xzj7019 commented on code in PR #35773:
URL: https://github.com/apache/doris/pull/35773#discussion_r1625710270
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/cost/CostModelV1.java:
##########
@@ -364,6 +364,13 @@ public Cost visitPhysicalHashJoin(
} else if (probeStats.getWidthInJoinCluster() <
buildStats.getWidthInJoinCluster()) {
leftRowCount += 1;
}
+ if (probeStats.getWidthInJoinCluster() ==
buildStats.getWidthInJoinCluster()
+ && probeStats.computeSize() < buildStats.computeSize()) {
+ // When the number of rows and the width on both sides of the
join are the same,
Review Comment:
LGTM
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