From: Dennis Sacks <dennis@illusions.com>
To: Joel Fradkin <jfradkin@wazagua.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: same question little different test MSSQL vrs Postgres
Date: Tue, 25 Jan 2005 21:21:08 -0700
Message-ID: <41F71AB4.5030208@illusions.com> (raw)
In-Reply-To: <000901c5035a$3b619cc0$797ba8c0@jfradkin>
References: <000901c5035a$3b619cc0$797ba8c0@jfradkin>
Joel Fradkin wrote:
> I also tried a simple select * from tblcase where clientum = 'SAKS'
>
> On both MSSQL and Postgres.
>
> MSSQL was 3 secs, Postgres was 27 secs.
>
>
>
> There is a key for clientnum, but it appeared on both systems
> (identical Dell Desktops Postgres is running Linux MSSQL is XP) it did
> not do a indexed search.
>
One of the things you'll want to do regularly is run a "vacuum analyze".
You can read up on this in the postgresql docs. This is essential to the
indexes being used properly. At a bare minimum, after you import a large
amount of data, you'll want to run vacuum analyze.
Dennis Sacks
dennis@illusions.com
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To: pgsql-sql@postgresql.org
Cc: dennis@illusions.com, jfradkin@wazagua.com
Subject: Re: same question little different test MSSQL vrs Postgres
In-Reply-To: <41F71AB4.5030208@illusions.com>
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