Apologies - I should have said output of 'VACUUM VERBOSE mytable'.
(been using 8.1, which displays dead tuple info in ANALYZE...).
Mark
Yves Vindevogel wrote:
rvponp=# analyze verbose tblPrintjobs ;
INFO: analyzing "public.tblprintjobs"
INFO: "tblprintjobs": 19076 pages, 3000 rows sampled, 588209 estimated
total rows
ANALYZE
On 13 Jun 2005, at 04:43, Mark Kirkwood wrote:
Yves Vindevogel wrote:
I'm trying to update a table that has about 600.000 records.
The update query is very simple : update mytable set pagesdesc =
- pages ;
The query takes about half an hour to an hour to execute. I have
tried a lot of things.
Half an hour seem a bit long - I would expect less than 5 minutes on
reasonable hardware.
You may have dead tuple bloat - can you post the output of 'ANALYZE
VERBOSE mytable' ?
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TIP 8: explain analyze is your friend
