creating a dump

Hello,

I try to dump my databases using pg_dumpall or pg_dump and I get the following error:

\connect bic postgres
getAggregates(): SELECT failed.  Explanation from backend: 'ERROR:  Attribute 'aggtransfn1' not found
'.
pg_dump failed on bic, exiting


I tried to fiddle around with the privileges, granted public access to the database to no avail.

Any clues why this happens?

BTW, I would like a cron job to periodically dump out the data in a restorable form.

Best Regards,

Hegyvari Krisztian