/**
 * 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.IntegrationTest;
import org.apache.tajo.QueryTestCaseBase;
import org.junit.Test;
import org.junit.experimental.categories.Category;

import java.sql.ResultSet;

@Category(IntegrationTest.class)
public class TestJoinQuery extends QueryTestCaseBase {
  @Test
  public final void testCrossJoin() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testWhereClauseJoin1() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testWhereClauseJoin2() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testWhereClauseJoin3() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testWhereClauseJoin4() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testWhereClauseJoin5() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testWhereClauseJoin6() throws Exception {
    ResultSet res = executeQuery();
    System.out.println(resultSetToString(res));
    cleanupQuery(res);
  }

  @Test
  public final void testTPCHQ2Join() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testLeftOuterJoin1() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testLeftOuterJoinWithConstantExpr1() throws Exception {
    // outer join with constant projections
    //
    // select c_custkey, orders.o_orderkey, 'val' as val from customer
    // left outer join orders on c_custkey = o_orderkey;
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testLeftOuterJoinWithConstantExpr2() throws Exception {
    // outer join with constant projections
    //
    // select c_custkey, o.o_orderkey, 'val' as val from customer left outer join
    // (select * from orders) o on c_custkey = o.o_orderkey
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testLeftOuterJoinWithConstantExpr3() throws Exception {
    // outer join with constant projections
    //
    // select a.c_custkey, 123::INT8 as const_val, b.min_name from customer a
    // left outer join ( select c_custkey, min(c_name) as min_name from customer group by c_custkey) b
    // on a.c_custkey = b.c_custkey;
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testRightOuterJoin1() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testFullOuterJoin1() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public void testJoinCoReferredEvals1() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public void testJoinCoReferredEvalsWithSameExprs1() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public void testJoinCoReferredEvalsWithSameExprs2() throws Exception {
    // including grouping operator
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public void testCrossJoinAndCaseWhen() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public void testOuterJoinAndCaseWhen1() throws Exception {
    executeDDL("oj_table1_ddl.sql", "table1.tbl");
    executeDDL("oj_table2_ddl.sql", "table2.tbl");
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public void testCrossJoinWithAsterisk1() throws Exception {
    // select region.*, customer.* from region, customer;
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
   public void testCrossJoinWithAsterisk2() throws Exception {
    // select region.*, customer.* from customer, region;
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public void testCrossJoinWithAsterisk3() throws Exception {
    // select * from customer, region
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public void testCrossJoinWithAsterisk4() throws Exception {
    // select length(r_regionkey), *, c_custkey*10 from customer, region
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testInnerJoinWithEmptyTable() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testLeftOuterJoinWithEmptyTable1() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testLeftOuterJoinWithEmptyTable2() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testLeftOuterJoinWithEmptyTable3() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testLeftOuterJoinWithEmptyTable4() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testRightOuterJoinWithEmptyTable1() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testFullOuterJoinWithEmptyTable1() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

  @Test
  public final void testCrossJoinWithEmptyTable1() throws Exception {
    ResultSet res = executeQuery();
    assertResultSet(res);
    cleanupQuery(res);
  }

}