[GitHub] [hive] cdmikechen opened a new pull request #871: HIVE-22224: Support Parquet-Avro Timestamp Type in Hive2

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cdmikechen opened a new pull request #871: HIVE-22224: Support Parquet-Avro Timestamp Type in Hive2
URL: https://github.com/apache/hive/pull/871
 
 
   Parquet-avro 1.8.2 use Avro 1.8 which support avro logical_type, but hive use avro 1.7. So that hive just use primitive types to read avro. In avro 1.8, decimal can be transformed to fix, and date can transformed to int (logical_type= date), hive can read these two type with primitive types fix and int. But timestamp will be transformed to long (logical_type=timestamp-micros).
   If user create a table with column timestamp, hive will report error that long can not cast to timestamp. So I create a PR to let hive can read long as timestamp.

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