Re: Decide between Postgresql and Mysql (help of

Heh, too quick on the send button...

On Tue, Mar 28, 2006 at 09:42:51PM +0200, PFC wrote:
> I'll only speak about MyISAM. MySQL == MyISAM. InnoDB is useless :
> if you want transactions, use postgres.
> If you say to yourself "oh yeah, but it would be cool to use a
> MyISAM table for stuff like hit counters etc"... Is it the job of a SQL
> database to count hits on the root page of your site ? No. To store user
> sessions ? No. The job of a SQL database is to efficiently handle data,
> not to do something that should stay in RAM in the application server
> process, or at worst, in a memcached record.

Actually, it's entirely possible to do stuff like web counters, you just
want to do it differently in PostgreSQL. Simply insert into a table
every time you have a hit, and then roll that data up periodically.

And using MyISAM is no panacea, either. Trying to keep a web counter in
a MyISAM table means you'll serialize every web page on that counter
update.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461