diff options
Diffstat (limited to 'src/backend/optimizer/path/clausesel.c')
| -rw-r--r-- | src/backend/optimizer/path/clausesel.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/backend/optimizer/path/clausesel.c b/src/backend/optimizer/path/clausesel.c index 463408f26fd..ccab70796e6 100644 --- a/src/backend/optimizer/path/clausesel.c +++ b/src/backend/optimizer/path/clausesel.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/path/clausesel.c,v 1.82.2.1 2007/08/31 23:35:29 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/path/clausesel.c,v 1.82.2.2 2008/12/01 21:06:30 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -445,6 +445,12 @@ clause_selectivity(PlannerInfo *root, } /* + * If the clause is marked redundant, always return 1.0. + */ + if (rinfo->this_selec > 1) + return (Selectivity) 1.0; + + /* * If possible, cache the result of the selectivity calculation for * the clause. We can cache if varRelid is zero or the clause * contains only vars of that relid --- otherwise varRelid will affect |