edponce commented on a change in pull request #10855:
URL: https://github.com/apache/arrow/pull/10855#discussion_r681279659
##########
File path: cpp/src/arrow/compute/kernels/scalar_string.cc
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@@ -443,6 +488,17 @@ struct AsciiLower {
}
};
+void TransformAsciiSwapCase(const uint8_t* input, int64_t length, uint8_t*
output) {
+ std::transform(input, input + length, output, ascii_swapcase);
+}
+
+template <typename Type>
+struct AsciiSwapCase {
+ static Status Exec(KernelContext* ctx, const ExecBatch& batch, Datum* out) {
+ return StringDataTransform<Type>(ctx, batch, TransformAsciiSwapCase, out);
+ }
+};
+
Review comment:
Add `Utf8SwapCase`
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