From: mike bayer <mike_mp@zzzcomputing.com>
Date: Tue, 20 Sep 2016 15:56:05 +0000 (-0400)
Subject: Merge "Allow SQL expressions to be set on PK columns"
X-Git-Tag: rel_1_1_0~24
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5af3c903368e9a437a6ceafce5dc993433420cc7;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

Merge "Allow SQL expressions to be set on PK columns"
---

5af3c903368e9a437a6ceafce5dc993433420cc7
diff --cc doc/build/changelog/changelog_11.rst
index 0d6c6b1592,6aa5624dd5..efd2d33f9b
--- a/doc/build/changelog/changelog_11.rst
+++ b/doc/build/changelog/changelog_11.rst
@@@ -21,27 -21,16 +21,37 @@@
  .. changelog::
      :version: 1.1.0
  
 +    .. change::
 +        :tags: bug, sql
 +        :tickets: 3799
 +
 +        The "eq" and "ne" operators are no longer part of the list of
 +        "associative" operators, while they remain considered to be
 +        "commutative".  This allows an expression like ``(x == y) == z``
 +        to be maintained at the SQL level with parenthesis.  Pull request
 +        courtesy John Passaro.
 +
 +    .. change::
 +        :tags: bug, orm
 +        :tickets: 3767
 +
 +        The primaryjoin of a :func:`.relationship` construct can now include
 +        a :func:`.bindparam` object that includes a callable function to
 +        generate values.  Previously, the lazy loader strategy would
 +        be incompatible with this use, and additionally would fail to correctly
 +        detect if the "use_get" criteria should be used if the primary key
 +        were involved with the bound parameter.
 +
+     .. change::
+         :tags: bug, orm
+         :tickets: 3801
+ 
+         An UPDATE emitted from the ORM flush process can now accommodate a
+         SQL expression element for a column within the primary key of an
+         object, if the target database supports RETURNING in order to provide
+         the new value, or if the PK value is set "to itself" for the purposes
+         of bumping some other trigger / onupdate on the column.
+ 
      .. change::
          :tags: bug, orm
          :tickets: 3788