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  1. MariaDB Server
  2. MDEV-39435

FIXED: Server crash : Assertion `table_records || !head->file->stats.records' failed.

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Details

    • Bug
    • Status: In Progress (View Workflow)
    • Major
    • Resolution: Unresolved
    • None
    • 13.0
    • Optimizer
    • None

    Description

      Issue found in below tests:
      main.derived_cond_pushdown
      main.subselect
      main.subselect4
      main.func_in
      main.subselect_mat_cost_bugs

      Issue:

      -------------
      Replay crashes the server:

      mariadbd: /home/ppandith/test2/sql/opt_range.cc:2743: quick_select_return SQL_SELECT::test_quick_select(THD*, key_map, table_map, ha_rows, bool, bool, bool, bool, Item_func::Bitmap): Assertion `table_records || !head->file->stats.records' failed.

      How to repro:

      -------------

      CREATE TABLE t1 (a INT, PRIMARY KEY(a));
      INSERT INTO t1 VALUES (1),(2),(3);
       
      set optimizer_record_context=ON;
      EXPLAIN SELECT * FROM t1 WHERE a IN 
        ((SELECT MAX(a) FROM t1), (SELECT MAX(a) FROM t1));
      SELECT context INTO DUMPFILE 'context1.txt' FROM INFORMATION_SCHEMA.OPTIMIZER_CONTEXT;
      source context1.txt;
      

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              psergei Sergei Petrunia
              mariadb-pavithrapandith Pavithra Pandith
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              Dates

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                Updated:

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