David Johnston <polobo@xxxxxxxxx> writes: > On Nov 17, 2012, at 20:43, John R Pierce <pierce@xxxxxxxxxxxx> wrote: >> I think he meant a tiny tiny bit faster, primarily due to not having to validate the length. > Maybe... But I would presume a "varchar with no limit" does not validate length... There is overhead from the type system for varchar, whether or not it has a length limit --- you'll get at least some RelabelType nodes in expression trees, and those don't have zero cost to execute. I'd generally recommend using "text" if you don't have any interest in enforcing a specific length limit. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
