How does backend server know which data file and page to read?

From: anand086 <anand086(at)gmail(dot)com>
To: pgsql-novice(at)postgresql(dot)org
Subject: How does backend server know which data file and page to read?
Date: 2017-03-28 06:10:31
Message-ID: 1490681431825-5952476.post@n3.nabble.com
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Hi,

I would like to know, how does postgresql backend process know which data
file and page number to read from when a sql is fired by client.

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