Rajkumar Raghuwanshi <rajkumar.raghuwan...@enterprisedb.com> writes: > I have created a table with primary key, and then dropped primary key from > table. But table still have not null constraint added by primary key.
> Is there any other statement to delete primary key with not null? > or this is an expected behaviour of pg? Yes, it's expected. You can use "alter table t alter column c drop not null" if you don't want the not-null constraint anymore. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers