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/*
* 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.physical.impl.join;
import org.apache.drill.categories.SqlTest;
import org.apache.drill.exec.ExecConstants;
import org.apache.drill.test.ClusterFixture;
import org.apache.drill.test.ClusterTest;
import org.junit.After;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import static org.hamcrest.CoreMatchers.containsString;
import static org.junit.Assert.assertThat;
import java.nio.file.Paths;
@Category(SqlTest.class)
public class TestHashJoinJPPDCorrectness extends ClusterTest {
private static final String ALTER_RUNTIME_FILTER_OPTION_COMMAND = "ALTER SESSION SET `" +
ExecConstants.HASHJOIN_ENABLE_RUNTIME_FILTER_KEY + "` = %s";
private static final String ALTER_RUNTIME_FILTER_WAITING_OPTION_COMMAND = "ALTER SESSION SET `" +
ExecConstants.HASHJOIN_RUNTIME_FILTER_WAITING_ENABLE_KEY + "` = %s";
private static final String ALTER_RUNTIME_FILTER_WAIT_TIME_OPTION_COMMAND = "ALTER SESSION SET `" +
ExecConstants.HASHJOIN_RUNTIME_FILTER_MAX_WAITING_TIME_KEY + "` = %d";
private static final String ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND =
String.format("%s;%s;%s", ALTER_RUNTIME_FILTER_OPTION_COMMAND, ALTER_RUNTIME_FILTER_WAITING_OPTION_COMMAND,
ALTER_RUNTIME_FILTER_WAIT_TIME_OPTION_COMMAND);
@BeforeClass
public static void setUp() throws Exception {
dirTestWatcher.copyResourceToRoot(Paths.get("tpchmulti"));
// Reduce the slice target so that there are multiple minor fragments with exchange, otherwise RuntimeFilter
// will not be inserted in the plan
startCluster(ClusterFixture.builder(dirTestWatcher)
.clusterSize(2)
.maxParallelization(1)
.systemOption(ExecConstants.SLICE_TARGET, 10));
}
@After
public void tearDown() {
client.resetSession(ExecConstants.HASHJOIN_ENABLE_RUNTIME_FILTER_KEY);
client.resetSession(ExecConstants.HASHJOIN_RUNTIME_FILTER_WAITING_ENABLE_KEY);
}
/**
* Test to make sure runtime filter is inserted in the plan. This is to ensure that with current cluster setup and
* system options distributed plan is generated rather than single fragment plan. Since in later case RuntimeFilter
* will not be inserted.
*/
@Test
public void testRuntimeFilterPresentInPlan() throws Exception {
String sql = "SELECT l.n_name, r.r_name FROM dfs.`tpchmulti/nation` l, dfs.`tpchmulti/region/` r where " +
"l.n_regionkey = r.r_regionkey";
client.alterSession(ExecConstants.HASHJOIN_ENABLE_RUNTIME_FILTER_KEY, true);
String queryPlan = queryBuilder().sql(sql).explainText();
assertThat("Query plan doesn't contain RuntimeFilter. This may happen if plan is not distributed and has no " +
"exchange operator in it.", queryPlan, containsString("RuntimeFilter"));
}
/**
* Verifies that result of a query with join condition doesn't changes with and without Runtime Filter for correctness
*/
@Test
public void testHashJoinCorrectnessWithRuntimeFilter() throws Exception {
String sql = "SELECT l.n_name, r.r_name FROM dfs.`tpchmulti/nation` l, dfs.`tpchmulti/region/` r where " +
"l.n_regionkey = r.r_regionkey";
testBuilder()
.unOrdered()
.sqlQuery(sql)
.optionSettingQueriesForTestQuery(ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND, "true", "true", 6000)
.sqlBaselineQuery(sql)
.optionSettingQueriesForBaseline(ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND, "false", "false", 1)
.go();
}
/**
* Verifies that result of query with join condition and filter condition is same with or without RuntimeFilter. In
* this case order of join and filter condition is same for both test and baseline query
*/
@Test
