"Rich Ryan" <rich@usedcars.com> writes:
> I'm getting errors like the following when I do queries/copies/dumps on
> certain tables.
> ERROR: MemoryContextAlloc: invalid request size 4294967293
A first guess is corrupted data: the length word of some variable-length
field contains garbage. You could probably track down the affected
row(s) by seeing how much you can retrieve without error. See past
discussions of similar problems.
regards, tom lane