Re: computing completion tag is expensive for pgbench -S -M prepared

From: Simon Riggs <simon(at)2ndquadrant(dot)com>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: computing completion tag is expensive for pgbench -S -M prepared
Date: 2018-06-07 10:40:48
Message-ID: CANP8+jL1O--E7B25j_Loy+bjJhAFpZAc4Trp1ZouadW8w5ngqQ@mail.gmail.com
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On 7 June 2018 at 11:29, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:

>> Do we actually need the completion tag at all? In most cases??
>
>
> affected rows is taken from this value on protocol level

I didn't mean we should remove the number of rows. Many things rely on that.

--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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