From 97c04fad822cdbc8707a69c33ecfb30a5439e975 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Mon, 2 Apr 2001 14:34:25 +0000
Subject: [PATCH] Disable creation of indexes on system tables.

---
 src/backend/catalog/index.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 3b150e5340b..2adb30e1ed8 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.144 2001/03/22 06:16:10 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.145 2001/04/02 14:34:25 momjian Exp $
  *
  *
  * INTERFACE ROUTINES
@@ -864,6 +864,10 @@ index_create(char *heapRelationName,
 		indexInfo->ii_NumKeyAttrs < 1)
 		elog(ERROR, "must index at least one attribute");
 
+	if (heapRelationName && !allow_system_table_mods &&
+		IsSystemRelationName(heapRelationName) && IsNormalProcessingMode())
+		elog(ERROR, "User-defined indexes on system catalogs are not supported");
+
 	/*
 	 * get heap relation oid and open the heap relation
 	 */
-- 
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