| From: | Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com> |
|---|---|
| To: | Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, Floris Van Nee <florisvannee(at)optiver(dot)com>, James Coleman <jtc331(at)gmail(dot)com> |
| Cc: | Rafia Sabih <rafia(dot)pghackers(at)gmail(dot)com>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Thomas Munro <thomas(dot)munro(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: | 2019-06-20 13:20:39 |
| Message-ID: | a8b5c2d9-7b23-e12b-fc6b-eee63dc8dacf@redhat.com |
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| Lists: | pgsql-hackers |
Hi,
On 6/19/19 9:57 AM, Dmitry Dolgov wrote:
> Here is what I was talking about, POC for an integration with index scan. About
> using of create_skipscan_unique_path and suggested planner improvements, I hope
> together with Jesper we can come up with something soon.
>
I made some minor changes, but I did move all the code in
create_distinct_paths() under enable_indexskipscan to limit the overhead
if skip scan isn't enabled.
Attached is v20, since the last patch should have been v19.
Best regards,
Jesper
| Attachment | Content-Type | Size |
|---|---|---|
| v20-0001-Index-skip-scan.patch | text/x-patch | 57.6 KB |
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