/*
* 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.oceanbase;
import com.alibaba.druid.sql.MysqlTest;
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
import com.alibaba.druid.util.JdbcConstants;
import java.util.List;
public class OceanbaseSelectTest extends MysqlTest {
protected final String dbType = JdbcConstants.MYSQL;
public void test_0() throws Exception {
String sql = "SELECT EmpID, EmpName, MgrId, Level FROM emp START WITH MgrId IS NULL CONNECT BY PRIOR EmpId = MgrId"; //
List<SQLStatement> stmtList = SQLUtils.parseStatements(sql, dbType);
SQLStatement stmt = stmtList.get(0);
{
String result = SQLUtils.toSQLString(stmt, dbType);
assertEquals("SELECT EmpID, EmpName, MgrId, Level\n" +
"FROM emp\n" +
"START WITH MgrId IS NULL\n" +
"CONNECT BY PRIOR EmpId = MgrId", result);
}
{
String result = SQLUtils.toSQLString(stmt, dbType, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION);
assertEquals("select EmpID, EmpName, MgrId, Level\n" +
"from emp\n" +
"start with MgrId is null\n" +
"connect by prior EmpId = MgrId", result);
}
assertEquals(1, stmtList.size());
SchemaStatVisitor visitor = SQLUtils.createSchemaStatVisitor(dbType);
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(3, visitor.getColumns().size());
assertEquals(0, visitor.getConditions().size());
// assertTrue(visitor.getTables().containsKey(new TableStat.Name("t_basic_store")));
}
}