Rich-T-kid commented on code in PR #9891:
URL: https://github.com/apache/arrow-rs/pull/9891#discussion_r3189169666
##########
arrow-array/src/array/run_array.rs:
##########
@@ -30,6 +30,25 @@ use crate::{
types::{Int16Type, Int32Type, Int64Type, RunEndIndexType},
};
+/// Recursively applies a function to the values of a RunEndEncoded array,
preserving the run structure.
+///
+/// # Example
+///
+/// ```ignore
+/// let result = ree_recurse!(array, Int32Type, my_function)?;
+/// ```
+///
+/// This macro is useful for implementing functions that should work on the
logical values
+/// of a REE array while preserving the run-end encoding structure.
+#[macro_export]
+macro_rules! ree_map {
Review Comment:
I think thats a change thats worth its own PR
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