From 79e43f36768927ddf4d5fe2cf4ac16ce4099abf3 Mon Sep 17 00:00:00 2001
From: zss <zss@example.com>
Date: 星期三, 18 三月 2026 09:08:14 +0800
Subject: [PATCH] 能耗统计优化
---
src/main/resources/mapper/energy/EnergyConsumptionDetailMapper.xml | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/main/resources/mapper/energy/EnergyConsumptionDetailMapper.xml b/src/main/resources/mapper/energy/EnergyConsumptionDetailMapper.xml
index 32f2f40..4307123 100644
--- a/src/main/resources/mapper/energy/EnergyConsumptionDetailMapper.xml
+++ b/src/main/resources/mapper/energy/EnergyConsumptionDetailMapper.xml
@@ -41,8 +41,8 @@
</where>
</select>
<select id="calculateEnergy" resultType="java.util.Map">
- select SUM(ecd.dosage) totalEnergyConsumption,
- SUM(ecd.dosage * e.unit_price) totalEnergyCost
+ select SUM(COALESCE(ecd.dosage,0)) totalEnergyConsumption,
+ SUM(COALESCE(ecd.dosage,0) * COALESCE(e.unit_price,0)) totalEnergyCost
from energy_consumption_detail ecd
left join energy e on ecd.energy_id = e.id
where ecd.meter_reading_date between #{c.startDate} and #{c.endDate}
--
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