| /* |
| * 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.exec; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import org.apache.drill.categories.HiveStorageTest; |
| import org.apache.drill.categories.SlowTest; |
| import org.apache.drill.exec.hive.HiveTestBase; |
| import org.apache.drill.exec.planner.physical.PlannerSettings; |
| import org.apache.drill.exec.rpc.user.QueryDataBatch; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Ignore; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| import java.util.List; |
| |
| @Category({SlowTest.class, HiveStorageTest.class}) |
| public class TestHivePartitionPruning extends HiveTestBase { |
| // enable decimal data type |
| @BeforeClass |
| public static void enableDecimalDataType() throws Exception { |
| test(String.format("alter session set `%s` = true", PlannerSettings.ENABLE_DECIMAL_DATA_TYPE_KEY)); |
| } |
| |
| //Currently we do not have a good way to test plans so using a crude string comparison |
| @Test |
| public void testSimplePartitionFilter() throws Exception { |
| final String query = "explain plan for select * from hive.`default`.partition_pruning_test where c = 1"; |
| final String plan = getPlanInString(query, OPTIQ_FORMAT); |
| |
| // Check and make sure that Filter is not present in the plan |
| assertFalse(plan.contains("Filter")); |
| } |
| |
| /* Partition pruning is not supported for disjuncts that do not meet pruning criteria. |
| * Will be enabled when we can do wild card comparison for partition pruning |
| */ |
| @Test |
| public void testDisjunctsPartitionFilter() throws Exception { |
| final String query = "explain plan for select * from hive.`default`.partition_pruning_test where (c = 1) or (d = 1)"; |
| final String plan = getPlanInString(query, OPTIQ_FORMAT); |
| |
| // Check and make sure that Filter is not present in the plan |
| assertFalse(plan.contains("Filter")); |
| } |
| |
| @Test |
| public void testConjunctsPartitionFilter() throws Exception { |
| final String query = "explain plan for select * from hive.`default`.partition_pruning_test where c = 1 and d = 1"; |
| final String plan = getPlanInString(query, OPTIQ_FORMAT); |
| |
| // Check and make sure that Filter is not present in the plan |
| assertFalse(plan.contains("Filter")); |
| } |
| |
| @Test |
| public void testComplexFilter() throws Exception { |
| final String query = "explain plan for select * from hive.`default`.partition_pruning_test where (c = 1 and d = 1) or (c = 2 and d = 3)"; |
| final String plan = getPlanInString(query, OPTIQ_FORMAT); |
| |
| // Check and make sure that Filter is not present in the plan |
| assertFalse(plan.contains("Filter")); |
| } |
| |
| @Test |
| public void testRangeFilter() throws Exception { |
| final String query = "explain plan for " + |
| "select * from hive.`default`.partition_pruning_test where " + |
| "c > 1 and d > 1"; |
| |
| final String plan = getPlanInString(query, OPTIQ_FORMAT); |
| |
| // Check and make sure that Filter is not present in the plan |
| assertFalse(plan.contains("Filter")); |
| } |
| |
| @Test |
| public void testRangeFilterWithDisjunct() throws Exception { |
| final String query = "explain plan for " + |
| "select * from hive.`default`.partition_pruning_test where " + |
| "(c > 1 and d > 1) or (c < 2 and d < 2)"; |
| |
| final String plan = getPlanInString(query, OPTIQ_FORMAT); |
| |
| // Check and make sure that Filter is not present in the plan |
| assertFalse(plan.contains("Filter")); |
| } |
| |
| /** |
| * Tests pruning on table that has partitions columns of supported data types. Also tests whether Hive pruning code |
| * is able to deserialize the partition values in string format to appropriate type holder. |
| */ |
| @Test |
| public void pruneDataTypeSupport() throws Exception { |
| final String query = "EXPLAIN PLAN FOR " + |
| "SELECT * FROM hive.readtest WHERE tinyint_part = 64"; |
| |
| final String plan = getPlanInString(query, OPTIQ_FORMAT); |
| |
| // Check and make sure that Filter is not present in the plan |
| assertFalse(plan.contains("Filter")); |
| } |
| |
| @Test // DRILL-3579 |
| public void selectFromPartitionedTableWithNullPartitions() throws Exception { |
| final String query = "SELECT count(*) nullCount FROM hive.partition_pruning_test " + |
| "WHERE c IS NULL OR d IS NULL OR e IS NULL"; |
| final String plan = getPlanInString("EXPLAIN PLAN FOR " + query, OPTIQ_FORMAT); |
| |
| // Check and make sure that Filter is not present in the plan |
| assertFalse(plan.contains("Filter")); |
| |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("nullCount") |
| .baselineValues(95L) |
| .go(); |
| } |
| |
| @Test // DRILL-5032 |
| public void testPartitionColumnsCaching() throws Exception { |
| final String query = "EXPLAIN PLAN FOR SELECT * FROM hive.partition_with_few_schemas"; |
| |
| List<QueryDataBatch> queryDataBatches = testSqlWithResults(query); |
| String resultString = getResultString(queryDataBatches, "|"); |
| |
| // different for both partitions column strings from physical plan |
| String columnString = "\"name\" : \"a\""; |
| String secondColumnString = "\"name\" : \"a1\""; |
| |
| int columnIndex = resultString.indexOf(columnString); |
| assertTrue(columnIndex >= 0); |
| columnIndex = resultString.indexOf(columnString, columnIndex + 1); |
| // checks that column added to physical plan only one time |
| assertEquals(-1, columnIndex); |
| |
| int secondColumnIndex = resultString.indexOf(secondColumnString); |
| assertTrue(secondColumnIndex >= 0); |
| secondColumnIndex = resultString.indexOf(secondColumnString, secondColumnIndex + 1); |
| // checks that column added to physical plan only one time |
| assertEquals(-1, secondColumnIndex); |
| } |
| |
| @Test // DRILL-6173 |
| @Ignore("DRILL-8400") |
| public void prunePartitionsBasedOnTransitivePredicates() throws Exception { |
| String query = String.format("SELECT * FROM hive.partition_pruning_test t1 " + |
| "JOIN hive.partition_with_few_schemas t2 ON t1.`d` = t2.`d` AND t1.`e` = t2.`e` " + |
| "WHERE t2.`e` IS NOT NULL AND t1.`d` = 1"); |
| |
| int actualRowCount = testSql(query); |
| int expectedRowCount = 450; |
| assertEquals("Expected and actual row count should match", expectedRowCount, actualRowCount); |
| |
| final String[] expectedPlan = |
| {"partition_with_few_schemas.*numPartitions=6", "partition_pruning_test.*numPartitions=6"}; |
| testPlanMatchingPatterns(query, expectedPlan); |
| } |
| |
| @AfterClass |
| public static void disableDecimalDataType() throws Exception { |
| test(String.format("alter session set `%s` = false", PlannerSettings.ENABLE_DECIMAL_DATA_TYPE_KEY)); |
| } |
| } |