englefly commented on a change in pull request #8618:
URL: https://github.com/apache/incubator-doris/pull/8618#discussion_r836540483
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File path: fe/fe-core/src/main/java/org/apache/doris/planner/HashJoinNode.java
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@@ -165,6 +170,54 @@ public void setColocate(boolean colocate, String reason) {
colocateReason = reason;
}
+ // output slots + conjunct slots + other conjunct slots = hash output slots
Review comment:
What is the difference between "output slots" and "hash output slots"?
What is the usage of the concept "hash output slots"?
Could u illustrate the above questions by the example in comments (line 882)
* Query: select a.k1 from a, b where a.k1=b.k1
* output slots: a.k1
in my understanding, the conjunct is a.k1=b.k1, and a.k1/b.k1 is not in
output slots, but in hash output slots.
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