12c: Error ORA-01467 received when using Extended Data Types

With a bug still being worked on by development, there is a workaround listed in MOS document "ORA-01467 In Oracle 12c when max_string_size is Extended Data Types used" via note ID 2022269.1 with a way to convert your query so the sort path is reduced.  If Extended Data Types for 12c is new to you, this would be a great time to learn and find out what My Oracle Support can tell you about the feature!