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From: David G. Johnston <[email protected]>
To: Subramanian,Ramachandran <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: Trying to understand Tuple Header
Date: Sun, 3 May 2026 12:02:49 -0700
Message-ID: <CAKFQuwawOYYR=Dfa3tWsKOd-baJ-hV7SKMj9FHiMnd9f-=vNAg@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

On Sunday, May 3, 2026, Subramanian,Ramachandran <
[email protected]> wrote:

> How does postgres know that this 4th tuple has been rolled back ?  Please
> help me learn that.
>
>
The pg_xact file holds information pertaining to whether a transaction
produced live or dead tuples upon ending.

David J.


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