schemas/py_functions.sql: parse_date_range(): Always return a value for end date, even if string is not a date range. This enables using _dateRangeEnd() as a filter function on anything intended as an end date.
schemas/py_functions.sql: parse_date_range(): Always return a value for end date, even if string is not a date range. This enables using _dateRangeEnd() as a filter function on anything intended as an end date.