public void testSameOrderOfJoinAndFilterConditionProduceSameResult() throws Exception {
String testAndBaselineQuery = "SELECT count(*) FROM dfs.`tpchmulti/nation` l, dfs.`tpchmulti/region/` r where " +
"l.n_regionkey = r.r_regionkey and r.r_name = 'AMERICA'";
testBuilder()
.unOrdered()
.sqlQuery(testAndBaselineQuery)
.optionSettingQueriesForTestQuery(ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND, "true", "true", 6000)
.sqlBaselineQuery(testAndBaselineQuery)
.optionSettingQueriesForBaseline(ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND, "false", "false", 1)
.go();
}
/**
* Verifies that result of query with join condition and filter condition is same with or without RuntimeFilter. In
* this case order of join and filter condition is swapped between test and baseline query. Also the filter
* condition is second in case of test query
*/
@Test
public void testDifferentOrderOfJoinAndFilterCondition_filterConditionSecond() throws Exception {
String testQuery = "SELECT count(*) FROM dfs.`tpchmulti/nation` l, dfs.`tpchmulti/region/` r where " +
"l.n_regionkey = r.r_regionkey and r.r_name = 'AMERICA'";
String baselineQuery = "SELECT count(*) FROM dfs.`tpchmulti/nation` l, dfs.`tpchmulti/region/` r where " +
"r.r_name = 'AMERICA' and l.n_regionkey = r.r_regionkey";
testBuilder()
.unOrdered()
.sqlQuery(testQuery)
.optionSettingQueriesForTestQuery(ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND, "true", "true", 6000)
.sqlBaselineQuery(baselineQuery)
.optionSettingQueriesForBaseline(ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND, "false", "false", 1)
.go();
}
/**
* Verifies that result of query doesn't change if filter and join condition order is different in test query with
* RuntimeFilter and baseline query without RuntimeFilter. In this case the filter condition is first condition in
* test query with RuntimeFilter
*/
@Test
public void testDifferentOrderOfJoinAndFilterCondition_filterConditionFirst() throws Exception {
String testQuery = "SELECT count(*) FROM dfs.`tpchmulti/nation` l, dfs.`tpchmulti/region/` r where " +
"r.r_name = 'AMERICA' and l.n_regionkey = r.r_regionkey";
String baselineQuery = "SELECT count(*) FROM dfs.`tpchmulti/nation` l, dfs.`tpchmulti/region/` r where " +
"l.n_regionkey = r.r_regionkey and r.r_name = 'AMERICA'";
testBuilder()
.unOrdered()
.sqlQuery(testQuery)
.optionSettingQueriesForTestQuery(ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND, "true", "true", 6000)
.sqlBaselineQuery(baselineQuery)
.optionSettingQueriesForBaseline(ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND, "false", "false", 1)
.go();
}
/**
* Verifies that result of query doesn't change if filter and join condition order is different in test query with
* RuntimeFilter and baseline query with RuntimeFilter. In this case both test and baseline query has RuntimeFilter
* in it.
*/
@Test
public void testDifferentOrderOfJoinAndFilterConditionAndRTF() throws Exception {
String testQuery = "SELECT count(*) FROM dfs.`tpchmulti/nation` l, dfs.`tpchmulti/region/` r where " +
"l.n_regionkey = r.r_regionkey and r.r_name = 'AMERICA'";
String baselineQuery = "SELECT count(*) FROM dfs.`tpchmulti/nation` l, dfs.`tpchmulti/region/` r where " +
"r.r_name = 'AMERICA' and l.n_regionkey = r.r_regionkey";
testBuilder()
.unOrdered()
.sqlQuery(testQuery)
.optionSettingQueriesForTestQuery(ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND, "true", "true", 6000)
.sqlBaselineQuery(baselineQuery)
.optionSettingQueriesForBaseline(ALTER_RUNTIME_FILTER_ENABLE_AND_WAIT_OPTION_COMMAND, "true", "true", 6000)
.go();
}
}
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