| /* |
| * 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.iceberg; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.iceberg.hadoop.HadoopTables; |
| import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap; |
| import org.apache.iceberg.types.Types; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| |
| import static org.apache.iceberg.types.Types.NestedField.optional; |
| import static org.apache.iceberg.types.Types.NestedField.required; |
| |
| public class TestScanDataFileColumns { |
| private static final Schema SCHEMA = new Schema( |
| required(1, "id", Types.LongType.get()), |
| optional(2, "data", Types.StringType.get())); |
| |
| private static final Configuration CONF = new Configuration(); |
| private static final Tables TABLES = new HadoopTables(CONF); |
| |
| @Rule |
| public final TemporaryFolder temp = new TemporaryFolder(); |
| |
| private String tableLocation = null; |
| private Table table = null; |
| |
| @Before |
| public void createTables() throws IOException { |
| File location = temp.newFolder("shared"); |
| Assert.assertTrue(location.delete()); |
| this.tableLocation = location.toString(); |
| this.table = TABLES.create( |
| SCHEMA, PartitionSpec.unpartitioned(), |
| ImmutableMap.of(TableProperties.DEFAULT_FILE_FORMAT, FileFormat.PARQUET.name()), |
| tableLocation); |
| |
| // commit the test data |
| table.newAppend() |
| .appendFile(DataFiles.builder(PartitionSpec.unpartitioned()) |
| .withPath("file1.parquet") |
| .withFileSizeInBytes(100) |
| .withMetrics(new Metrics(3L, |
| ImmutableMap.of(1, 50L), // column size |
| ImmutableMap.of(1, 3L), // value count |
| ImmutableMap.of(1, 0L), // null count |
| ImmutableMap.of(1, longToBuffer(0L)), // lower bounds |
| ImmutableMap.of(1, longToBuffer(2L)))) // upper bounds) |
| .build()) |
| .appendFile(DataFiles.builder(PartitionSpec.unpartitioned()) |
| .withPath("file2.parquet") |
| .withFileSizeInBytes(100) |
| .withMetrics(new Metrics(3L, |
| ImmutableMap.of(1, 60L), // column size |
| ImmutableMap.of(1, 3L), // value count |
| ImmutableMap.of(1, 0L), // null count |
| ImmutableMap.of(1, longToBuffer(10L)), // lower bounds |
| ImmutableMap.of(1, longToBuffer(12L)))) // upper bounds) |
| .build()) |
| .appendFile(DataFiles.builder(PartitionSpec.unpartitioned()) |
| .withPath("file3.parquet") |
| .withFileSizeInBytes(100) |
| .withMetrics(new Metrics(3L, |
| ImmutableMap.of(1, 70L), // column size |
| ImmutableMap.of(1, 3L), // value count |
| ImmutableMap.of(1, 0L), // null count |
| ImmutableMap.of(1, longToBuffer(20L)), // lower bounds |
| ImmutableMap.of(1, longToBuffer(22L)))) // upper bounds) |
| .build()) |
| .commit(); |
| } |
| |
| @Test |
| public void testColumnStatsIgnored() { |
| // stats columns should be suppressed by default |
| for (FileScanTask fileTask : table.newScan().planFiles()) { |
| Assert.assertNull(fileTask.file().valueCounts()); |
| Assert.assertNull(fileTask.file().nullValueCounts()); |
| Assert.assertNull(fileTask.file().lowerBounds()); |
| Assert.assertNull(fileTask.file().upperBounds()); |
| } |
| } |
| |
| @Test |
| public void testColumnStatsLoading() { |
| // stats columns should be suppressed by default |
| for (FileScanTask fileTask : table.newScan().includeColumnStats().planFiles()) { |
| Assert.assertNotNull(fileTask.file().valueCounts()); |
| Assert.assertNotNull(fileTask.file().nullValueCounts()); |
| Assert.assertNotNull(fileTask.file().lowerBounds()); |
| Assert.assertNotNull(fileTask.file().upperBounds()); |
| Assert.assertNotNull(fileTask.file().columnSizes()); |
| } |
| } |
| |
| private static ByteBuffer longToBuffer(long value) { |
| return ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN).putLong(0, value); |
| } |
| } |