xzj7019 commented on code in PR #27259:
URL: https://github.com/apache/doris/pull/27259#discussion_r1398634384
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/cost/CostModelV1.java:
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@@ -299,12 +303,41 @@ public Cost visitPhysicalHashJoin(
0
);
}
- return CostV1.of(context.getSessionVariable(), leftRowCount +
rightRowCount + outputRowCount,
+ return CostV1.of(context.getSessionVariable(),
+ (leftRowCount + rightRowCount + outputRowCount)
Review Comment:
please add comments to explain why the factor is necessary and why the
factor is on the original total cost, not on the cost respectively
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