Hello I reread a discus to this topic. It's look like we can to find a agreement on following syntax:
FOREACH var [,var [..]] [SLICE number] IN expr LOOP END LOOP; In default mode, without keyword SLICE, it will iterate over every field like "unnest" does. With SLICE keyword, it iterate over nested arrays. Deep can be chosen. I don't see a reason why the deep should be a dynamic. There can be a constant. variable list is used only when item is record or row type. I am not sure what is better keyword - SLICE or SLICING ? Regards Pavel Stehule -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers