Gudday' all.
In plpgsql, I've written a function that can call itself if
necessary and thus recurse down to the bottom of a tree, operate on
bottom node, then as it comes out, operate on each node, until
eventually it gets to the top again.
However, is there any system variable that I can check to see if this
function has just been called for the first time or if this is the nTH
call from itself?
Thanks.
--
Hadley Willan > Systems Development > Deeper Design Limited.
hadley@deeper.co.nz > www.deeperdesign.com > +64 (21) 28 41 463