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From "Dong Chen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-10642) Update Timestamp type mapping to Parquet
Date Thu, 07 May 2015 07:16:59 GMT
Dong Chen created HIVE-10642:
--------------------------------

             Summary: Update Timestamp type mapping to Parquet 
                 Key: HIVE-10642
                 URL: https://issues.apache.org/jira/browse/HIVE-10642
             Project: Hive
          Issue Type: Sub-task
            Reporter: Dong Chen
            Assignee: Dong Chen


Timestamp in Hive was originally mapped to INT_96 in Parquet before. And inside Parquet it
use Binary to save values.

When working on HIVE-10255, I found predicate with timestamp does not work, since comparing
Binary representative of Timestamp value can not give correct relationship.
Meanwhile, in latest version Parquet, the timestamp is mapped to INT_64. Refer to https://github.com/Parquet/parquet-format/blob/master/LogicalTypes.md

Therefore, this Jira will update the mapping of Timestamp type in Hive, and keep it backward
compatible.





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