| From: | tgl(at)svr1(dot)postgresql(dot)org (Tom Lane) |
|---|---|
| To: | pgsql-committers(at)postgresql(dot)org |
| Subject: | pgsql: While determining the filter clauses for an index scan (either |
| Date: | 2005-04-25 03:58:30 |
| Message-ID: | 20050425035830.D295A5349D@svr1.postgresql.org |
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| Lists: | pgsql-committers |
Log Message:
-----------
While determining the filter clauses for an index scan (either plain
or bitmap), use pred_test to be a little smarter about cases where a
filter clause is logically unnecessary. This may be overkill for the
plain indexscan case, but it's definitely useful for OR'd bitmap scans.
Modified Files:
--------------
pgsql/src/backend/optimizer/path:
indxpath.c (r1.178 -> r1.179)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/path/indxpath.c.diff?r1=1.178&r2=1.179)
pgsql/src/backend/optimizer/plan:
createplan.c (r1.186 -> r1.187)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/plan/createplan.c.diff?r1=1.186&r2=1.187)
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