Stefan Holzheu <stefan.holzheu@bitoek.uni-bayreuth.de> writes:
> Well, I never used a packet sniffer but if anyone tells me what to
> capture, I'd be glad to.
Since we don't know where exactly in the table the error occurs, I think
you'll just have to capture the whole connection traffic between pg_dump
and the backend. You could help keep it to a reasonable size by doing a
selective dump of just one table, viz "pg_dump -t tablename dbname",
although I guess you might have to try a few times to reproduce the
error that way ...
regards, tom lane