MySQL#74504 - Assertion `map->bitmap && map2->bitmap && map->n_bits==map2->n_bits' failed in bitmap_union

CREATE TABLE t1(a int)PARTITION BY KEY (a) (PARTITION x0,PARTITION x1);

lock tables t1 write,t1 as t0 write,t1 as t2 read;

ALTER TABLE t1 MODIFY a CHAR(1)CHARACTER SET ucs2 COLLATE ucs2_czech_ci;

ALTER TABLE t1 COALESCE PARTITION 1;

10.0/mysys/my_bitmap.c:560: bitmap_union: Assertion `map->bitmap && map2->bitmap && map->n_bits==map2->n_bits' failed.

141108 17:54:58 [ERROR] mysqld got signal 6 ;

#6  0x00007fc1aa22c6f1 in *__GI___assert_fail (assertion=0x113ef10 "map->bitmap && map2->bitmap && map->n_bits==map2->n_bits", file=<optimized out>, line=560, function=0x113f039 "bitmap_union") at assert.c:81

#7  0x0000000000e390a8 in bitmap_union (map=0x7fc196c7eef8, map2=0x7fc196e4b5d0) at 10.0/mysys/my_bitmap.c:559

#8  0x0000000000e11310 in ha_partition::external_lock (this=0x7fc196c7e888, thd=0x7fc1a3f0b070, lock_type=1) at 10.0/sql/ha_partition.cc:3783

#9  0x000000000087467c in handler::ha_external_lock (this=0x7fc196c7e888, thd=0x7fc1a3f0b070, lock_type=1) at 10.0/sql/handler.cc:5890

#10 0x000000000094a78c in lock_external (thd=0x7fc1a3f0b070, tables=0x7fc196ce2d58, count=1) at 10.0/sql/lock.cc:359

#11 0x000000000094a4e0 in mysql_lock_tables (thd=0x7fc1a3f0b070, sql_lock=0x7fc196ce2d30, flags=2155) at 10.0/sql/lock.cc:309

#12 0x000000000094a3f1 in mysql_lock_tables (thd=0x7fc1a3f0b070, tables=0x7fc196f20258, count=1, flags=2155) at 10.0/sql/lock.cc:276

#13 0x000000000061c24f in Locked_tables_list::reopen_tables (this=0x7fc1a3f0ebe8, thd=0x7fc1a3f0b070) at 10.0/sql/sql_base.cc:2964

#14 0x00000000009d9de9 in handle_alter_part_error (lpt=0x7fc1ac1adaa0, action_completed=true, drop_partition=false, frm_install=false, close_table=false) at 10.0/sql/sql_partition.cc:6770

#15 0x00000000009db000 in fast_alter_partition_table (thd=0x7fc1a3f0b070, table=0x7fc196c9fc70, alter_info=0x7fc1ac1af390, create_info=0x7fc1ac1af420, table_list=0x7fc196e1d180, db=0x7fc196e1d758 "test", table_name=0x7fc196e1d148 "t1") at 10.0/sql/sql_partition.cc:7181

#16 0x0000000000730735 in mysql_alter_table (thd=0x7fc1a3f0b070, new_db=0x7fc196e1d758 "test", new_name=0x0, create_info=0x7fc1ac1af420, table_list=0x7fc196e1d180, alter_info=0x7fc1ac1af390, order_num=0, order=0x0, ignore=false) at 10.0/sql/sql_table.cc:8518

#17 0x0000000000798d74 in Sql_cmd_alter_table::execute (this=0x7fc196e1d768, thd=0x7fc1a3f0b070) at 10.0/sql/sql_alter.cc:312

#18 0x00000000006827c8 in mysql_execute_command (thd=0x7fc1a3f0b070) at 10.0/sql/sql_parse.cc:5078

#19 0x000000000068586f in mysql_parse (thd=0x7fc1a3f0b070, rawbuf=0x7fc196e1d088 "ALTER TABLE t1 COALESCE PARTITION 1", length=35, parser_state=0x7fc1ac1b0630) at 10.0/sql/sql_parse.cc:6407

#20 0x0000000000678652 in dispatch_command (command=COM_QUERY, thd=0x7fc1a3f0b070, packet=0x7fc198ff2071 "ALTER TABLE t1 COALESCE PARTITION 1", packet_length=35) at 10.0/sql/sql_parse.cc:1299

#21 0x00000000006779f7 in do_command (thd=0x7fc1a3f0b070) at 10.0/sql/sql_parse.cc:996

#22 0x00000000007944aa in do_handle_one_connection (thd_arg=0x7fc1a3f0b070) at 10.0/sql/sql_connect.cc:1379

#23 0x00000000007941fd in handle_one_connection (arg=0x7fc1a3f0b070) at 10.0/sql/sql_connect.cc:1293

#24 0x0000000000ccb4a6 in pfs_spawn_thread (arg=0x7fc1a3fd9df0) at 10.0/storage/perfschema/pfs.cc:1860

#25 0x00007fc1abde5b50 in start_thread (arg=<optimized out>) at pthread_create.c:304

#26 0x00007fc1aa2dd20d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112

bzr version-info

revision-id: sergii@pisem.net-20141103164737-457hfby1eg82zol9

date: 2014-11-03 17:47:37 +0100

build-date: 2014-11-08 18:03:42 +0400

revno: 4471

branch-nick: 10.0