Re: Need help to decide Mysql vs Postgres

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Amit V Shah <ashah(at)tagaudit(dot)com>
Cc: "'pgsql-performance(at)postgresql(dot)org'" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Need help to decide Mysql vs Postgres
Date: 2005-05-24 21:36:07
Message-ID: 42939E47.8030201@commandprompt.com
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Amit V Shah wrote:
> Hi Josh,
>
> Thanks for the prompt reply !! Actually migration is inevitable. We have a
> totally messed up schema, not normalized and stuff like that. So the goal of
> the migration is to get a new and better normalized schema. That part is
> done already. Now the decision point is, should we go with postgres or
> mysql.

O.k. then I would ask myself this:

Would I trust my brand new data that I have put all this effort into,
that finally looks the way that I want it to look, to a database that
truncates information?

PostgreSQL is truly ACID compliant. Even if it is a little slower (which
under normal use I don't find to be the case) wouldn't the reliability
of PostgreSQL make up for say the 10% net difference in performance?

Sincerely,

Joshua D. Drake

>
> Thanks,
> Amit
>
> -----Original Message-----
> From: Joshua D. Drake [mailto:jd(at)commandprompt(dot)com]
> Sent: Tuesday, May 24, 2005 1:15 PM
> To: Amit V Shah
> Cc: 'pgsql-performance(at)postgresql(dot)org'
> Subject: Re: [PERFORM] Need help to decide Mysql vs Postgres
>
>
>
>>I am not trying to start a mysql vs postgres war so please dont
>>misunderstand me .... I tried to look around for mysql vs postgres
>
> articles,
>
>>but most of them said mysql is better in speed. However those articles
>
> were
>
>>very old so I dont know about recent stage. Please comment !!!
>
>
> It is my experience that MySQL is faster under smaller load scenarios.
> Say 5 - 10 connections only doing simple SELECTS. E.g; a dymanic website.
>
> It is also my experience that PostgreSQL is faster and more stable under
> consistent and heavy load. I have customers you regularly are using up
> to 500 connections.
>
> Note that alot of this depends on how your database is designed. Foreign
> keys slow things down.
>
> I think it would be important for you to look at your overall goal of
> migration. MySQL is really not a bad product "IF" you are willing to
> work within its limitations.
>
> PostgreSQL is a real RDMS, it is like Oracle or DB2 and comes with a
> comparable feature set. Only you can decide if that is what you need.
>
> Sincerely,
>
> Joshua D. Drake
> Command Prompt, Inc.
>
>

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