[GitHub] [spark] fred-db commented on a diff in pull request #38497: [SPARK-40999] Hint propagation to subqueries

[GitBox <gi...@apache.org>]

fred-db commented on code in PR #38497:
URL: https://github.com/apache/spark/pull/38497#discussion_r1017750256


##########
sql/core/src/test/scala/org/apache/spark/sql/SubqueryHintPropagationSuite.scala:
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@@ -0,0 +1,183 @@
+/*
+ * 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.
+ */
+
+package org.apache.spark.sql
+
+import org.apache.spark.sql.catalyst.plans.{InnerLike, LeftSemi}
+import org.apache.spark.sql.catalyst.plans.logical.{BROADCAST, HintInfo, Join, JoinHint, LogicalPlan}
+import org.apache.spark.sql.test.SharedSparkSession
+
+class SubqueryHintPropagationSuite extends QueryTest with SharedSparkSession {
+
+  setupTestData()
+
+  private val expectedHint =
+    Some(HintInfo(strategy = Some(BROADCAST)))
+  private val hints = Seq("BROADCAST")

Review Comment:
   I added another join strategy to test the behavior with multiple hints, but I think testing with all hint strategies is overkill as the code does not depend on the specific join strategy. 



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