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  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

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

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-7689 Server crashes in Item_subselect::recalc_used_tables on 2nd execution of PS with view, ONLY_FULL_GROUP_BY, HAVING subquery

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-7690 Server crashes in Item_field::used_tables on 2nd execution of PS with view, ONLY_FULL_GROUP_BY, WHERE subquery

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-7696 Server goes into an endless loop on 2nd execution of PS with ONLY_FULL_GROUP_BY, subqueries

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-7751 Server crashes in TABLE_LIST::reset_const_table on 2nd execution of PS with ONLY_FULL_GROUP_BY, view, subqueries

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-7689 Server crashes in Item_subselect::recalc_used_tables on 2nd execution of PS with view, ONLY_FULL_GROUP_BY, HAVING subquery

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-7690 Server crashes in Item_field::used_tables on 2nd execution of PS with view, ONLY_FULL_GROUP_BY, WHERE subquery

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-7696 Server goes into an endless loop on 2nd execution of PS with ONLY_FULL_GROUP_BY, subqueries

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-7751 Server crashes in TABLE_LIST::reset_const_table on 2nd execution of PS with ONLY_FULL_GROUP_BY, view, subqueries

          • Major - Major loss of function.
          • Closed

          Activity

            Ascending order - Click to sort in descending order
            elenst Elena Stepanova created issue -
            elenst Elena Stepanova made changes -
            Field Original Value New Value
            Summary Server crashes in TABLE_LIST::is_view_or_derived with ONLY_FULL_GROUP_BY Server crashes in TABLE_LIST::is_view_or_derived on 2nd execution of PS with ONLY_FULL_GROUP_BY
            elenst Elena Stepanova made changes -
            Component/s Prepared Statements [ 10804 ]
            elenst Elena Stepanova made changes -
            Description *Attention: I am only getting the crash on a VALGRIND build*
            {{cmake . -DCMAKE_BUILD_TYPE=Debug -DWITH_VALGRIND=YES}}

            {noformat:title=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
            {noformat}

            {code:sql|title=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;
            {code}             		*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-7691, MDEV-7696 - they all are somewhat similar, probably there are duplicates among them; but effects are different everywhere._

            {noformat:title=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
            {noformat}

            {code:sql|title=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;
            {code}
            elenst Elena Stepanova made changes -
            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-7691, MDEV-7696 - they all are somewhat similar, probably there are duplicates among them; but effects are different everywhere._

            {noformat:title=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
            {noformat}

            {code:sql|title=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;
            {code}             		*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-7691, MDEV-7696, MDEV-7751 - they all are somewhat similar, probably there are duplicates among them; but effects are different everywhere._

            {noformat:title=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
            {noformat}

            {code:sql|title=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;
            {code}
            elenst Elena Stepanova made changes -
            elenst Elena Stepanova made changes -
            elenst Elena Stepanova made changes -
            elenst Elena Stepanova made changes -
            elenst Elena Stepanova made changes -
            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-7691, MDEV-7696, MDEV-7751 - they all are somewhat similar, probably there are duplicates among them; but effects are different everywhere._

            {noformat:title=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
            {noformat}

            {code:sql|title=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;
            {code}             		*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:
            {noformat}
            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.
            {noformat}

            {noformat:title=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
            {noformat}

            {code:sql|title=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;
            {code}
            elenst Elena Stepanova made changes -
            elenst Elena Stepanova made changes -
            elenst Elena Stepanova made changes -
            elenst Elena Stepanova made changes -
            ratzpo Rasmus Johansson (Inactive) made changes -
            Workflow MariaDB v2 [ 59997 ] MariaDB v3 [ 66788 ]
            elenst Elena Stepanova made changes -
            sanja Oleksandr Byelkin made changes -
            Status Open [ 1 ] In Progress [ 3 ]
            sanja Oleksandr Byelkin added a comment -

            It looks like fixed

            ==============================================================================
            		 
             
            		 
            TEST                                      RESULT   TIME (ms) or COMMENT
            		 
            --------------------------------------------------------------------------
            		 
             
            		 
            worker[1] Using MTR_BUILD_THREAD 300, with reserved ports 16000..16019
            		 
            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;
            		 
            a
            		 
            3
            		 
            4
            		 
            3
            		 
            4
            		 
            3
            		 
            4
            		 
            3
            		 
            4
            		 
            3
            		 
            4
            		 
            3
            		 
            4
            		 
            EXECUTE stmt;
            		 
            a
            		 
            3
            		 
            4
            		 
            3
            		 
            4
            		 
            3
            		 
            4
            		 
            3
            		 
            4
            		 
            3
            		 
            4
            		 
            3
            		 
            4
            		 
            drop view v3;
            		 
            DROP TABLE t1, t2, t3, t4;
            		 
            main.test                                [ pass ]      7
            		 
            --------------------------------------------------------------------------
            		 
            The servers were restarted 0 times
            		 
            Spent 0.007 of 1 seconds executing testcases
            		 
             
            		 
            Completed: All 1 tests were successful.
            		 
