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  1. MariaDB Server
  2. MDEV-22655

CHECK TABLE ... FOR UPGRADE fails to report old datetime format

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      Description

      Basically, MariaDB is still affected by this upstream fixed bug:

      https://bugs.mysql.com/bug.php?id=73008

      Moreover, looks like the only way to find out that old format is used is to check information_schema.innodb_sys_columns.

      See also MDEV-15228

      In addition to the potential impact explained in upstream bug report, looks like in case of partitioned table with index on such column we may hit problems (to be reported elsewhere when reproduced) with it after direct upgrade (without dump and restore) to MariaDB 10.4..x.

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            Assignee:
            sanja Oleksandr Byelkin
            Reporter:
            valerii Valerii Kravchuk
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