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  1. MariaDB Server
  2. MDEV-31258

Assertion `cond_selectivity <= 1.000000001' upon range query (actual value 1.33)

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Fixed
    • 11.0(EOL)
    • 11.0.2
    • Optimizer
    • None

    Description

      --source include/have_innodb.inc
       
      CREATE TABLE t (id int, a int, b char(3), PRIMARY KEY (id), KEY idx (a,b)) ENGINE=InnoDB;
       
      INSERT INTO t VALUES
      (1,8,'UT'),(2,0,'NU'),(3,1,'SD'),(4,0,'QU'),(5,0,'FL'),(6,0,'ZR'),
      (7,3,'LA'),(8,5,'NU'),(9,0,'NU'),(10,0,'SD'),(11,0,'NU'),(12,1,'SD'),
      (13,0,'BD'),(14,0,'PA'),(15,0,'VT'),(16,4,'WA'),(17,0,'ME'),(18,6,'OH'),
      (19,0,'ME'),(20,4,'NU'),(21,0,'SC'),(22,0,'GA'),(23,1,'CO'),(24,0,'IL'),
      (25,0,'GA'),(26,0,'HI'),(27,0,'BU'),(28,0,'NU'),(29,7,'LA'),(30,0,'NU'),
      (31,0,'JR'),(32,6,'BR'),(33,0,'NU'),(34,6,'CO'),(35,7,'NU'),(36,2,'LA'),
      (37,0,'PR'),(38,1,'UT'),(39,2,'BR'),(40,1,'HI'),(41,0,'SD'),(42,0,'RI'),
      (43,2,'LA'),(44,0,'TN'),(45,4,'HI'),(46,0,'VT'),(47,1,'NU'),(48,0,'SC'),
      (49,0,'TX'),(50,8,'DC'),(51,4,'NU'),(52,0,'AL'),(53,0,'CO'),(54,9,'PR'),
      (55,0,'AR'),(56,0,'SD'),(57,0,'RI'),(58,0,'XE'),(59,0,'NU'),(60,4,'EL'),
      (61,2,'LA'),(62,5,'UT'),(63,3,'NU'),(64,0,'RI'),(65,1,'NU'),(66,0,'BR'),
      (67,3,'WA'),(68,0,'TN'),(69,3,'HI'),(70,0,'OH'),(71,8,'GA'),(72,6,'AL'),
      (73,6,'NU'),(74,1,'HI'),(75,5,'JR'),(76,3,'RI'),(77,0,'DC'),(78,0,'SC'),
      (79,0,'CO'),(80,2,'BO'),(81,8,'XE'),(82,1,'NU'),(83,0,'SD'),(84,0,'PA'),
      (85,5,'PA'),(86,0,'QU'),(87,0,'PA'),(88,0,'NU'),(89,0,'ND'),(90,0,'UT'),
      (91,0,'NU'),(92,0,'NU'),(93,6,'ZR'),(94,0,'NU'),(95,2,'EL'),(96,0,'NU'),
      (97,0,'RI'),(98,5,'DC'),(99,7,'JR'),(100,5,'CO'),(101,0,'UT'),(102,0,'QU'),
      (103,0,'NU'),(104,0,'GA'),(105,7,'AK'),(106,0,'ZR'),(107,0,'YT'),(108,0,'MD'),
      (109,0,'NU'),(110,1,'EL'),(111,0,'ME'),(112,0,'VT'),(113,2,'NU'),(114,0,'CO'),
      (115,5,'TN'),(116,0,'OH'),(117,0,'GA'),(118,9,'GA'),(119,0,'CO'),(120,0,'AL'),
      (121,0,'NU'),(122,2,'NE'),(123,2,'TX'),(124,3,'CO'),(125,0,'TN'),(126,0,'WA'),
      (127,0,'NE'),(128,6,'TN'),(129,0,'BR'),(130,0,'ID'),(131,0,'NU'),(132,2,'EL'),
      (133,0,'PR'),(134,0,'NU'),(135,1,'AZ'),(136,7,'EL'),(137,0,'TN'),(138,0,'PA'),
      (139,5,'QU'),(140,0,'AR'),(141,0,'DC'),(142,2,'WA'),(143,7,'OH'),(144,2,'CO'),
      (145,6,'NU'),(146,9,'FL'),(147,0,'HI'),(148,0,'WA'),(149,1,'BR'),(150,3,'QU');
       
      ANALYZE TABLE t PERSISTENT FOR ALL; # Optional, fails either way
       
      SELECT id, MIN(id) FROM t
      WHERE (b > 'TX' OR b BETWEEN 'NE' AND 'SC') AND id IN (1,7,8) AND a = 5
      GROUP BY id;
      

      11.0 368dd22a

      mariadbd: /data/src/11.0/sql/sql_select.cc:31338: bool get_range_limit_read_cost(const POSITION*, const TABLE*, uint, ha_rows, ha_rows, double*, double*): Assertion `cond_selectivity <= 1.000000001' failed.
      230512 22:04:12 [ERROR] mysqld got signal 6 ;
       
