924060929 commented on code in PR #13879:
URL: https://github.com/apache/doris/pull/13879#discussion_r1030521401
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fe/fe-core/src/main/java/org/apache/doris/nereids/memo/Memo.java:
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@@ -510,6 +510,8 @@ private void eliminateFromGroupAndMoveToTargetGroup(Group
fromGroup, Group targe
"TargetGroup should be ancestors of fromGroup, but
fromGroup is root. Maybe a bug");
}
+ moveParentExpressionsReference(fromGroup, targetGroup);
Review Comment:
In the context, `fromGroup` is the group of `LogicalRelation`, and the
`targetGroup` is the group of `LogicalRowPolicy`,
`eliminateFromGroupAndMoveToTargetGroup` will move the
logicalExpression(LogicalRowPolicy) to the targetGroup, and the origin
logicalExpression in the targetGroup will be recycle until the
`LogicalRelation`(include `LogicalRowPolicy` and some parent of
`LogicalRelation`).
So I don't think we should `moveParentExpressionsReference(fromGroup,
targetGroup)`
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