| /** |
| * 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.tajo.engine.query; |
| |
| import org.apache.tajo.QueryTestCaseBase; |
| import org.apache.tajo.TajoConstants; |
| import org.junit.Test; |
| |
| import java.sql.ResultSet; |
| |
| public class TestTableSubQuery extends QueryTestCaseBase { |
| |
| public TestTableSubQuery() { |
| super(TajoConstants.DEFAULT_DATABASE_NAME); |
| } |
| |
| @Test |
| public final void testTableSubquery1() throws Exception { |
| ResultSet res = executeQuery(); |
| assertResultSet(res); |
| cleanupQuery(res); |
| } |
| |
| @Test |
| public final void testGroupBySubQuery() throws Exception { |
| ResultSet res = executeQuery(); |
| assertResultSet(res); |
| cleanupQuery(res); |
| } |
| |
| @Test |
| public final void testJoinSubQuery() throws Exception { |
| ResultSet res = executeQuery(); |
| assertResultSet(res); |
| cleanupQuery(res); |
| } |
| |
| @Test |
| public final void testJoinSubQuery2() throws Exception { |
| ResultSet res = executeQuery(); |
| assertResultSet(res); |
| cleanupQuery(res); |
| } |
| |
| @Test |
| public final void testGroupbySubqueryWithJson() throws Exception { |
| ResultSet res = executeJsonQuery(); |
| assertResultSet(res); |
| cleanupQuery(res); |
| } |
| |
| @Test |
| public final void testJoinSubqueryWithJson() throws Exception { |
| /* |
| SELECT |
| A.n_regionkey, B.r_regionkey, A.n_name, B.r_name |
| FROM |
| (SELECT * FROM nation WHERE n_name LIKE 'A%') A |
| JOIN region B ON A.n_regionkey=B.r_regionkey; |
| */ |
| ResultSet res = executeJsonQuery(); |
| assertResultSet(res); |
| cleanupQuery(res); |
| } |
| |
| @Test |
| @Option(sort = true) |
| @SimpleTest( |
| queries = @QuerySpec("" + |
| "select \n" + |
| " o_custkey, cnt \n" + |
| "from \n" + |
| " ( \n" + |
| " select \n" + |
| " o_custkey, cnt, row_number() over (partition by o_custkey order by cnt desc) ranking \n" + |
| " from \n" + |
| " (\n" + |
| " select \n" + |
| " o_custkey, l_suppkey, count(*) cnt\n" + |
| " from \n" + |
| " orders, lineitem\n" + |
| " where \n" + |
| " l_orderkey = o_orderkey\n" + |
| " group by \n" + |
| " o_custkey, l_suppkey\n" + |
| " having cnt > 0\n" + |
| " ) t\n" + |
| " ) t2 \n" + |
| "where \n" + |
| " ranking = 1;" |
| ) |
| ) |
| public void testMultipleSubqueriesWithAggregation() throws Exception { |
| runSimpleTests(); |
| } |
| } |