LEFT OUTER JOIN (SELECT * FROM forum_thread_visits WHERE uid = $1) ftv USING (ftid)
WHERE EXISTS (SELECT fbid FROM forum_access WHERE fbid = fb.fbid AND gid IN (SELECT groups($1)))
GROUP BY fcid,category,fb.fbid, fb.board
LEFT OUTER JOIN (SELECT * FROM forum_thread_visits WHERE uid = $1) ftv USING (ftid)
WHERE EXISTS (SELECT fbid FROM forum_access WHERE fbid = fb.fbid AND gid IN (SELECT groups($1)))
GROUP BY fcid,category,fb.fbid, fb.board