daveg <daveg@sonic.net> writes:
> Summary: the failing process reads 0 rows from 0 blocks from the OLD
> relfilenode.
Hmm. This seems to mean that we're somehow missing a relation mapping
invalidation message, or perhaps not processing it soon enough during
some complex set of invalidations. I did some testing with that in mind
but couldn't reproduce the failure. It'd be awfully nice to get a look
at the call stack when this happens for you ... what OS are you running?
regards, tom lane