2011-12-13 15:24:20.900529+00:00
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https://bugs.launchpad.net/bugs/612543
Philip Stoev
Timour Katchaounov
Maria 5.3
Crash in Item_field::used_tables() with view + subquery + prepared statements
Fix Released
Wishlist
2010-08-02 13:16:37.966647+00:00
('f','f' in ( (select `test`.`C`.`col_varchar_key` from `test`.`C` ), ('f' in on distinct_key where (('f' = `materialized subselect`.`col_varchar_key`))))) and `test`.`table1`.`col_varchar_key`)
backtrace:
#3 0x0827e86a in handle_segfault (sig=11) at mysqld.cc:2703
#4
#5 0x081bdb4e in Item_field::used_tables (this=0xb5e728b0) at item.cc:2265
#6 0x0823402c in Item_in_subselect::update_used_tables (this=0xb5e58358) at item_subselect.cc:2194
#7 0x081e10e7 in Item_func::update_used_tables (this=0xb5e58730) at item_func.cc:384
#8 0x08313ca3 in build_equal_items_for_cond (thd=0x98eb4f8, cond=0xb5e58730, inherited=0xb5e73940) at sql_select.cc:9055
#9 0x08313809 in build_equal_items_for_cond (thd=0x98eb4f8, cond=0xb5e738a8, inherited=0xb5e73940) at sql_select.cc:8973
#10 0x08313d08 in build_equal_items (thd=0x98eb4f8, cond=0xb5e738a8, inherited=0x0, join_list=0xb5e71e08, cond_equal_ref=0xb5e66988) at sql_select.cc:9136
#11 0x08316754 in optimize_cond (join=0xb5e61b78, conds=0xb5e738a8, join_list=0xb5e71e08, cond_value=0xb5e668dc) at sql_select.cc:10403
#12 0x082fce38 in JOIN::optimize (this=0xb5e61b78) at sql_select.cc:802
#13 0x083030a4 in mysql_select (thd=0x98eb4f8, rref_pointer_array=0xb5e71e50, tables=0xb5e72628, wild_num=0, fields=..., conds=0xb5e738a8, og_num=0,
order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2416200192, result=0xb5e584c0, unit=0xb5e71a94, select_lex=0xb5e71d34)
at sql_select.cc:2542
#14 0x082fb71b in handle_select (thd=0x98eb4f8, lex=0xb5e71a38, result=0xb5e584c0, setup_tables_done_option=0) at sql_select.cc:276
#15 0x0829a164 in execute_sqlcom_select (thd=0x98eb4f8, all_tables=0xb5e72628) at sql_parse.cc:5081
#16 0x08290b3c in mysql_execute_command (thd=0x98eb4f8) at sql_parse.cc:2265
#17 0x0834247f in Prepared_statement::execute (this=0xb5e73508, expanded_query=0xb619f410, open_cursor=false) at sql_prepare.cc:3588
#18 0x0834197e in Prepared_statement::execute_loop (this=0xb5e73508, expanded_query=0xb619f410, open_cursor=false, packet=0x0, packet_end=0x0)
at sql_prepare.cc:3263
#19 0x0834036a in mysql_sql_stmt_execute (thd=0x98eb4f8) at sql_prepare.cc:2533
#20 0x08290b66 in mysql_execute_command (thd=0x98eb4f8) at sql_parse.cc:2274
#21 0x0829c325 in mysql_parse (thd=0x98eb4f8, inBuf=0xb5e58978 "EXECUTE st1", length=11, found_semicolon=0xb61a0230) at sql_parse.cc:6027
#22 0x0828e5f2 in dispatch_command (command=COM_QUERY, thd=0x98eb4f8, packet=0x98ed519 "EXECUTE st1", packet_length=11) at sql_parse.cc:1184
#23 0x0828dae0 in do_command (thd=0x98eb4f8) at sql_parse.cc:890
#24 0x0828ac78 in handle_one_connection (arg=0x98eb4f8) at sql_connect.cc:1153
#25 0x00a08919 in start_thread () from /lib/libpthread.so.0
#26 0x00951e5e in clone () from /lib/libc.so.6]]>
bug
Philip Stoev
added bug
maria: importance
Philip Stoev
maria: milestone
Philip Stoev
maria: assignee
Timour Katchaounov
maria: status
Timour Katchaounov
maria: importance
Timour Katchaounov
maria: status
Timour Katchaounov
maria: status
Daniel Bartholomew
Philip Stoev
Philip Stoev
Igor Babaev
PREPARE st1 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
Query OK, 0 rows affected (0.00 sec)
Statement prepared
MariaDB [test]> EXECUTE st1;
+------+------+------+
| f1 | f2 | f3 |
+------+------+------+
| 2 | x | x |
| 5 | y | x |
+------+------+------+
2 rows in set (0.01 sec)
MariaDB [test]> EXECUTE st1;
ERROR 2013 (HY000): Lost connection to MySQL server during query
]]>
Timour Katchaounov
Timour Katchaounov
'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st1;
EXECUTE st1;
set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off';
PREPARE st2 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st2;
EXECUTE st2;
set @@optimizer_switch='materialization=on,in_to_exists=on,semijoin=off';
PREPARE st3 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st3;
EXECUTE st3;
]]>
Timour Katchaounov
Timour Katchaounov