Fix applied for NESTLOOP bug

submitted by: [email protected] (Vadim B. Mikheev)

diff --git a/src/backend/optimizer/util/clauses.c b/src/backend/optimizer/util/clauses.c
index daba4d8fdb052db9fd48e2595b46f6724186fe69..dab4ea88467c6a13a5aa6a93ba1b55d789d7de0d 100644 (file)
--- a/src/backend/optimizer/util/clauses.c
+++ b/src/backend/optimizer/util/clauses.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.1.1.1 1996/07/09 06:21:38 scrappy Exp $
+ *    $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.2 1996/07/25 20:36:46 scrappy Exp $
  *
  * HISTORY
  *    AUTHOR       DATE        MAJOR EVENT
@@ -356,11 +356,21 @@ clause_relids_vars(Node *clause, List **relids, List **vars)
 
     foreach (i, clvars) {
    Var *var = (Var *)lfirst(i);
+   List *vi;
 
    if (!intMember(var->varno, varno_list)) {
        varno_list = lappendi(varno_list, var->varno);
-       var_list = lappend(var_list, var);
    }
+   foreach (vi, var_list)
+   {
+       Var *in_list = (Var *)lfirst(vi);
+       
+       if ( in_list->varno == var->varno && 
+               in_list->varattno == var->varattno )
+           break;
+   }
+   if ( vi == NIL )
+       var_list = lappend(var_list, var);
     }
 
     *relids = varno_list;