xzj7019 commented on code in PR #27378:
URL: https://github.com/apache/doris/pull/27378#discussion_r1408674998
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fe/fe-core/src/main/java/org/apache/doris/nereids/hint/LeadingHint.java:
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@@ -367,6 +435,13 @@ public Plan generateLeadingJoinPlan() {
newStackTop.second.getOutput(),
logicalPlan.getOutput(), conditions);
JoinType joinType =
computeJoinType(getBitmap(newStackTop.second),
getBitmap(logicalPlan), conditions);
+ if (joinType == null) {
Review Comment:
better to refine this part of return type handing.
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