| /* |
| * 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; |
| |
| import org.apache.drill.PlanTestBase; |
| import org.apache.drill.exec.ExecConstants; |
| import org.apache.drill.test.ClusterFixture; |
| import org.apache.drill.test.ClusterFixtureBuilder; |
| import org.apache.drill.test.ClientFixture; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.PrintWriter; |
| import java.nio.file.Paths; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| public class TestOrderedMuxExchange extends PlanTestBase { |
| |
| private final static String ORDERED_MUX_EXCHANGE = "OrderedMuxExchange"; |
| private final static String TOPN = "TopN"; |
| private final static int NUM_DEPTS = 40; |
| private final static int NUM_EMPLOYEES = 1000; |
| private final static int NUM_MNGRS = 1; |
| private final static int NUM_IDS = 1; |
| private final static String MATCH_PATTERN_ACROSS_LINES = "((?s).*[\\n\\r].*)"; |
| private static final String EMPT_TABLE = "empTable"; |
| |
| /** |
| * Generate data for two tables. Each table consists of several JSON files. |
| */ |
| @BeforeClass |
| public static void generateTestDataAndQueries() throws Exception { |
| // Table consists of two columns "emp_id", "emp_name" and "dept_id" |
| final File empTableLocation = dirTestWatcher.makeRootSubDir(Paths.get(EMPT_TABLE)); |
| |
| // Write 100 records for each new file |
| final int empNumRecsPerFile = 100; |
| for(int fileIndex=0; fileIndex<NUM_EMPLOYEES/empNumRecsPerFile; fileIndex++) { |
| File file = new File(empTableLocation, fileIndex + ".json"); |
| PrintWriter printWriter = new PrintWriter(file); |
| for (int recordIndex = fileIndex*empNumRecsPerFile; recordIndex < (fileIndex+1)*empNumRecsPerFile; recordIndex++) { |
| String record = String.format("{ \"emp_id\" : %d, \"emp_name\" : \"Employee %d\", \"dept_id\" : %d, \"mng_id\" : %d, \"some_id\" : %d }", |
| recordIndex, recordIndex, recordIndex % NUM_DEPTS, recordIndex % NUM_MNGRS, recordIndex % NUM_IDS); |
| printWriter.println(record); |
| } |
| printWriter.close(); |
| } |
| } |
| |
| /** |
| * Test case to verify the OrderedMuxExchange created for order by clause. |
| * It checks by forcing the plan to create OrderedMuxExchange and also verifies the |
| * output column is ordered. |
| * |
| * @throws Exception if anything goes wrong |
| */ |
| |
| @Test |
| public void testOrderedMuxForOrderBy() throws Exception { |
| ClusterFixtureBuilder builder = ClusterFixture.builder(dirTestWatcher) |
| .maxParallelization(1) |
| .configProperty(ExecConstants.SYS_STORE_PROVIDER_LOCAL_ENABLE_WRITE, true); |
| |
| try (ClusterFixture cluster = builder.build(); |
| ClientFixture client = cluster.clientFixture()) { |
| client.alterSession(ExecConstants.SLICE_TARGET, 10); |
| String sql = "SELECT emp_id, emp_name FROM dfs.`empTable` e order BY emp_name, emp_id"; |
| client.testBuilder() |
| .unOrdered() |
| .optionSettingQueriesForTestQuery("alter session set `planner.slice_target` = 10;") |
| .sqlQuery(sql) |
| .optionSettingQueriesForBaseline("alter session set `planner.enable_ordered_mux_exchange` = false") // Use default option setting. |
| .sqlBaselineQuery(sql) |
| .build() |
| .run(); |
| client.alterSession(ExecConstants.ORDERED_MUX_EXCHANGE, true); |
| String explainText = client.queryBuilder().sql(sql).explainText(); |
| assertTrue(explainText.contains(ORDERED_MUX_EXCHANGE)); |
| } |
| } |
| |
| /** |
| * Test case to verify the OrderedMuxExchange created for window functions. |
| * It checks by forcing the plan to create OrderedMuxExchange and also verifies the |
| * output column is ordered. |
| * |
| * @throws Exception if anything goes wrong |
| */ |
| |
| @Test |
| public void testOrderedMuxForWindowAgg() throws Exception { |
| ClusterFixtureBuilder builder = ClusterFixture.builder(dirTestWatcher) |
