2011-12-13 15:24:12.196143+00:00
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https://bugs.launchpad.net/bugs/611690
Philip Stoev
Timour Katchaounov
Maria 5.3
Crash in select_describe() with nested subqueries
Fix Released
Wishlist
2010-07-30 13:02:32.444833+00:00
#5 0x0832ac27 in select_describe (join=0xb5f5e588, need_tmp_table=true, need_order=true, distinct=false, message=0x0) at sql_select.cc:18371
#6 0x083013e2 in JOIN::exec (this=0xb5f5e588) at sql_select.cc:1894
#7 0x083038ea in mysql_select (thd=0xa63dfb8, rref_pointer_array=0xb5f32af4, tables=0xb5f33060, wild_num=0, fields=..., conds=0x0, og_num=2, order=0x0,
group=0xb5f33320, having=0x0, proc_param=0x0, select_options=2147764740, result=0xb5f528d0, unit=0xb5f32b90, select_lex=0xb5f329f0) at sql_select.cc:2556
#8 0x0832cd00 in mysql_explain_union (thd=0xa63dfb8, unit=0xb5f32b90, result=0xb5f528d0) at sql_select.cc:18833
#9 0x0832c910 in select_describe (join=0xb5f59718, need_tmp_table=false, need_order=false, distinct=false, message=0x0) at sql_select.cc:18774
#10 0x083013e2 in JOIN::exec (this=0xb5f59718) at sql_select.cc:1894
#11 0x083038ea in mysql_select (thd=0xa63dfb8, rref_pointer_array=0xb5f31fbc, tables=0xb5f32410, wild_num=0, fields=..., conds=0x0, og_num=0, order=0x0,
group=0x0, having=0x0, proc_param=0x0, select_options=2147764740, result=0xb5f528d0, unit=0xb5f32058, select_lex=0xb5f31eb8) at sql_select.cc:2556
#12 0x0832cd00 in mysql_explain_union (thd=0xa63dfb8, unit=0xb5f32058, result=0xb5f528d0) at sql_select.cc:18833
#13 0x0832c910 in select_describe (join=0xb5f548a8, need_tmp_table=false, need_order=false, distinct=false, message=0x8896c84 "Impossible WHERE")
at sql_select.cc:18774
#14 0x0831305f in return_zero_rows (join=0xb5f548a8, result=0xb5f528d0, tables=0xb5f31ca8, fields=..., send_row=false, select_options=2147764740,
info=0x8896c84 "Impossible WHERE", having=0x0) at sql_select.cc:8357
#15 0x083010d5 in JOIN::exec (this=0xb5f548a8) at sql_select.cc:1856
#16 0x083038ea in mysql_select (thd=0xa63dfb8, rref_pointer_array=0xa63fa2c, tables=0xb5f31ca8, wild_num=0, fields=..., conds=0xb5f337b0, og_num=0,
order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2147764740, result=0xb5f528d0, unit=0xa63f690, select_lex=0xa63f928)
at sql_select.cc:2556
#17 0x0832cd00 in mysql_explain_union (thd=0xa63dfb8, unit=0xa63f690, result=0xb5f528d0) at sql_select.cc:18833
#18 0x0829a547 in execute_sqlcom_select (thd=0xa63dfb8, all_tables=0xb5f31ca8) at sql_parse.cc:5059
#19 0x082910b8 in mysql_execute_command (thd=0xa63dfb8) at sql_parse.cc:2265
#20 0x0829c8b9 in mysql_parse (thd=0xa63dfb8,
inBuf=0xb5f31900 "EXPLAIN\nSELECT `col_varchar_key`\nFROM CC\nWHERE (\nSELECT SUBQUERY2_t1 .`col_int_nokey`\nFROM CC SUBQUERY2_t1 JOIN CC ON ( 150 , 5 ) IN (\nSELECT `col_int_key` CHILD_SUBQUERY1_field1 , `col_int_ke"..., length=298, found_semicolon=0xb60ff230) at sql_parse.cc:6027
#21 0x0828eaea in dispatch_command (command=COM_QUERY, thd=0xa63dfb8, packet=0xa656311 "", packet_length=301) at sql_parse.cc:1184
#22 0x0828df90 in do_command (thd=0xa63dfb8) at sql_parse.cc:890
#23 0x0828b0f0 in handle_one_connection (arg=0xa63dfb8) at sql_connect.cc:1153
#24 0x00a08919 in start_thread () from /lib/libpthread.so.0
#25 0x00951e5e in clone () from /lib/libc.so.6]]>
bug
Philip Stoev
added bug
maria: importance
Philip Stoev
maria: milestone
Philip Stoev
maria: assignee
Philip Stoev
maria: status
Timour Katchaounov
maria: importance
Timour Katchaounov
maria: status
Timour Katchaounov
maria: status
Timour Katchaounov
maria: importance
Timour Katchaounov
maria: status
Timour Katchaounov
maria: status
Daniel Bartholomew
Philip Stoev
Philip Stoev
Philip Stoev
Timour Katchaounov
pos_in_table_list;
item_list.push_back(new Item_string(real_table->alias,
strlen(real_table->alias),
because real_table == NULL.
- 5.3 with materialization=off:
+----+--------------------+--------------+-------+---------------+-------------+---------+------+------+---------------------------------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+--------------------+--------------+-------+---------------+-------------+---------+------+------+---------------------------------+
| 1 | PRIMARY | NULL | NULL | NULL | NULL | NULL | NULL | NULL | Impossible WHERE |
| 2 | SUBQUERY | SUBQUERY2_t1 | index | NULL | col_int_key | 5 | NULL | 20 | Using index |
| 2 | SUBQUERY | SUBQUERY2_t2 | ALL | NULL | NULL | NULL | NULL | 20 | Using where; Using join buffer |
| 3 | DEPENDENT SUBQUERY | CC | ALL | NULL | NULL | NULL | NULL | 20 | Using temporary; Using filesort |
+----+--------------------+--------------+-------+---------------+-------------+---------+------+------+---------------------------------+
]]>
Timour Katchaounov
Timour Katchaounov
Timour Katchaounov