An example ORC writer using a dynamic schema in Hive 2.0

OrcWriter2.java

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.LongColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch;
import org.apache.orc.CompressionKind;
import org.apache.orc.TypeDescription;
import org.apache.orc.OrcFile;
import org.apache.orc.Writer;

import java.io.IOException;

public class OrcWriter2 {

  public static void main(String[] args) throws IOException,
                                                InterruptedException {

    String path = "/tmp/file2.orc";
    TypeDescription schema = TypeDescription.createStruct()
        .addField("field1", TypeDescription.createInt())
        .addField("field2", TypeDescription.createString())
        .addField("field3", TypeDescription.createString());
    Configuration conf = new Configuration();
    Writer writer = OrcFile.createWriter(new Path(path),
        OrcFile.writerOptions(conf)
          .setSchema(schema)
          .stripeSize(100000)
          .bufferSize(10000)
          .compress(CompressionKind.ZLIB)
          .version(OrcFile.Version.V_0_12));
    VectorizedRowBatch batch = schema.createRowBatch();
    batch.size = 1;
    ((LongColumnVector) batch.cols[0]).vector[0] = 1;
    ((BytesColumnVector) batch.cols[1]).setVal(0, "hello".getBytes());
    ((BytesColumnVector) batch.cols[2]).setVal(0, "orcFile".getBytes());
    writer.addRowBatch(batch);
    writer.close();
  }
}

why i write this into hive's hdfs filepath,but select result is null

use hive2.3.3,core-orc1.3.3