|
| 1 | +/* |
| 2 | + * |
| 3 | + * * Licensed to the Apache Software Foundation (ASF) under one |
| 4 | + * * or more contributor license agreements. See the NOTICE file |
| 5 | + * * distributed with this work for additional information |
| 6 | + * * regarding copyright ownership. The ASF licenses this file |
| 7 | + * * to you under the Apache License, Version 2.0 (the |
| 8 | + * * "License"); you may not use this file except in compliance |
| 9 | + * * with the License. You may obtain a copy of the License at |
| 10 | + * * |
| 11 | + * * http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | + * * |
| 13 | + * * Unless required by applicable law or agreed to in writing, |
| 14 | + * * software distributed under the License is distributed on an |
| 15 | + * * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 16 | + * * KIND, either express or implied. See the License for the |
| 17 | + * * specific language governing permissions and limitations |
| 18 | + * * under the License. |
| 19 | + * |
| 20 | + */ |
| 21 | + |
| 22 | +package org.apache.iotdb.relational.it.query.recent; |
| 23 | + |
| 24 | +import org.apache.iotdb.it.env.EnvFactory; |
| 25 | +import org.apache.iotdb.it.framework.IoTDBTestRunner; |
| 26 | +import org.apache.iotdb.itbase.category.TableClusterIT; |
| 27 | +import org.apache.iotdb.itbase.category.TableLocalStandaloneIT; |
| 28 | +import org.apache.iotdb.itbase.env.BaseEnv; |
| 29 | + |
| 30 | +import org.junit.After; |
| 31 | +import org.junit.AfterClass; |
| 32 | +import org.junit.Assert; |
| 33 | +import org.junit.Before; |
| 34 | +import org.junit.BeforeClass; |
| 35 | +import org.junit.Test; |
| 36 | +import org.junit.experimental.categories.Category; |
| 37 | +import org.junit.runner.RunWith; |
| 38 | + |
| 39 | +import java.sql.Connection; |
| 40 | +import java.sql.ResultSet; |
| 41 | +import java.sql.SQLException; |
| 42 | +import java.sql.Statement; |
| 43 | +import java.util.Arrays; |
| 44 | +import java.util.Locale; |
| 45 | +import java.util.function.ToLongFunction; |
| 46 | +import java.util.regex.Matcher; |
| 47 | +import java.util.regex.Pattern; |
| 48 | + |
| 49 | +import static org.junit.Assert.assertEquals; |
| 50 | +import static org.junit.Assert.fail; |
| 51 | + |
| 52 | +@RunWith(IoTDBTestRunner.class) |
| 53 | +@Category({TableLocalStandaloneIT.class, TableClusterIT.class}) |
| 54 | +public class IoTExplainAnalyzeIT { |
| 55 | + private static final String DATABASE_NAME = "testdb"; |
| 56 | + |
| 57 | + private static final String[] creationSqls = |
| 58 | + new String[] { |
| 59 | + "CREATE DATABASE IF NOT EXISTS testdb", |
| 60 | + "USE testdb", |
| 61 | + "CREATE TABLE IF NOT EXISTS testtb(deviceid STRING TAG, voltage FLOAT FIELD)", |
| 62 | + "INSERT INTO testtb VALUES(1000, 'd1', 100.0)", |
| 63 | + "INSERT INTO testtb VALUES(2000, 'd1', 200.0)", |
| 64 | + "INSERT INTO testtb VALUES(1000, 'd2', 300.0)", |
| 65 | + }; |
| 66 | + |
| 67 | + private static final String dropDbSqls = "DROP DATABASE IF EXISTS testdb"; |
| 68 | + |
| 69 | + @BeforeClass |
| 70 | + public static void setUpClass() { |
| 71 | + Locale.setDefault(Locale.ENGLISH); |
| 72 | + |
| 73 | + EnvFactory.getEnv() |
| 74 | + .getConfig() |
| 75 | + .getCommonConfig() |
| 76 | + .setPartitionInterval(1000) |
| 77 | + .setMemtableSizeThreshold(10000) |
| 78 | + .setMaxRowsInCteBuffer(100); |
| 79 | + EnvFactory.getEnv().initClusterEnvironment(); |
| 80 | + } |
| 81 | + |
| 82 | + @AfterClass |
| 83 | + public static void tearDownClass() { |
| 84 | + EnvFactory.getEnv().cleanClusterEnvironment(); |
| 85 | + } |
| 86 | + |
| 87 | + @Before |
| 88 | + public void setUp() throws SQLException { |
| 89 | + prepareData(); |
| 90 | + } |
| 91 | + |
| 92 | + @After |
| 93 | + public void tearDown() { |
