@Override
 public AnsiSelectBuilder offset(int number) {
   return from(
       grammar,
       selectExpression(
           expression.setQuantifier(),
           expression.selectList(),
           expression.fromClause(),
           expression.whereClause(),
           expression.orderByClause(),
           expression.groupByClause(),
           some(grammar.offsetClause(number)),
           expression.fetchClause()));
 }