Tom Lane schrieb am 20.02.2019 um 22:04:
>> Hmm. I though TOAST is only applied to single values, not the entire tuple (row)?
>> As each column is substantially shorter than the TOAST threshold, I would not expect toasting to kick in here.
>
> Well, the entire tuple would be 25600 bytes plus some overhead, which
> cannot fit on a Postgres page (8K, unless the OP changed compile options
> without mentioning it). So something has to be done to make it fit, and
> that something is going to be toasting any fields that can be toasted.
Ah, obviously.
Thanks
