On 11/19/10 23:14, Andy Colson wrote:
> On 11/19/2010 4:04 PM, Ivan Voras wrote:
>> On 11/19/10 15:49, Andy Colson wrote:
>>
>>> unlogged will only help insert/update performance. Lookup tables sound
>>> readonly for a majority of time. (I'm assuming lots of reads and every
>>> once and a while updates). I doubt that unlogged tables would speed up
>>> lookup tables.
>>
>> Are FreeBSD's temp tables still storage-backed? (i.e. are there
>> memory-backed temp tables)?
>>
>>
>>
>
> Sorry, I'm not sure what you are asking. Not sure what this has to do
> with FreeBSD, or its temp tables.
>
> Unless: s/freebsd/postgres/i
Yes, sorry, switched between mailing lists too fast :)
> Ah, yes, Postgres temp tables still make it to disk eventually. They are
> not WAL logged (but if they get really big they spill to disk). There
> are no memory only tables, no. But PG will cache the heck out of all
> tables, so you get the best of both worlds.
Thanks!