Re: Tid scan improvements

From: Edmund Horner <ejrh00(at)gmail(dot)com>
To: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
Cc: David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, David Steele <david(at)pgmasters(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Tid scan improvements
Date: 2019-09-05 01:06:56
Message-ID: CAMyN-kCX8kNy85_Sa-=gXNhZL84vbDtxpKPTF7qTDtTwykaOEQ@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On Wed, 4 Sep 2019 at 10:34, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:
>
> On 2019-Aug-01, Edmund Horner wrote:
>
> > Hi everyone,
> >
> > Sadly it is the end of the CF and I have not had much time to work on
> > this. I'll probably get some time in the next month to look at the
> > heapam changes.
> >
> > Should we move to CF? We have been in the CF cycle for almost a year now...
>
> Hello, do we have an update on this patch? Last version that was posted
> was v9 from David on July 17th; you said you had made some changes on
> July 22nd but didn't attach any patch. v9 doesn't apply anymore.

Hi pgsql-hackers,

I have had a lot of difficulty making the changes to heapam.c and I
think it's becoming obvious I won't get them done by myself.

The last *working* patch pushed the work into heapam.c, but it was
just a naive loop over the whole table. I haven't found how to
rewrite heapgettup_pagemode in the way Andres suggests.

So, I think we need to either get some help from someone familiar with
heapam.c, or maybe shelve the patch. It has been work in progress for
over a year now.

Edmund

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Michael Paquier 2019-09-05 01:25:55 Re: pg_promote() can cause busy loop
Previous Message Michael Paquier 2019-09-05 01:03:16 Re: [HACKERS] CLUSTER command progress monitor