On Apr 28, 2011, at 2:56 PM, Thomas Larsen Wessel wrote: > UPDATE foo SET bar = TO_VARCHAR( TO_FLOAT(bar) * 2); -- INCORRECT!!!! If you are sure bar contains float value, then try following: UPDATE foo SET bar = bar::float * 2; Thanks & Regards, Vibhor Kumar EnterpriseDB Corporation The Enterprise PostgreSQL Company vibhor.kumar@xxxxxxxxxxxxxxxx Blog:http://vibhork.blogspot.com -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general