Implement SEMI and ANTI joins in the planner and executor. (Semijoins replace

[postgresql] / src / backend / optimizer / util / var.c

diff --git a/src/backend/optimizer/util/var.c b/src/backend/optimizer/util/var.c
index 98440795961797201906e2cc695d4c5130437912..290f9bb64bfbbf3154065fb22311757ff248d1cd 100644 (file)
--- a/src/backend/optimizer/util/var.c
+++ b/src/backend/optimizer/util/var.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $PostgreSQL: pgsql/src/backend/optimizer/util/var.c,v 1.74 2008/05/12 00:00:49 alvherre Exp $
+ *       $PostgreSQL: pgsql/src/backend/optimizer/util/var.c,v 1.75 2008/08/14 18:47:59 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -644,23 +644,23 @@ flatten_join_alias_vars_mutator(Node *node,
                /* Recurse in case join input is itself a join */
                return flatten_join_alias_vars_mutator(newvar, context);
        }
-       if (IsA(node, InClauseInfo))
+       if (IsA(node, FlattenedSubLink))
        {
-               /* Copy the InClauseInfo node with correct mutation of subnodes */
-               InClauseInfo *ininfo;
+               /* Copy the FlattenedSubLink node with correct mutation of subnodes */
+               FlattenedSubLink *fslink;
 
-               ininfo = (InClauseInfo *) expression_tree_mutator(node,
+               fslink = (FlattenedSubLink *) expression_tree_mutator(node,
                                                                                         flatten_join_alias_vars_mutator,
-                                                                                                                 (void *) context);
-               /* now fix InClauseInfo's relid sets */
+                                                                                                                        (void *) context);
+               /* now fix FlattenedSubLink's relid sets */
                if (context->sublevels_up == 0)
                {
-                       ininfo->lefthand = alias_relid_set(context->root,
-                                                                                          ininfo->lefthand);
-                       ininfo->righthand = alias_relid_set(context->root,
-                                                                                               ininfo->righthand);
+                       fslink->lefthand = alias_relid_set(context->root,
+                                                                                          fslink->lefthand);
+                       fslink->righthand = alias_relid_set(context->root,
+                                                                                               fslink->righthand);
                }
-               return (Node *) ininfo;
+               return (Node *) fslink;
        }
 
        if (IsA(node, Query))