Re: queries are fast after dump->restore but slow again after some days dispite vacuum

On Thu, Jul 19, 2012 at 8:13 AM, Felix Scheicher <mandavi@web.de> wrote:
> Andrew Dunstan <andrew <at> dunslane.net> writes:
>
>> Try running CLUSTER on the relevant tables and see if it makes a
>> difference. If it does you might want to look into using pg_reorg
>> periodically.
>
>
> That worked like a charm! Many thanks. But how comes, the queries are also fast
> after a restore without the cluster?

Probably fewer buffers needed to be touched.

Running "explain (analyze, buffers)" would give information on how
many buffers were touched.


Cheers,

Jeff