      #9  0x00007fbe85453df2 in __GI___assert_fail (assertion=0x5558d62daa60 "cond_selectivity <= 1.000000001", file=0x5558d62c8ae0 "/data/src/11.0/sql/sql_select.cc", line=31338, function=0x5558d62daaa0 "bool get_range_limit_read_cost(const POSITION*, const TABLE*, uint, ha_rows, ha_rows, double*, double*)") at ./assert/assert.c:101
      #10 0x00005558d43ee056 in get_range_limit_read_cost (pos=0x629000349080, table=0x6190000f7398, keynr=0, rows_limit_arg=150, rows_to_scan=150, read_cost=0x7fbe710a9ba0, read_rows=0x7fbe710a9bc0) at /data/src/11.0/sql/sql_select.cc:31338
      #11 0x00005558d43eff8c in test_if_cheaper_ordering (tab=0x629000349fb0, order=0x6290000fc8a0, table=0x6190000f7398, usable_keys=..., ref_key=1, select_limit_arg=150, new_key=0x7fbe710a9ea0, new_key_direction=0x7fbe710a9ed0, new_select_limit=0x7fbe710a9f60, new_used_key_parts=0x7fbe710a9eb0, saved_best_key_parts=0x7fbe710a9ec0) at /data/src/11.0/sql/sql_select.cc:31698
      #12 0x00005558d43c7522 in test_if_skip_sort_order (tab=0x629000349fb0, order=0x6290000fc8a0, select_limit=18446744073709551615, no_changes=false, map=0x6190000f7428) at /data/src/11.0/sql/sql_select.cc:26252
      #13 0x00005558d431e286 in JOIN::optimize_stage2 (this=0x6290000fd2f0) at /data/src/11.0/sql/sql_select.cc:3287
      #14 0x00005558d43170f3 in JOIN::optimize_inner (this=0x6290000fd2f0) at /data/src/11.0/sql/sql_select.cc:2603
      #15 0x00005558d430fe47 in JOIN::optimize (this=0x6290000fd2f0) at /data/src/11.0/sql/sql_select.cc:1905
      #16 0x00005558d4331ab3 in mysql_select (thd=0x62b00017a218, tables=0x6290000faca8, fields=..., conds=0x6290000fc210, og_num=1, order=0x0, group=0x6290000fc8a0, having=0x0, proc_param=0x0, select_options=2164525824, result=0x6290000fd2c0, unit=0x62b00017e660, select_lex=0x6290000fa380) at /data/src/11.0/sql/sql_select.cc:5144
      #17 0x00005558d43016e8 in handle_select (thd=0x62b00017a218, lex=0x62b00017e588, result=0x6290000fd2c0, setup_tables_done_option=0) at /data/src/11.0/sql/sql_select.cc:616
      #18 0x00005558d4226ac4 in execute_sqlcom_select (thd=0x62b00017a218, all_tables=0x6290000faca8) at /data/src/11.0/sql/sql_parse.cc:6279
      #19 0x00005558d4214eeb in mysql_execute_command (thd=0x62b00017a218, is_called_from_prepared_stmt=false) at /data/src/11.0/sql/sql_parse.cc:3949
      #20 0x00005558d4231574 in mysql_parse (thd=0x62b00017a218, rawbuf=0x6290000fa238 "SELECT id, MIN(id) FROM t\nWHERE (b > 'TX' OR b BETWEEN 'NE' AND 'SC') AND id IN (1,7,8) AND a = 5\nGROUP BY id", length=109, parser_state=0x7fbe710aba20) at /data/src/11.0/sql/sql_parse.cc:8014
      #21 0x00005558d4207460 in dispatch_command (command=COM_QUERY, thd=0x62b00017a218, packet=0x629000285219 "SELECT id, MIN(id) FROM t\nWHERE (b > 'TX' OR b BETWEEN 'NE' AND 'SC') AND id IN (1,7,8) AND a = 5\nGROUP BY id", packet_length=109, blocking=true) at /data/src/11.0/sql/sql_parse.cc:1894
      #22 0x00005558d4204183 in do_command (thd=0x62b00017a218, blocking=true) at /data/src/11.0/sql/sql_parse.cc:1407
      #23 0x00005558d46cc00c in do_handle_one_connection (connect=0x608000003938, put_in_cache=true) at /data/src/11.0/sql/sql_connect.cc:1416
      #24 0x00005558d46cb9cd in handle_one_connection (arg=0x6080000038b8) at /data/src/11.0/sql/sql_connect.cc:1318
      #25 0x00005558d52c0324 in pfs_spawn_thread (arg=0x617000008218) at /data/src/11.0/storage/perfschema/pfs.cc:2201
      #26 0x00007fbe854a7fd4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
      #27 0x00007fbe855285bc in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
      

      (gdb) f 10
      #10 0x0000556827d5a056 in get_range_limit_read_cost (pos=0x629000349080, table=0x6190000f7398, keynr=0, rows_limit_arg=150, 
          rows_to_scan=150, read_cost=0x7f6fffc6dba0, read_rows=0x7f6fffc6dbc0) at /data/src/11.0/sql/sql_select.cc:31338
      31338	      DBUG_ASSERT(cond_selectivity <= 1.000000001);
      (gdb) p cond_selectivity
      $1 = 1.3333333333333333
      

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              monty Michael Widenius
              elenst Elena Stepanova
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                Updated:
                Resolved:

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