Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-7688

Server crashes in TABLE_LIST::is_view_or_derived on 2nd execution of PS with ONLY_FULL_GROUP_BY

    XMLWordPrintable

    Details

      Description

      Attention: I am only getting the crash on a VALGRIND build
      cmake . -DCMAKE_BUILD_TYPE=Debug -DWITH_VALGRIND=YES

      See also MDEV-7689, MDEV-7690, MDEV-7696, MDEV-7751 - they all are somewhat similar, probably there are duplicates among them; but effects are different everywhere.

      The problem appeared in 5.5 tree with the following revision:

      revno: 4255
      revision-id: sanja@askmonty.org-20140731071110-4uyuza0ykesfxe1b
      parent: monty@mariadb.org-20140730102752-3ilbpvmbhr2r9a4x
      committer: sanja@askmonty.org
      branch nick: work-maria-5.5-MDEV-6441
      timestamp: Thu 2014-07-31 10:11:10 +0300
      message:
        MDEV-6441: memory leak
        
        mysql_derived_prepare() was executed on the statement memory.
        Now it is executed on the runtime memory.
        All bugs induced by this were fixed.

      Stack trace from 5.5 34f37aa0c0aa87cfb6908500e937516ff37ea6f0

      #3  <signal handler called>
      #4  0x000000000060fd5a in TABLE_LIST::is_view_or_derived (this=0x2000b0300) at sql/table.h:2083
      #5  0x000000000062b3d3 in st_select_lex::update_used_tables (this=0x7f19c3131c18) at sql/sql_lex.cc:3811
      #6  0x0000000000665e31 in JOIN::optimize (this=0x7f19c3052618) at sql/sql_select.cc:1003
      #7  0x000000000062ac80 in st_select_lex::optimize_unflattened_subqueries (this=0x7f19c31467c8, const_only=true) at sql/sql_lex.cc:3506
      #8  0x000000000078305f in JOIN::optimize_constant_subqueries (this=0x7f19c3051a18) at sql/opt_subselect.cc:4973
      #9  0x0000000000665ee0 in JOIN::optimize (this=0x7f19c3051a18) at sql/sql_select.cc:1020
      #10 0x000000000066d551 in mysql_select (thd=0x7f19c3d18000, rref_pointer_array=0x7f19c3146a88, tables=0x7f19c304f618, wild_num=0, fields=..., conds=0x7f19c307c098, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2416184064, result=0x7f19c3044198, unit=0x7f19c31460c8, select_lex=0x7f19c31467c8) at sql/sql_select.cc:3080
      #11 0x0000000000663e63 in handle_select (thd=0x7f19c3d18000, lex=0x7f19c3146018, result=0x7f19c3044198, setup_tables_done_option=0) at sql/sql_select.cc:319
      #12 0x000000000063c293 in execute_sqlcom_select (thd=0x7f19c3d18000, all_tables=0x7f19c304f618) at sql/sql_parse.cc:4689
      #13 0x000000000063546c in mysql_execute_command (thd=0x7f19c3d18000) at sql/sql_parse.cc:2234
      #14 0x0000000000656b1b in Prepared_statement::execute (this=0x7f19c324c280, expanded_query=0x7f19c3bb4c50, open_cursor=false) at sql/sql_prepare.cc:3928
      #15 0x0000000000655c32 in Prepared_statement::execute_loop (this=0x7f19c324c280, expanded_query=0x7f19c3bb4c50, open_cursor=false, packet=0x0, packet_end=0x0) at sql/sql_prepare.cc:3587
      #16 0x0000000000653d56 in mysql_sql_stmt_execute (thd=0x7f19c3d18000) at sql/sql_prepare.cc:2737
      #17 0x000000000063549a in mysql_execute_command (thd=0x7f19c3d18000) at sql/sql_parse.cc:2244
      #18 0x000000000063ed98 in mysql_parse (thd=0x7f19c3d18000, rawbuf=0x7f19c301c178 "EXECUTE stmt", length=12, parser_state=0x7f19c3bb5610) at sql/sql_parse.cc:5909
      #19 0x00000000006329b3 in dispatch_command (command=COM_QUERY, thd=0x7f19c3d18000, packet=0x7f19c3d8c001 "EXECUTE stmt", packet_length=12) at sql/sql_parse.cc:1079
      #20 0x0000000000631b3f in do_command (thd=0x7f19c3d18000) at sql/sql_parse.cc:793
      #21 0x0000000000739b14 in do_handle_one_connection (thd_arg=0x7f19c3d18000) at sql/sql_connect.cc:1266
      #22 0x00000000007395d3 in handle_one_connection (arg=0x7f19c3d18000) at sql/sql_connect.cc:1181
      #23 0x0000000000b836e3 in pfs_spawn_thread (arg=0x7f19c7fed850) at storage/perfschema/pfs.cc:1015
      #24 0x00007f19c9e5cb50 in start_thread (arg=<optimized out>) at pthread_create.c:304

      Test case

      SET sql_mode = ONLY_FULL_GROUP_BY;
       
      CREATE TABLE t1 (a INT) ENGINE=MyISAM;
      INSERT INTO t1 VALUES (3),(4);
       
      CREATE TABLE t2 (b INT) ENGINE=MyISAM;
      INSERT INTO t2 VALUES (1),(8);
       
      CREATE TABLE t3 (c INT, f1 INT, f2 INT, f3 INT, f4 INT, f5 INT, f6 INT, f7 INT, f8 INT, f9 INT) ENGINE=MyISAM;
      CREATE ALGORITHM=MERGE VIEW v3 AS SELECT * FROM t3;
      INSERT INTO t3 VALUES (2,4,2,2,2,2,1,1,0,0),(1,6,2,2,1,1,2,2,0,0);
       
      CREATE TABLE t4 (d INT) ENGINE=MyISAM;
      INSERT INTO t4 VALUES (1),(2);
       
      PREPARE stmt FROM "
        SELECT a FROM ( 
          SELECT a FROM t1, t2 WHERE a <> SOME ( SELECT c FROM v3 ) 
        ) AS sq 
        INNER JOIN t2 INNER JOIN t4 ON (d <= b) 
        WHERE EXISTS ( SELECT * FROM t3, t4 ) 
      ";
       
      EXECUTE stmt;
      EXECUTE stmt;
       
      DROP TABLE t1, t2, t3, t4;

        Attachments

          Issue Links

            Activity

              People

              Assignee:
              monty Michael Widenius
              Reporter:
              elenst Elena Stepanova
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:

                  Git Integration

                  Error rendering 'com.xiplink.jira.git.jira_git_plugin:git-issue-webpanel'. Please contact your Jira administrators.