Plpgsql get record value without colunm name ???

I have an array passed in paramaters of a method :
arrayOfColunmName


I need to get value of record not like

LOOP ...
var=     record."columnName";
....
END LOOP


But like this :
LOOP
i =i +1;
var = record.arrayOfColunmName[i];
....
END LOOP.


Iit is possible or plpgsql is too limited to do that.

Or record[0][1] .... ????
I know record is like rowtype but I really blocked on this matter.




Helllllllllllllllppppppppppppppppp   !!!!

-- 
Alban Médici
R&D Software Engineer
tel: +33 (0)2 31 46 35 80 (+005)
--------------------------------
http://www.netcentrex.net
amedici@fr.netcentrex.net