content: /*
   * Copyright 1999-2018 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.db2;
  
  import com.alibaba.druid.sql.DB2Test;
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.ast.SQLStatement;
  import com.alibaba.druid.sql.dialect.db2.parser.DB2StatementParser;
  import com.alibaba.druid.sql.dialect.db2.visitor.DB2SchemaStatVisitor;
  import com.alibaba.druid.stat.TableStat;
  import com.alibaba.druid.stat.TableStat.Column;
  import com.alibaba.druid.util.JdbcConstants;
  
  import java.util.List;
  
  public class DB2SelectTest_22 extends DB2Test {
      public void test_0() throws Exception {
          String sql = "SELECT ID,IDENTITY,BUSICODE"
                  + " FROM BUSINESS_ENTERPRISE_BUSIINFO"
                  + " WHERE SYSCODE= '603'"
                  + " ORDER BY INTIME desc"
                  + " FETCH first 1 rows only";
  
          DB2StatementParser parser = new DB2StatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement stmt = statementList.get(0);
  
          System.out.println(stmt);
  
          assertEquals(1, statementList.size());
  
          DB2SchemaStatVisitor visitor = new DB2SchemaStatVisitor();
          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());
  
          assertEquals(1, visitor.getTables().size());
          assertEquals(5, visitor.getColumns().size());
          assertEquals(1, visitor.getConditions().size());
  
          assertTrue(visitor.getTables().containsKey(new TableStat.Name("BUSINESS_ENTERPRISE_BUSIINFO")));
  
          assertTrue(visitor.getColumns().contains(new Column("BUSINESS_ENTERPRISE_BUSIINFO", "ID")));
          assertTrue(visitor.getColumns().contains(new Column("BUSINESS_ENTERPRISE_BUSIINFO", "IDENTITY")));
          assertTrue(visitor.getColumns().contains(new Column("BUSINESS_ENTERPRISE_BUSIINFO", "BUSICODE")));
          assertTrue(visitor.getColumns().contains(new Column("BUSINESS_ENTERPRISE_BUSIINFO", "SYSCODE")));
          assertTrue(visitor.getColumns().contains(new Column("BUSINESS_ENTERPRISE_BUSIINFO", "INTIME")));
          // assertTrue(visitor.getColumns().contains(new Column("mytable", "first_name")));
          // assertTrue(visitor.getColumns().contains(new Column("mytable", "full_name")));
  
          assertEquals("SELECT ID, IDENTITY, BUSICODE"
                          + "\nFROM BUSINESS_ENTERPRISE_BUSIINFO"
                          + "\nWHERE SYSCODE = '603'"
                          + "\nORDER BY INTIME DESC"
                          + "\nFETCH FIRST 1 ROWS ONLY", //
                  SQLUtils.toSQLString(stmt, JdbcConstants.DB2));
  
          assertEquals("select ID, IDENTITY, BUSICODE"
                          + "\nfrom BUSINESS_ENTERPRISE_BUSIINFO"
                          + "\nwhere SYSCODE = '603'"
                          + "\norder by INTIME desc"
                          + "\nfetch first 1 rows only", //
                  SQLUtils.toSQLString(stmt, JdbcConstants.DB2, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION));
      }
  }
  