> Oh, we don't need the function at all on 9.1? First, we need the function if we use native replcation mode. Second, there are few use case which require the function even operated in streaming replication mode. -- Tatsuo Ishii SRA OSS, Inc. Japan English: http://www.sraoss.co.jp/index_en.php Japanese: http://www.sraoss.co.jp