[GitHub] [carbondata] kunal642 commented on a change in pull request #3932: [CARBONDATA-3994] Skip Order by for map task if it is a first sort column and use limit pushdown for array_contains filter

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kunal642 commented on a change in pull request #3932:
URL: https://github.com/apache/carbondata/pull/3932#discussion_r506085998



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File path: integration/spark/src/main/scala/org/apache/spark/sql/execution/CarbonTakeOrderedAndProjectExec.scala
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@@ -0,0 +1,125 @@
+/*
+ * 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
+
+import org.apache.spark.rdd.RDD
+import org.apache.spark.serializer.Serializer
+import org.apache.spark.sql.catalyst.InternalRow
+import org.apache.spark.sql.catalyst.expressions.{Attribute, NamedExpression, SortOrder, UnsafeProjection}
+import org.apache.spark.sql.catalyst.expressions.codegen.LazilyGeneratedOrdering
+import org.apache.spark.sql.catalyst.plans.physical.{Partitioning, SinglePartition}
+import org.apache.spark.sql.execution.exchange.ShuffleExchangeExec
+import org.apache.spark.util.Utils
+
+// To skip the order at map task
+case class CarbonTakeOrderedAndProjectExec(
+    limit: Int,
+    sortOrder: Seq[SortOrder],
+    projectList: Seq[NamedExpression],
+    child: SparkPlan,
+    skipMapOrder: Boolean = false,
+    readFromHead: Boolean = true) extends UnaryExecNode {

Review comment:
       CarbonTakeOrderedAndProjectExec should extend TakeOrderedAndProjectExec, and unmodified methods should not be overridden 




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