Cannot declare arrays?

Folks,
I'm trying to delcare an array (of type Numeric) within a PL/pgSQL
function.  No matter what syntax I try, however, I get a compile error. 
I've tried:

DECLARE
level_array NUMERIC(8,2)[];
level_array NUMERIC[](8,2);
level_array NUMERIC[];
level_array[] NUMERIC(8,2);

and even:
level_array MONEY[100];
Please help!

-Josh Berkus



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