mysql> describe thread_reaction;
+--------------+------------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+--------------+------------------+------+-----+---------+-------+
| tr_thread | int(10) unsigned | NO | PRI | NULL | |
| tr_user | int(10) unsigned | NO | PRI | NULL | |
| tr_user_text | varbinary(255) | NO | PRI | NULL | |
| tr_type | varbinary(64) | NO | PRI | NULL | |
| tr_value | int(11) | NO | PRI | NULL | |
+--------------+------------------+------+-----+---------+-------+