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Related To Query Optimization 2+ messages / 2 participants [nested] [flat]
* Related To Query Optimization @ 2023-05-11 14:50 ROHIT SACHDEVA <sachdeva.rohit648@gmail.com> 0 siblings, 1 reply; 2+ messages in thread From: ROHIT SACHDEVA @ 2023-05-11 14:50 UTC (permalink / raw) To: pgsql-admin@lists.postgresql.org Hi Team, I am facing an issue where one of the queries is taking time in production. When I put that query in explain, I found many nested loop conditions were being used, so just for testing, I disabled the enable_nestloop flag for a session, and now the query is running fast. I also ran an analyze on every table of that query and also indexing is there on required columns. Tell me where i am wrong and what can be done, as i don't want to disable it because, according to me, it's not a good practise. -- Have a Good day !!! Regards Rohit Sachdeva -- Have a Good day !!! Regards Rohit Sachdeva ^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: Related To Query Optimization @ 2023-05-11 15:11 Holger Jakobs <holger@jakobs.com> parent: ROHIT SACHDEVA <sachdeva.rohit648@gmail.com> 0 siblings, 0 replies; 2+ messages in thread From: Holger Jakobs @ 2023-05-11 15:11 UTC (permalink / raw) To: pgsql-admin@lists.postgresql.org Am 11.05.23 um 16:50 schrieb ROHIT SACHDEVA: > > Hi Team, > > I am facing an issue where one of the queries is taking time in > production. > When I put that query in explain, I found many nested loop conditions > were being used, so just for testing, I disabled the enable_nestloop > flag for a session, and now the query is running fast. > I also ran an analyze on every table of that query and also indexing > is there on required columns. > > Tell me where i am wrong and what can be done, as i don't want to > disable it because, according to me, it's not a good practise. > > > -- > Have a Good day !!! > > Regards > Rohit Sachdeva I think it's totally impossible to tell without knowing more details. Please post the CREATE TABLE commands, the number of rows in the tables, the SELECT command and the output of EXPLAIN. Kind Regards, Holger > -- Holger Jakobs, Bergisch Gladbach, Tel. +49-178-9759012 Attachments: [application/pgp-signature] OpenPGP_signature (202B, ../../3c797d81-49e6-e8a2-b1b0-b63cb25901e5@jakobs.com/3-OpenPGP_signature) download ^ permalink raw reply [nested|flat] 2+ messages in thread
end of thread, other threads:[~2023-05-11 15:11 UTC | newest] Thread overview: 2+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 2023-05-11 14:50 Related To Query Optimization ROHIT SACHDEVA <sachdeva.rohit648@gmail.com> 2023-05-11 15:11 ` Holger Jakobs <holger@jakobs.com>
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