Re: Using Expanded Objects other than Arrays from plpgsql

Michel Pelletier <pelletier.michel@gmail.com> writes:

Well, you shouldn't be using PERFORM.  Not only does it not do the
right thing, but it's not optimized for expanded objects at all:
they'll get flattened both on the way into the statement and on
the way out.  Try it with

     graph := set_element(graph, 1, 1, 1);
     RETURN nvals(graph);

                        regards, tom lane