评论时间排序修改

@@ -215,7 +215,7 @@ where user_id =? and  (?=0 or id<?)
 )a left outer join chance b on a.source_id = b.id and source_type=1
 )a left outer join chance b on a.source_id = b.id and source_type=1
 )a left outer join chance_data b on a.source_id = b.chance_id and source_type = 1
 )a left outer join chance_data b on a.source_id = b.chance_id and source_type = 1
 )a left outer join comment b on a.source_id = b.id and a.source_type=2
 )a left outer join comment b on a.source_id = b.id and a.source_type=2
-order by create_at desc
+order by comment_time desc
 limit ?`)
 limit ?`)
 
 
 	sqlCount := `select count(0) from comment
 	sqlCount := `select count(0) from comment