From 8a3631f8d86cdd9b07c577d6e213b1fc824db255 Mon Sep 17 00:00:00 2001
From: Teodor Sigaev <teodor@sigaev.ru>
Date: Tue, 2 May 2006 11:28:56 +0000
Subject: GIN: Generalized Inverted iNdex. text[], int4[], Tsearch2 support for
 GIN.

---
 src/backend/commands/cluster.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'src/backend/commands/cluster.c')

diff --git a/src/backend/commands/cluster.c b/src/backend/commands/cluster.c
index ce85d077a34..18845eecea2 100644
--- a/src/backend/commands/cluster.c
+++ b/src/backend/commands/cluster.c
@@ -11,7 +11,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.144 2006/03/05 15:58:23 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/cluster.c,v 1.145 2006/05/02 11:28:54 teodor Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -376,6 +376,13 @@ check_index_is_clusterable(Relation OldHeap, Oid indexOid, bool recheck)
 							RelationGetRelationName(OldIndex))));
 	}
 
+	if (!OldIndex->rd_am->amclusterable) 
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+			   errmsg("cannot cluster on index \"%s\" because access method does not clusterable",
+			   	RelationGetRelationName(OldIndex))));
+
+
 	/*
 	 * Disallow clustering system relations.  This will definitely NOT work
 	 * for shared relations (we have no way to update pg_class rows in other
-- 
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