Re: modularity of PostgreSQL

Hope Ho wrote:
> Dear all,
>
> I have some questions about PostgreSQL's modularity. We know that
> PostgreSQL is famous for its good modularity, which allows users to
> select which part they need. It also allow developers to easily replace
> one part without affecting other parts. However, as I know, most
> database engine, like MySQL, has such modularity: layered architecture
> and small pieces of functionalities. Actually, it's a rule recognized
> by lots of software design. Why is only PostgreSQL entitled "good
> modularity"?

Because Postgres is modulare beyond the source code level. The modules
can be replaced without reprogramming the backend database, like
functions, triggers, operators, server-side languages, etc. And you can
even add new data types without having to modify the database backend
code.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://postgres.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +