| From: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Performance improvement for joins where outer side is unique |
| Date: | 2017-01-18 23:29:15 |
| Message-ID: | CAKJS1f9-WLTw78EkUgwbDLXz0Cn8qu6xHme-p4XNXO_Pwvm8OQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On 19 January 2017 at 11:06, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> wrote:
> Old patch no longer applies, so I've attached a rebased patch. This
> also re-adds a comment line which I mistakenly removed.
(meanwhile Andres commits 69f4b9c)
I should've waited a bit longer.
Here's another that fixes the new conflicts.
--
David Rowley http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
| Attachment | Content-Type | Size |
|---|---|---|
| unique_joins_2017-01-19a.patch | text/x-patch | 77.2 KB |
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