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Posted to dev@hive.apache.org by "Alexander Pivovarov (JIRA)" <ji...@apache.org> on 2015/04/09 06:31:12 UTC

[jira] [Created] (HIVE-10275) GenericUDF getTimestampValue should return Timestamp instead of Date

Alexander Pivovarov created HIVE-10275:
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             Summary: GenericUDF getTimestampValue should return Timestamp instead of Date
                 Key: HIVE-10275
                 URL: https://issues.apache.org/jira/browse/HIVE-10275
             Project: Hive
          Issue Type: Bug
            Reporter: Alexander Pivovarov
            Assignee: Alexander Pivovarov


Currently getTimestampValue casts Timestamp to Date and returns Date.

Hive Timestamp types stores time with nanosecond precision.
Timestamp class has getNanos method to extract nanoseconds.
Date class has getTime method which retuns unix time in milliseconds.

So, it order to be able to get nanoseconds from Timestamp fields GenericUDF getTimestampValue should return Timestamp instead of Date.



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