Re: stored procedure multiple call call question

> If I had a single table targ to insert into I would do an
>
> INSERT INTO targ SELECT thiscol, thatcol, theothercol FROM FOO.
>
> The problem is that I have tables targ1, targ2, targn to insert things
into and a
> nice stored procedure myproc which does the insertion into all 3 tables -
> problem is that I dont see how I can effectively do
>
> INSERT INTO myproc SELECT thiscol, thatcol, theothercol FROM FOO.
>
> The only way I can work out how to do this is with another stored
procedure
> which allows me to do:
>
> FOR rec IN SELECT thiscol, thatcol, theothercol
> FROM FOO
> LOOP
> PERFORM myproc(rec.thiscol, rec.thatcol, rec.theothercol);
> END LOOP;
>
> But is there a way to do this just in SQL only without resorting to
plpgsql or a
> language like C/Java?
>
> thanks
>

SELECT myproc(thiscol, thatcol, theothercol) FROM FOO

If you want to use (and explode) the return value of "myproc" you will have
to do:

WITH func_exec AS (
SELECT myproc(thiscol, thatcol, theothercol) FROM FOO
)
SELECT (func_exec.myproc).*
FROM func_exec;

If you do:

SELECT myproc(thiscol, thatcol, theothercol).* FROM FOO

The "myproc" function will be executed one time for every output *column*
defined; which is likely to cause the statement to fail (since you'd be
inserting the same exact data multiple times).

David J.