Github user tejasapatil commented on a diff in the pull request:

    https://github.com/apache/spark/pull/13775#discussion_r83753217
  
    --- Diff: 
sql/hive/src/main/java/org/apache/hadoop/hive/ql/io/orc/SparkVectorizedOrcRecordReader.java
 ---
    @@ -0,0 +1,189 @@
    +/*
    + * 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.hadoop.hive.ql.io.orc;
    +
    +import java.io.IOException;
    +import java.util.LinkedList;
    +import java.util.List;
    +
    +import org.apache.hadoop.conf.Configuration;
    +import org.apache.hadoop.hive.ql.exec.vector.ColumnVector;
    +import org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector;
    +import org.apache.hadoop.hive.ql.exec.vector.DecimalColumnVector;
    +import org.apache.hadoop.hive.ql.exec.vector.DoubleColumnVector;
    +import org.apache.hadoop.hive.ql.exec.vector.LongColumnVector;
    +import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch;
    +import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
    +import 
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorFactory;
    +import 
org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector;
    +import org.apache.hadoop.hive.serde2.objectinspector.StructField;
    +import org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector;
    +import org.apache.hadoop.hive.serde2.typeinfo.DecimalTypeInfo;
    +import org.apache.hadoop.hive.serde2.typeinfo.PrimitiveTypeInfo;
    +import org.apache.hadoop.io.NullWritable;
    +import org.apache.hadoop.mapred.FileSplit;
    +import org.apache.hadoop.mapred.RecordReader;
    +
    +/**
    + * A mapred.RecordReader that returns VectorizedRowBatch.
    + */
    +public class SparkVectorizedOrcRecordReader
    +      implements RecordReader<NullWritable, VectorizedRowBatch> {
    +    private final org.apache.hadoop.hive.ql.io.orc.RecordReader reader;
    +    private final long offset;
    +    private final long length;
    +    private float progress = 0.0f;
    +    private ObjectInspector objectInspector;
    +
    +    SparkVectorizedOrcRecordReader(Reader file, Configuration conf,
    --- End diff --
    
    nit: have each param on a separate line for readability. There are other 
places in this PR where the same comment will apply


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