diff --git a/src/test/java/com/alibaba/druid/bvt/sql/db2/DB2SelectTest_5.java b/src/test/java/com/alibaba/druid/bvt/sql/db2/DB2SelectTest_5.java new file mode 100644 index 0000000000..8fb9c273ed --- /dev/null +++ b/src/test/java/com/alibaba/druid/bvt/sql/db2/DB2SelectTest_5.java @@ -0,0 +1,90 @@ +/* + * 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.db2; + +import java.util.List; + +import org.junit.Assert; + +import com.alibaba.druid.sql.DB2Test; +import com.alibaba.druid.sql.SQLUtils; +import com.alibaba.druid.sql.ast.SQLStatement; +import com.alibaba.druid.sql.dialect.db2.parser.DB2StatementParser; +import com.alibaba.druid.sql.dialect.db2.visitor.DB2SchemaStatVisitor; +import com.alibaba.druid.stat.TableStat; +import com.alibaba.druid.stat.TableStat.Column; +import com.alibaba.druid.util.JdbcConstants; + +public class DB2SelectTest_5 extends DB2Test { + + public void test_0() throws Exception { + String sql = "SELECT * FROM (SELECT TEMP_TAB.*,ROWNUMBER() OVER() AS IDX FROM (SELECT" // + + " DISTINCT ( OH.ORDER_ID )" // + + " FROM" // + + " ORDER_HEADER OH," // + + " ORDER_ITEM OI," // + + " ORDER_PAYMENT_PERFERENCE OPP," // + + " ORDER_SHIPMENT_PERFERENCE OSP" // + + " WHERE" // + + " OH.ORDER_ID = OI.ORDER_ID" // + + " AND OH.ORDER_ID = OPP.ORDER_ID" // + + " AND OH.ORDER_ID = OSP.ORDER_ID" // + + " " // + + " AND OH.ORDER_ID = ? ) AS TEMP_TAB ) AS TEMP_TAB_WITH_IDX "// + + " WHERE TEMP_TAB_WITH_IDX.IDX > 0 AND TEMP_TAB_WITH_IDX.IDX <= 20" // + + ""; + + DB2StatementParser parser = new DB2StatementParser(sql); + List statementList = parser.parseStatementList(); + SQLStatement stmt = statementList.get(0); + print(statementList); + + Assert.assertEquals(1, statementList.size()); + + DB2SchemaStatVisitor visitor = new DB2SchemaStatVisitor(); + 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.assertEquals(4, visitor.getTables().size()); + Assert.assertEquals(4, visitor.getColumns().size()); + Assert.assertEquals(4, visitor.getConditions().size()); + + Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("ORDER_HEADER"))); + + Assert.assertTrue(visitor.getColumns().contains(new Column("ORDER_HEADER", "ORDER_ID"))); + // Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "first_name"))); + // Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "full_name"))); + + String output = SQLUtils.toSQLString(stmt, JdbcConstants.DB2); + Assert.assertEquals("SELECT *"// + + "\nFROM (SELECT TEMP_TAB.*, ROWNUMBER() OVER () AS IDX"// + + "\n\tFROM (SELECT DISTINCT OH.ORDER_ID"// + + "\n\t\tFROM ORDER_HEADER OH, ORDER_ITEM OI, ORDER_PAYMENT_PERFERENCE OPP, ORDER_SHIPMENT_PERFERENCE OSP"// + + "\n\t\tWHERE OH.ORDER_ID = OI.ORDER_ID"// + + "\n\t\t\tAND OH.ORDER_ID = OPP.ORDER_ID"// + + "\n\t\t\tAND OH.ORDER_ID = OSP.ORDER_ID"// + + "\n\t\t\tAND OH.ORDER_ID = ?"// + + "\n\t\t) TEMP_TAB"// + + "\n\t) TEMP_TAB_WITH_IDX"// + + "\nWHERE TEMP_TAB_WITH_IDX.IDX > 0"// + + "\n\tAND TEMP_TAB_WITH_IDX.IDX <= 20", // + output); + } +}