This is just to report success: I dropped all indices and repeated:
UPDATE intwfs SET id = nextval('myseq');
and it worked fine - took 3681 secs (my estimate of an hour wasn't far
out). Now doing a VACUUM FULL to remove the old tuples.
--
Clive Page
Dept of Physics & Astronomy,
University of Leicester, Tel +44 116 252 3551
Leicester, LE1 7RH, U.K. Fax +44 116 252 3311