From f22a631422f3045a06aad627e6e83c802be2760d Mon Sep 17 00:00:00 2001
From: 于紫祥_1901 <email@yuzixiang_1910>
Date: Tue, 01 Dec 2020 11:07:29 +0800
Subject: [PATCH] 站点平均值数据导出
---
src/main/resources/mapper/DemoMapper.xml | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/src/main/resources/mapper/DemoMapper.xml b/src/main/resources/mapper/DemoMapper.xml
index 8dba101..5d37761 100644
--- a/src/main/resources/mapper/DemoMapper.xml
+++ b/src/main/resources/mapper/DemoMapper.xml
@@ -19,4 +19,18 @@
LIMIT #{size}
</if>
</select>
+ <select id="selectByTimeZones" resultType="map">
+ select * from hangzhou_aqi where time in (
+ SELECT max(time) from (
+ select time,cast(aqi_json->"$.AQI" as SIGNED INTEGER) as aqi from hangzhou_aqi
+ ) hz where EXISTS ( select * from (
+ select max(cast(aqi_json->"$.AQI" as SIGNED INTEGER)) as max_aqi,
+ DATE_FORMAT(time,'%Y-%m-%d') as day_time
+ from hangzhou_aqi
+ where time >= #{startTime} and time <![CDATA[<=]]> #{endTime}
+ GROUP BY day_time
+ ) as max_result where day_time = DATE_FORMAT(hz.time,'%Y-%m-%d') and max_aqi = hz.aqi
+ ) GROUP BY DATE_FORMAT(time,'%Y-%m-%d') ORDER BY time ASC
+ )
+ </select>
</mapper>
\ No newline at end of file
--
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