Re: Experiences with extensibility

Joshua D. Drake wrote:

> On Tue, 08 Jan 2008 16:28:11 -0800
> Eric Davies <eric@barrodale.com> wrote:

> > 3.      To what extent was your choice of PostgreSQL as a development
> > platform based primarily on its extensibility features?
>
> There is no other open source database that can compare with
> PostgreSQL's extensibility, reliability and scalability.

AFAIK there is no other database system _at all_ that can compete with
PostgreSQL's extensibility.

On Postgres, you can create your own:
- functions (common functions; "set-returning" functions; aggregate functions)
- types
- operators
- indexing access methods (in particular, indexing for your own types)
- PL languages (i.e. you can create language handler for whatever suits
you).  This means there are handlers already available for Python, Tcl,
Perl, PHP, sh, and others.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support