Re: GIN improvements part2: fast scan

From: Thom Brown <thom(at)linux(dot)com>
To: Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>
Cc: Tomas Vondra <tv(at)fuzzy(dot)cz>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Alexander Korotkov <aekorotkov(at)gmail(dot)com>
Subject: Re: GIN improvements part2: fast scan
Date: 2014-09-25 18:05:56
Message-ID: CAA-aLv7vfRX1WJoh-AyotOBV4WMNY8P3z1ZWvGeMk0255OYR_A@mail.gmail.com
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On 12 March 2014 16:29, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> wrote:
> Good point. We have done two major changes to GIN in this release cycle:
> changed the data page format and made it possible to skip items without
> fetching all the keys ("fast scan"). gincostestimate doesn't know about
> either change.

Did this cost estimation issue get fixed? If not, and if this is due
for 9.5, can this be removed from the 9.4 open items list?

Thom

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