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  1. MariaDB Server
  2. MDEV-4370

MWL#253: Server crashes in Histogram::get_value with use_stat_tables, optimizer_use_condition_selectivity=3, histogram_size>0

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    Details

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

      SET optimizer_use_condition_selectivity=3;
      SET use_stat_tables=PREFERABLY; 
      SET histogram_size=100;
      SET histogram_type='SINGLE_PREC_HB';
       
      CREATE TABLE t1 (a INT);
      INSERT INTO t1 VALUES (9),(1);
      ANALYZE TABLE t1;
      FLUSH TABLES;
       
      SELECT * FROM t1 WHERE a > 3;

      #3  <signal handler called>
      #4  0x00000000006a7448 in Histogram::get_value (this=0x7fa1f8018748, i=50) at /data/bzr/maria-10.0-mwl253/sql/sql_statistics.h:144
      #5  0x00000000006a750c in Histogram::find_bucket (this=0x7fa1f8018748, pos=0.25, first=true) at /data/bzr/maria-10.0-mwl253/sql/sql_statistics.h:159
      #6  0x00000000006a787b in Histogram::range_selectivity (this=0x7fa1f8018748, min_pos=0.25, max_pos=1) at /data/bzr/maria-10.0-mwl253/sql/sql_statistics.h:226
      #7  0x00000000006a715f in get_column_range_cardinality (field=0x7fa1f8104ec8, min_endp=0x7fa202993d90, max_endp=0x0) at /data/bzr/maria-10.0-mwl253/sql/sql_statistics.cc:3412
      #8  0x00000000008e5414 in records_in_column_ranges (param=0x7fa202993f50, idx=0, tree=0x7fa1f8019c10) at /data/bzr/maria-10.0-mwl253/sql/opt_range.cc:3306
      #9  0x00000000008e577d in calculate_cond_selectivity_for_table (thd=0x2368800, table=0x7fa1f810c420, cond=0x7fa1f8132710) at /data/bzr/maria-10.0-mwl253/sql/opt_range.cc:3381
      #10 0x000000000064d8ae in make_join_statistics (join=0x7fa1f8132958, tables_list=..., conds=0x7fa1f8132710, keyuse_array=0x7fa1f8132c60) at /data/bzr/maria-10.0-mwl253/sql/sql_select.cc:3839
      #11 0x0000000000644c03 in JOIN::optimize_inner (this=0x7fa1f8132958) at /data/bzr/maria-10.0-mwl253/sql/sql_select.cc:1306
      #12 0x0000000000643bd2 in JOIN::optimize (this=0x7fa1f8132958) at /data/bzr/maria-10.0-mwl253/sql/sql_select.cc:1008
      #13 0x000000000064b6df in mysql_select (thd=0x2368800, rref_pointer_array=0x236b738, tables=0x7fa1f8131f90, wild_num=1, fields=..., conds=0x7fa1f8132710, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2147748608, result=0x7fa1f8132938, unit=0x236ae00, select_lex=0x236b4d8) at /data/bzr/maria-10.0-mwl253/sql/sql_select.cc:3220
      #14 0x0000000000642041 in handle_select (thd=0x2368800, lex=0x236ad48, result=0x7fa1f8132938, setup_tables_done_option=0) at /data/bzr/maria-10.0-mwl253/sql/sql_select.cc:376
      #15 0x000000000061a185 in execute_sqlcom_select (thd=0x2368800, all_tables=0x7fa1f8131f90) at /data/bzr/maria-10.0-mwl253/sql/sql_parse.cc:4797
      #16 0x000000000061278e in mysql_execute_command (thd=0x2368800) at /data/bzr/maria-10.0-mwl253/sql/sql_parse.cc:2266
      #17 0x000000000061ca26 in mysql_parse (thd=0x2368800, rawbuf=0x7fa1f8131d98 "SELECT * FROM t1 WHERE a > 3", length=28, parser_state=0x7fa202997500) at /data/bzr/maria-10.0-mwl253/sql/sql_parse.cc:5920
      #18 0x000000000060fab2 in dispatch_command (command=COM_QUERY, thd=0x2368800, packet=0x236dd01 "SELECT * FROM t1 WHERE a > 3", packet_length=28) at /data/bzr/maria-10.0-mwl253/sql/sql_parse.cc:1091
      #19 0x000000000060ece0 in do_command (thd=0x2368800) at /data/bzr/maria-10.0-mwl253/sql/sql_parse.cc:810
      #20 0x00000000007222fe in do_handle_one_connection (thd_arg=0x2368800) at /data/bzr/maria-10.0-mwl253/sql/sql_connect.cc:1266
      #21 0x0000000000721ce9 in handle_one_connection (arg=0x2368800) at /data/bzr/maria-10.0-mwl253/sql/sql_connect.cc:1181
      #22 0x0000000000c9d5a8 in pfs_spawn_thread (arg=0x2315230) at /data/bzr/maria-10.0-mwl253/storage/perfschema/pfs.cc:1015
      #23 0x00007fa20e084e9a in start_thread (arg=0x7fa202998700) at pthread_create.c:308

      revision-id: igor@askmonty.org-20130404065014-v321xub8xct3udms
      revno: 3515
      branch-nick: maria-10.0-mwl253

      Reproducible with InnoDB, MyISAM, Aria.
      histogram_type does not matter.

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              Assignee:
              igor Igor Babaev
              Reporter:
              elenst Elena Stepanova
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                Created:
                Updated:
                Resolved:

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