alamb commented on code in PR #5194:
URL: https://github.com/apache/arrow-datafusion/pull/5194#discussion_r1097767305


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datafusion/physical-expr/src/expressions/binary.rs:
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@@ -418,6 +419,23 @@ macro_rules! binary_primitive_array_op {
     }};
 }
 
+/// Invoke a compute kernel on a pair of arrays
+/// The binary_primitive_array_op macro only evaluates for primitive types
+/// like integers and floats.
+macro_rules! binary_primitive_array_op_dyn {
+    ($LEFT:expr, $RIGHT:expr, $OP:ident) => {{
+        match $LEFT.data_type() {
+            DataType::Decimal128(_,_) => {
+                Ok(paste::expr! {[<$OP _decimal>]}(&$LEFT, &$RIGHT)?)
+                // Ok(Arc::new($OP(&$LEFT, &$RIGHT).map_err(|err| 
DataFusionError::ArrowError(err))?))

Review Comment:
   is this meant to be left commented out?



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