             
            		 
            sanja@Sanja-ThinkPad:~/maria/git/server/mysql-test$ ../sql/mysqld --version../sql/mysqld  Ver 5.5.46-MariaDB-valgrind-max-debug for Linux on x86_64 (Source distribution)
            		 
            151202 13:33:39 [Note] ../sql/mysqld (mysqld 5.5.46-MariaDB-valgrind-max-debug) starting as process 25726 ...

            sanja Oleksandr Byelkin added a comment - It looks like fixed ==============================================================================   TEST RESULT TIME (ms) or COMMENT --------------------------------------------------------------------------   worker[1] Using MTR_BUILD_THREAD 300, with reserved ports 16000..16019 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; a 3 4 3 4 3 4 3 4 3 4 3 4 EXECUTE stmt; a 3 4 3 4 3 4 3 4 3 4 3 4 drop view v3; DROP TABLE t1, t2, t3, t4; main.test [ pass ] 7 -------------------------------------------------------------------------- The servers were restarted 0 times Spent 0.007 of 1 seconds executing testcases   Completed: All 1 tests were successful.   sanja@Sanja-ThinkPad:~/maria/git/server/mysql-test$ ../sql/mysqld --version../sql/mysqld Ver 5.5.46-MariaDB-valgrind-max-debug for Linux on x86_64 (Source distribution) 151202 13:33:39 [Note] ../sql/mysqld (mysqld 5.5.46-MariaDB-valgrind-max-debug) starting as process 25726 ...
            sanja Oleksandr Byelkin made changes -
            Assignee Oleksandr Byelkin [ sanja ] Elena Stepanova [ elenst ]
            elenst Elena Stepanova added a comment -

            Fixed in 5.5.45 / 10.0.21 by the following commit:

            commit 2e941fe9fce7f1667993916ff3f238a283286d3f
            		 
            Author: Monty <monty@mariadb.org>
            		 
            Date:   Thu Jun 25 23:18:48 2015 +0300
            		 
             
            		 
                Fixed crashing bug when using ONLY_FULL_GROUP_BY in a stored procedure/trigger that is repeatedly executed.
            		 
                This is MDEV-7601, including it's sub tasks MDEV-7594, MDEV-7555, MDEV-7590, MDEV-7581, MDEV-7589
            		 
                
                The problem was that select_lex->non_agg_fields was not properly reset for re-execution and this caused an overwrite of a random memory position.
            		 
                The fix was move non_agg_fields from select_lext to JOIN, which is properly reset.

            elenst Elena Stepanova added a comment - Fixed in 5.5.45 / 10.0.21 by the following commit: commit 2e941fe9fce7f1667993916ff3f238a283286d3f Author: Monty <monty@mariadb.org> Date: Thu Jun 25 23:18:48 2015 +0300   Fixed crashing bug when using ONLY_FULL_GROUP_BY in a stored procedure/trigger that is repeatedly executed. This is MDEV-7601, including it's sub tasks MDEV-7594, MDEV-7555, MDEV-7590, MDEV-7581, MDEV-7589 The problem was that select_lex->non_agg_fields was not properly reset for re-execution and this caused an overwrite of a random memory position. The fix was move non_agg_fields from select_lext to JOIN, which is properly reset.
            elenst Elena Stepanova made changes -
            Fix Version/s 5.5.45 [ 19405 ]
            Fix Version/s 10.0.21 [ 19406 ]
            Fix Version/s 5.5 [ 15800 ]
            Assignee Elena Stepanova [ elenst ] Michael Widenius [ monty ]
            Resolution Fixed [ 1 ]
            Status In Progress [ 3 ] Closed [ 6 ]
            serg Sergei Golubchik made changes -
            Workflow MariaDB v3 [ 66788 ] MariaDB v4 [ 148869 ]

            People

              monty Michael Widenius
              elenst Elena Stepanova
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              Dates

                Created:
                Updated:
                Resolved:

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