Re: What do Oracle, DB2, etc. actually *do*?

Chris,

While there may be limits to PostgreSQL's scalability, progress
is definitely being made in this area. For example, Tom Lane's recent
bufmgr locking overhaul should be a significant win on larger SMP systems.

Also, if people do move to PostgreSQL and subsequently find that they're
having problems with scalability, there are options other than migrating
to an entirely new DBMS like Oracle/DB2/etc. If you'll pardon a shameless
plug, Fujitsu Supported PostgreSQL includes a plug-in module, ESM, that
should allow for significantly higher scalability (refer
http://fastware.com.au/postgresql.html).

Regards,

Liam O'Duibhir

_____________________________________________
Liam O'Duibhir - Product Manager - Open Source Software
Fujitsu Australia Software Technology
14 Rodborough Road, Frenchs Forest NSW 2086
Tel: (61-2) 9452 9068 Fax: (61-2) 9975 3779
Mob: 0423 025 852 Email: LiamOD(at)fast(dot)fujitsu(dot)com(dot)au
www.fastware.com.au

> -----Original Message-----
> From: pgsql-advocacy-owner(at)postgresql(dot)org [mailto:pgsql-advocacy-
> owner(at)postgresql(dot)org] On Behalf Of Chris Travers
> Sent: Tuesday, 15 March 2005 3:47 AM
> To: Christopher Browne; PostgreSQL advocacy
> Subject: Re: [pgsql-advocacy] What do Oracle, DB2, etc. actually *do*?
>
>
> >
> > - XML extensions
> > - GIS extensions
> > - Numerous Java-related extensions including a JMS implementation
> > - Web application infrastructure
> > - Additional tools for managing database instances
> >
> >A while back, we needed an Oracle 8i license for a project and ordered
> >the "CD pack" which was a whole box full of CDs (including the one bit
> >we needed) of all sorts of things they'd love to sell us. It was
> >close to 30 CDs of this and that.
> >
> >Oracle is spending billions per year on developers; while some of the
> >results may be of dubious interest, it certainly leads to having a
> >growing stack of CDs.
> >
> >
> Oracle and DB2 also offer an ability to parallelize queries across
> nodes, so that you can query extremely large (multi-TB) data sets quickly.
>
> They also all market multimaster replication.
>
> PostgreSQL is an excellent small-to-reasonably-large-database RDBMS. If
> you get into the 3-5 TB range and need fast access to all the data, or
> if you need multi-master replication, you may need to look elsewhere,
> depending on your application.
>
> Best Wishes,
> Chris Travers
> Metatron Technology Consulting
>
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