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  1. MariaDB Server
  2. MDEV-22011

DISTINCT with JSON_ARRAYAGG gives wrong results

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 10.5
    • Fix Version/s: 10.5.4
    • Component/s: Optimizer
    • Labels:
      None

      Description

      As JSON_ARRAYAGG is implemented as a wrapper over Item_func_group_concat, MDEV-11563 is going to affect JSON_ARRAYAGG too.

      The problem with DISTINCT in JSON_ARRAYAGG is that it expects the values read from the table for each record. It does not use the key but instead calls val_str() for all the arguments in the GROUP_CONCAT function.

        Attachments

          Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-11563 GROUP_CONCAT(DISTINCT ...) may produce a non-distinct list

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-16620 Add support for JSON_ARRAYAGG and JSON_OBJECTAGG

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-22840 JSON_ARRAYAGG gives wrong results with NULL values and ORDER by clause

          • Major - Major loss of function.
          • Closed

            Activity

              People

              Assignee:
              varun Varun Gupta (Inactive)
              Reporter:
              varun Varun Gupta (Inactive)
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                Dates

                Created:
                Updated:
                Resolved:

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