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.mysql.select;
  
  import com.alibaba.druid.sql.MysqlTest;
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
  
  public class MySqlSelectTest_234 extends MysqlTest {
      public void test_0() throws Exception {
          String sql = "SELECT ema_user_id\n"
                  + "   FROM(\n"
                  + "         SELECT ema_user_id, 0 as o  \n"
                  + "         FROM g170_user\n"
                  + "         WHERE `account`= '1_30002_35104'  LIMIT 1  \n"
                  + "         union \n"
                  + "         SELECT ema_user_id, 1 as o FROM g170_user  WHERE `g_distinct_id`= ''  LIMIT 1       )  ORDER BY o";
  
          SQLSelectStatement stmt = (SQLSelectStatement) SQLUtils.parseSingleMysqlStatement(sql);
  
          assertEquals("SELECT ema_user_id\n" +
                  "FROM (\n" +
                  "\tSELECT ema_user_id, 0 AS o\n" +
                  "\tFROM g170_user\n" +
                  "\tWHERE `account` = '1_30002_35104'\n" +
                  "\tLIMIT 1\n" +
                  "\tUNION\n" +
                  "\tSELECT ema_user_id, 1 AS o\n" +
                  "\tFROM g170_user\n" +
                  "\tWHERE `g_distinct_id` = ''\n" +
                  "\tLIMIT 1\n" +
                  ")\n" +
                  "ORDER BY o", stmt.toString());
      }
  }
  