nction("pi", new NoArgSQLFunction("pi", Hibernate.DOUBLE) );
     registerFunction("rand", new NoArgSQLFunction("rand", Hibernate.DOUBLE) );
     registerFunction("sin", new StandardSQLFunction("sin", Hibernate.DOUBLE) );
     registerFunction("sqrt", new StandardSQLFunction("sqrt", Hibernate.DOUBLE) );
     registerFunction("tan", new StandardSQLFunction("tan", Hibernate.DOUBLE) );
    
     registerFunction("radians", new StandardSQLFunction("radians", Hibernate.DOUBLE) );
     registerFunction("degrees", new StandardSQLFunction("degrees", Hibernate.DOUBLE) );
    
     registerFunction("ceiling", new StandardSQLFunction("ceiling", Hibernate.INTEGER) );
     registerFunction("ceil", new StandardSQLFunction("ceil", Hibernate.INTEGER) );
     registerFunction("floor", new StandardSQLFunction("floor", Hibernate.INTEGER) );
     registerFunction("round", new StandardSQLFunction("round", Hibernate.INTEGER) );
    
     registerFunction("datediff", new StandardSQLFunction("datediff", Hibernate.INTEGER) );
     registerFunction("timediff", new StandardSQLFunction("timediff", Hibernate.TIME) );
     registerFunction("date_format", new StandardSQLFunction("date_format", Hibernate.STRING) );
    
     registerFunction("curdate", new NoArgSQLFunction("curdate", Hibernate.DATE) );
     registerFunction("curtime", new NoArgSQLFunction("curtime", Hibernate.TIME) );
     registerFunction("current_date", new NoArgSQLFunction("current_date", Hibernate.DATE, false) );
     registerFunction("current_time", new NoArgSQLFunction("current_time", Hibernate.TIME, false) );
     registerFunction("current_timestamp", new NoArgSQLFunction("current_timestamp", Hibernate.TIMESTAMP, false) );
     registerFunction("date", new StandardSQLFunction("date", Hibernate.DATE) );
     registerFunction("day", new StandardSQLFunction("day", Hibernate.INTEGER) );
     registerFunction("dayofmonth", new StandardSQLFunction("dayofmonth", Hibernate.INTEGER) );
     registerFunction("dayname", new StandardSQLFunction("dayname", Hibernate.STRING) );
     registerFunction("dayofweek", new StandardSQLFunction("dayofweek", Hibernate.INTEGER) );
     registerFunction("dayofyear", new StandardSQLFunction("dayofyear", Hibernate.INTEGER) );
     registerFunction("from_days", new StandardSQLFunction("from_days", Hibernate.DATE) );
     registerFunction("from_unixtime", new StandardSQLFunction("from_unixtime", Hibernate.TIMESTAMP) );
     registerFunction("hour", new StandardSQLFunction("hour", Hibernate.INTEGER) );
     registerFunction("last_day", new StandardSQLFunction("last_day", Hibernate.DATE) );
     registerFunction("localtime", new NoArgSQLFunction("localtime", Hibernate.TIMESTAMP) );
     registerFunction("localtimestamp", new NoArgSQLFunction("localtimestamp", Hibernate.TIMESTAMP) );
     registerFunction("microseconds", new StandardSQLFunction("microseconds", Hibernate.INTEGER) );
     registerFunction("minute", new StandardSQLFunction("minute", Hibernate.INTEGER) );
     registerFunction("month", new StandardSQLFunction("month", Hibernate.INTEGER) );
     registerFunction("monthname", new StandardSQLFunction("monthname", Hibernate.STRING) );
     registerFunction("now", new NoArgSQLFunction("now", Hibernate.TIMESTAMP) );
     registerFunction("quarter", new StandardSQLFunction("quarter", Hibernate.INTEGER) );
     registerFunction("second", new StandardSQLFunction("second", Hibernate.INTEGER) );
     registerFunction("sec_to_time", new StandardSQLFunction("sec_to_time", Hibernate.TIME) );
     registerFunction("sysdate", new NoArgSQLFunction("sysdate", Hibernate.TIMESTAMP) );
     registerFunction("time", new StandardSQLFunction("time", Hibernate.TIME) );
     registerFunction("timestamp", new StandardSQLFunction("timestamp", Hibernate.TIMESTAMP) );
     registerFunction("time_to_sec", new StandardSQLFunction("time_to_sec", Hibernate.INTEGER) );
     registerFunction("to_days", new StandardSQLFunction("to_days", Hibernate.LONG) );
     registerFunction("unix_timestamp", new StandardSQLFunction("unix_timestamp", Hibernate.LONG) );
     registerFunction("utc_date", new NoArgSQLFunction("utc_date", Hibernate.STRING) );
     registerFunction("utc_time", new NoArgSQLFunction("utc_time", Hibernate.STRING) );
     registerFunction("utc_timestamp", new NoArgSQLFunction("utc_timestamp", Hibernate.STRING)