morrySnow commented on code in PR #28743:
URL: https://github.com/apache/doris/pull/28743#discussion_r1432642747
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fe/fe-core/src/main/java/org/apache/doris/nereids/jobs/executor/Rewriter.java:
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@@ -218,6 +218,7 @@ public class Rewriter extends AbstractBatchJobExecutor {
// but top-down traverse can not cover this case in one
iteration, so bottom-up is more
// efficient because it can find the new plans and apply
transform wherever it is
bottomUp(RuleSet.PUSH_DOWN_FILTERS),
+ topDown(new ExpressionOptimization()),
Review Comment:
i think this is a interim solution, we need add some comment to explain why
need it here. so we could do right thing when we refactor the order of rules
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