On Fri, May 11, 2007 at 01:25:04PM -0400, Alvaro Herrera wrote:
> Guillaume Cottenceau wrote:
> > Guillaume Cottenceau writes:
> >
> > > With that in mind, I've tried to estimate how much benefit would
> > > be brought by running VACUUM FULL, with the output of VACUUM
> > > VERBOSE. However, it s
Guillaume Cottenceau wrote:
> Guillaume Cottenceau writes:
>
> > With that in mind, I've tried to estimate how much benefit would
> > be brought by running VACUUM FULL, with the output of VACUUM
> > VERBOSE. However, it seems that for example the "removable rows"
> > reported by each VACUUM VERBO
Guillaume Cottenceau writes:
> With that in mind, I've tried to estimate how much benefit would
> be brought by running VACUUM FULL, with the output of VACUUM
> VERBOSE. However, it seems that for example the "removable rows"
> reported by each VACUUM VERBOSE run is actually reused by VACUUM,
> s
Heikki Linnakangas writes:
> Guillaume Cottenceau wrote:
> > According to documentation[1], VACUUM FULL's only benefit is
> > returning unused disk space to the operating system; am I correct
> > in assuming there's also the benefit of optimizing the
> > performance of scans, because rows are phy
In response to Guillaume Cottenceau <[EMAIL PROTECTED]>:
> I'm trying to come up with a way to estimate the need for a
> VACUUM FULL and/or a REINDEX on some tables.
You shouldn't vacuum full unless you have a good reason. Vacuum full
causes index bloat.
> According to documentation[1], VACUUM
Guillaume Cottenceau wrote:
According to documentation[1], VACUUM FULL's only benefit is
returning unused disk space to the operating system; am I correct
in assuming there's also the benefit of optimizing the
performance of scans, because rows are physically compacted on
the disk?
That's right
I'm trying to come up with a way to estimate the need for a
VACUUM FULL and/or a REINDEX on some tables.
According to documentation[1], VACUUM FULL's only benefit is
returning unused disk space to the operating system; am I correct
in assuming there's also the benefit of optimizing the
performanc
