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.

#3  <signal handler called>

#4  0x00000000008066e9 in Item_field::used_tables (this=0x7f205c046198) at sql/item.cc:2720

#5  0x000000000077c7b7 in optimize_semijoin_nests (join=0x7f205c053c18, all_table_map=127) at sql/opt_subselect.cc:2193

#6  0x000000000066fbed in make_join_statistics (join=0x7f205c053c18, tables_list=..., conds=0x7f205c047958, keyuse_array=0x7f205c053f50) at sql/sql_select.cc:3790

#7  0x0000000000666b44 in JOIN::optimize (this=0x7f205c053c18) at sql/sql_select.cc:1229

#8  0x000000000066d551 in mysql_select (thd=0x7f205cd18000, rref_pointer_array=0x7f205c0e0a88, tables=0x7f205c050c18, wild_num=0, fields=..., conds=0x7f205c047958, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2416184064, result=0x7f205c044058, unit=0x7f205c0e00c8, select_lex=0x7f205c0e07c8) at sql/sql_select.cc:3080

#9  0x0000000000663e63 in handle_select (thd=0x7f205cd18000, lex=0x7f205c0e0018, result=0x7f205c044058, setup_tables_done_option=0) at sql/sql_select.cc:319

#10 0x000000000063c293 in execute_sqlcom_select (thd=0x7f205cd18000, all_tables=0x7f205c050c18) at sql/sql_parse.cc:4689

#11 0x000000000063546c in mysql_execute_command (thd=0x7f205cd18000) at sql/sql_parse.cc:2234

#12 0x0000000000656b1b in Prepared_statement::execute (this=0x7f205c0d6600, expanded_query=0x7f205cbb4c50, open_cursor=false) at sql/sql_prepare.cc:3928

#13 0x0000000000655c32 in Prepared_statement::execute_loop (this=0x7f205c0d6600, expanded_query=0x7f205cbb4c50, open_cursor=false, packet=0x0, packet_end=0x0) at sql/sql_prepare.cc:3587

#14 0x0000000000653d56 in mysql_sql_stmt_execute (thd=0x7f205cd18000) at sql/sql_prepare.cc:2737

#15 0x000000000063549a in mysql_execute_command (thd=0x7f205cd18000) at sql/sql_parse.cc:2244

#16 0x000000000063ed98 in mysql_parse (thd=0x7f205cd18000, rawbuf=0x7f205c01c0d8 "EXECUTE stmt", length=12, parser_state=0x7f205cbb5610) at sql/sql_parse.cc:5909

#17 0x00000000006329b3 in dispatch_command (command=COM_QUERY, thd=0x7f205cd18000, packet=0x7f205cd8c001 "EXECUTE stmt", packet_length=12) at sql/sql_parse.cc:1079

#18 0x0000000000631b3f in do_command (thd=0x7f205cd18000) at sql/sql_parse.cc:793

#19 0x0000000000739b14 in do_handle_one_connection (thd_arg=0x7f205cd18000) at sql/sql_connect.cc:1266

#20 0x00000000007395d3 in handle_one_connection (arg=0x7f205cd18000) at sql/sql_connect.cc:1181

#21 0x0000000000b836e3 in pfs_spawn_thread (arg=0x7f2060fed760) at storage/perfschema/pfs.cc:1015

#22 0x00007f2062d6cb50 in start_thread (arg=<optimized out>) at pthread_create.c:304

#23 0x00007f206167a70d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

SET sql_mode = ONLY_FULL_GROUP_BY;

CREATE TABLE t1 (a 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 v1 AS SELECT * FROM t1;

INSERT INTO t1 VALUES (4, 2, 2, 2, 2, 2, 1, 1, 0, 0),(6, 1, 2, 2, 1, 1, 2, 2, 0, 0);

CREATE TABLE t2 (b INT) ENGINE=MyISAM;

INSERT INTO t2 VALUES (1),(8);

CREATE TABLE t3 (c INT) ENGINE=MyISAM;

INSERT INTO t3 VALUES (8),(3);

PREPARE stmt FROM "

SELECT a, ( b + a ), a, b,

( SELECT MIN(a) FROM t1, t2 WHERE b <> from_sq1.b ) AS select_sq

FROM ( SELECT t2.* FROM t2, t3 ) AS from_sq1, ( SELECT * FROM t1 ) AS from_sq2  

WHERE 0 IN ( 

  SELECT a FROM t1 

  WHERE a IN ( 

    SELECT t1.a FROM t1, v1, t2

    WHERE b = v1.a

  )

)

"; 

EXECUTE stmt;

EXECUTE stmt;