| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Dilip Kumar <dilipbalaut(at)gmail(dot)com> |
| Cc: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Fastpath while arranging the changes in LSN order in logical decoding |
| Date: | 2020-03-06 18:13:25 |
| Message-ID: | 20200306181325.2tguinz62524qp2n@alap3.anarazel.de |
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| Thread: | |
| Lists: | pgsql-hackers |
Hi,
On 2020-01-08 18:06:52 +0530, Dilip Kumar wrote:
> On Wed, 8 Jan 2020 at 5:28 PM, Heikki Linnakangas <hlinnaka(at)iki(dot)fi> wrote:
>
> > On 25/11/2019 05:52, Dilip Kumar wrote:
> > > In logical decoding, while sending the changes to the output plugin we
> > > need to arrange them in the LSN order. But, if there is only one
> > > transaction which is a very common case then we can avoid building the
> > > binary heap. A small patch is attached for the same.
> >
> > Does this make any measurable performance difference? Building a
> > one-element binary heap seems pretty cheap.
>
>
> I haven’t really measured the performance for this. I will try to do that
> next week. Thanks for looking into this.
Did you do that?
Regards,
Andres
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