github-actions[bot] commented on code in PR #63519:
URL: https://github.com/apache/doris/pull/63519#discussion_r3285797303


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regression-test/suites/query_p0/expression/topn_to_max.groovy:
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@@ -1,47 +0,0 @@
-// Licensed to the Apache Software Foundation (ASF) under one
-// or more contributor license agreements.  See the NOTICE file
-// distributed with this work for additional information
-// regarding copyright ownership.  The ASF licenses this file
-// to you under the Apache License, Version 2.0 (the
-// "License"); you may not use this file except in compliance
-// with the License.  You may obtain a copy of the License at
-//
-//   http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing,
-// software distributed under the License is distributed on an
-// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// KIND, either express or implied.  See the License for the
-// specific language governing permissions and limitations
-// under the License.
-
-suite("test_topn_to_max") {
-
-    sql 'drop table if exists test_topn_to_max;'
-
-    sql '''create table test_topn_to_max (k1 int, k2 string) distributed by 
hash(k1) buckets 3 properties('replication_num' = '1');'''
-    sql '''insert into test_topn_to_max values (1, "1"),  (2, "2");'''
-
-
-    order_qt_sql '''

Review Comment:
   This PR fixes a result-correctness bug, but it deletes the only targeted 
regression case instead of replacing it with one that validates the new 
behavior. Please keep or add a regression test where `topn(k2, 1)` would differ 
from `max(k2)` (for example duplicate a non-maximum value so TOPN returns that 
value/count while MAX returns another value), and assert the rewritten 
plan/result does not use `max`. Without this, the unsafe rewrite can be 
reintroduced later without any targeted test failure.



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