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  1. MariaDB Server
  2. MDEV-8839

COLUMN_GET() produces warnings with no data

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 10.1, 10.0
    • Fix Version/s: 10.1.8
    • Component/s: Virtual Columns
    • Labels:
      None
    • Sprint:
      10.1.8-3

      Description

      SET @aaa = COLUMN_CREATE('price', 0xF0F1F2F3F4F5F6F7);
      SELECT COLUMN_GET(@aaa, 'price' AS DECIMAL) aaa;
      SHOW WARNINGS;

      returns this warning:

      +---------+------+---------------------------------------------------------+
      | Level   | Code | Message                                                 |
      +---------+------+---------------------------------------------------------+
      | Warning | 1918 | Encountered illegal value '' when converting to DECIMAL |
      +---------+------+---------------------------------------------------------+

      Notice, the empty string in the warning text, instead of the actual data.

      The expected result it to escape unreadable data, like it's done everything else, e.g:

      SELECT _binary 0xF1F2F3F4F5F6F7 + 0;
      SHOW WARNINGS;

      +---------+------+------------------------------------------------------------------+
      | Level   | Code | Message                                                          |
      +---------+------+------------------------------------------------------------------+
      | Warning | 1292 | Truncated incorrect DOUBLE value: '\xF1\xF2\xF3\xF4\xF5\xF6\xF7' |
      +---------+------+------------------------------------------------------------------+

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            Assignee:
            bar Alexander Barkov
            Reporter:
            bar Alexander Barkov
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              Dates

              Created:
              Updated:
              Resolved: