DNAMES: Assertion `column_name->length < 255' failed on a column name with length 255 (precisely)

5.5-dnames/mysys/ma_dyncol.c:223: put_header_entry_str: Assertion `column_name->length < 255' failed.

[ERROR] mysqld got signal 6 ;

#8  0xb74ba014 in __assert_fail () from /lib/libc.so.6

#9  0x0889f34e in put_header_entry_str (hdr=0xad128ba8, column_key=0x971f280, value=0x971f240, offset=0)

    at mysys/ma_dyncol.c:223

#10 0x088a0f45 in dynamic_new_column_store (str=0xad128c84, hdr=0xad128ba8, column_count=1,

    column_keys=0x971f280, values=0x971f240, new_str=1 '\001')

    at mysys/ma_dyncol.c:1330

#11 0x088a11c0 in dynamic_column_create_many_internal_fmt (str=0xad128c84, column_count=1,

    column_keys=0x971f280, values=0x971f240, new_str=1 '\001', string_keys=1 '\001')

    at mysys/ma_dyncol.c:1413

#12 0x088a1303 in dynamic_column_create_many_fmt (str=0xad128c84, column_count=1,

    column_keys=0x971f280 "\230\362q\t\377", values=0x971f240, names=1 '\001')

    at mysys/ma_dyncol.c:1487

#13 0x0845251f in Item_func_dyncol_create::val_str (this=0x971ed48, str=0xad1290b4)

    at sql/item_strfunc.cc:4001

#14 0x083eb321 in Item::send (this=0x971ed48, protocol=0x966f7b0, buffer=0xad1290b4)

    at sql/item.cc:6317

#15 0x081aad13 in Protocol::send_result_set_row (this=0x966f7b0, row_items=0x9670e78)

    at sql/protocol.cc:900

#16 0x08207a4e in select_send::send_data (this=0x971eeb8, items=...)

    at sql/sql_class.cc:2275

#17 0x0826d5cb in JOIN::exec (this=0x971eec8) at sql/sql_select.cc:2229

#18 0x0826ff66 in mysql_select (thd=0x966f350, rref_pointer_array=0x9670f20, tables=0x0, wild_num=0,

    fields=..., conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0,

    select_options=2147748608, result=0x971eeb8, unit=0x9670930, select_lex=0x9670de0)

    at sql/sql_select.cc:3050

#19 0x08267932 in handle_select (thd=0x966f350, lex=0x96708cc, result=0x971eeb8, setup_tables_done_option=0)

    at sql/sql_select.cc:313

#20 0x08243498 in execute_sqlcom_select (thd=0x966f350, all_tables=0x0)

    at sql/sql_parse.cc:4621

#21 0x0823c432 in mysql_execute_command (thd=0x966f350) at sql/sql_parse.cc:2189

#22 0x08245a89 in mysql_parse (thd=0x966f350, rawbuf=0x971ea48 "SELECT COLUMN_CREATE(REPEAT('a',255),1)",

    length=39, parser_state=0xad129da4) at sql/sql_parse.cc:5736

#23 0x08239ed4 in dispatch_command (command=COM_QUERY, thd=0x966f350, packet=0x9718d19 "", packet_length=39)

    at sql/sql_parse.cc:1055

#24 0x08239399 in do_command (thd=0x966f350) at sql/sql_parse.cc:794

#25 0x08325471 in do_handle_one_connection (thd_arg=0x966f350)

    at sql/sql_connect.cc:1253

#26 0x08324fbc in handle_one_connection (arg=0x966f350) at sql/sql_connect.cc:1168

#27 0x0854fd1b in pfs_spawn_thread (arg=0x9774450) at storage/perfschema/pfs.cc:1015

#28 0xb779ab25 in start_thread () from /lib/libpthread.so.0

#29 0xb756938e in clone () from /lib/libc.so.6

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

Query (0x971ea48): SELECT COLUMN_CREATE(REPEAT('a',255),1)

Connection ID (thread ID): 2

Status: NOT_KILLED

bzr version-info

revision-id: sanja@askmonty.org-20120823152900-3ngz79t2yvtq28f6

date: 2012-08-23 18:29:00 +0300

build-date: 2012-08-26 05:49:12 +0400

revno: 3496

SELECT COLUMN_CREATE(REPEAT('a',255),1);