From 54840eca2ed26f9f5619553a69e46813a922bd24 Mon Sep 17 00:00:00 2001
From: Tom Lane
Date: Thu, 18 Dec 2003 22:23:42 +0000
Subject: Use a shutdown callback to clear setArgsValid in a FuncExprState that
 is evaluating a set-valued function.  This fixes some additional problems
 with rescanning partially-evaluated SRFs.

---
 src/include/nodes/execnodes.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'src/include')

diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h
index e35e4c2bd8..48385d16f3 100644
--- a/src/include/nodes/execnodes.h
+++ b/src/include/nodes/execnodes.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.108 2003/11/29 22:41:06 pgsql Exp $
+ * $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.109 2003/12/18 22:23:42 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -481,6 +481,13 @@ typedef struct FuncExprState
 	 */
 	bool		setHasSetArg;	/* some argument returns a set */
 
+	/*
+	 * Flag to remember whether we have registered a shutdown callback for
+	 * this FuncExprState.  We do so only if setArgsValid has been true at
+	 * least once (since all the callback is for is to clear setArgsValid).
+	 */
+	bool		shutdown_reg;	/* a shutdown callback is registered */
+
 	/*
 	 * Current argument data for a set-valued function; contains valid
 	 * data only if setArgsValid is true.
-- 
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