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  1. MariaDB Server
  2. MDEV-38757

Exchange partition fails with compound expressions

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Details

    • Unexpected results
    • Q1/2026 Server Development, Q4/2026 Server Maintenance

    Description

      MDEV-34033 addressed the issue where the computed/stored column referenced other columns in the same table.

      There is another issue that arises when the expression uses AND/OR. It seems that the expression is parsed/normalized in such a way that the non-semantic ordering of the conditionals is not consistent. However, the comparison function is order sensitive which causes the EXCHANGE PARTITION operation to fail with the 1736 Tables have different definitions.

      I don't know if it would be better to have the parsed tree keep order, or to have the comparison be order agnostic.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-34033 Exchange partition with virtual columns fails

          • Major - Major loss of function.
          • Closed

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              midenok Aleksey Midenkov
              jacob.williams Jacob Williams
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