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authorMike Bayer <mike_mp@zzzcomputing.com>2014-10-18 17:56:13 -0400
committerMike Bayer <mike_mp@zzzcomputing.com>2014-10-19 00:01:50 -0400
commit55cad302cee51aff6d2bcda2f2f963004d54e6de (patch)
tree8ed5eba6416b26982dd3d42f81278a91d47410f0 /lib/sqlalchemy/orm/scoping.py
parenta7c1258d0340e94fd12e1b8aaa82ca3e282fb61d (diff)
downloadsqlalchemy-ticket_3230.tar.gz
- A warning is emitted in the case of multiple relationships thatticket_3230
ultimately will populate a foreign key column in conflict with another, where the relationships are attempting to copy values from different source columns. This occurs in the case where composite foreign keys with overlapping columns are mapped to relationships that each refer to a different referenced column. A new documentation section illustrates the example as well as how to overcome the issue by specifying "foreign" columns specifically on a per-relationship basis. fixes #3230
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