Re: Slow Query
От | robbyc |
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Тема | Re: Slow Query |
Дата | |
Msg-id | CA+emuvJLs3Sy8hDweEwj0RYpodXQ+YvO79LLTrny=wDs50QPmA@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Slow Query (林士博 <lin@repica.co.jp>) |
Ответы |
Re: Slow Query
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Список | pgsql-performance |
Hi,
Doing this returns 0 recordsOn Thu, Aug 13, 2015 at 7:22 PM, 林士博 [via PostgreSQL] <[hidden email]> wrote:
In the 'not exists' cluster, you do not have to search table "Vacancy as v" again.I think it would be faster to use the outer Vacancy table as below.In your case, that do the same work.NOT EXISTS (SELECT 1FROM "CategoryOption_TableRow" "ct126"WHERE "Vacancy"."Template"AND "ct126"."CategoryOptionID" IN (34024,35254,35255,35256)AND "ct126"."Category_TableID" = 126AND "ct126"."RowID" = "Vacancy"."ID")If you reply to this email, your message will be added to the discussion below:http://postgresql.nabble.com/Slow-Query-tp5861835p5862008.html
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