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pgsql: Note that index-only scans can affect idx_tup_fetch.

From:	Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To:	pgsql-committers(at)postgresql(dot)org
Subject:	pgsql: Note that index-only scans can affect idx_tup_fetch.
Date:	2011-10-08 15:09:27
Message-ID:	E1RCYWl-0005CN-Dl@gemulon.postgresql.org
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Note that index-only scans can affect idx_tup_fetch.

An index-only scan that avoids heap fetches will increment idx_tup_read
but not idx_tup_fetch.

Branch
------
master

Modified Files
--------------
doc/src/sgml/monitoring.sgml | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

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Next Message	Tom Lane	2011-10-09 04:21:39	pgsql: Prevent index-only scans in stats regression test.
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