On 11/18/20 19:46, David G. Johnston wrote: > I doubt there is any substantial resistance to including such a function > but it would have to be written in C.
Would anything have to be written at all, save the CREATE AGGREGATE suggested in the original message, using the existing array_cat as the state transition function? I suppose one might add an optimization to the existing array_cat to detect the aggregate case, and realize it could clobber its left argument. (But I'm not sure how much that would save, with arrays.) Regards, -Chap
