Re: Can we use Statistics Import and Export feature to perforamance testing?

From: Corey Huinker <corey(dot)huinker(at)gmail(dot)com>
To: David Rowley <dgrowleyml(at)gmail(dot)com>
Cc: "Ryohei Takahashi (Fujitsu)" <r(dot)takahashi_2(at)fujitsu(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Can we use Statistics Import and Export feature to perforamance testing?
Date: 2025-04-12 18:44:34
Message-ID: CADkLM=fGKmy71O3X97DZVH2DdZi3oPtmL2AYcsCZb=SGkv9Ymw@mail.gmail.com
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>
> You might be getting confused because the code does look at the
> pg_class fields, but that's only to estimate the tuple density. When
> pg_class has those estimates, they're used to calculate the estimated
> density by doing reltuples / relpages, but that average rows per page
>
>
Thanks for the clarification.

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