On 25/05/2013 20:37, Moshe Jacobson wrote:
> I just created a new partition in a log table, and then built a check
> constraint on the recorded timestamp column.
>
> I have an index on this column, but the adding of the check constraint
> took a very, very long time.
>
> It seems that PostgreSQL 9.1 does not check the index when building a
> check constraint on an indexed column. Is this correct? Is this
> addressed in future releases?
At a guess, I'd imagine that the check constraint has to be checked
against every row in the table, so the index would not be used anyway.
Ray.
--
Raymond O'Donnell :: Galway :: Ireland
rod@iol.ie