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  1. MariaDB Server
  2. MDEV-10080

Derived tables allow double LIMIT clause

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 10.0(EOL), 10.1(EOL), 10.2(EOL)
    • 10.2.1
    • Parser
    • None
    • 10.2.1-2, 10.2.1-3

    Description

      This script:

      DROP TABLE IF EXISTS t1;
      		 
      CREATE TABLE t1 (a INT);
      		 
      INSERT INTO t1 VALUES (1),(2),(3);
      		 
      SELECT * FROM  (SELECT * FROM t1 LIMIT 1 LIMIT 2) t1;

      returns

      +------+
      		 
      | a    |
      		 
      +------+
      		 
      |    1 |
      		 
      |    2 |
      		 
      +------+

      Notice, there are two LIMIT clauses, and the first LIMIT clause is obviously ignored.

      It should return a syntax error.

      Attachments

        Issue Links

          blocks

          Task - A task that needs to be done. MDEV-8909 union parser cleanup

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Activity

            People

              bar Alexander Barkov
              bar Alexander Barkov
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              Dates

                Created:
                Updated:
                Resolved:

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