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authorMike Bayer <mike_mp@zzzcomputing.com>2008-08-12 20:31:14 +0000
committerMike Bayer <mike_mp@zzzcomputing.com>2008-08-12 20:31:14 +0000
commitd98caf9da81c6282cdde00e65fbf8c8b9e8dbd50 (patch)
tree8ab1eb1b1848203ae1ce4db41097c5fb8ef30041 /lib/sqlalchemy/util.py
parent6d01d962290bb3f3973f37c61ee489ca1d94f515 (diff)
downloadsqlalchemy-d98caf9da81c6282cdde00e65fbf8c8b9e8dbd50.tar.gz
- joins along a relation() from a mapped
class to a mapped subclass, where the mapped subclass is configured with single table inheritance, will include an IN clause which limits the subtypes of the joined class to those requsted, within the ON clause of the join. This takes effect for eager load joins as well as query.join(). Note that in some scenarios the IN clause will appear in the WHERE clause of the query as well since this discrimination has multiple trigger points.
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