DRILL-3263: Read Smallint and Tinyint columns in Hive tables as Integer.
Smallint and Tinyint are not fully implemented, this will be addressed when DRILL-2470 is fixed. Until these types are ready for full use throughout Drill, we will be reading smallint and tinyint data as integers, as we have much more thorough support and testing for the integer type.
Disabled unit tests for Hive functions that take tinyint and smallint as input or produce them as output.
