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  1. MariaDB Server
  2. MDEV-19820

Wrong result with multiple single column index request

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 10.4.6, 10.4(EOL)
    • 10.4.7
    • Optimizer
    • None
    • Server : Debian baremetal server, this is the only product installed. Data is stored on a 4x1Tb SSD with material RAID 5
      Client : Tested with mycli / mysql command / dbeaver on 2 different workstation on debian

    Description

      After migrating from mariadb 10.1.38-0+deb9u1 (provided by debian) to 10.4.6+maria~stretch, some request including IN (or multiple OR) and filtering on multiple columns indexed separately :

      Here is the table creation : table_creation.sql

      Here are the logs with my different results : execution.log

      Execution plan : execution_plan.log

      If I add an index on the two columns, the results are back : workaround.log

      Attachments

        1. table_creation.sql
          1 kB
        2. execution.log
          0.6 kB
        3. execution_plan.log
          1 kB
        4. workaround.log
          2 kB

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. MDEV-19911 Regression in 10.4 with InnoDB: indexed SELECT with join results in wrong results.

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-19919 Assertion `!prebuilt->index->is_primary()' failed in row_search_idx_cond_check

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

          Bug - A problem which impairs or prevents the functions of the product. MDEV-20056 Assertion `!prebuilt->index->is_primary()' failed in row_search_idx_cond_check

          • Major - Major loss of function.
          • Closed

          Activity

            People

              igor Igor Babaev
              mioux Sylvain RUMEU
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              Dates

                Created:
                Updated:
                Resolved:

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