[Feature request] variable declaration of anonymous composite data type in PL/pgSQL

Hello,

Not sure whether it's appropriate list for feature requests though..
Would it be suitable to implement such variable declarations in PL/pgSQL so
that following (or similar) constructs would be possible?

DECLARE
tmpStruct (name varchar, foo integer, bar boolean)[] := array[
('somename', 1, true),
('someothername', 2, false),
('yetothername', 3, true)
];
BEGIN
...

Or maybe it is possible already? (I know there are temporary tables but it's
not quite the same). The goal to have temporary local random access data
structures (like lookup tables), similar to those in C.

--
regards
MM