Re: HeapTupleHeaderData Layout description

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: benj(dot)dev(at)laposte(dot)net
Cc: pgsql-docs(at)lists(dot)postgresql(dot)org
Subject: Re: HeapTupleHeaderData Layout description
Date: 2021-01-22 16:49:12
Message-ID: 1165901.1611334152@sss.pgh.pa.us
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benj(dot)dev(at)laposte(dot)net writes:
> In https://www.postgresql.org/docs/13/storage-page-layout.html<br>
> we can find on § 68.6.1. Table Row Layout<br>
> the Table 68.4. HeapTupleHeaderData Layout<br>
> <br>
> When additionning Length of differents Fields taht are present we obtain&nbsp; atotal of<br>
> 4+4+4+4+6+2+2+1 = 27<br>

I think you missed the point that t_cid overlays with t_xvac.

regards, tom lane

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