| 94 | + try (Connection connection = EnvFactory.getEnv().getConnection(BaseEnv.TABLE_SQL_DIALECT); |
| 95 | + Statement statement = connection.createStatement()) { |
| 96 | + statement.execute(dropDbSqls); |
| 97 | + } catch (Exception e) { |
| 98 | + fail(e.getMessage()); |
| 99 | + } |
| 100 | + } |
| 101 | + |
| 102 | + @Test |
| 103 | + public void testEmptyCteQuery() throws SQLException { |
| 104 | + ResultSet resultSet = null; |
| 105 | + String sql = |
| 106 | + "explain analyze with cte1 as materialized (select * from testtb1) select * from testtb, cte1 where testtb.deviceid = cte1.deviceid"; |
| 107 | + try (Connection conn = EnvFactory.getEnv().getConnection(BaseEnv.TABLE_SQL_DIALECT); |
| 108 | + Statement statement = conn.createStatement()) { |
| 109 | + statement.execute("Use testdb"); |
| 110 | + statement.execute( |
| 111 | + "CREATE TABLE IF NOT EXISTS testtb1(deviceid STRING TAG, voltage FLOAT FIELD)"); |
| 112 | + resultSet = statement.executeQuery(sql); |
| 113 | + StringBuilder sb = new StringBuilder(); |
| 114 | + while (resultSet.next()) { |
| 115 | + sb.append(resultSet.getString(1)).append(System.lineSeparator()); |
| 116 | + } |
| 117 | + String result = sb.toString(); |
| 118 | + Assert.assertFalse( |
| 119 | + "Explain Analyze should not contain ExplainAnalyze node.", |
| 120 | + result.contains("ExplainAnalyzeNode")); |
| 121 | + |
| 122 | + String[] lines = result.split(System.lineSeparator()); |
| 123 | + Assert.assertTrue(lines.length > 3); |
| 124 | + Assert.assertEquals("CTE Query : 'cte1'", lines[0]); |
| 125 | + Assert.assertEquals("", lines[1]); |
| 126 | + Assert.assertEquals("Main Query", lines[2]); |
| 127 | + statement.execute("DROP TABLE testtb1"); |
| 128 | + } finally { |
| 129 | + if (resultSet != null) { |
| 130 | + resultSet.close(); |
| 131 | + } |
| 132 | + } |
| 133 | + } |
| 134 | + |
| 135 | + @Test |
| 136 | + public void testCteQueryExceedsThreshold() throws SQLException { |
| 137 | + ResultSet resultSet = null; |
| 138 | + String sql = |
| 139 | + "explain analyze with cte1 as materialized (select * from testtb2) select * from testtb where testtb.deviceid in (select deviceid from cte1)"; |
| 140 | + try (Connection conn = EnvFactory.getEnv().getConnection(BaseEnv.TABLE_SQL_DIALECT); |
| 141 | + Statement statement = conn.createStatement()) { |
| 142 | + statement.execute("Use testdb"); |
| 143 | + statement.execute( |
| 144 | + "CREATE TABLE IF NOT EXISTS testtb2(deviceid STRING TAG, voltage FLOAT FIELD)"); |
| 145 | + for (int i = 0; i < 100; i++) { |
| 146 | + statement.addBatch( |
| 147 | + String.format("insert into testtb2(deviceid, voltage) values('d%d', %d)", i, i)); |
| 148 | + } |
| 149 | + statement.executeBatch(); |
| 150 | + resultSet = statement.executeQuery(sql); |
| 151 | + StringBuilder sb = new StringBuilder(); |
| 152 | + while (resultSet.next()) { |
| 153 | + sb.append(resultSet.getString(1)).append(System.lineSeparator()); |
| 154 | + } |
| 155 | + |
| 156 | + String result = sb.toString(); |
| 157 | + Assert.assertFalse( |
| 158 | + "Main Query should not contain CteScan node when the CTE query's result set exceeds threshold.", |
| 159 | + result.contains("CteScanNode(CteScanOperator)")); |
| 160 | + Assert.assertTrue( |
| 161 | + "CTE Query should contain warning message when CTE query's result set exceeds threshold.", |
| 162 | + result.contains("Failed to materialize CTE")); |
| 163 | + Assert.assertFalse( |
| 164 | + "Explain Analyze should not contain ExplainAnalyze node.", |
| 165 | + result.contains("ExplainAnalyzeNode")); |
| 166 | + |
| 167 | + String[] plans = result.split("Main Query"); |
| 168 | + for (String plan : plans) { |
| 169 | + String[] lines = plan.split(System.lineSeparator()); |
| 170 | + long[] instanceCount = |
| 171 | + Arrays.stream(lines) |
| 172 | + .filter(line -> line.contains("Fragment Instances Count:")) |
