MariaDB server crash ( select with union and order by with subquery )

CREATE TABLE sample ( id INTEGER, sample_name1 VARCHAR(100), sample_name2 VARCHAR(100), PRIMARY KEY(id) );

INSERT INTO sample ( id, sample_name1, sample_name2 ) VALUES ( 1, 'aaaa', 'bbbb' ), ( 2, 'cccc', 'dddd' );

(

	SELECT sample_name1 AS testname FROM sample

)

UNION

(

	SELECT sample_name2 AS testname FROM sample C ORDER BY (SELECT T.sample_name1 FROM sample T WHERE T.id = C.id)

)

141014  9:47:29 [ERROR] mysqld got signal 11 ;

This could be because you hit a bug. It is also possible that this binary

or one of the libraries it was linked against is corrupt, improperly built,

or misconfigured. This error can also be caused by malfunctioning hardware.

To report this bug, see http://kb.askmonty.org/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help

diagnose the problem, but since we have already crashed,

something is definitely wrong and this may fail.

Server version: 10.0.14-MariaDB-log

key_buffer_size=268435456

read_buffer_size=131072

max_used_connections=1

max_threads=102

thread_count=2

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 486186 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x0x7f6ea8bf5008

Attempting backtrace. You can use the following information to find out

where mysqld died. If you see no messages after this, something went

terribly wrong...

stack_bottom = 0x7f6e98d3ad30 thread_stack 0x40000

/usr/sbin/mysqld(my_print_stacktrace+0x2b)[0xb6b85b]

/usr/sbin/mysqld(handle_fatal_signal+0x398)[0x723f08]

/lib64/libpthread.so.0(+0xf710)[0x7f6f0b486710]

/usr/sbin/mysqld(_ZN10Item_field15fix_outer_fieldEP3THDPP5FieldPP4Item+0xce)[0x7440be]

/usr/sbin/mysqld(_ZN10Item_field10fix_fieldsEP3THDPP4Item+0x555)[0x744dd5]

/usr/sbin/mysqld(_ZN9Item_func10fix_fieldsEP3THDPP4Item+0x198)[0x772ac8]

/usr/sbin/mysqld(_Z11setup_condsP3THDP10TABLE_LISTR4ListIS1_EPP4Item+0x19c)[0x592f0c]

/usr/sbin/mysqld[0x6125c2]

/usr/sbin/mysqld(_ZN30subselect_single_select_engine7prepareEv+0x125)[0x7a0635]

/usr/sbin/mysqld(_ZN14Item_subselect10fix_fieldsEP3THDPP4Item+0xe5)[0x79de55]

/usr/sbin/mysqld[0x5f5290]

/usr/sbin/mysqld[0x612fc4]

/usr/sbin/mysqld(_ZN18st_select_lex_unit7prepareEP3THDP13select_resultm+0x32d)[0x65fcad]

/usr/sbin/mysqld(_Z11mysql_unionP3THDP3LEXP13select_resultP18st_select_lex_unitm+0x1f)[0x66056f]

/usr/sbin/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x85)[0x623145]

/usr/sbin/mysqld[0x5cac06]

/usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x4c97)[0x5d58d7]

/usr/sbin/mysqld[0x5d7402]

/usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x1b20)[0x5d95c0]

/usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x453)[0x6946a3]

/usr/sbin/mysqld(handle_one_connection+0x42)[0x694772]

/lib64/libpthread.so.0(+0x79d1)[0x7f6f0b47e9d1]

/lib64/libc.so.6(clone+0x6d)[0x7f6f09b9cb6d]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x7f6e98843020): is an invalid pointer

Connection ID (thread ID): 4

Status: NOT_KILLED

Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_

keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,sem

ijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=on

The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains

information that should help you find out what is causing the crash.

141014 09:47:29 mysqld_safe Number of processes running now: 0

141014 09:47:29 mysqld_safe mysqld restarted

SET optimizer_switch='derived_merge=off';

SET optimizer_switch='derived_with_keys=off';

SET optimizer_switch='engine_condition_pushdown=off';

SET optimizer_switch='exists_to_in=off';

SET optimizer_switch='extended_keys=off';

SET optimizer_switch='firstmatch=off';

SET optimizer_switch='index_condition_pushdown=off';

SET optimizer_switch='index_merge=off';

SET optimizer_switch='index_merge_intersection=off';

SET optimizer_switch='index_merge_sort_intersection=off';

SET optimizer_switch='index_merge_sort_union=off';

SET optimizer_switch='index_merge_union=off';

SET optimizer_switch='in_to_exists=off'; ###################

SET optimizer_switch='join_cache_bka=off';

SET optimizer_switch='join_cache_hashed=off';

SET optimizer_switch='join_cache_incremental=off';

SET optimizer_switch='loosescan=off';

SET optimizer_switch='mrr=off';

SET optimizer_switch='mrr_cost_based=off';

SET optimizer_switch='mrr_sort_keys=off';

SET optimizer_switch='materialization=on';

SET optimizer_switch='subquery_cache=off';

SET optimizer_switch='semijoin=off';

SET optimizer_switch='semijoin_with_cache=off';

SET optimizer_switch='firstmatch=off';

SET optimizer_switch='partial_match_rowid_merge=off';

SET optimizer_switch='partial_match_table_scan=off';

SET optimizer_switch='outer_join_with_cache=off';##

SET optimizer_switch='optimize_join_buffer_size=off';##

SET optimizer_switch='table_elimination=off';