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Fix for NOT in where clause causing crash.

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This commit is contained in:
Bruce Momjian 1998-11-09 02:49:13 +00:00
parent 39792e5b01
commit f03729c621
1 changed files with 6 additions and 1 deletions
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7
src/backend/optimizer/path/clausesel.c
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@ -7,7 +7,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/clausesel.c,v 1.13 1998/09/01 04:29:29 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/optimizer/path/clausesel.c,v 1.14 1998/11/09 02:49:13 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -254,6 +254,11 @@ compute_selec(Query *root, List *clauses, List *or_selectivities)
*/ */
s1 = 0.1; s1 = 0.1;
} }
else if (not_clause((Node *) clause))
{
/* negate this baby */
return 1 - compute_selec(root, ((Expr *)clause)->args, or_selectivities);
}
else if (is_subplan((Node *) clause)) else if (is_subplan((Node *) clause))
{ {