gunshi-project-ss/src/main/resources/mapper/StWaterRRealMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.gunshi.project.hsz.mapper.StWaterRRealMapper">

    <select id="listRelated" resultType="com.gunshi.project.hsz.model.StWaterRReal">
        SELECT
        stb.stcd,
        stb.sttp,
        stb.stnm,
        t.tm,
        t.q,
        t.v
        FROM public.st_stbprp_b stb
        JOIN public.st_water_r_real t ON t.stcd = stb.stcd
        JOIN (
        SELECT stcd, MAX(tm) as max_tm
        FROM public.st_water_r_real
        GROUP BY stcd
        ) latest ON t.stcd = latest.stcd AND t.tm = latest.max_tm
        <where>
            stb.sttp in ('QQ', 'PQ')
            and stb.stcd in ('1112','1113','1114') -- 站点编码，这里到时候得改
        </where>

    </select>
</mapper>