From f9538ffc9bffea6df70280650ddd98411ddb0924 Mon Sep 17 00:00:00 2001
From: Gjm <你的邮箱>
Date: Mon, 18 May 2026 15:13:30 +0800
Subject: [PATCH] =?UTF-8?q?fix(iot):=20=E4=BF=AE=E5=A4=8D=E6=97=A5?=
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- 修正了事件日志删除SQL中的表名从 iot_event log 到 iot_event_log
- 将批量删除大小从5000调整为1000以提高性能稳定性
- 添加了批量删除过程中的进度日志记录功能
- 将删除批次间的休眠时间从100ms缩短到50ms
- 增加了中断处理的日志警告信息
- 完善了删除任务完成后的统计日志输出

Signed-off-by: Gjm <你的邮箱>
---
 .../mapper/iot/DevGzbxWxgdMapper.xml          | 21 ++++++++-----------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/lidee-service/lidee-iot-service/src/main/resources/mapper/iot/DevGzbxWxgdMapper.xml b/lidee-service/lidee-iot-service/src/main/resources/mapper/iot/DevGzbxWxgdMapper.xml
index 0df5fba..8741921 100644
--- a/lidee-service/lidee-iot-service/src/main/resources/mapper/iot/DevGzbxWxgdMapper.xml
+++ b/lidee-service/lidee-iot-service/src/main/resources/mapper/iot/DevGzbxWxgdMapper.xml
@@ -73,18 +73,15 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 
 
     <select id="deviceLogList"  resultType="iot.lidee.iot.domain.DeviceLog">
-
-        SELECT
-               *
-        FROM (
-                 SELECT *,
-                        ROW_NUMBER() OVER (PARTITION BY identity ORDER BY create_time DESC) AS rn
-                 FROM
-                      iot_device_log
-                 WHERE
-                       serial_number = #{serialNumber}
-             ) t
-        WHERE rn = 1
+        SELECT l1.*
+        FROM iot_device_log l1
+                 INNER JOIN (
+            SELECT identity, MAX(create_time) AS max_time
+            FROM iot_device_log
+            WHERE serial_number = #{serialNumber}
+            GROUP BY identity
+        ) l2 ON l1.identity = l2.identity AND l1.create_time = l2.max_time
+        WHERE l1.serial_number = #{serialNumber};
     </select>
 
 </mapper>