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  1. MariaDB Server
  2. MDEV-24204

inconsistent query results using a LEFT JOIN

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Duplicate
    • 10.3.25, 10.3(EOL), 10.4(EOL), 10.5
    • N/A
    • N/A
    • None
    • Ubuntu and Debian

    Description

      Hi,

      After trying without success to post my trouble on the mariadb-discuss mailing list, so I posted it here:
      https://alioth-lists.debian.net/pipermail/pkg-mysql-maint/2020-November/014430.html
      with one follow up here:
      https://alioth-lists.debian.net/pipermail/pkg-mysql-maint/2020-November/014445.html

      This is strange because the same query works fine both on MySQL 8.0.21 (Ubuntu) and MySQL 5.7.26 (Debian).

      I don't know how to start with this and I am not familiar with the EXPLAIN output.

      Thanks,
      Patrice

      Attachments

        1. 1_my.test
          767 kB
        2. 3DstructureDB_ANC.sql.gz
          1.63 MB
        3. cnf.tgz
          3 kB
        4. db.sql.7z
          787 kB
        5. taxonomy.sql.gz
          5 kB

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. MDEV-25128 Wrong result from join with materialized semi-join and splittable derived

          • Major - Major loss of function.
          • Closed

          Activity

            People

              oleg.smirnov Oleg Smirnov
              Patrice Patrice Duroux
              Votes:
              1 Vote for this issue
              Watchers:
              6 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

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