[GitHub] [hudi] alexeykudinkin commented on a diff in pull request #3391: [HUDI-83] Fix Timestamp/Date type read by Hive3

["alexeykudinkin (via GitHub)" <gi...@apache.org>]

alexeykudinkin commented on code in PR #3391:
URL: https://github.com/apache/hudi/pull/3391#discussion_r1083232472


##########
hudi-hadoop-mr/src/main/java/org/apache/hudi/hadoop/avro/HoodieAvroParquetReader.java:
##########
@@ -0,0 +1,104 @@
+/*
+ * 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.hudi.hadoop.avro;
+
+import org.apache.avro.Schema;
+import org.apache.avro.generic.GenericData;
+import org.apache.avro.generic.GenericRecord;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.io.ArrayWritable;
+import org.apache.hadoop.mapreduce.InputSplit;
+import org.apache.hadoop.mapreduce.RecordReader;
+import org.apache.hadoop.mapreduce.TaskAttemptContext;
+import org.apache.hudi.hadoop.HoodieColumnProjectionUtils;
+import org.apache.hudi.hadoop.utils.HoodieRealtimeRecordReaderUtils;
+import org.apache.parquet.avro.AvroReadSupport;
+import org.apache.parquet.avro.AvroSchemaConverter;
+import org.apache.parquet.format.converter.ParquetMetadataConverter;
+import org.apache.parquet.hadoop.ParquetFileReader;
+import org.apache.parquet.hadoop.ParquetInputSplit;
+import org.apache.parquet.hadoop.ParquetRecordReader;
+import org.apache.parquet.hadoop.metadata.ParquetMetadata;
+import org.apache.parquet.schema.MessageType;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import static org.apache.parquet.hadoop.ParquetInputFormat.getFilter;
+
+public class HoodieAvroParquetReader extends RecordReader<Void, ArrayWritable> {

Review Comment:
   @cdmikechen can you please help me understand why we need custom ParquetReader?



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