gistfile1.txt

drop aggregate array_stack_int(integer[]); 

drop aggregate array_stack_text(text[]);

CREATE ORDERED AGGREGATE array_stack_int(integer[]) (
SFUNC = array_cat,
STYPE = integer[]
);

CREATE ORDERED AGGREGATE array_stack_text(text[]) (                           
  SFUNC = array_cat,
  STYPE = text[]
);