wting1123 opened a new issue, #30530:
URL: https://github.com/apache/shardingsphere/issues/30530

   ### version
   shardingsphere-jdbc-core-spring-boot-starter 5.2.1
   
   ### config
   
![image](https://github.com/apache/shardingsphere/assets/54521069/83727e3f-d584-4d6f-91a0-873b62b33f8f)
   
   
   ### table
   
![image](https://github.com/apache/shardingsphere/assets/54521069/305390bc-a8b0-446e-b960-44793907e9e3)
   
   
   ### Logic SQL
   SELECT count(0)
   FROM (SELECT id, alarm_no, alarm_content, alarm_time
         FROM device_alarm
         WHERE del_flag = 0
           AND alarm_time <= ?
           AND mac_sn = ?
         UNION ALL
         SELECT id, alarm_no, alarm_content, alarm_time
         FROM device_alarm
         WHERE del_flag = 0
           AND alarm_time >= ?
           AND alarm_time <= ?
           AND mac_sn = ?
         UNION ALL
         SELECT id, alarm_no, alarm_content, alarm_time
         FROM device_alarm
         WHERE del_flag = 0
           AND alarm_time >= ?
           AND alarm_time <= ?
           AND mac_sn = ?
         UNION ALL
         SELECT id, alarm_no, alarm_content, alarm_time
         FROM device_alarm
         WHERE del_flag = 0
           AND alarm_time >= ?
           AND alarm_time <= ?
           AND mac_sn = ?
         UNION ALL
         SELECT id, alarm_no, alarm_content, alarm_time
         FROM device_alarm
         WHERE del_flag = 0
           AND alarm_time >= ?
           AND alarm_time <= ?
           AND mac_sn = ?
         UNION ALL
         SELECT id, alarm_no, alarm_content, alarm_time
         FROM device_alarm
         WHERE del_flag = 0
           AND alarm_time >= ?
           AND mac_sn = ?) table_count
   
   
![image](https://github.com/apache/shardingsphere/assets/54521069/f37f027b-ed57-404c-b90a-fbe99f56077d)
   
   
   ### Actual SQL
   
![image](https://github.com/apache/shardingsphere/assets/54521069/b72a162b-8803-4daf-aa7d-c22bdd21197c)
   
   
   


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