"select t.user_id from topic t left join user_extra u on t.user_id = u.user_id where u.is_shadow=0 and t.create_time > '%s' and t.create_time < '%s' "%(numtime,numtime2))
"select t.user_id from topic t left join user_extra u on t.user_id = u.user_id "
"where u.is_shadow=0 and t.create_time > '%s' and t.create_time < '%s' "
"and t.content_level >= %s and t.content_level <= %s "%(numtime,numtime2,str(content_level_low),str(content_level_top)))