shangxinli commented on a change in pull request #775:
URL: https://github.com/apache/parquet-mr/pull/775#discussion_r411026823
##########
File path:
parquet-tools/src/main/java/org/apache/parquet/tools/command/MergeCommand.java
##########
@@ -18,27 +18,37 @@
*/
package org.apache.parquet.tools.command;
+import static org.apache.parquet.hadoop.ParquetWriter.DEFAULT_BLOCK_SIZE;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.UncheckedIOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
import org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.Option;
+import org.apache.commons.cli.Options;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
-import org.apache.parquet.hadoop.util.HadoopInputFile;
-import org.apache.parquet.hadoop.util.HiddenFileFilter;
+import org.apache.parquet.column.EncodingStats;
import org.apache.parquet.hadoop.ParquetFileWriter;
+import org.apache.parquet.hadoop.metadata.CompressionCodecName;
import org.apache.parquet.hadoop.metadata.FileMetaData;
+import org.apache.parquet.hadoop.metadata.ParquetMetadata;
+import org.apache.parquet.hadoop.util.HadoopInputFile;
+import org.apache.parquet.hadoop.util.HiddenFileFilter;
+import org.apache.parquet.io.InputFile;
import org.apache.parquet.tools.Main;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.util.ArrayList;
-import java.util.List;
-
public class MergeCommand extends ArgsOnlyCommand {
Review comment:
Add tests for it
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