Fernando Ferreira <lfernando(at)pop(dot)com(dot)br> writes:
> I would like know about the value stored for null value for fields date
> and timestamp.
There isn't any; we don't store anything at all for a null.
I don't think those other DBs you mention equate a null to some
particular randomly chosen date, either. You might be dealing with
some broken application software that uses such a thing as a way to
avoid dealing with true nulls ...
regards, tom lane