Jefffrey commented on code in PR #21883:
URL: https://github.com/apache/datafusion/pull/21883#discussion_r3158920253
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datafusion/physical-expr/src/expressions/binary/kernels.rs:
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@@ -204,6 +204,95 @@ pub fn concat_elements_utf8view(
Ok(result.finish())
}
+/// Concatenates two `GenericBinaryArray`s element-wise.
+/// If either element is `Null`, the result element is also `Null`.
+///
+/// # Errors
+/// - Returns an error if the input arrays have different lengths.
+/// - Panics if any concatenated string exceeds `T::Offset::MAX` in length.
+pub fn concat_elements_binary_array<T: OffsetSizeTrait>(
Review Comment:
No particular reason I think, just haven't added support for it
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