Tom Lane wrote:
> Heikki Linnakangas <heikki@enterprisedb.com> writes:
>> A much simpler approach would be to try to acquire the vacuum lock, and
>> compact the page the usual way, and fall back to a cold update if we
>> can't get the lock immediately.
>
> Seems like that could work.
I just realized that there's a big problem with that. The process doing
the update surely holds a pin on the buffer itself. Needs more thought..
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com