| .maxParallelization(1) |
| .configProperty(ExecConstants.SYS_STORE_PROVIDER_LOCAL_ENABLE_WRITE, true); |
| |
| try (ClusterFixture cluster = builder.build(); |
| ClientFixture client = cluster.clientFixture()) { |
| client.alterSession(ExecConstants.SLICE_TARGET, 10); |
| String sql = "SELECT emp_name, max(emp_id) over (order by emp_name) FROM dfs.`empTable` e order BY emp_name"; |
| client.testBuilder() |
| .unOrdered() |
| .optionSettingQueriesForTestQuery("alter session set `planner.slice_target` = 10;") |
| .sqlQuery(sql) |
| .optionSettingQueriesForBaseline("alter session set `planner.enable_ordered_mux_exchange` = false") // Use default option setting. |
| .sqlBaselineQuery(sql) |
| .build() |
| .run(); |
| client.alterSession(ExecConstants.ORDERED_MUX_EXCHANGE, true); |
| String explainText = client.queryBuilder().sql(sql).explainText(); |
| assertTrue(explainText.contains(ORDERED_MUX_EXCHANGE)); |
| } |
| } |
| |
| |
| /** |
| * Test case to verify the OrderedMuxExchange created for order by with limit. |
| * It checks that the limit is pushed down the OrderedMuxExchange. |
| * |
| * @throws Exception if anything goes wrong |
| */ |
| @Test |
| public void testLimitOnOrderedMux() throws Exception { |
| ClusterFixtureBuilder builder = ClusterFixture.builder(dirTestWatcher) |
| .maxParallelization(1) |
| .configProperty(ExecConstants.SYS_STORE_PROVIDER_LOCAL_ENABLE_WRITE, true); |
| |
| try (ClusterFixture cluster = builder.build(); |
| ClientFixture client = cluster.clientFixture()) { |
| client.alterSession(ExecConstants.SLICE_TARGET, 10); |
| String sql = "SELECT emp_id, emp_name FROM dfs.`empTable` e order BY emp_name, emp_id limit 10"; |
| client.testBuilder() |
| .unOrdered() |
| .optionSettingQueriesForTestQuery("alter session set `planner.slice_target` = 10;") |
| .sqlQuery(sql) |
| .optionSettingQueriesForBaseline("alter session set `planner.enable_ordered_mux_exchange` = false") // Use default option setting. |
| .sqlBaselineQuery(sql) |
| .build() |
| .run(); |
| client.alterSession(ExecConstants.ORDERED_MUX_EXCHANGE, true); |
| String explainText = client.queryBuilder().sql(sql).explainText(); |
| assertTrue(explainText.matches(String.format(MATCH_PATTERN_ACROSS_LINES + "%s"+ |
| MATCH_PATTERN_ACROSS_LINES +"%s"+MATCH_PATTERN_ACROSS_LINES,ORDERED_MUX_EXCHANGE, TOPN))); |
| } |
| } |
| |
| /** |
| * Test case to verify the OrderedMuxExchange created for order by with limit and window agg. |
| * It checks that the limit is pushed down the OrderedMuxExchange. |
| * |
| * @throws Exception if anything goes wrong |
| */ |
| @Test |
| public void testLimitOnOrderedMuxWindow() throws Exception { |
| ClusterFixtureBuilder builder = ClusterFixture.builder(dirTestWatcher) |
| .maxParallelization(1) |
| .configProperty(ExecConstants.SYS_STORE_PROVIDER_LOCAL_ENABLE_WRITE, true); |
| |
| try (ClusterFixture cluster = builder.build(); |
| ClientFixture client = cluster.clientFixture()) { |
| client.alterSession(ExecConstants.SLICE_TARGET, 10); |
| String sql = "SELECT emp_name, max(emp_id) over (order by emp_name) FROM dfs.`empTable` e order BY emp_name limit 10"; |
| client.testBuilder() |
| .unOrdered() |
| .optionSettingQueriesForTestQuery("alter session set `planner.slice_target` = 10;") |
| .sqlQuery(sql) |
| .optionSettingQueriesForBaseline("alter session set `planner.enable_ordered_mux_exchange` = false") // Use default option setting. |
| .sqlBaselineQuery(sql) |
| .build() |
| .run(); |
| client.alterSession(ExecConstants.ORDERED_MUX_EXCHANGE, true); |
| String explainText = client.queryBuilder().sql(sql).explainText(); |
| assertTrue(explainText.matches(String.format(MATCH_PATTERN_ACROSS_LINES + "%s"+ |
| MATCH_PATTERN_ACROSS_LINES +"%s"+MATCH_PATTERN_ACROSS_LINES,ORDERED_MUX_EXCHANGE, TOPN))); |
| } |
| } |
| } |