<?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.pz.system.mapper.CityMapper">

    <select id="selectAppCity" resultType="com.pz.system.domain.vo.CityVo">
        SELECT * FROM city GROUP BY sy
    </select>
</mapper>