Fabio Ugo Venchiarutti <fabio@xxxxxxxx> writes: > As you can see, CONCAT()'s output isn't deemed suitable for an index > scan. The same happens for all type-compatible STABLE functions i tried. Conversion of the pattern to an index qualification requires that the pattern be a plan-time constant. STABLE functions, by definition, are not that. 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
