sduzh commented on issue #5142:
URL: 
https://github.com/apache/incubator-doris/issues/5142#issuecomment-751181703


   > 目前的`get_type_info()`接口只支持一维数组,无法支持多维嵌套结构
   
   为了能够支持嵌套数组,以及struct/map等复杂类型,需要将当前的`get_type_info`内部实现修改为动态创建,并通过智能指针来管理生命周期
   ```
   std::unique_ptr<TypeInfo> get_type_info(const Field& field);
   std::unique_ptr<TypeInfo> get_type_info(const TabletColumn& column);
   ```


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