It looks like to be a data corruption case a few cases like this have
been discussed in the past as well. The following link -->
http://archives.postgresql.org/pgsql-general/2006-12/msg01546.php might help
you resolve the problem.
--
Shoaib Mir
EnterpriseDB (www.enterprisedb.com)
I am starting to have some significant problems with one of my
8.1.3databases. I am getting more and more of these errors:
wbd,20552,dholton,2007-01-31 15:32:27.137 EST,45c0fcb4.5048,16,2007-01-31
15:31:48 EST,342126177,UPDATE,ERROR: could not access status of transaction
253762136
wbd,20552,dho