Github user ueshin commented on a diff in the pull request: https://github.com/apache/spark/pull/18732#discussion_r141788272 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/python/FlatMapGroupsInPandasExec.scala --- @@ -0,0 +1,95 @@ +/* + * 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.python + +import scala.collection.JavaConverters._ + +import org.apache.spark.TaskContext +import org.apache.spark.api.python.{ChainedPythonFunctions, PythonEvalType} +import org.apache.spark.rdd.RDD +import org.apache.spark.sql.catalyst.InternalRow +import org.apache.spark.sql.catalyst.expressions.{Ascending, Attribute, AttributeSet, Expression, NamedExpression, SortOrder, UnsafeProjection} +import org.apache.spark.sql.catalyst.plans.physical.{ClusteredDistribution, Distribution, Partitioning} +import org.apache.spark.sql.execution.{GroupedIterator, SparkPlan, UnaryExecNode} + +case class FlatMapGroupsInPandasExec( + grouping: Seq[Expression], + func: Expression, + override val output: Seq[Attribute], + override val child: SparkPlan --- End diff -- We don't need `override val` for `output` and `child`.
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