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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.iotdb.db.integration.aggregation;
import org.apache.iotdb.db.conf.IoTDBDescriptor;
import org.apache.iotdb.db.engine.compaction.CompactionStrategy;
import org.apache.iotdb.db.utils.EnvironmentUtils;
import org.apache.iotdb.jdbc.Config;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import static org.apache.iotdb.db.constant.TestConstant.first_value;
import static org.apache.iotdb.db.constant.TestConstant.last_value;
import static org.junit.Assert.fail;
public class IoTDBAggregationScanOrderIT {
private static final String[] sqls =
new String[] {
"insert into root.sg1.d1(time, s1) values (12, 12);",
"flush;",
"insert into root.sg1.d1(time, s2) values (30, 30);",
"flush;",
"insert into root.sg1.d1(time, s1) values (0, 0);",
"insert into root.sg1.d1(time, s1) values (8, 8);",
"flush;",
"insert into root.sg1.d1(time, s1) values (0, 0);",
"insert into root.sg1.d1(time, s1) values (10, 10);",
"flush;",
"insert into root.sg1.d1(time, s1) values (17, 17);",
"insert into root.sg1.d1(time, s1) values (20, 20);",
"flush;"
};
@BeforeClass
public static void setUp() throws Exception {
EnvironmentUtils.closeStatMonitor();
EnvironmentUtils.envSetUp();
IoTDBDescriptor.getInstance()
.getConfig()
.setCompactionStrategy(CompactionStrategy.NO_COMPACTION);
insertSQL();
}
@AfterClass
public static void tearDown() throws Exception {
EnvironmentUtils.cleanEnv();
IoTDBDescriptor.getInstance()
.getConfig()
.setCompactionStrategy(CompactionStrategy.LEVEL_COMPACTION);
}
@Test
public void test() throws ClassNotFoundException {
String expectedRet = "0.0,20.0";
String d1s1 = "root.sg1.d1.s1";
Class.forName(Config.JDBC_DRIVER_NAME);
try (Connection connection =
DriverManager.getConnection("jdbc:iotdb://127.0.0.1:6667/", "root", "root");
Statement statement = connection.createStatement()) {
boolean hasResultSet =
statement.execute("select first_value(s1), last_value(s1) from root.sg1.d1;");
Assert.assertTrue(hasResultSet);
try (ResultSet resultSet = statement.getResultSet()) {
Assert.assertTrue(resultSet.next());
String ans =
resultSet.getString(first_value(d1s1)) + "," + resultSet.getString(last_value(d1s1));
Assert.assertEquals(expectedRet, ans);
Assert.assertFalse(resultSet.next());
}
hasResultSet =
statement.execute(
"select first_value(s1), last_value(s1) from root.sg1.d1 order by time desc;");
Assert.assertTrue(hasResultSet);
try (ResultSet resultSet = statement.getResultSet()) {
Assert.assertTrue(resultSet.next());
String ans =
resultSet.getString(first_value(d1s1)) + "," + resultSet.getString(last_value(d1s1));
Assert.assertEquals(expectedRet, ans);
Assert.assertFalse(resultSet.next());
}
} catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
public static void insertSQL() throws ClassNotFoundException {
Class.forName(Config.JDBC_DRIVER_NAME);
try (Connection connection =
DriverManager.getConnection(
Config.IOTDB_URL_PREFIX + "127.0.0.1:6667/", "root", "root");
Statement statement = connection.createStatement()) {
for (String sql : sqls) {
statement.execute(sql);
}
} catch (Exception e) {
e.printStackTrace();
fail(e.getMessage());
}
}
}