fixes #614

Author: wumpz

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

@@ -2504,13 +2504,13 @@ Expression PrimaryExpression() #PrimaryExpression:
     | retval = IntervalExpression()
 )
 
-[ "::" type=ColDataType() {
+    ( "::" type=ColDataType() {
         castExpr = new CastExpression();
         castExpr.setUseCastKeyword(false);
         castExpr.setLeftExpression(retval);
         castExpr.setType(type);
         retval=castExpr;
-} ]
+    } )*
 
     {
         if (sign != null) {

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

@@ -3161,4 +3161,9 @@ public void testProblemSqlFuncParamIssue605_2() throws JSQLParserException {
     public void testSqlContainIsNullFunctionShouldBeParsed() throws JSQLParserException {
         assertSqlCanBeParsedAndDeparsed("SELECT name, age, ISNULL(home, 'earn more money') FROM person");
     }
+    
+    @Test
+    public void testNestedCast() throws JSQLParserException {
+        assertSqlCanBeParsedAndDeparsed("SELECT acolumn::bit (64)::bigint FROM mytable");
+    }
 }