> Very clear. The issue is that I can't find any of these emitted by a
> pg_dump version who's native backend doesn't understand them.
>
> I assume that it is expected that a cross-db dump/reload will generate
> errors, and it is done rarely for upgrades, but I assume same-version
> dump/restore is done more frequently and people don't expect errors.
> Is that not a significant distinction?
I thought the suggested procedure (see migration doc) was to use the
new pg_dump to dump the older db version, so why backpatch ?
Andreas