parquet-pig should not throw an exception reading a timestamp from impala file

Hi, I need to load impala table with timestamp columns with pig. I think loading timestamp cols is still a NYI feature. Waiting for [#218](https://github.com/Parquet/parquet-mr/issues/218) TBD, pig-parquet should not throw an exception but at least should bind Int96 into a bytearray (users can write their own UDF to convert it into pig datetime type).
Is there anyone working on that?

**Reporter**: [gpolaert](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=gpolaert)

_{**Note**: *This issue was originally created as [PARQUET-195](https://issues.apache.org/jira/browse/PARQUET-195). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}

まず、Int96 列を含む Impala ファイルを使って parquet-pig の timestamp reader を追跡し、保留中の timestamp context について issue #218 を確認してください。完了条件は、ファイルの読み取りで例外が発生しなくなり、下流の UDF 処理向けに Int96 が bytearray として公開されることです。

索引モデルが issue の本文から書いたものです。