| From: | Andy Fan <zhihui(dot)fan1213(at)gmail(dot)com> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
| Cc: | Floris Van Nee <florisvannee(at)optiver(dot)com>, David Rowley <dgrowleyml(at)gmail(dot)com>, Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, "pg(at)bowt(dot)ie" <pg(at)bowt(dot)ie>, "jesper(dot)pedersen(at)redhat(dot)com" <jesper(dot)pedersen(at)redhat(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, "jtc331(at)gmail(dot)com" <jtc331(at)gmail(dot)com>, "rafia(dot)pghackers(at)gmail(dot)com" <rafia(dot)pghackers(at)gmail(dot)com>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, "bhushan(dot)uparkar(at)gmail(dot)com" <bhushan(dot)uparkar(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, Floris van Nee <floris(dot)vannee(at)gmail(dot)com> |
| Subject: | Re: Index Skip Scan |
| Date: | 2020-03-23 11:17:56 |
| Message-ID: | CAKU4AWqhLG=potoEcBkvG1OvgWgP6Jh2Qgr7wa1NocmKCYH0aQ@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
>
>
> On Mon, Mar 23, 2020 at 1:55 AM Floris Van Nee <florisvannee(at)optiver(dot)com>
> wrote:
> > I'm unsure which version number to give this patch (to continue with
> numbers from previous skip scan patches, or to start numbering from scratch
> again). It's a rather big change, so one could argue it's mostly a separate
> patch. I guess it mostly depends on how close the original versions were to
> be committable. Thoughts?
>
> I don't know, but from the sidelines, it'd be nice to see the unique
> path part go into PG13, where IIUC it can power the "useless unique
> removal" patch.
>
Actually I have a patch to remove the distinct clause some long time ago[1],
and later it came to the UniqueKey as well, you can see [2] for the current
status.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Mark Lorenz | 2020-03-23 11:36:59 | Re: Created feature for to_date() conversion using patterns 'YYYY-WW', 'YYYY-WW-D', 'YYYY-MM-W' and 'YYYY-MM-W-D' |
| Previous Message | Amit Kapila | 2020-03-23 11:04:28 | Re: backup manifests |