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  1. MariaDB Server
  2. MDEV-86

limit in derived in subquery in a stored function

    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 5.5.20
    • Component/s: None
    • Labels:
      None

      Description

      in sp.test:

      create function f1(p1 integer, p2 integer)
      returns int
      begin
        declare count int;
        set count= (select count(*) from (select * from t1 limit p1, p2) t_1);
        return count;
      end|
      select f1(0, -1)|

      limit values are used in JOIN::optimize invoked from mysql_derived_optimize.
      While limit values are set in st_select_lex_unit::set_limit invoked from mysql_derived_fill invoked from mysql_derived_optimize. Later in the execute flow.
      Full stack traces are attached.

        Attachments

        1. s1
          5 kB
          Sergei Golubchik
        2. s2
          5 kB
          Sergei Golubchik

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              • Assignee:
                igor Igor Babaev
                Reporter:
                serg Sergei Golubchik
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                • Created:
                  Updated:
                  Resolved: