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https://issues.apache.org/jira/browse/PARQUET-1212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16480477#comment-16480477
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ASF GitHub Bot commented on PARQUET-1212:
-----------------------------------------
gszadovszky commented on a change in pull request #479: PARQUET-1212: Column
indexes: Show indexes in tools
URL: https://github.com/apache/parquet-mr/pull/479#discussion_r189231231
##########
File path:
parquet-cli/src/main/java/org/apache/parquet/cli/commands/ShowColumnIndexCommand.java
##########
@@ -0,0 +1,165 @@
+/*
+ * 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.parquet.cli.commands;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.Path;
+import org.apache.parquet.cli.BaseCommand;
+import org.apache.parquet.column.columnindex.ColumnIndex;
+import org.apache.parquet.column.columnindex.OffsetIndex;
+import org.apache.parquet.hadoop.ParquetFileReader;
+import org.apache.parquet.hadoop.metadata.BlockMetaData;
+import org.apache.parquet.hadoop.metadata.ColumnChunkMetaData;
+import org.apache.parquet.hadoop.metadata.ParquetMetadata;
+import org.apache.parquet.hadoop.util.HadoopInputFile;
+import org.apache.parquet.io.InputFile;
+import org.slf4j.Logger;
+
+import com.beust.jcommander.Parameter;
+import com.beust.jcommander.Parameters;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Lists;
+
+/**
+ * parquet-cli command to print column and offset indexes.
+ */
+@Parameters(commandDescription = "Prints the column and offset indexes of a
Parquet file")
+public class ShowColumnIndexCommand extends BaseCommand {
+ public ShowColumnIndexCommand(Logger console) {
+ super(console);
+ }
+
+ @Parameter(description = "<parquet path>")
+ List<String> files;
+
+ @Parameter(names = { "-c", "--column" }, description = "Shows the
column/offset indexes for the given column only")
+ List<String> ColumnPaths;
+
+ @Parameter(names = { "-b",
+ "--block" }, description = "Shows the column/offset indexes for the
given block (row-group) only; "
+ + "blocks are referenced by their indexes from 0")
+ List<String> blockIndexes;
+
+ @Parameter(names = { "-i", "--column-index" }, description = "Shows the
column indexes; "
Review comment:
`--column -c` is used in other commands. I think, it is better to keep this
option as is to be common between the different commands.
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> Column indexes: Show indexes in tools
> -------------------------------------
>
> Key: PARQUET-1212
> URL: https://issues.apache.org/jira/browse/PARQUET-1212
> Project: Parquet
> Issue Type: Sub-task
> Reporter: Gabor Szadovszky
> Assignee: Gabor Szadovszky
> Priority: Major
>
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