alamb commented on code in PR #15327:
URL: https://github.com/apache/datafusion/pull/15327#discussion_r2005971323


##########
datafusion/physical-expr/src/expressions/binary.rs:
##########
@@ -793,8 +793,10 @@ impl BinaryExpr {
             BitwiseShiftRight => bitwise_shift_right_dyn(left, right),
             BitwiseShiftLeft => bitwise_shift_left_dyn(left, right),
             StringConcat => concat_elements(left, right),
-            AtArrow | ArrowAt => {
-                unreachable!("ArrowAt and AtArrow should be rewritten to 
function")
+            AtArrow | ArrowAt | Arrow | LongArrow | HashArrow | HashLongArrow 
| AtAt
+            | HashMinus | AtQuestion | Question | QuestionAnd | QuestionPipe
+            | IntegerDivide => {
+                unreachable!("These operators should be rewritten to 
functions")

Review Comment:
   I dont think this code is unreachable --  I got it to panic:
   
   ```shell
   DataFusion CLI v46.0.1
   > select 'foo' @> 'bar';
   
   thread 'main' panicked at 
datafusion/physical-expr/src/expressions/binary.rs:799:17:
   internal error: entered unreachable code: These operators should be 
rewritten to functions
   note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
   ```



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