Too large scale in DECIMAL dynamic column getter crashes mysqld

    CREATE TABLE `product` (

        `id` INT(11) NOT NULL AUTO_INCREMENT,

        `name` VARCHAR(128),

        `dynamic_columns` BLOB,

        PRIMARY KEY (`id`)

    ) ENGINE =InnoDB DEFAULT CHARSET =utf8;

    INSERT INTO `product` (name, dynamic_columns) VALUES (

        'name1',

        COLUMN_CREATE(

            'str', 'value1',

            'int', 123,

            'float', 123.456,

            'bool', true,

            'null', null,

            'children', COLUMN_CREATE(

                'str', 'value1',

                'int', 123,

                'float', 123.456,

                'bool', true,

                'null', null)));

    SELECT COLUMN_GET(`dynamic_columns`, 'float' AS DECIMAL(6,34)) FROM `product`;

150126 16:50:38 [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: 10.0.15-MariaDB

key_buffer_size=2147483648

read_buffer_size=131072

max_used_connections=3

max_threads=153

thread_count=3

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 2433222 K  bytes of memory

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

Thread pointer: 0x0x7f9d21841408

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 = 0x21b408e90 thread_stack 0x48000

0   mysqld                              0x0000000107a9482d my_print_stacktrace + 60

0   mysqld                              0x000000010757b2cd handle_fatal_signal + 602

0   libsystem_platform.dylib            0x00007fff8cf625aa _sigtramp + 26

0   libsystem_malloc.dylib              0x00007fff8e922868 malloc_zone_malloc + 71

0   mysqld                              0x000000010774cd8c _ZN6String6appendEPKcj + 194

0   mysqld                              0x00000001075dd587 _ZN15Item_dyncol_get5printEP6String15enum_query_type + 43

0   mysqld                              0x00000001075b4a60 _ZL9item_nameP4ItemP6String + 40

0   mysqld                              0x00000001075ab0cf _ZL21wrong_precision_errorjP4Itemym + 135

0   mysqld                              0x00000001075ab00f _Z20get_length_and_scaleyyPmPjjjP4Item + 59

0   mysqld                              0x00000001075b46e6 _Z16create_func_castP3THDP4Item11Cast_targetPKcS5_PK15charset_info_st + 1018

0   mysqld                              0x00000001077fc207 _Z10MYSQLparseP3THD + 58895

0   mysqld                              0x00000001076e3a2f _Z9parse_sqlP3THDP12Parser_stateP19Object_creation_ctxb + 124

0   mysqld                              0x00000001076db751 _Z11mysql_parseP3THDPcjP12Parser_state + 164

0   mysqld                              0x00000001076d9131 _Z16dispatch_command19enum_server_commandP3THDPcj + 1003

0   mysqld                              0x00000001076db408 _Z10do_commandP3THD + 231

0   mysqld                              0x00000001077a1883 _Z24do_handle_one_connectionP3THD + 383

0   mysqld                              0x00000001077a16f7 handle_one_connection + 59

0   libsystem_pthread.dylib             0x00007fff8f2d0899 _pthread_body + 138

0   libsystem_pthread.dylib             0x00007fff8f2d072a _pthread_struct_init + 0

0   libsystem_pthread.dylib             0x00007fff8f2d4fc9 thread_start + 13

Trying to get some variables.

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

Query (0x7f9d21038220): is an invalid pointer

Connection ID (thread ID): 2

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,semijoin_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.

150126 16:50:38 mysqld_safe mysqld restarted

[clint-server]

socket = /tmp/mysql.sock

max_allowed_packet = 1024M

[mysqld]

user = fsb

datadir = /Volumes/RAIDv2/mysql

key_buffer_size = 2G

innodb_buffer_pool_size = 2G

net_write_timeout = 3600

net_read_timeout = 3600

max_allowed_packet = 1024M

[mysqlhotcopy]

interactive-timeout