The immutable id for the this column, normally a GUID.
The immutable id for the this column, normally a GUID. Used in constructing the initial hash for lineage as well as a general reference.
The name of the column, should match the source.
The name of the column, should match the source.
List of possible strings that are equivalent to null e.g.
List of possible strings that are equivalent to null e.g. "", "null".
true / false values are lists of strings that are considered equivalent to true or false e.g. "Y", "yes", "N", "no".