test strange behavior

Hi list,

I've a function that test a boolean parm, as:
....
CASE $3
WHEN TRUE THEN
    blabla
WHEN FALSE THEN
    proutprout
ELSE
    gadugadu
END CASE;
....

AFAI understand, the ELSE case would normally be triggered with a NULL
but it isn't ('WHEN NULL THEN' also don't work).

Any clue?

JY
--
If men could get pregnant, abortion would be a sacrament.