=?iso-8859-1?Q?M=E1rcio_Ant=F4nio_Sepp?= <marcio@zyontecnologia.com.br> writes:
> The follow error occur:
> SQL Error [42804]: ERROR: specified value cannot be cast to type ddate for
> column "d"
> Detalhe: The cast requires a non-immutable conversion.
> I cannot use domain in this case?
Nope. The problem is suggested, if not exactly clearly explained,
by the error message: casting a literal to ddate isn't a guaranteed
fixed process. For example, suppose you created this table and then
did
alter domain ddate add check (value > '2020-01-01');
thereby rendering the partition bound values illegal for the domain.
What would you expect to happen then?
We might at some point work out plausible semantics for this situation,
but it hasn't been done yet.
regards, tom lane