fixes #278

src/main/java/net/sf/jsqlparser/expression/DateTimeLiteralExpression.java

@@ -0,0 +1,79 @@
+/*
+ * #%L
+ * JSQLParser library
+ * %%
+ * Copyright (C) 2004 - 2016 JSQLParser
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 2.1 of the
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Lesser Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Lesser Public
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ * #L%
+ */
+/*
+ * Copyright (C) 2016 JSQLParser.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301  USA
+ */
+package net.sf.jsqlparser.expression;
+
+/**
+ *
+ * @author toben
+ */
+public class DateTimeLiteralExpression implements Expression {
+    private String value;
+    private DateTime type;
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+
+    public DateTime getType() {
+        return type;
+    }
+
+    public void setType(DateTime type) {
+        this.type = type;
+    }
+
+    @Override
+    public void accept(ExpressionVisitor expressionVisitor) {
+        expressionVisitor.visit(this);
+    }
+
+    @Override
+    public String toString() {
+        return type.name() + " " + value;
+    }
+
+    public static enum DateTime {
+        DATE, TIME, TIMESTAMP;
+    }
+}

src/main/java/net/sf/jsqlparser/expression/ExpressionVisitor.java

@@ -167,4 +167,6 @@ public interface ExpressionVisitor {
 
     void visit(TimeKeyExpression timeKeyExpression);
 
+    void visit(DateTimeLiteralExpression literal);
+
 }

src/main/java/net/sf/jsqlparser/expression/ExpressionVisitorAdapter.java

@@ -461,4 +461,9 @@ public void visit(TimeKeyExpression timeKeyExpression) {
 
     }
 
+    @Override
+    public void visit(DateTimeLiteralExpression literal) {
+
+    }
+
 }

src/main/java/net/sf/jsqlparser/util/TablesNamesFinder.java

@@ -658,4 +658,9 @@ public void visit(AlterView alterView) {
     @Override
     public void visit(TimeKeyExpression timeKeyExpression) {
     }
+
+    @Override
+    public void visit(DateTimeLiteralExpression literal) {
+
+    }
 }

src/main/java/net/sf/jsqlparser/util/deparser/ExpressionDeParser.java

@@ -581,4 +581,9 @@ public void visit(TimeKeyExpression timeKeyExpression) {
         buffer.append(timeKeyExpression.toString());
     }
 
+    @Override
+    public void visit(DateTimeLiteralExpression literal) {
+        buffer.append(literal.toString());
+    }
+
 }

src/main/jjtree/net/sf/jsqlparser/parser/JSqlParserCC.jjt

@@ -234,6 +234,7 @@ TOKEN: /* SQL Keywords. prefixed with K_ to avoid name clashes */
 |	<K_HIGH_PRIORITY : "HIGH_PRIORITY">
 |	<K_IGNORE : "IGNORE">
 |   <K_SEMI : "SEMI">
+|   <K_DATETIMELITERAL : ("DATE" | "TIME" | "TIMESTAMP") >
 |   <K_TIME_KEY_EXPR : ( "CURRENT_TIMESTAMP" | "CURRENT_TIME" | "CURRENT_DATE" ) ( "()" )?>
 }
 
@@ -688,7 +689,7 @@ String RelObjectName() :
       | tk=<K_COLUMN> | tk=<K_REPLACE> | tk=<K_TRUNCATE> | tk=<K_KEY> | tk=<K_ANY>
       | tk=<K_OPEN> | tk=<K_OVER> | tk=<K_VALUES> | tk=<K_PERCENT> | tk=<K_PRIOR>
 	  | tk=<K_SEPARATOR> | tk=<K_NO> | tk=<K_ACTION> | tk=<K_CASCADE> | tk=<K_END>
-      | tk=<K_TABLE>
+      | tk=<K_TABLE> | tk=<K_DATETIMELITERAL>
       )
 
     { return tk.image; }
@@ -2075,6 +2076,8 @@ Expression PrimaryExpression():
     // support timestamp expressions
 	| token=<K_TIME_KEY_EXPR> { retval = new TimeKeyExpression(token.image); }
 
+    | LOOKAHEAD(2) retval=DateTimeLiteralExpression()
+
 	| LOOKAHEAD(["+" | "-"] Column())         [sign="+" | sign="-"] retval=Column()
 
 	| LOOKAHEAD(["+" | "-"] "(" BitwiseAndOr() ")") [sign="+" | sign="-"] "(" retval=BitwiseAndOr() ")" {retval = new Parenthesis(retval); }
@@ -2083,7 +2086,6 @@ Expression PrimaryExpression():
 
 	| token=<S_CHAR_LITERAL> { retval = new StringValue(token.image); }
 
-
 	| "{d" token=<S_CHAR_LITERAL> "}"  { retval = new DateValue(token.image); }
 
 	| "{t" token=<S_CHAR_LITERAL> "}"  { retval = new TimeValue(token.image); }
@@ -2145,6 +2147,15 @@ NumericBind NumericBind() : {
     }
 }
 
+DateTimeLiteralExpression DateTimeLiteralExpression() : {
+    DateTimeLiteralExpression expr = new DateTimeLiteralExpression();
+    Token t;
+} {
+    t=<K_DATETIMELITERAL>  { expr.setType(DateTimeLiteralExpression.DateTime.valueOf(t.image.toUpperCase())); }
+
+    t=<S_CHAR_LITERAL> { expr.setValue(t.image); return expr; }
+}
+
 JsonExpression JsonExpression() : {
   JsonExpression result = new JsonExpression();
   Column column;
@@ -2740,7 +2751,7 @@ ColDataType ColDataType():
 }
 {
 	( tk=<K_CHARACTER> [tk2=<K_VARYING>] { colDataType.setDataType(tk.image + (tk2!=null?" " + tk2.image:"")); }
-	| tk=<S_IDENTIFIER> { colDataType.setDataType(tk.image); } )
+	| ( tk=<S_IDENTIFIER> | tk=<K_DATETIMELITERAL> ) { colDataType.setDataType(tk.image); } )
 
 	[LOOKAHEAD(2) "(" ( (tk=<S_LONG> | tk=<S_CHAR_LITERAL> | tk=<S_IDENTIFIER>) { argumentsStringList.add(tk.image); } ["," {/*argumentsStringList.add(",");*/}] )*    ")"]
     [( "[" {tk=null;} [ tk=<S_LONG> ] { array.add(tk!=null?Integer.valueOf(tk.image):null); } "]" )+ { colDataType.setArrayData(array); } ]

src/test/java/net/sf/jsqlparser/test/select/SelectTest.java

@@ -2199,4 +2199,8 @@ public void testTopExpressionIssue243_2() throws JSQLParserException {
     public void testFunctionIssue284() throws JSQLParserException {
         assertSqlCanBeParsedAndDeparsed("SELECT NVL((SELECT 1 FROM DUAL), 1) AS A FROM TEST1");
     }
+
+    public void testFunctionDateTimeValues() throws JSQLParserException {
+        assertSqlCanBeParsedAndDeparsed("SELECT * FROM tab1 WHERE a > TIMESTAMP '2004-04-30 04:05:34.56'");
+    }
 }