Vinayak <vinpokale@xxxxxxxxx> writes: > The pg_catalog.concat() is defined as STABLE function. > why was STABLE preferred for concat() over IMMUTABLE? concat() invokes datatype output functions, which are not necessarily immutable. An easy example is that timestamptz_out's results depend on the TimeZone setting. 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
