Describe the bug
when parse a page sql with CCJSqlParserUtil, encounter a ParseException, but the sql is right which can run in my pgSQL

To Reproduce
Steps to reproduce the behavior:

1. Example SQL:
   select s.* from camera s where s.index_code = '12' limit 10 offset (5 - 1) * 10
2. Parsing this SQL using JSqlParser with this statements:
   CCJSqlParserUtil.parse(sql);
3. Exception:
   net.sf.jsqlparser.parser.ParseException: Encountered " "(" "( "" at line 1, column 77.
   Was expecting one of:
   <S_LONG> ...
   "?" ...

Expected behavior
A clear and concise description of what you expected to happen.

util will work when I replace (5 - 1) * 10 in offset with 40, but it should work use this expression

System

• Database you are using pgSQL
• Java Version java 8
• JSqlParser version 3.1