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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2003-01-28 22:13:41 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2003-01-28 22:13:41 +0000 |
| commit | 2e46b762eb1c15de2bcda785469a753a753747fb (patch) | |
| tree | 54bb20d645df6e5bede49e6c405a93b137c65a20 /src/backend/optimizer/plan/subselect.c | |
| parent | 955a1f81a702489102b2526e24631b9f51e14247 (diff) | |
| download | postgresql-2e46b762eb1c15de2bcda785469a753a753747fb.tar.gz postgresql-2e46b762eb1c15de2bcda785469a753a753747fb.zip | |
Extend join-selectivity API (oprjoin interface) so that join type is
passed to join selectivity estimators. Make use of this in eqjoinsel
to derive non-bogus selectivity for IN clauses. Further tweaking of
cost estimation for IN.
initdb forced because of pg_proc.h changes.
Diffstat (limited to 'src/backend/optimizer/plan/subselect.c')
| -rw-r--r-- | src/backend/optimizer/plan/subselect.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/optimizer/plan/subselect.c b/src/backend/optimizer/plan/subselect.c index 5f420f37250..9f56a9f38d5 100644 --- a/src/backend/optimizer/plan/subselect.c +++ b/src/backend/optimizer/plan/subselect.c @@ -7,7 +7,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/optimizer/plan/subselect.c,v 1.68 2003/01/20 18:54:53 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/optimizer/plan/subselect.c,v 1.69 2003/01/28 22:13:35 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -351,7 +351,7 @@ make_subplan(SubLink *slink, List *lefthand, bool isTopQual) qualsel = clauselist_selectivity(subquery, plan->qual, - 0); + 0, JOIN_INNER); /* Is 10% selectivity a good threshold?? */ use_material = qualsel < 0.10; } |