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Support was added for timestamp (HIVE-6394), decimal (HIVE-6367), and char and varchar (HIVE-7735) data types. Support was also added for column rename with use of the flag parquet.column.index.access
(HIVE-6938). Parquet column names were previously case sensitive (query had to use column case that matches exactly what was in the metastore), but became case insensitive (HIVE-7554).
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Support for remaining Parquet data types was added (HIVE-6384).
Hive 2.2.0
Adjust timestamp values written to/read from parquet files using a table property (HIVE-12767).