wangqi wrote: > An SQL execution is very slow. > What can I do to makes it faster。 Without knowing more about the version of PostgreSQL, your PostgreSQL configuration, your schema (including indexes), and your hardware, it's hard to give advice. http://wiki.postgresql.org/wiki/SlowQueryQuestions A wild guess on the evidence we have is that you might benefit from an index on MCL.ctid if you don't already have one. -Kevin -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
