Re: plpgsql functions organisation

On Sat, 2 May 2015 14:07:31 -0700
Jeff Janes <jeff(dot)janes(at)gmail(dot)com> wrote:

> On Sat, May 2, 2015 at 1:05 PM, Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
> wrote:
>
> > On 05/02/2015 10:12 AM, Melvin Davidson wrote:
> >
> >> AFAIK, you cannot "package" functions in PostgreSQL, but it is possible
> >> to
> >> call a function from within a function.
> >>
> >> That being said, I would seriously look at how and why you are writing
> >> your functions
> >> as functions that call other functions are not very efficient.
> >>
> >
> > I am not following. That is what packaging is about, separating out 'units
> > of work' so they can be combined as needed. Part of that is using existing
> > functions in new functions/classes. In fact in the Postgres source I see
> > this in many places. Now it is entirely possible I missed a memo, so I am
> > open to a more detailed explanation of the inefficiencies involved.
> >
>
> The Postgres source is written in C, not in plpgsql. C has a good
> optimizing compiler and plpgsql doesn't.

Maybe that's a roundabout way of saying that if your functions are
complex enough to require calling "sub-functions" they might be
justifying being writting in C?

--
Bill Moran