| 173 | + .mapToLong(extractNumber("Fragment Instances Count:\\s(\\d+)")) |
| 174 | + .toArray(); |
| 175 | + assertEquals(instanceCount.length, 1); |
| 176 | + |
| 177 | + long totalInstances = |
| 178 | + Arrays.stream(lines).filter(line -> line.contains("FRAGMENT-INSTANCE")).count(); |
| 179 | + assertEquals(totalInstances, instanceCount[0]); |
| 180 | + } |
| 181 | + |
| 182 | + statement.execute("DROP TABLE testtb2"); |
| 183 | + } finally { |
| 184 | + if (resultSet != null) { |
| 185 | + resultSet.close(); |
| 186 | + } |
| 187 | + } |
| 188 | + } |
| 189 | + |
| 190 | + @Test |
| 191 | + public void testCteQuerySuccess() throws SQLException { |
| 192 | + ResultSet resultSet = null; |
| 193 | + String sql = |
| 194 | + "explain analyze with cte1 as materialized (select * from testtb3) select * from testtb where testtb.deviceid in (select deviceid from cte1)"; |
| 195 | + try (Connection conn = EnvFactory.getEnv().getConnection(BaseEnv.TABLE_SQL_DIALECT); |
| 196 | + Statement statement = conn.createStatement()) { |
| 197 | + statement.execute("Use testdb"); |
| 198 | + statement.execute( |
| 199 | + "CREATE TABLE IF NOT EXISTS testtb3(deviceid STRING TAG, voltage FLOAT FIELD)"); |
| 200 | + for (int i = 0; i < 50; i++) { |
| 201 | + statement.addBatch( |
| 202 | + String.format("insert into testtb3(deviceid, voltage) values('d%d', %d)", i, i)); |
| 203 | + } |
| 204 | + statement.executeBatch(); |
| 205 | + resultSet = statement.executeQuery(sql); |
| 206 | + StringBuilder sb = new StringBuilder(); |
| 207 | + while (resultSet.next()) { |
| 208 | + sb.append(resultSet.getString(1)).append(System.lineSeparator()); |
| 209 | + } |
| 210 | + |
| 211 | + String result = sb.toString(); |
| 212 | + Assert.assertTrue( |
| 213 | + "Main Query should contain CteScan node when the CTE query's result set exceeds threshold.", |
| 214 | + result.contains("CteScanNode(CteScanOperator)")); |
| 215 | + Assert.assertFalse( |
| 216 | + "Explain Analyze should not contain ExplainAnalyze node.", |
| 217 | + result.contains("ExplainAnalyzeNode")); |
| 218 | + |
| 219 | + String[] plans = result.split("Main Query"); |
| 220 | + for (String plan : plans) { |
| 221 | + String[] lines = plan.split(System.lineSeparator()); |
| 222 | + long[] instanceCount = |
| 223 | + Arrays.stream(lines) |
| 224 | + .filter(line -> line.contains("Fragment Instances Count:")) |
| 225 | + .mapToLong(extractNumber("Fragment Instances Count:\\s(\\d+)")) |
| 226 | + .toArray(); |
| 227 | + assertEquals(instanceCount.length, 1); |
| 228 | + |
| 229 | + long totalInstances = |
| 230 | + Arrays.stream(lines).filter(line -> line.contains("FRAGMENT-INSTANCE")).count(); |
| 231 | + assertEquals(totalInstances, instanceCount[0]); |
| 232 | + } |
| 233 | + |
| 234 | + statement.execute("DROP TABLE testtb3"); |
| 235 | + } finally { |
| 236 | + if (resultSet != null) { |
| 237 | + resultSet.close(); |
| 238 | + } |
| 239 | + } |
| 240 | + } |
| 241 | + |
| 242 | + private static ToLongFunction<String> extractNumber(String regex) { |
| 243 | + return line -> { |
| 244 | + Pattern pattern = Pattern.compile(regex); |
| 245 | + Matcher matcher = pattern.matcher(line); |
| 246 | + if (matcher.find()) { |
| 247 | + return Long.parseLong(matcher.group(1)); |
| 248 | + } |
| 249 | + return 0; |
| 250 | + }; |
| 251 | + } |
| 252 | + |
| 253 | + private static void prepareData() { |
| 254 | + try (Connection connection = EnvFactory.getEnv().getConnection(BaseEnv.TABLE_SQL_DIALECT); |
| 255 | + Statement statement = connection.createStatement()) { |
| 256 | + |
| 257 | + for (String sql : creationSqls) { |
| 258 | + statement.execute(sql); |
| 259 | + } |
| 260 | + } catch (Exception e) { |
| 261 | + fail(e.getMessage()); |
| 262 | + } |
| 263 | + } |
| 264 | +} |
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