| From: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
|---|---|
| To: | obartunov(at)gmail(dot)com |
| Cc: | Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: WIP: bloom filter in Hash Joins with batches |
| Date: | 2015-12-20 17:18:03 |
| Message-ID: | 5676E2CB.5050507@2ndquadrant.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Hi,
On 12/20/2015 05:46 AM, Oleg Bartunov wrote:
> Tomas,
>
> have you seen
> http://www.postgresql.org/message-id/4B4DD67F.9010506@sigaev.ru
> I have very limited internet connection (no graphics) , so I may miss
> something
I haven't seen that, but I don't really see how that's related - your
post is about indexes, mine is about building temporary bloom filters
when executing hash joins.
FWIW, I think bloom filters should be easy to add to BRIN indexes, as
another type of 'summary'. That should address most of the missing
pieces in your implementation (e.g. WAL).
regards
--
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Dmitry Igrishin | 2015-12-20 18:39:20 | SET SESSION AUTHORIZATION superuser limitation. |
| Previous Message | David Fetter | 2015-12-20 16:53:55 | Re: [PATCH] Equivalence Class Filters |