Affects Version/s: None
Fix Version/s: None
GenericUDFs are very poorly documented, this includes everything they relate to:
- ObjectInspector (JavaDoc not really helpful for someone not familiar with Hive)
An example would help as well as a unit test for one of the built in GenericUDFs. Writing a normal UDF is pretty well documented but GenericUDFs (and UDTF/UDAF) require more knowledge about the inner workings of Hive and that could be documented better.