Jefffrey commented on code in PR #18730:
URL: https://github.com/apache/datafusion/pull/18730#discussion_r2529737248


##########
datafusion/physical-plan/src/joins/hash_join/exec.rs:
##########
@@ -912,16 +913,19 @@ impl ExecutionPlan for HashJoinExec {
         let left_partitions = 
self.left.output_partitioning().partition_count();
         let right_partitions = 
self.right.output_partitioning().partition_count();
 
-        if self.mode == PartitionMode::Partitioned && left_partitions != 
right_partitions
-        {
-            return internal_err!(
+        if self.mode == PartitionMode::Partitioned {
+            assert_eq_or_internal_err!(

Review Comment:
   If we're gonna do this refactor we should refactor this entire `if` 
statement away, instead of only moving half the condition inside it



##########
datafusion/physical-plan/src/test.rs:
##########
@@ -317,12 +318,13 @@ impl TestMemoryExec {
                     .map(|field| field.name() != col.name())
                     .unwrap_or(true)
             });
-        if let Some(col) = ambiguous_column {
-            return internal_err!(
-                "Column {:?} is not found in the original schema of the 
TestMemoryExec",
-                col
-            );
-        }
+        assert_or_internal_err!(
+            ambiguous_column.is_none(),
+            "Column {:?} is not found in the original schema of the 
TestMemoryExec",
+            ambiguous_column
+                .as_ref()
+                .expect("checked by assert_or_internal_err!")

Review Comment:
   Just unwrap it, expect here adds unnecessary noise



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