| /* |
| * 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.drill; |
| |
| import org.apache.drill.categories.PlannerTest; |
| import org.apache.drill.exec.store.parquet.metadata.MetadataPathUtils; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| import java.nio.file.Paths; |
| |
| @Category({PlannerTest.class}) |
| public class TestDirScanToValuesConversion extends PlanTestBase { |
| |
| private static final String TABLE_WITH_METADATA = "parquetTable1"; |
| |
| @BeforeClass |
| public static void setUp() { |
| dirTestWatcher.copyResourceToRoot(Paths.get("multilevel")); |
| dirTestWatcher.copyResourceToRoot(Paths.get("multilevel/parquet"), Paths.get(TABLE_WITH_METADATA)); |
| } |
| |
| @Test |
| public void testDirScanToValuesConversion() throws Exception { |
| String[] tableNames = {"multilevel/parquet", "multilevel/json", "multilevel/csv"}; |
| String[] queries = { |
| "select distinct dir0, dir1 from dfs.`%s`", |
| "select dir0, dir1 from dfs.`%s` group by 1, 2" |
| }; |
| for (String tableName : tableNames) { |
| for (String query : queries) { |
| testPlanMatchingPatterns(String.format(query, tableName), new String[]{"Values\\(tuples="}, new String[]{"Scan\\(table="}); |
| } |
| } |
| } |
| |
| @Test |
| public void testDirScanToValuesConversionWithMetadataCache() throws Exception { |
| test("refresh table metadata dfs.`%s`", TABLE_WITH_METADATA); |
| assertTrue( |
| String.format("There is no metadata cache file for the %s table", TABLE_WITH_METADATA), |
| MetadataPathUtils.checkForMetadataFile( |
| dirTestWatcher.getRootDir().getCanonicalPath(), |
| TABLE_WITH_METADATA |
| ) |
| ); |
| String query = String.format("select distinct dir0, dir1 from dfs.`%s`", TABLE_WITH_METADATA); |
| PlanTestBase.testPlanMatchingPatterns(query, new String[]{"Values\\(tuples="}, null); |
| } |
| |
| @Test |
| public void testDirScanToValuesConversionIsNotApplied() throws Exception { |
| String[] tableNames = {"multilevel/parquet", "multilevel/json", "multilevel/csv"}; |
| String[] queries = { |
| "select dir0, dir1 from dfs.`%s`", // no aggregation |
| "select dir0, dir1, o_custkey from dfs.`%s` group by 1, 2, 3" // not only partition columns present |
| }; |
| for (String tableName : tableNames) { |
| for (String query : queries) { |
| testPlanMatchingPatterns(String.format(query, tableName), new String[]{"Scan\\(table="}, new String[]{"Values\\(tuples="}); |
| } |
| } |
| } |
| } |