tustvold commented on code in PR #3798:
URL: https://github.com/apache/arrow-rs/pull/3798#discussion_r1124918954
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arrow-string/src/concat_elements.rs:
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@@ -18,29 +18,18 @@
use std::sync::Arc;
use arrow_array::builder::BufferBuilder;
+use arrow_array::types::ByteArrayType;
use arrow_array::*;
+use arrow_buffer::ArrowNativeType;
use arrow_data::bit_mask::combine_option_bitmap;
use arrow_data::ArrayDataBuilder;
use arrow_schema::{ArrowError, DataType};
-/// Returns the elementwise concatenation of a [`StringArray`].
-///
-/// An index of the resulting [`StringArray`] is null if any of
-/// `StringArray` are null at that location.
-///
-/// ```text
-/// e.g:
-///
-/// ["Hello"] + ["World"] = ["HelloWorld"]
-///
-/// ["a", "b"] + [None, "c"] = [None, "bc"]
-/// ```
-///
-/// An error will be returned if `left` and `right` have different lengths
-pub fn concat_elements_utf8<Offset: OffsetSizeTrait>(
- left: &GenericStringArray<Offset>,
- right: &GenericStringArray<Offset>,
-) -> Result<GenericStringArray<Offset>, ArrowError> {
+/// Returns the elementwise concatenation of a [`GenericByteArray`].
+pub fn concat_elements_bytes<T: ByteArrayType>(
Review Comment:
Doesn't need to be, but might allow generic code to use it, without needing
special cases perhaps??
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