Re: HOT patch, missing things

On Thu, 2007-08-09 at 15:46 +0530, Pavan Deolasee wrote:
>

> What if we just track the amount of potentially dead space in the
> relation
> (somebody had suggested that earlier in the thread) ? Every committed
> UPDATE/DELETE and aborted UPDATE/INSERT would increment
> the dead space. Whenever page fragmentation is repaired, either during
> normal operation or during vacuum, the dead space is reduced by the
> amount of reclaimed space. Autovacuum triggers whenever the percentage
> of dead space increases beyond a threshold.
>
> We can some fine tuning to track the space consumed by redirect-dead
> line pointers.

Sounds great.