content: /*
   * Copyright 1999-2017 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.druid.bvt.sql.hive;
  
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.ast.SQLStatement;
  import com.alibaba.druid.sql.ast.statement.SQLSelectOrderByItem;
  import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
  import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
  import com.alibaba.druid.util.JdbcConstants;
  import junit.framework.TestCase;
  
  import java.util.List;
  
  public class HiveSelectTest_13_cluster_by
          extends TestCase {
      public void test_0() throws Exception {
          String sql = "select buyer_id,seller_id ,order_id,div_pay_amt,t1.dim_seller.member_id,t1.dim_buyer.member_id from LD_aly.fct_pay_ord_cn_di t1 cluster by buyer_id,seller_id \n";
  
          List<SQLStatement> statementList = SQLUtils.parseStatements(sql, JdbcConstants.HIVE);
          SQLSelectStatement stmt = (SQLSelectStatement) statementList.get(0);
  
          assertEquals("SELECT buyer_id, seller_id, order_id, div_pay_amt, t1.dim_seller.member_id\n" +
                  "\t, t1.dim_buyer.member_id\n" +
                  "FROM LD_aly.fct_pay_ord_cn_di t1\n" +
                  "CLUSTER BY buyer_id, seller_id", stmt.toString());
  
          assertEquals("SELECT buyer_id, seller_id, order_id, div_pay_amt, t1.dim_seller.member_id\n" +
                  "\t, t1.dim_buyer.member_id\n" +
                  "FROM LD_aly.fct_pay_ord_cn_di t1\n" +
                  "CLUSTER BY buyer_id, seller_id", SQLUtils.toSQLString(stmt));
  
          assertEquals(1, statementList.size());
  
          for (SQLSelectOrderByItem item : stmt.getSelect().getQueryBlock().getClusterBy()) {
              assertFalse(item.isSortBy());
              assertFalse(item.isDistributeBy());
              assertTrue(item.isClusterBy());
          }
  
          SchemaStatVisitor visitor = SQLUtils.createSchemaStatVisitor(JdbcConstants.HIVE);
          stmt.accept(visitor);
  
  //        System.out.println("Tables : " + visitor.getTables());
          System.out.println("fields : " + visitor.getColumns());
          System.out.println("coditions : " + visitor.getConditions());
          System.out.println("orderBy : " + visitor.getOrderByColumns());
          System.out.println("groupBy : " + visitor.getGroupByColumns());
  
          assertEquals(1, visitor.getTables().size());
          assertEquals(5, visitor.getColumns().size());
          assertEquals(0, visitor.getConditions().size());
          assertEquals(0, visitor.getGroupByColumns().size());
  
          assertTrue(visitor.containsColumn("LD_aly.fct_pay_ord_cn_di", "buyer_id"));
      }
  }
  