Which users liked topic

Product Support
4

Ah, good old topic_users

topic_users
user_id    integer    fkey users 
topic_id    integer    fkey topics 
posted    boolean    default false 
last_read_post_number    integer    null 
highest_seen_post_number    integer    null 
last_visited_at    timestamp    null 
first_visited_at    timestamp    null 
notification_level    integer    default 1 
notifications_changed_at    timestamp    null 
notifications_reason_id    integer    null 
total_msecs_viewed    integer    default 0 
cleared_pinned_at    timestamp    null 
id    serial    primary key 
last_emailed_post_number    integer    null 
liked    boolean    null, default false, denormal post_actions 
bookmarked    boolean    null, default false, denormal post_actions