Is it possible to map a DateTime field to a Date field?

Mapping a DateTime field to a Date field is indeed considered a standard mapping. DateTime fields in Relativity store both date and time information, while Date fields are designed to hold only the date component without any time specifics. When mapping, the time portion of the DateTime field is disregarded during the transition to the Date field.

Since this operation is frequently encountered and expected in various data handling scenarios, standard systems are equipped to facilitate this mapping seamlessly. It is critical for users to understand how the values are interpreted during this process; the date stored in the Date field will reflect the date of the DateTime field, ensuring that the information remains coherent, even if the time aspect is omitted.

The other options would imply restrictions that are not reflective of the general functionality defined in Relativity, such as providing exceptions or limited capabilities, which are not necessary in most typical use cases.