Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-32076

Unexpected Results by not_null_range_scan

Details

    • Bug
    • Status: Confirmed (View Workflow)
    • Major
    • Resolution: Unresolved
    • 11.1.2, 10.5, 10.6, 10.9(EOL), 10.10(EOL), 10.11, 11.0(EOL)
    • 10.5, 10.6, 10.11
    • Optimizer
    • None
    • Docker: mariadb:lates

    Description

      By changing the setting: not_null_range_scan, a query returns different results shown as follows.

      CREATE TABLE t0(c0 CHAR UNIQUE);
      INSERT INTO t0 VALUES (DEFAULT);

      SET SESSION optimizer_switch = 'not_null_range_scan=off';
      SELECT c0 FROM t0 WHERE (TRUE NOT IN (LOCATE(1, false, c0))); –

      {NULL}

      SET SESSION optimizer_switch = 'not_null_range_scan=on';
      SELECT c0 FROM t0 WHERE (TRUE NOT IN (LOCATE(1, false, c0))); – {}

      Attachments

        Activity

          Ascending order - Click to sort in descending order
          bajinsheng Jinsheng Ba created issue -
          alice Alice Sherepa made changes -
          Field Original Value New Value
          Affects Version/s 10.5 [ 23123 ]
          Affects Version/s 10.6 [ 24028 ]
          Affects Version/s 10.9 [ 26905 ]
          Affects Version/s 10.10 [ 27530 ]
          Affects Version/s 10.11 [ 27614 ]
          Affects Version/s 11.0 [ 28320 ]
          alice Alice Sherepa made changes -
          Fix Version/s 10.5 [ 23123 ]
          Fix Version/s 10.6 [ 24028 ]
          Fix Version/s 10.9 [ 26905 ]
          Fix Version/s 10.10 [ 27530 ]
          Fix Version/s 10.11 [ 27614 ]
          Fix Version/s 11.0 [ 28320 ]
          Fix Version/s 11.1 [ 28549 ]
          alice Alice Sherepa made changes -
          Assignee Sergei Petrunia [ psergey ]
          alice Alice Sherepa made changes -
          Status Open [ 1 ] Confirmed [ 10101 ]
          julien.fritsch Julien Fritsch made changes -
          Fix Version/s 10.9 [ 26905 ]
          julien.fritsch Julien Fritsch made changes -
          Fix Version/s 10.10 [ 27530 ]
          julien.fritsch Julien Fritsch made changes -
          Fix Version/s 11.0 [ 28320 ]
          julien.fritsch Julien Fritsch made changes -
          Fix Version/s 11.1 [ 28549 ]

          People

            psergei Sergei Petrunia
            bajinsheng Jinsheng Ba
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            Dates

              Created:
              Updated:

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