On Nov 28, 2009, at 5:40 PM, Bruce Momjian wrote: > I think there is general agreement that we should have a timezone data > type which validates against pg_timezone_names().name. It might be > enough to just document how users can create such a domain data type, > but I don't know of a way to do that. Is this a TODO?
>From >http://justatheory.com/computers/databases/postgresql/citext-patch-submitted.html CREATE OR REPLACE FUNCTION is_timezone( tz TEXT ) RETURNS BOOLEAN as $$ BEGIN PERFORM now() AT TIME ZONE tz; RETURN TRUE; EXCEPTION WHEN invalid_parameter_value THEN RETURN FALSE; END; $$ language plpgsql STABLE; CREATE DOMAIN timezone AS CITEXT CHECK ( is_timezone( value ) ); It could also be TEXT I suppose, but "America/Los_Angeles" and "america/los_angeles" should be considered the same. Best, David -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
