diff --git a/src/main/java/com/alibaba/druid/sql/dialect/db2/parser/DB2ExprParser.java b/src/main/java/com/alibaba/druid/sql/dialect/db2/parser/DB2ExprParser.java index 81d7425734..070d5b0fed 100644 --- a/src/main/java/com/alibaba/druid/sql/dialect/db2/parser/DB2ExprParser.java +++ b/src/main/java/com/alibaba/druid/sql/dialect/db2/parser/DB2ExprParser.java @@ -57,6 +57,26 @@ public class DB2ExprParser extends SQLExprParser { return seqExpr; } } + } else if (identifierEquals("DATE")) { + if (expr instanceof SQLIdentifierExpr) { + SQLIdentifierExpr identExpr = (SQLIdentifierExpr) expr; + String ident = identExpr.getName(); + if (ident.equalsIgnoreCase("CURRENT")) { + lexer.nextToken(); + + expr = new SQLIdentifierExpr("CURRENT DATE"); + } + } + } else if (identifierEquals("TIMESTAMP")) { + if (expr instanceof SQLIdentifierExpr) { + SQLIdentifierExpr identExpr = (SQLIdentifierExpr) expr; + String ident = identExpr.getName(); + if (ident.equalsIgnoreCase("CURRENT")) { + lexer.nextToken(); + + expr = new SQLIdentifierExpr("CURRENT DATE"); + } + } } return super.primaryRest(expr); diff --git a/src/test/java/com/alibaba/druid/bvt/sql/db2/DB2SelectTest_23.java b/src/test/java/com/alibaba/druid/bvt/sql/db2/DB2SelectTest_23.java new file mode 100644 index 0000000000..4b1c0447f4 --- /dev/null +++ b/src/test/java/com/alibaba/druid/bvt/sql/db2/DB2SelectTest_23.java @@ -0,0 +1,67 @@ +/* + * Copyright 1999-2101 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 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.util.JdbcConstants; +import org.junit.Assert; + +import java.util.List; + +public class DB2SelectTest_23 extends DB2Test { + + public void test_0() throws Exception { + String sql = "select current date,current timestamp from dual"; + + DB2StatementParser parser = new DB2StatementParser(sql); + List statementList = parser.parseStatementList(); + SQLStatement stmt = statementList.get(0); + System.out.println(SQLUtils.toDB2String(stmt)); + + 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(1, visitor.getTables().size()); + Assert.assertEquals(1, visitor.getColumns().size()); + Assert.assertEquals(0, visitor.getConditions().size()); + + Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("dual"))); + +// Assert.assertTrue(visitor.getColumns().contains(new Column("DSN8B10.EMP", "WORKDEPT"))); + // Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "first_name"))); + // Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "full_name"))); + + Assert.assertEquals("SELECT CURRENT DATE, CURRENT DATE\n" + + "FROM dual", // + SQLUtils.toSQLString(stmt, JdbcConstants.DB2)); + + Assert.assertEquals("select CURRENT DATE, CURRENT DATE\n" + + "from dual", // + SQLUtils.toSQLString(stmt, JdbcConstants.DB2, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION)); + } +}