From ecc14b8398e4b7072a3e4b6096e084fadd4a51d8 Mon Sep 17 00:00:00 2001
From: linwei <872216696@qq.com>
Date: Thu, 02 Apr 2026 11:29:51 +0800
Subject: [PATCH] opt: sql改造其他模块改造3

---
 drone-service/drone-fw/src/main/java/org/sxkj/fw/area/mapper/FwDefenseSceneManageMapper.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drone-service/drone-fw/src/main/java/org/sxkj/fw/area/mapper/FwDefenseSceneManageMapper.xml b/drone-service/drone-fw/src/main/java/org/sxkj/fw/area/mapper/FwDefenseSceneManageMapper.xml
index d8653ca..92c59f1 100644
--- a/drone-service/drone-fw/src/main/java/org/sxkj/fw/area/mapper/FwDefenseSceneManageMapper.xml
+++ b/drone-service/drone-fw/src/main/java/org/sxkj/fw/area/mapper/FwDefenseSceneManageMapper.xml
@@ -61,7 +61,7 @@
         else length(ds.area_divide_ids) - length(replace(ds.area_divide_ids, ',', '')) + 1
         end as area_count,
         (
-        select ifnull(sum(
+        select COALESCE(sum(``
         case
         when ad.device_ids is null or ad.device_ids = '' then 0
         else length(ad.device_ids) - length(replace(ad.device_ids, ',', '')) + 1

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