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From: Christophe Pettus <xof@thebuild.com>
To: Vince McMahon <sippingonesandzeros@gmail.com>
Cc: pgsql-general@lists.postgresql.org
Subject: Re: Explain returns different number of rows
Date: Thu, 20 Oct 2022 09:56:23 -0700
Message-ID: <6B906119-82AD-49FC-A47D-8652FD03D936@thebuild.com> (raw)
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> On Oct 20, 2022, at 09:52, Vince McMahon <sippingonesandzeros@gmail.com> wrote:
> The number of rows are different. 

This isn't unexpected.  EXPLAIN does not actually run the query and determine how many rows are returned; it calculates an estimate based on the current system statistics, which vary constantly depending on activity in the database.




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