问使用Postgres查询条件

EN

CREATE TABLE Automobile
(id                          SERIAL               
,name                        VARCHAR(20)        
,year                        INTEGER        
);

    final Criteria criteria = session.createCriteria (Automobile.class);

    criteria.add (Restrictions.eq ("year", 1 ));

    List<Automobile> list = criteria.list();

    java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String

    criteria.add (Restrictions.eq ("year", new String("1")));

    List<Automobile> list = criteria.list();

    org.hibernate.exception.SQLGrammarException: ERROR: operator does not exist: integer = character varying
    Hint: No operator matches the given name and argument type(s). You might need to add explicit type casts.
    Position: 1145