WinkerDu commented on code in PR #2510:
URL: https://github.com/apache/arrow-datafusion/pull/2510#discussion_r878355149


##########
datafusion/physical-expr/src/expressions/binary.rs:
##########
@@ -1255,14 +1235,25 @@ impl BinaryExpr {
         scalar: &ScalarValue,
         array: &ArrayRef,
     ) -> Result<Option<Result<ArrayRef>>> {
+        let bool_type = &DataType::Boolean;
         let scalar_result = match &self.op {
-            Operator::Lt => binary_array_op_scalar!(array, scalar.clone(), gt),
-            Operator::LtEq => binary_array_op_scalar!(array, scalar.clone(), 
gt_eq),
-            Operator::Gt => binary_array_op_scalar!(array, scalar.clone(), lt),
-            Operator::GtEq => binary_array_op_scalar!(array, scalar.clone(), 
lt_eq),
-            Operator::Eq => binary_array_op_scalar!(array, scalar.clone(), eq),
+            Operator::Lt => {
+                binary_array_op_dyn_scalar!(array, scalar.clone(), gt, 
bool_type)

Review Comment:
   Sorry for late response, love this fix ❤️ 



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