diff options
Diffstat (limited to 'src/backend/commands/indexcmds.c')
| -rw-r--r-- | src/backend/commands/indexcmds.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c index 0080a4fe776..094ddefcc7b 100644 --- a/src/backend/commands/indexcmds.c +++ b/src/backend/commands/indexcmds.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/commands/indexcmds.c,v 1.53 2001/07/17 21:53:01 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/commands/indexcmds.c,v 1.54 2001/08/06 18:09:45 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -146,10 +146,12 @@ DefineIndex(char *heapRelationName, /* * Convert the partial-index predicate from parsetree form to * an implicit-AND qual expression, for easier evaluation at runtime. + * While we are at it, we reduce it to a canonical (CNF or DNF) form + * to simplify the task of proving implications. */ if (predicate != NULL && rangetable != NIL) { - cnfPred = cnfify((Expr *) copyObject(predicate), true); + cnfPred = canonicalize_qual((Expr *) copyObject(predicate), true); fix_opids((Node *) cnfPred); CheckPredicate(cnfPred, rangetable, relationId); } |