From d13e903beaecd45a3721e4c2a7f9ff842ce94a79 Mon Sep 17 00:00:00 2001
From: Neil Conway <neilc@samurai.com>
Date: Thu, 12 Apr 2007 06:53:49 +0000
Subject: RESET SESSION, plus related new DDL commands. Patch from Marko Kreen,
 reviewed by Neil Conway. This patch adds the following DDL command variants:
 RESET SESSION, RESET TEMP, RESET PLANS, CLOSE ALL, and DEALLOCATE ALL. RESET
 SESSION is intended for use by connection pool software and the like, in
 order to reset a client session to something close to its initial state.

Note that while most of these command variants can be executed
inside a transaction block (but are not transaction-aware!),
RESET SESSION cannot. While this is inconsistent, it is intended
to catch programmer mistakes: RESET SESSION in an open transaction
block is probably unintended.
---
 src/backend/catalog/namespace.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

(limited to 'src/backend/catalog/namespace.c')

diff --git a/src/backend/catalog/namespace.c b/src/backend/catalog/namespace.c
index 6baa9a798b..16853b3d79 100644
--- a/src/backend/catalog/namespace.c
+++ b/src/backend/catalog/namespace.c
@@ -13,7 +13,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/catalog/namespace.c,v 1.93 2007/03/23 19:53:51 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/catalog/namespace.c,v 1.94 2007/04/12 06:53:46 neilc Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1940,6 +1940,26 @@ InitTempTableNamespace(void)
 	baseSearchPathValid = false;	/* need to rebuild list */
 }
 
+/*
+ * Remove all temp tables from the temporary namespace.
+ */
+void
+ResetTempTableNamespace(void)
+{
+	char		namespaceName[NAMEDATALEN];
+	Oid			namespaceId;
+
+	/* find oid */
+	snprintf(namespaceName, sizeof(namespaceName), "pg_temp_%d", MyBackendId);
+	namespaceId = GetSysCacheOid(NAMESPACENAME,
+								 CStringGetDatum(namespaceName),
+								 0, 0, 0);
+
+	/* clean if exists */
+	if (OidIsValid(namespaceId))
+		RemoveTempRelations(namespaceId);
+}
+
 /*
  * End-of-transaction cleanup for namespaces.
  */
-- 
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