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  1. MariaDB MaxScale
  2. MXS-4307

Parser can't recognize convert function parameters and cause wrong routing decision

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.4, 2.5, 6.4, 22.08
    • Fix Version/s: 6.4.3, 22.08.2
    • Component/s: qc_sqlite
    • Labels:
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      Description

      select CONVERT(substring(receive_code,8), UNSIGNED INTEGER) as sort, `id`, `receive_code` from `hz_lab_sample_receive` where `created_at` >= '2022-09-16 00:00:00' and `laboratory_code` = LY0023A order by `sort` desc limit 1 lock in share mode;

      in `CONVERT(substring(receive_code,8), UNSIGNED INTEGER)`, UNSIGNED INTEGER is not recognized.

      The SQL is parsed as QUERY_TYPE_READ.
      `lock in share mode` has no chance of parsing.

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            Assignee:
            johan.wikman Johan Wikman
            Reporter:
            daniel_xu_forever danielforever
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              Updated:
              Resolved:

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