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tup_returned/ tup_fetched - Mailing list pgsql-general

From	Sebastian Böhm
Subject	tup_returned/ tup_fetched
Date	December 15, 2008 02:02:15
Msg-id	8912705F-917F-4A67-88FF-E7FAFF52823F@exse.net Whole thread Raw
Responses	Re: tup_returned/ tup_fetched
List	pgsql-general

Hi,

one question:

what actually is tup_returned and tup_fetched ?

read from disc before scans and before aggregate ?

thanks

sebastian

From: "David Rowley"
Date: 14 December 2008, 20:15:29
Subject: Re: Is index enough to do simple fetch, or table is always used too?

From: Gregory Stark
Date: 15 December 2008, 02:28:29
Subject: Re: tup_returned/ tup_fetched