pageinspect bt_page_items doc - Mailing list pgsql-general

From jian he
Subject pageinspect bt_page_items doc
Date
Msg-id CACJufxG9bvBRC9zT_ph-MC9jZEOawyqR=ESs5wCG59j2Jxu2Rg@mail.gmail.com
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Responses Re: pageinspect bt_page_items doc
List pgsql-general
hi.

https://www.postgresql.org/docs/current/pageinspect.html#id-1.11.7.34.6

> This is a B-tree leaf page. All tuples that point to the table happen to be posting list tuples (all of which store a
totalof 100 6 byte TIDs). 
> There is also a “high key” tuple at itemoffset number 1. ctid is used to store encoded information about each tuple
inthis example, though 
> leaf page tuples often store a heap TID directly in the ctid field instead. tids is the list of TIDs stored as a
postinglist. 

(all of which store a total of 100 6 byte TIDs)
I think the meaning is something like:
(all of which store a total of 100 TIDs, each TID is 6 byte long.)

 What's the meaning of  (16, 8292)?  After looking around. I'm still confused.
Would it be better to add an explanation about (16, 8292) to the docs?



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