comphead commented on code in PR #12027:
URL: https://github.com/apache/datafusion/pull/12027#discussion_r1725372709
##########
datafusion/functions/src/string/common.rs:
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@@ -252,7 +254,69 @@ impl<'a> ColumnarValueRef<'a> {
}
}
+/// Abstracts iteration over different types of string arrays.
+///
+/// This trait helps write generic code for string functions that can work with
Review Comment:
```suggestion
/// The [`StringArrayType`] trait helps write generic code for string
functions that can work with
```
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