*** pgsql/src/backend/utils/cache/relcache.c	2009/01/27 12:40:15	1.284
--- pgsql/src/backend/utils/cache/relcache.c	2009/03/31 17:59:56	1.285
***************
*** 8,14 ****
   *
   *
   * IDENTIFICATION
!  *	  $PostgreSQL: pgsql/src/backend/utils/cache/relcache.c,v 1.283 2009/01/26 19:41:06 alvherre Exp $
   *
   *-------------------------------------------------------------------------
   */
--- 8,14 ----
   *
   *
   * IDENTIFICATION
!  *	  $PostgreSQL: pgsql/src/backend/utils/cache/relcache.c,v 1.284 2009/01/27 12:40:15 petere Exp $
   *
   *-------------------------------------------------------------------------
   */
*************** formrdesc(const char *relationName, Oid
*** 1396,1401 ****
--- 1396,1407 ----
  	 */
  	relation->rd_rel->relisshared = false;
  
+ 	/*
+ 	 * Likewise, we must know if a relation is temp ... but formrdesc is
+ 	 * not used for any temp relations.
+ 	 */
+ 	relation->rd_rel->relistemp = false;
+ 
  	relation->rd_rel->relpages = 1;
  	relation->rd_rel->reltuples = 1;
  	relation->rd_rel->relkind = RELKIND_RELATION;
*************** RelationBuildLocalRelation(const char *r
*** 2398,2403 ****
--- 2404,2412 ----
  	 */
  	rel->rd_rel->relisshared = shared_relation;
  
+ 	/* it is temporary if and only if it is in my temp-table namespace */
+ 	rel->rd_rel->relistemp = isTempOrToastNamespace(relnamespace);
+ 
  	RelationGetRelid(rel) = relid;
  
  	for (i = 0; i < natts; i++)