ef5 /doc | |
| parent | 65ba2606be7f0eef2736270a099940ab2c218c4d (diff) | |
| download | sqlalchemy-43f278356d94b5342a1020a9a97feea0bb7cd88f.tar.gz | |
Refactor "get" to allow for pluggable identity token schemes
Fixed regression in 1.2 within sharded query feature where the
new "identity_token" element was not being correctly considered within
the scope of a lazy load operation, when searching the identity map
for a related many-to-one element. The new behavior will allow for
making use of the "id_chooser" in order to determine the best identity
key to retrieve from the identity map. In order to achieve this, some
refactoring of 1.2's "identity_token" approach has made some slight changes
to the implementation of ``ShardedQuery`` which should be noted for other
derivations of this class.
Change-Id: I04fa60535deec2d0cdec89f602935dfebeb9eb9d
Fixes: #4228
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/build/changelog/unreleased_12/4228.rst | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/build/changelog/unreleased_12/4228.rst b/doc/build/changelog/unreleased_12/4228.rst new file mode 100644 index 000000000..c0e503e3b --- /dev/null +++ b/doc/build/changelog/unreleased_12/4228.rst @@ -0,0 +1,13 @@ +.. change:: + :tags: bug, orm + :tickets: 4228 + + Fixed regression in 1.2 within sharded query feature where the + new "identity_token" element was not being correctly considered within + the scope of a lazy load operation, when searching the identity map + for a related many-to-one element. The new behavior will allow for + making use of the "id_chooser" in order to determine the best identity + key to retrieve from the identity map. In order to achieve this, some + refactoring of 1.2's "identity_token" approach has made some slight changes + to the implementation of ``ShardedQuery`` which should be noted for other + derivations of this class. |