Dong Chen created HIVE-10642:
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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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