Add GUC temp_tablespaces to provide a default location for temporary

objects.

Jaime Casanova

src/backend/utils/misc/postgresql.conf.sample

@@ -399,6 +399,8 @@
 #search_path = '"$user",public'		# schema names
 #default_tablespace = ''		# a tablespace name, '' uses
 					# the default
+#temp_tablespaces = ''			# a list of tablespace names, 
+					# '' uses default_tablespace
 #check_function_bodies = on
 #default_transaction_isolation = 'read committed'
 #default_transaction_read_only = off