Looping through cursor row batches

["Henry Combrinck" <henry@xxxxxxxxx>]

Greetings,

I gather the following isn't possible (which would have been elegant  
and ideal):

FOR rec IN
  FETCH 100000 FROM cursor
LOOP
  ...


Anyone know the most efficient way of FETCHing a batch of rows, and  
looping through them in a function?  FETCHing a record at a time will  
work, but I was wondering whether this could be done.

Cheers
Henry