924060929 commented on code in PR #12147:
URL: https://github.com/apache/doris/pull/12147#discussion_r957310076
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/memo/GroupExpression.java:
##########
@@ -181,13 +208,14 @@ public boolean equals(Object o) {
return false;
}
GroupExpression that = (GroupExpression) o;
- // if the plan is LogicalRelation or PhysicalRelation, this == that
should be true,
+ // if the plan is UnboundRelation or LogicalRelation or
PhysicalRelation, this == that should be true,
// when if one relation appear in plan more than once,
// we cannot distinguish them throw equals function, since equals
function cannot use output info.
- if (plan instanceof LogicalRelation || plan instanceof
PhysicalRelation) {
+ if (plan instanceof UnboundRelation || plan instanceof LogicalRelation
|| plan instanceof PhysicalRelation) {
return false;
}
- return children.equals(that.children) && plan.equals(that.plan);
+ return children.equals(that.children) && plan.equals(that.plan)
+ &&
plan.getLogicalProperties().equals(that.plan.getLogicalProperties());
Review Comment:
the XxxRelation will return false before compare the logical properties, you
can see the code a few lines up
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