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Posted to dev@hive.apache.org by "Adam Szita (JIRA)" <ji...@apache.org> on 2019/08/12 09:22:00 UTC

[jira] [Created] (HIVE-22099) GenericUDFDateFormat can't handle Julian dates properly

Adam Szita created HIVE-22099:
---------------------------------

             Summary: GenericUDFDateFormat can't handle Julian dates properly
                 Key: HIVE-22099
                 URL: https://issues.apache.org/jira/browse/HIVE-22099
             Project: Hive
          Issue Type: Bug
            Reporter: Adam Szita
            Assignee: Adam Szita


Currently dates that belong to Julian calendar (before Oct 15, 1582) are handled improperly by DateFormat UDF:

Although the dates are in Julian calendar, the formatter insists to print these according to Gregorian calendar causing multiple days of difference in some cases:

 
{code:java}
beeline> select date_format('1001-01-05','dd---MM--yyyy');
+----------------+
| _c0 |
+----------------+
| 30---12--1000 |
+----------------+{code}
 

 



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