Re: Parallel Seq Scan
От | Robert Haas |
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Тема | Re: Parallel Seq Scan |
Дата | |
Msg-id | CA+TgmobhQ0_+YObMLbJexvt4QEf6XbLfUdaX1OwL-ivgaN5qxw@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Parallel Seq Scan (Haribabu Kommi <kommi.haribabu@gmail.com>) |
Ответы |
Re: Parallel Seq Scan
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Список | pgsql-hackers |
On Wed, Sep 9, 2015 at 2:17 AM, Haribabu Kommi <kommi.haribabu@gmail.com> wrote: > And also regarding the number of workers (16) that is shown in the > explain analyze plan are not actually allotted because the in my > configuration i set the max_worker_process as 8 only. I feel the plan > should show the allotted workers not the planned workers. > If the query execution takes time because of lack of workers and the > plan is showing as 16 workers, in that case user may think that > even with 16 workers the query is slower, but actually it is not. I would expect EXPLAIN should show the # of workers planned, and EXPLAIN ANALYZE should show both the planned and actual values. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
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