On Sun, 2008-09-28 at 04:03 +0300, Greg Stark wrote: > Iirc the reason for this fuzziness came from the SQL spec definition > of IS NULL for rows. As long as you maintain that level of spec- > compliance I don't think there are any other important constraints on > pg behaviour.
What does SQL spec say about recursive IS NULL for rows ? Should we check that IS NULL is true for each row element, or must they actually be NULL's ? hannu=# select row(null, null) is NULL; ?column? ---------- t (1 row) hannu=# select row(null, row(null, null)) is NULL; ?column? ---------- f (1 row) -------------- Hannu -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
