On Wed, Jan 25, 2012 at 08:54:44AM -0800, Adrian Klaver wrote: > > Personally, I think that extract(epoch from timestamp) should assume > > that the timestamp is UTC. > > What if it isn't? then you can always correct it with "at time zone 'some specific time zone'" but you can't correct it the other way. > > Or that there should be a way to do it - by "it" i mean - extract epoch > > value from timestamp value in immutable way. > > Have a timezone value on the timestamp. If the data you are working with is > stored as timestamp with time zone then the timestamps represent a point in > time. I do have. But you can't have index on epoch from timestamptz. and while you can have iundex on epoch from timestamp, it is not correct. depesz -- The best thing about modern society is how easy it is to avoid contact with it. http://depesz.com/ -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general