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[COMMITTERS] pgsql: Allow rel_is_distinct_for() to look through RelabelType belowOp - Mailing list pgsql-committers

From Tom Lane
Subject [COMMITTERS] pgsql: Allow rel_is_distinct_for() to look through RelabelType belowOp
Date
Msg-id E1dtfFZ-0003wL-2O@gemulon.postgresql.org
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Allow rel_is_distinct_for() to look through RelabelType below OpExpr.

This lets it do the right thing for, eg, varchar columns.
Back-patch to 9.5 where this logic appeared.

David Rowley, per report from Kim Rose Carlsen

Discussion: https://postgr.es/m/VI1PR05MB17091F9A9876528055D6A827C76D0@VI1PR05MB1709.eurprd05.prod.outlook.com

Branch
------
REL9_6_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/86e4ebb9af7ed07f11410d568e0fd72427f3b0e3

Modified Files
--------------
src/backend/optimizer/plan/analyzejoins.c | 8 ++++++++
1 file changed, 8 insertions(+)


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