| From: | Peter Geoghegan <pg(at)heroku(dot)com> |
|---|---|
| To: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi> |
| Cc: | Claudio Freire <klaussfreire(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Tuplesort merge pre-reading |
| Date: | 2016-09-10 19:09:41 |
| Message-ID: | CAM3SWZRNp8iwEvTh2FsXGOiu09jOfAcOD0A+RiHBXM1JXew98g@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sat, Sep 10, 2016 at 12:04 AM, Heikki Linnakangas <hlinnaka(at)iki(dot)fi> wrote:
>> Did I misunderstand something? I'm applying the first patch of Peter's
>> series (cap number of tapes), then your first one (remove prefetch)
>> and second one (use larger read buffers).
>
>
> Yes. I have been testing without Peter's first patch, with just the two
> patches I posted. But it should work together (and does, I just tested) with
> that one as well.
You're going to need to rebase, since the root displace patch is based
on top of my patch 0002-*, not Heikki's alternative. But, that should
be very straightforward.
--
Peter Geoghegan
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