On 3/23/17 06:09, Vitaly Burovoy wrote: > I think we'll end up with "DROP IDENTITY IF EXISTS" to avoid raising > an exception and "ADD OR SET" if your grammar remains.
That sounds reasonable to me. > Right. From that PoV IDENTITY also changes a default value: "SET (ADD > ... AS?) IDENTITY" works as setting a default to "nextval(...)" > whereas "DROP IDENTITY" works as setting it back to NULL. But dropping and re-adding an identity destroys state, so it's not quite the same. -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers