Re: High CPU usage after partitioning

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От Kevin Grittner
Тема Re: High CPU usage after partitioning
Дата
Msg-id 20130121211214.120610@gmx.com
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Ответ на High CPU usage after partitioning  (rudi <rudolone@gmail.com>)
Список pgsql-performance
Merlin Moncure wrote:

>> I'm running postgresl 9.0. After partitioning a big table, CPU
>> usage raised from average 5-10% to average 70-80%.

> First thing that jumps to mind is you have some seq-scan heavy
> plans that were not seq-scan before.

Make sure that all indexes are defined for each partition. It is
not enough to define them on just the parent level.

-Kevin


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