fixes #128

Author: wumpz

src/main/javacc/net/sf/jsqlparser/parser/JSqlParserCC.jj

@@ -538,7 +538,7 @@ String RelObjectName():
       | tk=<K_LAST> | tk=<K_MATERIALIZED> | tk=<K_NULLS> | tk=<K_PARTITION> | tk=<K_RANGE> 
       | tk=<K_ROW> | tk=<K_ROWS> | tk=<K_SIBLINGS> | tk=<K_VALUE> | tk=<K_XML>
       | 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_OPEN> | tk=<K_OVER> | tk=<K_VALUES> | tk=<K_PERCENT>
       )
 
     { return tk.image; }

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

@@ -1720,4 +1720,9 @@ public void testSelectWithBrackets() throws JSQLParserException {
     public void testSelectWithBrackets2() throws JSQLParserException {
         assertSqlCanBeParsedAndDeparsed("(SELECT 1)");
     }
+    
+    public void testSelectKeywordPercent() throws JSQLParserException {
+        assertSqlCanBeParsedAndDeparsed("SELECT percent FROM MY_TABLE");
+    }
+    
 }