public inbox for [email protected]
help / color / mirror / Atom feedFrom: Hannu Krosing <[email protected]>
To: Brian Tarbox <[email protected]>
Cc: Rafal Kedziorski <[email protected]>
Cc: [email protected]
Subject: Re: PostgreSQL vs. MySQL
Date: 06 Jul 2003 03:11:58 +0300
Message-ID: <[email protected]> (raw)
In-Reply-To: <01af01c34227$a6cff470$01000001@trouble>
References: <01af01c34227$a6cff470$01000001@trouble>
Brian Tarbox kirjutas R, 04.07.2003 kell 15:27:
> I recently took a system from MySQL to Postgres. Same HW, SW, same data.
> The major operations where moderately complex queries (joins on 8 tables).
> The results we got was that Postgres was fully 3 times slower than MySql.
For each and every query ??
> We were on this list a fair bit looking for answers and tried all the
> standard answers.
Could you post the list of "standard answers" you tried ?
> It was still much much much slower.
Was this with InnoDB ?
what kind of joins were they (i.e
"FROM a JOIN b on a.i=b.i"
or "FROM a,b WHERE a.i = b.i" ?
What was the ratio of planning time to actual execution time in pgsql?
Where the queries originally optimized for MySQL ?
----------------
Hannu
view thread (66+ messages) latest in thread
reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: [email protected]
Cc: [email protected], [email protected], [email protected], [email protected]
Subject: Re: PostgreSQL vs. MySQL
In-Reply-To: <[email protected]>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox