| /* |
| * 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.phoenix.end2end; |
| |
| import static org.apache.phoenix.util.TestUtil.TEST_PROPERTIES; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.sql.Connection; |
| import java.sql.Date; |
| import java.sql.DriverManager; |
| import java.sql.PreparedStatement; |
| import java.sql.ResultSet; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import org.apache.phoenix.query.QueryServices; |
| import org.apache.phoenix.util.PropertiesUtil; |
| import org.apache.phoenix.util.ReadOnlyProps; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import com.google.common.collect.Maps; |
| |
| |
| public class CountDistinctCompressionIT extends BaseUniqueNamesOwnClusterIT { |
| @BeforeClass |
| public static synchronized void doSetup() throws Exception { |
| Map<String, String> props = Maps.newHashMapWithExpectedSize(3); |
| // Must update config before starting server |
| props.put(QueryServices.DISTINCT_VALUE_COMPRESS_THRESHOLD_ATTRIB, Long.toString(1)); |
| setUpTestDriver(new ReadOnlyProps(props.entrySet().iterator())); |
| } |
| |
| @Test |
| public void testDistinctCountOnColumn() throws Exception { |
| String tenantId = getOrganizationId(); |
| String tableName = initATableValues(null, tenantId, getDefaultSplits(tenantId), (Date)null, null, getUrl(), null); |
| |
| String query = "SELECT count(DISTINCT A_STRING) FROM " + tableName; |
| |
| Properties props = PropertiesUtil.deepCopy(TEST_PROPERTIES); |
| Connection conn = DriverManager.getConnection(getUrl(), props); |
| try { |
| PreparedStatement statement = conn.prepareStatement(query); |
| ResultSet rs = statement.executeQuery(); |
| assertTrue(rs.next()); |
| assertEquals(3, rs.getLong(1)); |
| assertFalse(rs.next()); |
| } finally { |
| conn.close(); |
| } |
| } |
| } |