Skip site navigation (1) Skip section navigation (2)

Re: Comparison of PGSQL and DB2

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: josh(at)postgresql(dot)org, Shashank Joshi <shashyajoshi(at)yahoo(dot)com>
Cc: pgsql-advocacy(at)postgresql(dot)org
Subject: Re: Comparison of PGSQL and DB2
Date: 2004-03-11 18:59:46
Message-ID: 200403111959.46586.peter_e@gmx.net (view raw or flat)
Thread:
Lists: pgsql-advocacy
Josh Berkus wrote:
> > Isolation Levels
> > (Support all four ANSI isolation levels (UR, CS, RS, RR).)
>
> I'm not sure about this one; I suspect that we do, however, since
> MVCC, invented for the Postgres Project, has become a standard for
> transaction isolation in the database industry.

Surely MVCC wasn't "invented for the Postgres Project"; otherwise Vadim 
wouldn't have done so much copying from Oracle. ;-)

7.5 will support all four isolation levels.

> > Federated Database Support
> > (Ability to allow applications to access & perform JOIN operations
> > on
>
> multiple disparate databases.)
>
> This is a feature which we do not have because it violates the ANSI
> SQL Specification.

That would be news to me.


In response to

Responses

pgsql-advocacy by date

Next:From: Robert TreatDate: 2004-03-11 19:21:09
Subject: Re: Comparison of PGSQL and DB2
Previous:From: Robert TreatDate: 2004-03-11 18:39:50
Subject: Re: Comparison of PGSQL and DB2

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group