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 846d52140c..67900d9e40 100644 --- a/src/backend/optimizer/path/clausesel.c +++ b/src/backend/optimizer/path/clausesel.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/optimizer/path/clausesel.c,v 1.58 2003/05/27 17:49:46 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/optimizer/path/clausesel.c,v 1.59 2003/06/29 00:33:43 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -515,6 +515,12 @@ clause_selectivity(Query *root, */ s1 = (Selectivity) 0.5; } + else if (IsA(clause, DistinctExpr) || + IsA(clause, ScalarArrayOpExpr)) + { + /* can we do better? */ + s1 = (Selectivity) 0.5; + } else if (IsA(clause, NullTest)) { /* Use node specific selectivity calculation function */ |