天网码流修改

business-service/src/main/resources/mapper/TerminalHeartbeatLogMapper.xml

@@ -5,7 +5,7 @@
     <select id="terminalHeartbeatLogList" resultType="com.ozs.entity.TerminalHeartbeatLog">
         SELECT camera_code,channel
 FROM (
-    SELECT DISTINCT camera_code
+    SELECT DISTINCT camera_code,channel
     FROM terminal_heartbeat_log
     LIMIT 4
 ) AS subquery