Re: adding operators

On 10/1/07, Islam Hegazy <islheg@gmail.com> wrote:
> I am a graduate student in the University of Calgary. I want to add some new
> operators to PostgreSQL to perform some specific tasks in a project I am
> working in. My problem is that I cannot find my way into the code, where
> should I start and where to find the documentation for the code.

There's no need to hack Postgres to add operators.  You can do so by
defining functions using CREATE FUNCTION, and then hooking operators
up to them using CREATE OPERATOR.

http://www.postgresql.org/docs/8.2/static/xoper.html
http://www.postgresql.org/docs/8.2/static/sql-createoperator.html

Regards,
BJ