Fix for NOT in where clause causing crash.

diff --git a/src/backend/optimizer/path/clausesel.c b/src/backend/optimizer/path/clausesel.c
index 8a0536c7bbea4b3e9a9bb7c322bd517ed74ee94f..0bdca62893f63568f396d90921707a6549b9fce4 100644 (file)
--- a/src/backend/optimizer/path/clausesel.c
+++ b/src/backend/optimizer/path/clausesel.c
@@ -7,7 +7,7 @@
  *
  *
  * 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;
    }
+   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))
    {