Eric Brown <[EMAIL PROTECTED]> writes:

> My application is multi-threaded and I could care less about the concurrency
> afforded by MVCC. I'd rather just update the things in place and get less
> postgresql concurrency but more consistent long-running performance and disk
> space utilization.

Postgres uses MVCC for guaranteeing that it can roll back transactions too...

> Is my interpretation correct?
> Is there a way to turn off MVCC?
> Do fixed sized rows help any?

Postgres doesn't do anything special for fixed size rows.


I would suggest you look at pg_autovacuum, but in general while a
maintenance-free system is everyone's goal it's pretty far off. 

-- 
greg


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