| From: | luis(dot)roberto(at)siscobra(dot)com(dot)br |
|---|---|
| To: | Thorsten Schöning <tschoening(at)am-soft(dot)de> |
| Cc: | pgsql-general <pgsql-general(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: How does Postgres decide if to use additional workers? |
| Date: | 2021-02-09 16:23:06 |
| Message-ID: | 492432164.43033181.1612887786512.JavaMail.zimbra@siscobra.com.br |
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| Lists: | pgsql-general |
De: "Thorsten Schöning" <tschoening(at)am-soft(dot)de>
Para: "pgsql-general" <pgsql-general(at)lists(dot)postgresql(dot)org>
Enviadas: Terça-feira, 9 de fevereiro de 2021 12:52:02
Assunto: How does Postgres decide if to use additional workers?
So, based on which facts does Postgres decide if to use aadditional
workers or not? Can I see those decisions explained somewhere? I don't
see anything in the query plan. Thanks!
Mit freundlichen Grüßen
Thorsten Schöning
Hi!
I think you should look into min_parallel_table_scan_size and min_parallel_index_scan_size GUCs.
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