/*
* 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 java.util.List;
import org.junit.Assert;
import com.alibaba.druid.sql.MysqlTest;
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
import com.alibaba.druid.stat.TableStat.Column;
public class MySqlSelectTest_20 extends MysqlTest {
public void test_0() throws Exception {
String sql = "select bsvariety, max(bsh) as bsh, min(bsl) as bsl "
+ " from exchange_market_info "
+ " where bsdate>date_sub(now(),interval 1 day)"
+ " group by bsvariety desc;";
MySqlStatementParser parser = new MySqlStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement stmt = statementList.get(0);
// print(statementList);
Assert.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());
Assert.assertTrue(visitor.getColumns().contains(new Column("exchange_market_info", "bsvariety")));
Assert.assertTrue(visitor.getColumns().contains(new Column("exchange_market_info", "bsh")));
Assert.assertTrue(visitor.getColumns().contains(new Column("exchange_market_info", "bsl")));
Assert.assertTrue(visitor.getColumns().contains(new Column("exchange_market_info", "bsdate")));
Assert.assertEquals(1, visitor.getTables().size());
Assert.assertEquals(4, visitor.getColumns().size());
Assert.assertEquals(1, visitor.getConditions().size());
Assert.assertEquals(0, visitor.getOrderByColumns().size());
String output = SQLUtils.toMySqlString(stmt);
Assert.assertEquals("SELECT bsvariety, MAX(bsh) AS bsh, MIN(bsl) AS bsl"
+ "\nFROM exchange_market_info"
+ "\nWHERE bsdate > date_sub(now(), INTERVAL 1 DAY)"
+ "\nGROUP BY bsvariety DESC", output);
}
}