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  1. MariaDB Server
  2. MDEV-4467

Assertion `error != 0' fails on select from a FEDERATED table which points at SEQUENCE table

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Minor
    • Resolution: Won't Fix
    • Affects Version/s: 10.0.2
    • Fix Version/s: 10.0.4
    • Component/s: None
    • Labels:
      None

      Description

      See also MDEV-4468.
      SELECT from a federated table pointing at a sequence table crashes the same way as it does with a non-existent table (which is what MDEV-4468 is about)

      mysqld: /home/elenst/bzr/10.0/sql/mysqld.cc:3346: void my_message_sql(uint, const char*, myf): Assertion `error != 0' failed.
      130502  2:01:47 [ERROR] mysqld got signal 6 ;

      #7  0x00007f2e10c96192 in __GI___assert_fail (assertion=0xe38d1a "error != 0", file=0xe38230 "/home/elenst/bzr/10.0/sql/mysqld.cc", line=3346, function=0xe3f740 "void my_message_sql(uint, const char*, myf)") at assert.c:103
      #8  0x000000000056a18f in my_message_sql (error=0, str=0x7f2dc7ffd050 "Received error: 0 : ", MyFlags=0) at /home/elenst/bzr/10.0/sql/mysqld.cc:3346
      #9  0x0000000000dc5808 in my_printf_error (error=0, format=0xf5a8b8 "Received error: %d : %s", MyFlags=0) at /home/elenst/bzr/10.0/mysys/my_error.c:124
      #10 0x0000000000b34fac in ha_federatedx::info (this=0x7f2ddc00c470, flag=18) at /home/elenst/bzr/10.0/storage/federatedx/ha_federatedx.cc:3089
      #11 0x00000000007033dd in TABLE_LIST::fetch_number_of_rows (this=0x7f2ddc007110) at /home/elenst/bzr/10.0/sql/table.cc:6765
      #12 0x000000000065c4dd in make_join_statistics (join=0x7f2ddc010a40, tables_list=..., conds=0x0, keyuse_array=0x7f2ddc010d78) at /home/elenst/bzr/10.0/sql/sql_select.cc:3358
      #13 0x0000000000655168 in JOIN::optimize_inner (this=0x7f2ddc010a40) at /home/elenst/bzr/10.0/sql/sql_select.cc:1301
      #14 0x000000000065410e in JOIN::optimize (this=0x7f2ddc010a40) at /home/elenst/bzr/10.0/sql/sql_select.cc:1003
      #15 0x000000000065bdca in mysql_select (thd=0x2eb66b8, rref_pointer_array=0x2eb9c48, tables=0x7f2ddc007110, wild_num=1, fields=..., conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2147748608, result=0x7f2ddc0109f0, unit=0x2eb92a0, select_lex=0x2eb9998) at /home/elenst/bzr/10.0/sql/sql_select.cc:3215
      #16 0x000000000065257f in handle_select (thd=0x2eb66b8, lex=0x2eb91e8, result=0x7f2ddc0109f0, setup_tables_done_option=0) at /home/elenst/bzr/10.0/sql/sql_select.cc:371
      #17 0x0000000000627707 in execute_sqlcom_select (thd=0x2eb66b8, all_tables=0x7f2ddc007110) at /home/elenst/bzr/10.0/sql/sql_parse.cc:5021
      #18 0x000000000061fd29 in mysql_execute_command (thd=0x2eb66b8) at /home/elenst/bzr/10.0/sql/sql_parse.cc:2482
      #19 0x0000000000629fc6 in mysql_parse (thd=0x2eb66b8, rawbuf=0x7f2ddc012070 "select * from fed", length=17, parser_state=0x7f2dc7ffe550) at /home/elenst/bzr/10.0/sql/sql_parse.cc:6154
      #20 0x000000000061cf0e in dispatch_command (command=COM_QUERY, thd=0x2eb66b8, packet=0x2ebaa89 "select * from fed", packet_length=17) at /home/elenst/bzr/10.0/sql/sql_parse.cc:1274
      #21 0x000000000061c384 in do_command (thd=0x2eb66b8) at /home/elenst/bzr/10.0/sql/sql_parse.cc:983
      #22 0x0000000000736cc5 in do_handle_one_connection (thd_arg=0x2eb66b8) at /home/elenst/bzr/10.0/sql/sql_connect.cc:1267
      #23 0x0000000000736a18 in handle_one_connection (arg=0x2eb66b8) at /home/elenst/bzr/10.0/sql/sql_connect.cc:1181
      #24 0x00007f2e11c7ce9a in start_thread (arg=0x7f2dc7fff700) at pthread_create.c:308
      #25 0x00007f2e10d5acbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

      Test case:

      # Run with --sequence and --federated:
      # perl ./mtr --mysqld=--federated --mysqld=--sequence <test name>
       
      eval create table fed engine=Federated connection='mysql://root@localhost:$MASTER_MYPORT/test/seq_1_to_2';
      select * from fed;

      revision-id: knielsen@knielsen-hq.org-20130429100354-0kujsw18axni9syq
      revno: 3748
      branch-nick: 10.0

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              Assignee:
              serg Sergei Golubchik
              Reporter:
              elenst Elena Stepanova
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                Created:
                Updated:
                Resolved:

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