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  1. MariaDB Server
  2. MDEV-10053

Assertion `!table || (!table->read_set || bitmap_is_set(table->read_set, field_index))' failed in Field_long::val_int()

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 10.0, 10.1, 10.2
    • 10.0.31
    • Optimizer
    • None

    Description

      Note: I'm filing it separately from MDEV-6486, because the test case in MDEV-6486 does not cause a crash on 10.1 and 10.2, while this one does.

      CREATE TABLE t1 (pk INT, f1 INT NOT NULL, f2 VARCHAR(3), f3 INT NULL, PRIMARY KEY(pk)) ENGINE=MyISAM;
      INSERT INTO t1 VALUES (1,1,'foo',8), (2,5,'bar',7);
       
      SELECT STRAIGHT_JOIN sq1.f2 FROM ( SELECT * FROM t1 ) AS sq1
      WHERE EXISTS ( SELECT * FROM t1 AS sq2 WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 );
      

      Stack trace from 10.0 commit cee9ab9d85a8d75290b0d60bc7af26c8cf179a1d

      mysqld: /src/10.0/sql/field.cc:3794: virtual longlong Field_long::val_int(): Assertion `!table || (!table->read_set || bitmap_is_set(table->read_set, field_index))' failed.
      160511  1:10:11 [ERROR] mysqld got signal 6 ;
       
      #7  0x00007feeb507e1d2 in __assert_fail () from /lib64/libc.so.6
      #8  0x0000000000838184 in Field_long::val_int (this=0x7feeafb28fe0) at /src/10.0/sql/field.cc:3794
      #9  0x0000000000873d42 in Item_field::val_int (this=0x7feeada2ec28) at /src/10.0/sql/item.cc:2592
      #10 0x0000000000880e7f in Item_direct_ref::val_int (this=0x7feeada30be8) at /src/10.0/sql/item.cc:7519
      #11 0x000000000088ad5b in Item_direct_view_ref::val_int (this=0x7feeada30be8) at /src/10.0/sql/item.h:3821
      #12 0x0000000000891e59 in Arg_comparator::compare_int_signed (this=0x7feeada8f608) at /src/10.0/sql/item_cmpfunc.cc:1201
      #13 0x00000000008a265a in Arg_comparator::compare (this=0x7feeada8f608) at /src/10.0/sql/item_cmpfunc.h:81
      #14 0x0000000000894169 in Item_func_eq::val_int (this=0x7feeada8f540) at /src/10.0/sql/item_cmpfunc.cc:1976
      #15 0x00000000006cd016 in evaluate_join_record (join=0x7feeada304b8, join_tab=0x7feeada8e120, error=0) at /src/10.0/sql/sql_select.cc:17938
      #16 0x00000000006ccc55 in sub_select (join=0x7feeada304b8, join_tab=0x7feeada8e120, end_of_records=false) at /src/10.0/sql/sql_select.cc:17841
      #17 0x00000000006cc4c9 in do_select (join=0x7feeada304b8, fields=0x7feeada78cd0, table=0x0, procedure=0x0) at /src/10.0/sql/sql_select.cc:17503
      #18 0x00000000006a973a in JOIN::exec_inner (this=0x7feeada304b8) at /src/10.0/sql/sql_select.cc:3084
      #19 0x00000000006a6c0a in JOIN::exec (this=0x7feeada304b8) at /src/10.0/sql/sql_select.cc:2373
      #20 0x00000000007d8ccd in join_tab_execution_startup (tab=0x7feead860968) at /src/10.0/sql/opt_subselect.cc:5119
      #21 0x00000000006ccb85 in sub_select (join=0x7feeada2e5e0, join_tab=0x7feead860968, end_of_records=false) at /src/10.0/sql/sql_select.cc:17829
      #22 0x00000000006cd333 in evaluate_join_record (join=0x7feeada2e5e0, join_tab=0x7feead860640, error=0) at /src/10.0/sql/sql_select.cc:18063
      #23 0x00000000006ccc55 in sub_select (join=0x7feeada2e5e0, join_tab=0x7feead860640, end_of_records=false) at /src/10.0/sql/sql_select.cc:17841
      #24 0x00000000006cc4c9 in do_select (join=0x7feeada2e5e0, fields=0x7feeb11ee128, table=0x0, procedure=0x0) at /src/10.0/sql/sql_select.cc:17503
      #25 0x00000000006a973a in JOIN::exec_inner (this=0x7feeada2e5e0) at /src/10.0/sql/sql_select.cc:3084
      #26 0x00000000006a6c0a in JOIN::exec (this=0x7feeada2e5e0) at /src/10.0/sql/sql_select.cc:2373
      #27 0x00000000006a9fb7 in mysql_select (thd=0x7feeb11e9fb0, rref_pointer_array=0x7feeb11ee288, tables=0x7feeada79ed0, wild_num=0, fields=..., conds=0x7feeada2e398, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2147748610, result=0x7feeada2e5c0, unit=0x7feeb11ed920, select_lex=0x7feeb11ee010) at /src/10.0/sql/sql_select.cc:3308
      #28 0x00000000006a0333 in handle_select (thd=0x7feeb11e9fb0, lex=0x7feeb11ed858, result=0x7feeada2e5c0, setup_tables_done_option=0) at /src/10.0/sql/sql_select.cc:373
      #29 0x0000000000674b85 in execute_sqlcom_select (thd=0x7feeb11e9fb0, all_tables=0x7feeada79ed0) at /src/10.0/sql/sql_parse.cc:5293
      #30 0x000000000066d09f in mysql_execute_command (thd=0x7feeb11e9fb0) at /src/10.0/sql/sql_parse.cc:2562
      #31 0x00000000006777cd in mysql_parse (thd=0x7feeb11e9fb0, rawbuf=0x7feeada77088 "SELECT STRAIGHT_JOIN sq1.f2 FROM ( SELECT * FROM t1 ) AS sq1\nWHERE EXISTS ( SELECT * FROM t1 AS sq2 WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 )", length=161, parser_state=0x7feeb7128650) at /src/10.0/sql/sql_parse.cc:6574
      #32 0x000000000066a309 in dispatch_command (command=COM_QUERY, thd=0x7feeb11e9fb0, packet=0x7feeafb3a1b1 "", packet_length=161) at /src/10.0/sql/sql_parse.cc:1308
      #33 0x00000000006695d6 in do_command (thd=0x7feeb11e9fb0) at /src/10.0/sql/sql_parse.cc:998
      #34 0x0000000000787cb2 in do_handle_one_connection (thd_arg=0x7feeb11e9fb0) at /src/10.0/sql/sql_connect.cc:1378
      #35 0x0000000000787a24 in handle_one_connection (arg=0x7feeb11e9fb0) at /src/10.0/sql/sql_connect.cc:1293
      #36 0x0000000000df561c in pfs_spawn_thread (arg=0x7feeaebbf4f0) at /src/10.0/storage/perfschema/pfs.cc:1860
      #37 0x00007feeb6da10a4 in start_thread () from /lib64/libpthread.so.0
      #38 0x00007feeb513504d in clone () from /lib64/libc.so.6
      

