On Wed, Apr 2, 2014 at 1:22 PM, Christopher Jackson <crjackso@gmail.com> wrote:
>
> Hi Bricklen,
>
> Thanks for the feedback. I'll play around with materialized views. My
> understanding is they have to be manually triggered for refresh
Yep.
> and there's an exclusive lock on the view while the refresh is taking place. Is this
> your understanding as well?
Re-yep.
> I'm using PG 9.3.3. If this is true, I'm
> curious what clever ways people have come up with to mitigate any issues
> with the lock.
Kevin Grittner has implemented REFRESH MATERIALIZED VIEW CONCURRENTLY
in 9.4. A unique index is needed on the materialized view as well to
authorize this concurrent operation. It has the merit to allow SELECT
operations on the matview during the refresh.
--
Michael