版权声明: https://blog.csdn.net/u011361138/article/details/82260111
通过使用with_entities()方法来获取要在结果中返回的列
# 查询制定的id列
result = RiskDataModel.query.with_entities(RiskDataModel.id) # 返回BaseQuery
# 返回指定的两列
result = RiskDataModel.query.with_entities(RiskDataModel.id, RiskDataModel.name)
# 并且去重
result = RiskDataModel.query.with_entities(RiskDataModel.store_st_id).distinct().all()