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SHARED LOCKS , EXCLUSIVE LOCKS, ACCESS EXCLUSIVE LOCKS

From:	aditya desai <admad123(at)gmail(dot)com>
To:	Pgsql Performance <pgsql-performance(at)lists(dot)postgresql(dot)org>
Subject:	SHARED LOCKS , EXCLUSIVE LOCKS, ACCESS EXCLUSIVE LOCKS
Date:	2021-04-04 10:42:14
Message-ID:	CAN0SRDH=aG=dM+qyq_zFWacCbAks3ejOdLkp2KYTiQADOHcMpQ@mail.gmail.com
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Hi,
We have few select queries during which we see SHARED LOCKS and EXCLUSIVE
LOCKS on tables. Can these locks cause slowness? Is there any way to reduce
the locks?

What must be causing ACCESS EXCLUSIVE LOCKS when the application is running
select queries? Is it AUTOVACUUM?

Regards,
Aditya.

Responses

Re: SHARED LOCKS , EXCLUSIVE LOCKS, ACCESS EXCLUSIVE LOCKS at 2021-04-04 17:01:27 from Amine Tengilimoglu
Re: SHARED LOCKS , EXCLUSIVE LOCKS, ACCESS EXCLUSIVE LOCKS at 2021-04-04 17:19:45 from Justin Pryzby
Re: SHARED LOCKS , EXCLUSIVE LOCKS, ACCESS EXCLUSIVE LOCKS at 2021-04-06 15:49:54 from Andrew Dunstan

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