Re: Better tracking of free space during SP-GiST index build - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Better tracking of free space during SP-GiST index build
Date
Msg-id CA+TgmoYyhhqwh_hSsjr-mkdCEW259h2F9XYB6npj_X+GB9fYpg@mail.gmail.com
Whole thread Raw
In response to Re: Better tracking of free space during SP-GiST index build  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On Wed, Sep 28, 2016 at 2:11 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Robert Haas <robertmhaas@gmail.com> writes:
>> On Thu, Sep 22, 2016 at 1:37 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>> OK, I'll think about how to do that more efficiently.  The smaller
>>> incremental improvement isn't surprising, because in this example the
>>> index would still be 90-something MB if it had no free space at all,
>>> so there's going to be decreasing returns from any additional work
>>> to avoid wasted free space.  But if we can do it cheaply, this does
>>> suggest that using pages in order by free space is of value.
>
>> Tom, are you planning to do something about this patch yet this
>> CommitFest, or leave it until later?
>
> I doubt I will get to it this week, so let's mark it RWF for this fest.

OK, done.  Thanks for the reply.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



pgsql-hackers by date:

Previous
From: Christoph Berg
Date:
Subject: Re: Set log_line_prefix and application name in test drivers
Next
From: Robert Haas
Date:
Subject: Re: Binary I/O for isn extension