On Fri, Oct 02, 2015 at 10:06:55AM -0400, Tom Lane wrote: > The problem you'll have in defining timetzrange is that you first need to > invent a "timetz - timetz" operator, which doesn't exist as a builtin > function because the behavior seems not well-defined. What would you do > with the timezone fields? You'd check whether both TZs are equal, if so ignore them else convert both operands to UTC, do "time - time", return result AT TIME ZONE UTC, document that UTC is returned, such that the user can know to apply "AT TIME ZONE ..." to the result as needed. That's not to say anything against the validity of your other points :-) Karsten -- GPG key ID E4071346 @ eu.pool.sks-keyservers.net E167 67FD A291 2BEA 73BD 4537 78B9 A9F9 E407 1346 -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
