On Fri, Dec 17, 2010 at 12:15 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Merlin Moncure <mmonc...@gmail.com> writes: >> another way: > >> FOREACH scalar IN ARRAY arr_exp DIMS in dim_var > >> dim_var being int[], or possibly text, of length #dimensions, giving >> per dimesion index. > > [ scratches head... ] I don't follow what you envision this doing, > exactly? > > I'm not thrilled with that specific syntax because it'd require making > DIMS a reserved word, but right at the moment I'm more concerned about > what semantics you have in mind.
It's like _pg_expandarray but alterted support multiple dimensions: select * from unnest_dims(array[['a','b'],['c','d']]) returns [1,1], 'a' [1,2], 'b' [2,1], 'c' [2,2], 'd' this provides alternate way of pulling slices, slower possibly, but more abstract. merlin -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
