On Jun 5, 10:14 pm, Erwin Brandstetter <brsaw(dot)(dot)(dot)(at)gmail(dot)com> wrote:
> CREATE OR REPLACE FUNCTION f_concat_comma(text, text)
(...)
> LANGUAGE 'plpgsql' STABLE IMMUTABLE;
There's a typo. Should be:
LANGUAGE 'plpgsql' IMMUTABLE;
Regards
Erwin