| From: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> |
|---|---|
| To: | RK <korlapati(at)gmail(dot)com> |
| Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Costing bug in hash join logic for semi joins |
| Date: | 2018-07-12 00:50:24 |
| Message-ID: | CAKJS1f9oJ-hhgw+P4sRmoPVWAZ4KNAjH1eJT6VP393Ar5x04Ng@mail.gmail.com |
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| Lists: | pgsql-hackers |
On 10 July 2018 at 22:21, David Rowley <david(dot)rowley(at)2ndquadrant(dot)com> wrote:
> I've done that in the attached. Also on reading the comment above, it
> looks slightly incorrect. To me, it looks like it's applying a
> twentieth of the cost and not a tenth as the comment claims. I
> couldn't resist updating that too.
I've added this patch to the September commit fest:
https://commitfest.postgresql.org/19/1720/
--
David Rowley http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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