/*
* 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.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 com.alibaba.druid.stat.TableStat;
public class MySqlSelectTest_group_concat_2 extends MysqlTest {
public void test_0() throws Exception {
String sql = "SELECT student_name, " //
+ "GROUP_CONCAT(DISTINCT test_score " //
+ " ORDER BY test_score DESC SEPARATOR ' ') " //
+ "FROM student " //
+ "GROUP BY student_name";
MySqlStatementParser parser = new MySqlStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement stmt = statementList.get(0);
SQLSelectStatement selectStmt = (SQLSelectStatement) stmt;
SQLSelect select = selectStmt.getSelect();
Assert.assertNotNull(select.getQuery());
MySqlSelectQueryBlock queryBlock = (MySqlSelectQueryBlock) select.getQuery();
Assert.assertNull(queryBlock.getOrderBy());
// print(statementList);
Assert.assertEquals(1, statementList.size());
MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
stmt.accept(visitor);
Assert.assertEquals(1, visitor.getTables().size());
Assert.assertEquals(2, visitor.getColumns().size());
Assert.assertEquals(0, visitor.getConditions().size());
Assert.assertEquals(0, visitor.getOrderByColumns().size());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("student")));
String output = SQLUtils.toMySqlString(stmt);
Assert.assertEquals("SELECT student_name, GROUP_CONCAT(DISTINCT test_score ORDER BY test_score DESC SEPARATOR ' ')" //
+ "\nFROM student" //
+ "\nGROUP BY student_name", //
output);
}
}