2011/1/19 Charles.Hou <givemeegn@xxxxxxxxx>: > what's the definetion of XID? XID == "Transaction ID". > " select * from mybook" SQL command also increase the XID ? Yes. Single SELECT is a transaction. Hence, it needs a transaction ID. greets, Filip -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
