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  1. MariaDB Server
  2. MDEV-34202

Followup to MDEV-28621: Perform GROUP BY removal safely

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Details

    • Bug
    • Status: Confirmed (View Workflow)
    • Major
    • Resolution: Unresolved
    • 10.6, 10.5(EOL), 11.0(EOL), 11.1(EOL)
    • 10.6, 10.11, 11.4
    • Optimizer
    • None

    Description

      MDEV-28621 was fixed by pushing a patch that disabled GROUP BY clause elimination when it contained subqueries.

      This MDEV is to fix it properly - remove the GROUP BY clause in all cases.

      Attachments

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-28621 group by optimization incorrectly removing subquery where subject buried in a function

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

          Bug - A problem which impairs or prevents the functions of the product. MDEV-35859 group by removal in Item_singlerow_subselect causing inconsistent results

          • Major - Major loss of function.
          • Stalled

          Activity

            People

              psergei Sergei Petrunia
              psergei Sergei Petrunia
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              Dates

                Created:
                Updated:

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