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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)