CDH-22170: annotate CHAR and VARCHAR with "UTF8" in Parquet schema
CDH-22170: annotate CHAR and VARCHAR with "UTF8" in Parquet schema

I confirmed that Parquet var/char columns written by Impala can now be
read by Hive.

Change-Id: I14d2fc646835fc5ec0a64e0b93efd6d83511898a
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/4749
Reviewed-by: Nong Li <99a5e5f8f5911755b88e0b536d46aafa102bed41@cloudera.com>
Tested-by: jenkins

andybab/Impala,andybab/Impala,andybab/Impala,andybab/Impala,andybab/Impala,andybab/Impala