| From: | panam <panam(at)gmx(dot)net> |
|---|---|
| To: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Hash Anti Join performance degradation |
| Date: | 2011-05-26 18:04:35 |
| Message-ID: | 1306433075215-4429475.post@n5.nabble.com |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers pgsql-performance |
Sorry,
SELECT MAX(e.id) FROM event_message e WHERE e.box_id = id
as posted previously should actually read
SELECT max(m1.id) FROM message m1 WHERE m1.box_id = b.id)
so I tried this already.
Regards,
panam
--
View this message in context: http://postgresql.1045698.n5.nabble.com/Hash-Anti-Join-performance-degradation-tp4420974p4429475.html
Sent from the PostgreSQL - performance mailing list archive at Nabble.com.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Kevin Grittner | 2011-05-26 18:05:55 | Re: [ADMIN] pg_class reltuples/relpages not updated by autovacuum/vacuum |
| Previous Message | Robert Haas | 2011-05-26 17:55:53 | Re: Pre-alloc ListCell's optimization |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Cédric Villemain | 2011-05-26 18:13:22 | Re: Hash Anti Join performance degradation |
| Previous Message | Kevin Grittner | 2011-05-26 17:45:32 | Re: The shared buffers challenge |