On 10/13/23 06:37, Tom Lane wrote:
> If it's not nominally of a domain type, please cite chapter and
> verse that says it isn't.
Okay, I found it.
SQL:2023-2 6.7 <column reference>
Syntax Rules
5) Let C be the column that is referenced by CR. The declared type of CR is
Case:
a) If the column descriptor of C includes a data type, then that
data type.
b) Otherwise, the data type identified in the domain descriptor that
describes the domain that is identified by the <domain name> that is
included in the column descriptor of C.
So the domain should not be carried into a query expression (including
views) and the data type should be the one specified in the domain.
--
Vik Fearing
