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From: Justin Pryzby <pryzby@telsasoft.com>
To: Bhupathi, Kaushik (CORP) <Kaushik.Bhupathi@ADP.com>
Cc: pgsql-performance@lists.postgresql.org <pgsql-performance@lists.postgresql.org>
Subject: Re: Q on SQL Performance tuning
Date: Sun, 27 Jan 2019 08:31:08 -0600
Message-ID: <20190127143108.GK13248@telsasoft.com> (raw)
In-Reply-To: <A55AA5B30958C74083D731937B524ED685A61BFC@DC2PRMBX06A.ES.AD.ADP.com>
References: <A55AA5B30958C74083D731937B524ED685A61BFC@DC2PRMBX06A.ES.AD.ADP.com>

On Sun, Jan 27, 2019 at 08:43:15AM +0000, Bhupathi, Kaushik (CORP) wrote:
> 2)      Is there anyway to know the historical execution plan details of a particular SQL ? Per my understanding so far since there is no concept of shared pool unlike Oracle every execution demands a new hard parse. However wanted to check with experts to know if any extension available on this?

There's also autoexplain, althought I think that's typically configured to only
output plans for queries which longer than a minimum duration.

Justin




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