Horton

Re: Proposal: Improve bitmap costing for lossy pages

Dilip Kumar <dilipbalaut@gmail.com>

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From: Dilip Kumar <dilipbalaut@gmail.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: amul sul <sulamul@gmail.com>, Alexander Kuzmenkov <a.kuzmenkov@postgrespro.ru>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2017-11-13T04:42:57Z
Lists: pgsql-hackers 
On Sat, Nov 11, 2017 at 3:25 AM, Robert Haas <robertmhaas@gmail.com> wrote:
> On Thu, Nov 9, 2017 at 3:55 AM, amul sul <sulamul@gmail.com> wrote:
>> It took me a little while to understand this calculation.  You have moved this
>> code from tbm_create(), but I think you should move the following
>> comment as well:
>
> I made an adjustment that I hope will address your concern here, made
> a few other adjustments, and committed this.
>
Thanks, Robert.
-- 
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com

Commits

  1. Account for the effect of lossy pages when costing bitmap scans.