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.DbType;
  import com.alibaba.druid.sql.MysqlTest;
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
  
  public class MySqlSelectTest_249 extends MysqlTest {
      public void test_0() throws Exception {
          String sql = "select CAST(t.a AS ROW(v1 varchar, v2 varchar)) from ( select t.a from (     select cast(json_extract('{\"x\":[{\"a\":1,\"b\":2},{\"a\":3,\"b\":4}]}', '$.x') as array<JSON>) as package_array ) CROSS JOIN unnest(package_array) AS t(a) )";
  
          SQLSelectStatement stmt = (SQLSelectStatement) SQLUtils.parseSingleStatement(sql, DbType.mysql);
  
          assertEquals("SELECT CAST(t.a AS ROW(v1 varchar,v2 varchar))\n" +
                  "FROM (\n" +
                  "\tSELECT t.a\n" +
                  "\tFROM (\n" +
                  "\t\tSELECT CAST(json_extract('{\"x\":[{\"a\":1,\"b\":2},{\"a\":3,\"b\":4}]}', '$.x') AS ARRAY<JSON>) AS package_array\n" +
                  "\t)\n" +
                  "\t\tCROSS JOIN UNNEST(package_array) AS t (a)\n" +
                  ")", stmt.toString());
      }
  }
  