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Re: Need help to decide Mysql vs Postgres

From: "Joel Fradkin" <jfradkin(at)wazagua(dot)com>
To: "'Amit V Shah'" <ashah(at)tagaudit(dot)com>,"'Joshua D(dot) Drake'" <jd(at)commandprompt(dot)com>
Cc: <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Need help to decide Mysql vs Postgres
Date: 2005-05-09 17:30:36
Message-ID: 005901c554bc$cff3bf90$797ba8c0@jfradkin (view raw or flat)
Thread:
Lists: pgsql-performance
I took an unbiased look and did some tests.
Objectively for me MYSQL was not an improvement for speed.
I had read the benchmarks in pcmagazine from a while back as well.

I did some tests using ODBC, and .net connections and also used aqua studios
(hooks up to both data bases) and found postgres a bit faster.

I did spend more time getting a feeling for setup on postgres, but I was at
a point of desperation as some queries were still too slow on postgres.

I ended up re-engineering my app to use simpler(flattened) data sets.
I still have a few I am working through, but all in all it is running better
then when I was on MSSQL, and MYSQL was just slower on the tests I did.

I loaded both MYSQL and postgres on both my 4 processor Dell running red hat
AS3 and Windows XP on a optiplex.

Joel Fradkin
 
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-----Original Message-----
From: pgsql-performance-owner(at)postgresql(dot)org
[mailto:pgsql-performance-owner(at)postgresql(dot)org] On Behalf Of Amit V Shah
Sent: Tuesday, May 24, 2005 12:22 PM
To: 'Joshua D. Drake'
Cc: 'pgsql-performance(at)postgresql(dot)org'
Subject: Re: [PERFORM] Need help to decide Mysql vs Postgres

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. 

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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