On Thu, Dec 15, 2011 at 10:10 AM, Robert James <srobertja...@gmail.com> wrote: > I see Postgres (I'm using 8.3) has bitwise aggregate functions > (bit_or), but doesn't seem to have logical aggregate functions. > > How do I do the equivalent of an ANY() or ALL() in PG Aggregate SQL?
CREATE OR REPLACE FUNCTION OrAgg(bool, bool) RETURNS BOOL AS $$ SELECT COALESCE($1 or $2, false); $$ LANGUAGE SQL IMMUTABLE; create aggregate "any"(bool) ( sfunc=OrAgg, stype=bool ); postgres=# select "any"(v) from (values (false), (true)) q(v); any ----- t (1 row) etc note:, I don't like the use of double quoted "any" -- but I'm too lazy to come up with a better name. :-) merlin -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