      EXPLAIN

      EXPLAIN EXTENDED
      SELECT STRAIGHT_JOIN sq1.f2 FROM ( SELECT * FROM t1 ) AS sq1
      WHERE EXISTS ( SELECT * FROM t1 AS sq2 WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 );
      id      select_type     table   type    possible_keys   key     key_len ref     rows    filtered        Extra
      1       PRIMARY t1      ALL     NULL    NULL    NULL    NULL    2       100.00
      1       PRIMARY <subquery3>     eq_ref  distinct_key    distinct_key    4       test.t1.f1      1       100.00
      3       MATERIALIZED    <subquery4>     eq_ref  distinct_key    distinct_key    4       func    1       100.00
      3       MATERIALIZED    sq2     ALL     NULL    NULL    NULL    NULL    2       100.00  Using where; Using join buffer (flat, BNL join)
      4       MATERIALIZED    t1      ALL     NULL    NULL    NULL    NULL    2       100.00
      Warnings:
      Note    1276    Field or reference 'sq1.pk' of SELECT #3 was resolved in SELECT #1
      Note    1276    Field or reference 'sq1.f1' of SELECT #3 was resolved in SELECT #1
      Note    1003    select straight_join `test`.`t1`.`f2` AS `f2` from  <materialize> (select `test`.`sq2`.`f1` from `test`.`t1` `sq2` semi join (`test`.`t1`) where (`test`.`t1`.`pk` = `test`.`t1`.`f1`)) join `test`.`t1` where (`<subquery3>`.`f1` = `test`.`t1`.`f1`)
      

      5.5 does not fail.

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

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