PL/PGSQL

    Hello together!

I have a little question, because I found the answer nowhere in the Net.
How I can call a stored pl/pgsql-function from my SQL-Client.
In an SQL-statement I call it like "select MYFUNCTION(blah, blah) from
...".
I need it without the SQL-Statement.

In Oracle I would be:
BEGIN
   MYFUNCTION(...);
END;

How can I do this with PG?

Greets,
   Markus