array_agg says it can take any type of arg, but this seems not to work when the arg in an integer array. create temp table x(name text, val integer[]); insert into x values('a',array[1,2,3]); insert into x values('b',array[3,4,5]); select * from x; select max(val), min(val) from x; select array_agg(val) from x; Well, everything works except the last statement. In 8.4 I get ERROR: could not find array type for data type integer[] I was hoping for [1,2,3,4,5] or at least [1,2,3,3,4,5] or even [[1,2,3],[3,4,5]] Am I not understanding something? Thanks, TJ O'Donnell -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general