/*
* 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.oracle;
import java.util.List;
import org.junit.Assert;
import com.alibaba.druid.sql.OracleTest;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;
public class OracleExplainTest extends OracleTest {
public void test_0() throws Exception {
String sql = //
"EXPLAIN PLAN SET STATEMENT_ID='PLUS19628905' FOR select * from( select row_.*, rownum rownum_ from( SELECT h.id taskId, t.id tradeId, t.OUT_ORDER_ID orderId, t.SELLER_SEQ sellerSeq, t.BUYER_SEQ buyerSeq, h.RECORD_TYPE recordType, t.SELLER_LOGIN_ID sellerLoginId, t.SELLER_ADMIN_SEQ sellerAdminSeq, h.GMT_CREATE gmtTaskCreate, h.GMT_MODIFIED gmtTaskModified, h.GMT_FETCH_TASK gmtFetchTask, h.GMT_FINISH_TASK gmtFinishTask, h.STATUS status, h.OWNER owner FROM HT_TASK_TRADE_HISTORY h, escrow_trade t WHERE h.TRADE_ID= t.ID and h.OWNER='zhoufei.zhangzf' and h.STATUS in('running') ORDER BY h.TASK_FLOW_LEVEL, t.GMT_CREATE, h.GMT_MODIFIED DESC) row_ where rownum<= 100) where rownum_>= 80";
OracleStatementParser parser = new OracleStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement statemen = statementList.get(0);
print(statementList);
Assert.assertEquals(1, statementList.size());
OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
statemen.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
System.out.println("coditions : " + visitor.getConditions());
System.out.println("relationships : " + visitor.getRelationships());
System.out.println("orderBy : " + visitor.getOrderByColumns());
Assert.assertEquals(0, visitor.getTables().size());
// Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("\"DUAL\"")));
Assert.assertEquals(0, visitor.getColumns().size());
// Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "*")));
// Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "YEAR")));
// Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "order_mode")));
}
}