#0  charset_info_st::copy_fix (status=0x7f77d4577a60, nchars=4, src_length=6, src=0x7f77c803327c "OBJECT\002\310w\177", dst_length=12, dst=0x7f77c802c5f2 "",
    this=0x555be4d5f100 <my_charset_utf8mb3_general_ci>) at /data/mdb-server/include/m_ctype.h:784
#1  String_copier::well_formed_copy (this=this@entry=0x7f77d4577a60, to_cs=0x555be4d5f100 <my_charset_utf8mb3_general_ci>, to=0x7f77c802c5f2 "", to_length=12,
    from_cs=from_cs@entry=0x555be4d5f100 <my_charset_utf8mb3_general_ci>, from=from@entry=0x7f77c803327c "OBJECT\002\310w\177", from_length=6, nchars=4)
    at /data/mdb-server/sql/sql_string.cc:1130
#2  0x0000555be3bbc156 in Field_longstr::well_formed_copy_with_check (copy_length=<synthetic pointer>, count_spaces=true, nchars=<optimized out>, from_length=6,
    from=0x7f77c803327c "OBJECT\002\310w\177", from_cs=0x555be4d5f100 <my_charset_utf8mb3_general_ci>, to_length=<optimized out>, to=<optimized out>,
    this=0x7f77c802c510) at /data/mdb-server/sql/field.h:4096
#3  Field_varstring::store (this=0x7f77c802c510, from=0x7f77c803327c "OBJECT\002\310w\177", length=6, cs=0x555be4d5f100 <my_charset_utf8mb3_general_ci>)
    at /data/mdb-server/sql/field.cc:7825
#4  0x00007f77f1dc299e in datatypes::StoreFieldMariaDB::store_string (this=0x7f77d4577d60, str=0x7f77c803327c "OBJECT\002\310w\177", length=6)
    at /data/mdb-server/storage/columnstore/columnstore/dbcon/mysql/ha_mcs_datatype.h:87
#5  0x00007f77f1d697cc in datatypes::StoreField::storeConstString (this=0x7f77d4577d60, str=...)
    at /data/mdb-server/storage/columnstore/columnstore/datatypes/mcs_datatype.h:966
#6  0x00007f77f1d5b9aa in datatypes::TypeHandlerStr::storeValueToFieldCharVarchar (this=0x7f77f1fd51a0 <datatypes::mcs_type_handler_varchar>, row=..., pos=0,
    f=0x7f77d4577d60) at /data/mdb-server/storage/columnstore/columnstore/datatypes/mcs_datatype.cpp:467
#7  0x00007f77f1d6db84 in datatypes::TypeHandlerVarchar::storeValueToField (this=0x7f77f1fd51a0 <datatypes::mcs_type_handler_varchar>, row=..., pos=0,
    f=0x7f77d4577d60) at /data/mdb-server/storage/columnstore/columnstore/datatypes/mcs_datatype.h:2282
#8  0x00007f77f1d9ffb6 in (anonymous namespace)::fetchNextRow (buf=0x7f77c802c5f0 <incomplete sequence \375>, ti=..., ci=0x7f77c801d580, timeZone=0,
    handler_flag=false) at /data/mdb-server/storage/columnstore/columnstore/dbcon/mysql/ha_mcs_impl.cpp:440
#9  0x00007f77f1dbaf97 in ha_mcs_impl_select_next (buf=0x7f77c802c5f0 <incomplete sequence \375>, table=0x7f77c801ea10, timeZone=0)
    at /data/mdb-server/storage/columnstore/columnstore/dbcon/mysql/ha_mcs_impl.cpp:5363
#10 0x00007f77f1d91c05 in ha_columnstore_select_handler::next_row (this=0x7f77c801e6e0)
    at /data/mdb-server/storage/columnstore/columnstore/dbcon/mysql/ha_mcs_pushdown.cpp:1037
#11 0x0000555be399e438 in select_handler::execute (this=0x7f77c801e6e0) at /data/mdb-server/sql/select_handler.cc:142
#12 0x0000555be396dd47 in JOIN::exec_inner (this=this@entry=0x7f77c8017c50) at /data/mdb-server/sql/sql_select.cc:4708
#13 0x0000555be396de81 in JOIN::exec (this=this@entry=0x7f77c8017c50) at /data/mdb-server/sql/sql_select.cc:4515
#14 0x0000555be396be8d in mysql_select (thd=thd@entry=0x7f77c8003d08, tables=0x7f77c8016c60, fields=..., conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0,
    proc_param=0x0, select_options=2147748608, result=0x7f77c8017c28, unit=0x7f77c8008048, select_lex=0x7f77c8016558) at /data/mdb-server/sql/sql_select.cc:4994
#15 0x0000555be396c143 in handle_select (thd=thd@entry=0x7f77c8003d08, lex=lex@entry=0x7f77c8007f80, result=result@entry=0x7f77c8017c28,
    setup_tables_done_option=setup_tables_done_option@entry=0) at /data/mdb-server/sql/sql_select.cc:545
#16 0x0000555be38e231d in execute_sqlcom_select (thd=thd@entry=0x7f77c8003d08, all_tables=0x7f77c8016c60) at /data/mdb-server/sql/sql_parse.cc:6255
--Type <RET> for more, q to quit, c to continue without paging--
#17 0x0000555be38ed681 in mysql_execute_command (thd=thd@entry=0x7f77c8003d08, is_called_from_prepared_stmt=is_called_from_prepared_stmt@entry=false)
    at /data/mdb-server/sql/sql_parse.cc:3945
#18 0x0000555be38db9ff in mysql_parse (thd=thd@entry=0x7f77c8003d08, rawbuf=<optimized out>, length=<optimized out>,
    parser_state=parser_state@entry=0x7f77d4579450) at /data/mdb-server/sql/sql_parse.cc:8029
#19 0x0000555be38e9ad6 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x7f77c8003d08, packet=packet@entry=0x7f77c800d769 "",
    packet_length=packet_length@entry=28, blocking=blocking@entry=true) at /data/mdb-server/sql/sql_class.h:1358
#20 0x0000555be38ec0f5 in do_command (thd=0x7f77c8003d08, blocking=blocking@entry=true) at /data/mdb-server/sql/sql_parse.cc:1404
#21 0x0000555be3a4f3d9 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x555be7634668, put_in_cache=put_in_cache@entry=true)
    at /data/mdb-server/sql/sql_connect.cc:1418
#22 0x0000555be3a4f9d8 in handle_one_connection (arg=arg@entry=0x555be7634668) at /data/mdb-server/sql/sql_connect.cc:1312
#23 0x0000555be3ed1125 in pfs_spawn_thread (arg=0x555be768dd08) at /data/mdb-server/storage/perfschema/pfs.cc:2201
#24 0x00007f77f3c5f609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#25 0x00007f77f3b82163 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95