| From: | Jim Nasby <jnasby(at)pervasive(dot)com> |
|---|---|
| To: | sebaioni-postgresql(at)yahoo(dot)com(dot)ar |
| Cc: | Performance PostgreSQL <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: Inner Join of the same table |
| Date: | 2006-08-15 19:27:49 |
| Message-ID: | 165A9949-55BC-4BFC-9CEF-4F54B23731BE@pervasive.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
On Aug 15, 2006, at 1:53 PM, Sebastián Baioni wrote:
> 9 -> Index Scan using uesapt001 on
> APORTES (cost=0.00..37301678.64
> rows=9339331 width=25) (actual time=110.000..2520690.000
> rows=9335892 loops=1)
It's taking 2520 seconds to scan an index with 9M rows, which sounds
way, way too slow. I suspect that index got bloated badly at some
point by not vacuuming frequently enough (autovacuum is your friend).
Try reindexing and see if that fixes the problem.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
| From | Date | Subject | |
|---|---|---|---|
| Next Message | mark | 2006-08-15 19:39:51 | Re: Postgresql Performance on an HP DL385 and |
| Previous Message | Jim C. Nasby | 2006-08-15 19:21:46 | Re: Beginner optimization questions, esp. regarding Tsearch2 |