Clean up handling of variable-free qual clauses. System now does the

right thing with variable-free clauses that contain noncachable functions,
such as 'WHERE random() < 0.5' --- these are evaluated once per
potential output tuple.  Expressions that contain only Params are
now candidates to be indexscan quals --- for example, 'var = ($1 + 1)'
can now be indexed.  Cope with RelabelType nodes atop potential indexscan
variables --- this oversight prevents 7.0.* from recognizing some
potentially indexscanable situations.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/include/executor/nodeNestloop.h b/src/include/executor/nodeNestloop.h
index b1242b0da0d..42e3fae8335 100644
--- a/src/include/executor/nodeNestloop.h
+++ b/src/include/executor/nodeNestloop.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: nodeNestloop.h,v 1.12 2000/01/26 05:58:05 momjian Exp $
+ * $Id: nodeNestloop.h,v 1.13 2000/08/13 02:50:20 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -16,7 +16,7 @@
 
 #include "nodes/plannodes.h"
 
-extern TupleTableSlot *ExecNestLoop(NestLoop *node, Plan *parent);
+extern TupleTableSlot *ExecNestLoop(NestLoop *node);
 extern bool ExecInitNestLoop(NestLoop *node, EState *estate, Plan *parent);
 extern int	ExecCountSlotsNestLoop(NestLoop *node);
 extern void ExecEndNestLoop(NestLoop *node);