| From: | Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com> |
|---|---|
| To: | Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com> |
| Cc: | Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, Floris Van Nee <florisvannee(at)optiver(dot)com>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, James Coleman <jtc331(at)gmail(dot)com>, Rafia Sabih <rafia(dot)pghackers(at)gmail(dot)com>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Peter Geoghegan <pg(at)bowt(dot)ie>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Bhushan Uparkar <bhushan(dot)uparkar(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru> |
| Subject: | Re: Index Skip Scan |
| Date: | 2019-08-02 16:03:09 |
| Message-ID: | f623b9d7-05bf-8903-5388-1fff5022860d@redhat.com |
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| Lists: | pgsql-hackers |
Hi,
On 8/2/19 8:14 AM, Dmitry Dolgov wrote:
> And this too (slightly rewritten:). We will soon post the new version of patch
> with updates about UniqueKey from Jesper.
>
Yes.
We decided to send this now, although there is still feedback from David
that needs to be considered/acted on.
The patches can be reviewed independently, but we will send them as a
set from now on. Development of UniqueKey will be kept separate though [1].
Note, that while UniqueKey can form the foundation of optimizations for
GROUP BY queries it isn't the focus for this patch series. Contributions
are very welcomed of course.
[1] https://github.com/jesperpedersen/postgres/tree/uniquekey
Best regards,
Jesper
| Attachment | Content-Type | Size |
|---|---|---|
| v23_0001-Unique-key.patch | text/x-patch | 25.7 KB |
| v23_0002-Index-skip-scan.patch | text/x-patch | 76.1 KB |
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