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authorTom Lane <tgl@sss.pgh.pa.us>2016-08-24 22:20:01 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2016-08-24 22:20:01 -0400
commit46bd14a108ffde3e0db68ccae0fd88a4128c8e84 (patch)
tree4d8a1ad959b55b04f61d8abefa3c5f594e7d8e4e /src/backend/access/transam/parallel.c
parent25fe5f758c10c52b96497b04658382c2bb577e8f (diff)
downloadpostgresql-46bd14a108ffde3e0db68ccae0fd88a4128c8e84.tar.gz
postgresql-46bd14a108ffde3e0db68ccae0fd88a4128c8e84.zip
Fix small query-lifespan memory leak in bulk updates.
When there is an identifiable REPLICA IDENTITY index on the target table, heap_update leaks the id_attrs bitmapset. That's not many bytes, but it adds up over enough rows, since the code typically runs in a query-lifespan context. Bug introduced in commit e55704d8b, which did a rather poor job of cloning the existing use-pattern for RelationGetIndexAttrBitmap(). Per bug #14293 from Zhou Digoal. Back-patch to 9.4 where the bug was introduced. Report: <20160824114320.15676.45171@wrigleys.postgresql.org>
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