Re: VACUUM FULL versus CLUSTER ON

Sven Willenberger presumably uttered the following on 07/07/06 13:52:
> On Fri, 2006-07-07 at 10:41 -0700, Joshua D. Drake wrote:
>>>> Sincerely,
>>>>
>>>> Joshua D. Drake
>>> Doing a quick check reveals that the relation in question currently
>>> consumes 186GB of space (which I highly suspect is largely bloat).
>> Good lord.. .186 gig for a 300 million row table? Unless those are seriously
>> large rows, you have a TON of bloat.
>>
>> Joshua D. Drake
>>
>
> Yes, that number came from the dbsize functions (in contrib) so I don't
> know if that includes the associated indexes as well. The rows are
> fairly large, yes, but not enough (IMO) to account for that size. It
> will be interesting to see the final size after the vacuum full (which
> is the method I have settled on to reclaim space this go round).
>
> Sven
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match

Unfortunately it would appear that I cannot vacuum full either as I get an out of
memory error:

# - Memory -

shared_buffers = 5000 # min 16, at least max_connections*2, 8KB each
work_mem = 131072 # min 64, size in KB
maintenance_work_mem = 524288 # min 1024, size in KB
max_stack_depth = 4096 # min 100, size in KB

/boot/loader.conf
kern.maxdsiz="1610612736"
kern.dfldsiz="891289600"

I have disabled other connections to the db except for slony (which will not access
the table in question). I begin a Vacuum full <tablename> and start watching memory
use constantly increase (top). It pushes to:

PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND
61048 pgsql -4 0 1640M 1472M getblk 1 6:58 16.75% 16.75% postgres

and then it bails:
ERROR: out of memory
DETAIL: Failed on request of size 78.

Server version is 8.03

Is this a known issue?

Sven