Prasanth J created HIVE-7067:
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Summary: Min() and Max() on Timestamp and Date columns for ORC
returns wrong results
Key: HIVE-7067
URL: https://issues.apache.org/jira/browse/HIVE-7067
Project: Hive
Issue Type: Bug
Reporter: Prasanth J
Assignee: Prasanth J
min() and max() of timestamp and date columns of ORC table returns wrong
results. The reason for that is when ORC creates object inspectors for date and
timestamp it uses JAVA primitive objects as opposed to WRITABLE objects. When
get() is performed on java primitive objects, a reference to the underlying
object is returned whereas when get() is performed on writable objects, a copy
of the underlying object is returned.
Fix is to change the object inspector creation to return writable objects for
timestamp and date.
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