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Date: Wed, 13 Feb 2019 17:59:04 -0300
From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Andrew Gierth <andrew@tao11.riddles.org.uk>
Cc: David Rowley <david.rowley@2ndquadrant.com>,
	PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>,
	Thomas Munro <thomas.munro@enterprisedb.com>
Subject: Re: Using POPCNT and other advanced bit manipulation instructions
Message-ID: <20190213205904.GA13925@alvherre.pgsql>
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On 2019-Feb-13, Andrew Gierth wrote:

> >>>>> "Alvaro" == Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> 
>  Alvaro> I've pushed this now. Let's see what the buildfarm has to say
>  Alvaro> about it.
> 
> Lapwing's latest failure looks like yours rather than mine now? (the
> previous two were mine)

It definitely is ... plans have changed from using IndexOnly scans to
Seqscans, which is likely fallout from the visibilitymap_count() change.
Looking.

(I patched the Makefile to add -mpopcnt to all the compile lines rather
than just the frontend one, but I can't see that explaining the
failure.)

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services