[GitHub] [incubator-doris] zhangstar333 commented on a change in pull request #8614: [Vectorized] support string type cast to bitmap

[GitBox <gi...@apache.org>]

zhangstar333 commented on a change in pull request #8614:
URL: https://github.com/apache/incubator-doris/pull/8614#discussion_r841029836



##########
File path: be/src/vec/functions/function_cast.h
##########
@@ -803,6 +804,56 @@ struct ConvertThroughParsing {
     }
 };
 
+//convert string to bitmap or hll type
+template <typename FromDataType, typename ToDataType, typename Name>
+struct ConvertToComplex {
+    static_assert(std::is_same_v<FromDataType, DataTypeString>,
+                  "ConvertToComplex is only applicable for String or FixedString data types");
+
+    using ToFieldType = typename ToDataType::FieldType;
+    using ColVecTo = ColumnComplexType<ToFieldType>;
+
+    template <typename Additions = void*>

Review comment:
       done




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