/*
* Copyright 1999-2011 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.postgresql;
import java.util.List;
import org.junit.Assert;
import com.alibaba.druid.sql.PGTest;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.postgresql.parser.PGSQLStatementParser;
import com.alibaba.druid.sql.dialect.postgresql.visitor.PGSchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;
public class TruncateTest extends PGTest {
public void test_0() throws Exception {
String sql = "TRUNCATE bigtable, fattable;";
PGSQLStatementParser parser = new PGSQLStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement statemen = statementList.get(0);
print(statementList);
Assert.assertEquals(1, statementList.size());
PGSchemaStatVisitor visitor = new PGSchemaStatVisitor();
statemen.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("bigtable")));
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("fattable")));
Assert.assertTrue(visitor.getColumns().size() == 0);
}
public void test_1() throws Exception {
String sql = "TRUNCATE bigtable, fattable RESTART IDENTITY;";
PGSQLStatementParser parser = new PGSQLStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement statemen = statementList.get(0);
print(statementList);
Assert.assertEquals(1, statementList.size());
PGSchemaStatVisitor visitor = new PGSchemaStatVisitor();
statemen.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("bigtable")));
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("fattable")));
Assert.assertTrue(visitor.getColumns().size() == 0);
}
public void test_2() throws Exception {
String sql = "TRUNCATE othertable CASCADE;";
PGSQLStatementParser parser = new PGSQLStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement statemen = statementList.get(0);
print(statementList);
Assert.assertEquals(1, statementList.size());
PGSchemaStatVisitor visitor = new PGSchemaStatVisitor();
statemen.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("othertable")));
Assert.assertTrue(visitor.getColumns().size() == 0);
}
}