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  1. MariaDB Server
  2. MDEV-40983

FROM_DAYS returns 0000-00-00 for all N in [1,365]; roundtrip broken

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      SELECT FROM_DAYS(1), FROM_DAYS(12), FROM_DAYS(32), FROM_DAYS(365);
      		 
      -- MariaDB: all 0000-00-00   MySQL: 0000-01-01 / 0000-01-12 / 0000-02-01 / 0000-12-31
      		 
      SELECT TO_DAYS(FROM_DAYS(1)), TO_DAYS(FROM_DAYS(32));
      		 
      -- MariaDB: 0, 0   <-- TO_DAYS(FROM_DAYS(N)) ≠ N, function reciprocity broken
      		 
      -- MySQL:   1, 32

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          Bug - A problem which impairs or prevents the functions of the product. MDEV-5467 TO_DAYS(DATE(TIME('32 00:00:00'))) returns a wrong result

          • Minor - Minor loss of function, or other problem where easy workaround is present.
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              raghunandan.bhat Raghunandan Bhat
              chunlingqin chunlingqin
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