Prasanth Jayachandran created HIVE-19726:
--------------------------------------------
Summary: ORC date PPD is broken
Key: HIVE-19726
URL: https://issues.apache.org/jira/browse/HIVE-19726
Project: Hive
Issue Type: Bug
Affects Versions: 2.4.0, 3.1.0, 3.0.1, 4.0.0
Reporter: Prasanth Jayachandran
Assignee: Prasanth Jayachandran
When kryo was in version 2.22 we added a fix in HIVE-7222 and later in
HIVE-10819. Now that we have updated kryo to 3.0.3 that old workaround fix was
never removed. The issue was that kryo serialized Timestamp to Date type. So to
recover the timestamp, during deserialization we deserialized *any* date
instance to Timestamp object which is wrong (we don't know if date was
serialized as date or timestamp serialized as date in first place). This breaks
PPD on date time as kryo deserialization always converts Date to Timestamp
breaking PPD because of type mismatch.
Now that we have newer kryo version we can remove the code added in HIVE-10819.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
