englefly commented on code in PR #18865:
URL: https://github.com/apache/doris/pull/18865#discussion_r1173328480


##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/physical/PhysicalHashJoin.java:
##########
@@ -98,6 +95,31 @@ public PhysicalHashJoin(
                 groupExpression, logicalProperties, physicalProperties, 
statistics, leftChild, rightChild);
     }
 
+    /**
+     * Get all used slots from hashJoinConjuncts of join.
+     * Return pair of left used slots and right used slots.
+     */
+    public Pair<List<ExprId>, List<ExprId>> getHashConjunctsExprIds() {

Review Comment:
   LogicalJoin also has hashJoinConjuncts. why only PhysicalHashJoin 
getHashConjunctsExprIds?
   In my understanding, this change disables LogicalJoin to 
getHashConjunctsExprIds.



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