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Re: Inner Join of the same table
- 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: Tue, 15 Aug 2006 14:27:49 -0500
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
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- From: Sebastián Baioni
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