Implements #791. Resubmission of accidentally closed pull request #817.
To eliminate the possibility of conflicts between length and end_date/end_time, this raises NotImplementedError if input is supplied with both of the fields.
In the future, the following would be better conflict resolution approaches:
allow both end fields and length field long as they are consistent in each row
conflict resolution by command-line option (e.g. prefer end fields or prefer length field)
Implements #791. Resubmission of accidentally closed pull request #817.
To eliminate the possibility of conflicts between
lengthandend_date/end_time, this raisesNotImplementedErrorif input is supplied with both of the fields.In the future, the following would be better conflict resolution approaches: