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pgsql: Adjust OR indexscan logic to not generate redundant - Mailing list pgsql-committers

From tgl@svr1.postgresql.org (Tom Lane)
Subject pgsql: Adjust OR indexscan logic to not generate redundant
Date
Msg-id 20050301014052.4C182564C4@svr1.postgresql.org
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Log Message:
-----------
Adjust OR indexscan logic to not generate redundant condition-free OR
indexscans involving partial indexes.  These would always be dominated
by a simple indexscan on such an index, so there's no point in considering
them.  Fixes overoptimism in a patch I applied last October.

Tags:
----
REL8_0_STABLE

Modified Files:
--------------
    pgsql/src/backend/optimizer/path:
        orindxpath.c (r1.64 -> r1.64.4.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/path/orindxpath.c.diff?r1=1.64&r2=1.64.4.1)

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