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.SQLStatement;
  import com.alibaba.druid.sql.ast.statement.SQLSelect;
  import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
  import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock;
  import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
  import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
  
  import java.util.List;
  
  public class MySqlSelectTest_184 extends MysqlTest {
      public void test_0() throws Exception {
          String sql = "SELECT \"B\".\"col_new\" FROM \"wenyu_meta_test\".\"WENBO6_CONFIG_TEST\" AS \"a\", \"wenyu_meta_test\".\"WENYU_CONFIG_TEST\" AS \"b\" WHERE \"A\".\"cid\" = \"B\".\"cid\" AND \"A\".\"cname\" = \"B\".\"cname\" LIMIT 4";
  
          MySqlStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement stmt = statementList.get(0);
  
          SQLSelectStatement selectStmt = (SQLSelectStatement) stmt;
  
          SQLSelect select = selectStmt.getSelect();
          assertNotNull(select.getQuery());
          MySqlSelectQueryBlock queryBlock = (MySqlSelectQueryBlock) select.getQuery();
          assertNull(queryBlock.getOrderBy());
  
  //        print(statementList);
  
          assertEquals(1, statementList.size());
  
          MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
          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(2, visitor.getTables().size());
          assertEquals(5, visitor.getColumns().size());
          assertEquals(4, visitor.getConditions().size());
          assertEquals(0, visitor.getOrderByColumns().size());
  
          assertTrue(visitor.containsTable("wenyu_meta_test.WENBO6_CONFIG_TEST"));
          assertTrue(visitor.containsTable("wenyu_meta_test.WENYU_CONFIG_TEST"));
          assertTrue(visitor.containsColumn("wenyu_meta_test.WENYU_CONFIG_TEST", "cid"));
  
          String output = SQLUtils.toMySqlString(stmt);
          assertEquals(
              "SELECT \"B\".\"col_new\"\n"
                  + "FROM \"wenyu_meta_test\".\"WENBO6_CONFIG_TEST\" \"a\", \"wenyu_meta_test\".\"WENYU_CONFIG_TEST\" \"b\"\n"
                  + "WHERE A.\"cid\" = B.\"cid\"\n"
                  + "\tAND A.\"cname\" = B.\"cname\"\n"
                  + "LIMIT 4", //
              output);
      }
  
      public void test_1() throws Exception {
          String sql = "SELECT * FROM \"wenyu_meta_test\".\"WENYU_META_TEST_02\" LIMIT 4";
  
          MySqlStatementParser parser = new MySqlStatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement stmt = statementList.get(0);
  
          SQLSelectStatement selectStmt = (SQLSelectStatement) stmt;
  
          SQLSelect select = selectStmt.getSelect();
          assertNotNull(select.getQuery());
          MySqlSelectQueryBlock queryBlock = (MySqlSelectQueryBlock) select.getQuery();
          assertNull(queryBlock.getOrderBy());
  
  //        print(statementList);
  
          assertEquals(1, statementList.size());
  
          MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
          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(1, visitor.getColumns().size());
          assertEquals(0, visitor.getConditions().size());
          assertEquals(0, visitor.getOrderByColumns().size());
  
          assertTrue(visitor.containsTable("wenyu_meta_test.WENYU_META_TEST_02"));
          assertTrue(visitor.containsColumn("wenyu_meta_test.WENYU_META_TEST_02", "*"));
  
          String output = SQLUtils.toMySqlString(stmt);
          assertEquals("SELECT *\n" +
                          "FROM \"wenyu_meta_test\".\"WENYU_META_TEST_02\"\n" +
                          "LIMIT 4", //
                  output);
  
          assertEquals("wenyu_meta_test.WENYU_META_TEST_02", visitor.getTables().keySet().iterator().next().getName());
          assertEquals("wenyu_meta_test.WENYU_META_TEST_02", visitor.getColumns().iterator().next().getTable());
      }
  }
  