Re: db corruption pg vs mysql

["Joshua D. Drake" <jd(at)commandprompt(dot)com>]

tim h wrote:
> Hi. Im running one of my apps on mysql/myisam. db size: 7mil records, 5.8Gb.
> We've had some corruption problems, somehow the mysqld service failed 
> corrupted the db.
>
> For many reasons, but for this reason alone, im considering switching to 
> pgsql sooner
> then planned. My question is... will this same problem happen in pgsql?

No. PostgreSQL is ACID compliant.

> Is there a way to prevent or minimize corruption due to service or 
> hardware failure?

Well sure, backups, UPS, Raid battery backup...

> also, will the use of Transactional queries prevent corruption, or is 
> that a different issue?

Transactional queries is a different issue. Read this:

http://www.fredosaurus.com/notes-db/transactions/acid.html

This is what Pg has, that MySQL (at least with myisam) does not.

Joshua D. Drake


> thanks.
>
> --
> Tim H
> Berkeley, CA


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