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From: Laurenz Albe <laurenz.albe@cybertec.at>
To: 王若楠 <wrn@hljdx.net>
To: pgsql-performance <pgsql-performance@lists.postgresql.org>
Subject: Re: Re: performance bottlenecks on lock transactionid
Date: Wed, 14 Aug 2019 12:25:58 +0200
Message-ID: <60f01304bbdefa9d091145b77a117df2d7b5a5ca.camel@cybertec.at> (raw)
In-Reply-To: <tencent_25DF4C35A54D4A33B5206E53BF6D468BB208@qq.com>
References: <tencent_25DF4C35A54D4A33B5206E53BF6D468BB208@qq.com>

王若楠 wrote:
> I want to find a way to reduce the lock waiting and improve the
> performance.

You either have to make the transactions shorter, or you let the
different clients modify different rows, so that they don't lock each
other.

That concurrent writers on the same data lock each other is
unavoidable, and all database management systems I know do it the same
way.

Yours,
Laurenz Albe
-- 
Cybertec | https://www.cybertec-postgresql.com






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