>>> 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?
>>
2012/7/19 Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>:
> Are you running a lot of full table updates?
If you mean updates which are applied on every or almost every row of
the table - yes, it happens with two rather small tables of max. 10
000 rows. But they are both not touched by the query with this big
performance difference.
Regards,
Felix