The culprit is CLUSTER. There is a batch file which runs CLUSTER
against six, relatively small (60k rows between them) tables at 7am,
1pm, and 9pm. Follows is the list of dates and hours when the
"Permission denied" errors showed up. They match up to a tee (although
the error apparently sometimes persists for a while).
The machine is clean (basically just Windows + Postgres [no AV,
firewall, etc. software]).
Pete
2006-03-20 21
2006-03-21 07
2006-03-22 21
2006-03-23 21
2006-03-23 22
2006-03-24 13
2006-03-24 21
2006-03-24 22
2006-03-26 13
2006-03-27 13
2006-03-27 21
2006-03-27 22
2006-03-28 13
2006-03-28 21
2006-03-29 13
2006-03-29 21
2006-03-30 13
2006-03-30 14
2006-03-30 15
2006-03-30 21
2006-03-30 22
2006-03-31 07
2006-03-31 08
2006-03-31 09
2006-03-31 10
2006-03-31 11
2006-03-31 12
2006-03-31 13
2006-04-03 21
2006-04-04 07
2006-04-05 07
2006-04-05 21
>>> Tom Lane <tgl@sss.pgh.pa.us> 04/13/06 8:30 pm >>>
> The interesting thing is that _none_ of the referenced relfilenode
> numbers actually appear in the file system.
Could they have been temporary tables? Alternatively, if you
routinely
use TRUNCATE, CLUSTER, or REINDEX (all of which assign new relfilenode
numbers), then maybe they were older versions of tables that still
exist.