We currently allow this: postgres=# create table t(a timestamptz not null primary key, check(a > now())); NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "t_pkey" for table "t" CREATE TABLE
Which seems very wrong. For one thing, a dump of this database can not be restored if now() has advanced enough into the future (which it will eventually). It also makes impossible to do things like SET a=a on the table. Yes, this is clearly a stupidly defined constraint, but why do we allow it? Shouldn't we disallow anything that's not IMMUTABLE in a check constraint? -- Magnus Hagander Me: http://www.hagander.net/ Work: http://www.redpill-linpro.com/ -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
