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:[EMAIL PROTECTED]
Sent: Tuesday, May 24, 2005 1:15 PM
To: Amit V Shah
Cc: 'pgsql-performance@postgresql.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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