Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> Bruce Momjian wrote:
>> Moving forward, I think you need to add a dummy column to each problem
>> table and drop the column ---- that will create a toast table and allow
>> you to do the upgrade. I could have pg_upgrade detect this problem, but
>> until I know the cause, I don't think that is wise.
> Maybe --check mode could examine both clusters and see whether each
> table having toast table or not matches. That wouldn't solve the actual
> problem but at least give a clue, instead of these very obscure
> problems.
Well, the case of not needing a toast table anymore is expected
(drop a wide column). What we're scratching our heads over is the
other case.
regards, tom lane