| /* |
| * 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 static org.junit.Assert.assertEquals; |
| |
| import org.apache.drill.categories.OperatorTest; |
| import org.apache.drill.test.BaseTestQuery; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category(OperatorTest.class) |
| public class TestAggNullable extends BaseTestQuery { |
| |
| private static void enableAggr(boolean ha, boolean sa) throws Exception { |
| |
| test("alter session set `planner.enable_hashagg` = %s", ha); |
| test("alter session set `planner.enable_streamagg` = %s", sa); |
| test("alter session set `planner.slice_target` = 1"); |
| } |
| |
| @Test // HashAgg on nullable columns |
| public void testHashAggNullableColumns() throws Exception { |
| String query1 = "select t2.b2 from cp.`jsoninput/nullable2.json` t2 group by t2.b2"; |
| String query2 = "select t2.a2, t2.b2 from cp.`jsoninput/nullable2.json` t2 group by t2.a2, t2.b2"; |
| |
| int actualRecordCount; |
| int expectedRecordCount = 2; |
| |
| enableAggr(true, false); |
| actualRecordCount = testSql(query1); |
| assertEquals(String.format("Received unexpected number of rows in output: expected=%d, received=%s", |
| expectedRecordCount, actualRecordCount), expectedRecordCount, actualRecordCount); |
| |
| expectedRecordCount = 4; |
| actualRecordCount = testSql(query2); |
| assertEquals(String.format("Received unexpected number of rows in output: expected=%d, received=%s", |
| expectedRecordCount, actualRecordCount), expectedRecordCount, actualRecordCount); |
| } |
| |
| @Test // StreamingAgg on nullable columns |
| public void testStreamAggNullableColumns() throws Exception { |
| String query1 = "select t2.b2 from cp.`jsoninput/nullable2.json` t2 group by t2.b2"; |
| String query2 = "select t2.a2, t2.b2 from cp.`jsoninput/nullable2.json` t2 group by t2.a2, t2.b2"; |
| |
| int actualRecordCount; |
| int expectedRecordCount = 2; |
| |
| enableAggr(false, true); |
| actualRecordCount = testSql(query1); |
| assertEquals(String.format("Received unexpected number of rows in output: expected=%d, received=%s", |
| expectedRecordCount, actualRecordCount), expectedRecordCount, actualRecordCount); |
| |
| expectedRecordCount = 4; |
| actualRecordCount = testSql(query2); |
| assertEquals(String.format("Received unexpected number of rows in output: expected=%d, received=%s", |
| expectedRecordCount, actualRecordCount), expectedRecordCount, actualRecordCount); |
| } |
| } |