/*
- * $PostgreSQL: pgsql/contrib/pgstattuple/pgstattuple.c,v 1.20 2005/10/15 02:49:06 momjian Exp $
+ * $PostgreSQL: pgsql/contrib/pgstattuple/pgstattuple.c,v 1.20.2.1 2009/03/31 22:56:05 tgl Exp $
*
* Copyright (c) 2001,2002 Tatsuo Ishii
*
int i;
Datum result;
+ /*
+ * Reject attempts to read non-local temporary relations; we would
+ * be likely to get wrong data since we have no visibility into the
+ * owning session's local buffers.
+ */
+ if (isOtherTempNamespace(RelationGetNamespace(rel)))
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("cannot access temporary tables of other sessions")));
+
/* Build a tuple descriptor for our result type */
if (get_call_result_type(fcinfo, NULL, &tupdesc) != TYPEFUNC_COMPOSITE)
elog(ERROR, "return type must be a row type");