2009/2/19 SHARMILA JOTHIRAJAH <sharmi_jo@yahoo.com>:
> Hi
> In Oracle I can use the NOVALIDATE for constraints... like this
> ALTER TABLE employee ADD
> CONSTRAINT emp_ck
> CHECK (married IN ('Y','N')) NO VALIDATE;
>
> When the table is already populated this will be faster. Can you do the same in Postgresql?
>
From manual:
"Adding a CHECK or NOT NULL constraint requires scanning the table to
verify that existing rows meet the constraint."
http://www.postgresql.org/docs/current/interactive/sql-altertable.html
Osvaldo