ulysses-you commented on a change in pull request #33651: URL: https://github.com/apache/spark/pull/33651#discussion_r683518146
########## File path: sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/AQEEliminateLimits.scala ########## @@ -0,0 +1,33 @@ +/* + * 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.execution.adaptive + +import org.apache.spark.sql.catalyst.optimizer.EliminateLimitsBase +import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan + +/** + * This rule runs in the AQE optimizer: + * [[LogicalQueryStage]] override the maxRows, so we can use the maxRows of logic plan to decide + * if we can eliminate limits. And we check if [[LogicalQueryStage]] is materialized at stats, + * if it is not materialized the maxRows is none. + */ +object AQEEliminateLimits extends EliminateLimitsBase { Review comment: They are same. Just consider we don't need transformDownWithPruning in AQE Optimizer since it's batch only run once. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
