kou commented on code in PR #46031:
URL: https://github.com/apache/arrow/pull/46031#discussion_r2053406053


##########
cpp/src/arrow/record_batch_test.cc:
##########
@@ -1033,15 +1040,32 @@ Result<std::shared_ptr<Array>> BuildArray(
   }
   return builder.Finish();
 }
+struct StringBuilderVisitor {
+  template <typename DataType>
+  enable_if_t<has_string_view<DataType>::value, Status> Visit(
+      const DataType&, ArrayBuilder* raw_builder,
+      const std::vector<std::string>& values) {
+    using Builder = typename TypeTraits<DataType>::BuilderType;
+    Builder* builder = static_cast<Builder*>(raw_builder);
+    for (const auto& value : values) {
+      ARROW_RETURN_NOT_OK(builder->Append(value));
+    }

Review Comment:
   Oh, sorry. I forgot it...



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