3 files changed, 41 insertions, 2 deletions
diff --git a/src/include/commands/discard.h b/src/include/commands/discard.h
new file mode 100644
index 00000000000..f2192392ae4
--- /dev/null
+++ b/src/include/commands/discard.h
@@ -0,0 +1,20 @@
+/*-------------------------------------------------------------------------
+ *
+ * discard.h
+ *	  prototypes for discard.c.
+ *
+ *
+ * Copyright (c) 1996-2007, PostgreSQL Global Development Group
+ *
+ * $PostgreSQL: pgsql/src/include/commands/discard.h,v 1.1 2007/04/26 16:13:13 neilc Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef DISCARD_H
+#define DISCARD_H
+
+#include "nodes/parsenodes.h"
+
+extern void DiscardCommand(DiscardStmt *stmt, bool isTopLevel);
+
+#endif   /* DISCARD_H */
diff --git a/src/include/nodes/nodes.h b/src/include/nodes/nodes.h
index 305be462e10..fc48961c5ca 100644
--- a/src/include/nodes/nodes.h
+++ b/src/include/nodes/nodes.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/nodes/nodes.h,v 1.198 2007/04/02 03:49:41 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/nodes/nodes.h,v 1.199 2007/04/26 16:13:14 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -273,6 +273,7 @@ typedef enum NodeTag
 	T_VariableSetStmt,
 	T_VariableShowStmt,
 	T_VariableResetStmt,
+	T_DiscardStmt,
 	T_CreateTrigStmt,
 	T_DropPropertyStmt,
 	T_CreatePLangStmt,
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h
index dbc29642f06..09cb4ff5031 100644
--- a/src/include/nodes/parsenodes.h
+++ b/src/include/nodes/parsenodes.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.346 2007/04/16 01:14:57 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/nodes/parsenodes.h,v 1.347 2007/04/26 16:13:14 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1871,6 +1871,24 @@ typedef struct VariableResetStmt
 } VariableResetStmt;
 
 /* ----------------------
+ * Discard Statement
+ * ----------------------
+ */
+
+typedef enum DiscardMode
+{
+	DISCARD_ALL,
+	DISCARD_PLANS,
+	DISCARD_TEMP
+} DiscardMode;
+
+typedef struct DiscardStmt
+{
+	NodeTag		type;
+	DiscardMode	target;
+} DiscardStmt;
+
+/* ----------------------
  *		LOCK Statement
  * ----------------------
  */