Re: Improving Inner Join Performance - Mailing list pgsql-performance

From Michael Glaesemann
Subject Re: Improving Inner Join Performance
Date
Msg-id 10D92D77-0DC5-4772-98CD-A6799E3A39C8@myrealbox.com
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In response to Re: Improving Inner Join Performance  ("Andy" <frum@ar-sd.net>)
List pgsql-performance
On Jan 6, 2006, at 18:21 , Andy wrote:

> Yes I have indexes an all join fields. The tables have around 30
> columns each and around 100k rows. The database is vacuumed every
> hour.

Just to chime in, VACUUM != VACUUM ANALYZE. ANALYZE is what updates
database statistics and affects query planning. VACUUM alone does not
do this.

>>  Do you have an index on report.id_order ? Try creating an index for
>>  it if not and run a vacuum analyze on the table to see if it gets
>>  rid of the sequence scan in the plan.

Michael Glaesemann
grzm myrealbox com




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