From 39b74c6fb4a50bed412bbebdd38440d384f47733 Mon Sep 17 00:00:00 2001
From: whycxzp <glperry@163.com>
Date: 星期日, 30 三月 2025 14:40:18 +0800
Subject: [PATCH] 完善温度告警
---
src/main/resources/mapper/CommonMapper.xml | 12 +++++++-----
1 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/src/main/resources/mapper/CommonMapper.xml b/src/main/resources/mapper/CommonMapper.xml
index 03e827e..ee5558e 100644
--- a/src/main/resources/mapper/CommonMapper.xml
+++ b/src/main/resources/mapper/CommonMapper.xml
@@ -164,11 +164,13 @@
<select id="getMaxValue" resultType="java.lang.Object">
select max(${field}) from ${schema}.${table}
</select>
- <select id="existTable" resultType="java.lang.String">
- select distinct table_name
- from INFORMATION_SCHEMA.TABLES
- where table_name = #{tableName}
- and TABLE_SCHEMA = #{dbName}
+ <select id="existTable" resultType="java.lang.Boolean">
+ SELECT EXISTS (
+ SELECT 1
+ FROM INFORMATION_SCHEMA.TABLES
+ WHERE table_name = #{tableName}
+ AND TABLE_SCHEMA = #{dbName}
+ ) AS table_exists
</select>
<select id="getTableListLike" resultType="java.lang.String">
select distinct table_name
--
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