用mybatisplus query wrapper帮我实现该sql语句：SELECT DISTINCT (`ota_os`), `act_push_date`, `car_model_code` FROM `dim_ota_os_bss_related_hf` WHERE `car_model_code` = 'DC1E' and `act_push_date` IS NOT NULL AND `car_model_code` is NOT null ORDER BY act_push_date ASC;

使用MyBatis Plus QueryWrapper，您可以像这样实现您的SQL查询：

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;

// 创建QueryWrapper对象
QueryWrapper<DimOtaOsBssRelatedHf> queryWrapper = new QueryWrapper<>();
queryWrapper.select("DISTINCT ota_os", "act_push_date", "car_model_code")
    .eq("car_model_code", "DC1E")
    .isNotNull("act_push_date")
    .isNotNull("car_model_code")
    .orderByAsc("act_push_date");

// 执行查询
List<DimOtaOsBssRelatedHf> result = dimOtaOsBssRelatedHfMapper.selectList(queryWrapper);

请确保根据您的业务情况适当替换`DimOtaOsBssRelatedHf`和`dimOtaOsBssRelatedHfMapper`，并在您的实体类中添加相应的注解和字段。