Re: [DOCS] The number of bytes is stored in index_size of pgstatindex() ?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Peter Geoghegan <pg(at)heroku(dot)com>
Cc: 大塚憲司 <otsuka(dot)kenji(at)nttcom(dot)co(dot)jp>, pgsql-docs(at)postgresql(dot)org, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [DOCS] The number of bytes is stored in index_size of pgstatindex() ?
Date: 2016-02-19 00:15:22
Message-ID: 13781.1455840922@sss.pgh.pa.us
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Peter Geoghegan <pg(at)heroku(dot)com> writes:
> Why would dead pages not get traversed by scans?

Because they've been removed from the right-link/left-link chains.

regards, tom lane

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