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  1. MariaDB Server
  2. MDEV-6097

Inconsistent results for CAST(int,decimal,double AS DATETIME)

Details

    Description

      For the query:

      SELECT CAST(010203101112 AS DATETIME(1)) AS c1,CAST(010203101112.3+0e0 AS DATETIME(1)) AS c2,CAST(010203101112.3+0e0 AS DATETIME(1)) AS c3;

      MySQL5.6 consistently returns values with YEAR=2001:

      +-----------------------+-----------------------+-----------------------+
      		 
      | c1                    | c2                    | c3                    |
      		 
      +-----------------------+-----------------------+-----------------------+
      		 
      | 2001-02-03 10:11:12.0 | 2001-02-03 10:11:12.3 | 2001-02-03 10:11:12.3 |
      		 
      +-----------------------+-----------------------+-----------------------+

      MariaDB returns either 2001 or 0001 in year:

      +-----------------------+-----------------------+-----------------------+
      		 
      | c1                    | c2                    | c3                    |
      		 
      +-----------------------+-----------------------+-----------------------+
      		 
      | 2001-02-03 10:11:12.0 | 0001-02-03 10:11:12.2 | 0001-02-03 10:11:12.2 |
      		 
      +-----------------------+-----------------------+-----------------------+

      MySQL-5.6 results look better.

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        Issue Links

          blocks

          Task - A task that needs to be done. MDEV-6001 Merge tests for MySQL WL#946 TIME/DATETIME/TIMESTAMP with fractional precision

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Stalled

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              bar Alexander Barkov
              bar Alexander Barkov
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              Dates

                Created:
                Updated:
                Resolved:

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