Compose for Data Warehouse should support varchar(nomax) and nvarchar(nomax) on source database
Often data is being delivered and stored as JSON. Typically the source database will use varchar or nvarchar(nomax) to hold the JSON text. We need compose to be able to present such attributes for mapping into our data warehouses.
The mapping will typically use the JSON functions but this can't be done unless the attribute from the source database is displayed for mapping.
In current versions of compose attributes of NOMAX are simply ignored and are not presented on the mapping interface.