Robert Haas <robertmhaas@gmail.com> writes:
> On Wed, Mar 24, 2021 at 2:15 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> But let's ignore the case of pg_upgrade and just consider a dump/restore.
>> I'd still say that unless you give --no-toast-compression then I would
>> expect the dump/restore to preserve the tables' old compression behavior.
>> Robert's argument that the pre-v14 database had no particular compression
>> behavior seems nonsensical to me. We know exactly which compression
>> behavior it has.
> I said that it didn't have a state, not that it didn't have a
> behavior. That's not exactly the same thing. But I don't want to argue
> about it, either. It's a judgement call what's best here, and I don't
> pretend to have all the answers. If you're sure you've got it right
> ... great!
I've not heard any other comments about this, but I'm pretty sure that
preserving a table's old toast behavior is in line with what we'd normally
expect pg_dump to do --- especially in light of the fact that we did not
provide any --preserve-toast-compression switch to tell it to do so.
So I'm going to go change it.
regards, tom lane