Allow Properties w/o datatype
Description
Allow properties (abstract and concrete) without datatype. The datatype is not strictly necessary when there is no value (value = NULL
) because datatypes are primarily used to check the consistency of values (and determine the right table in the backend for the value).
Use-Case
- This could be useful for super-types of properties which are not actually used apart from the query
- This could be useful for properties which have an arity of zero (like
yellowness
) - however, these are better represented by boolean in the most cases.