Hi Nikita,
> The External TOAST pointer is very limited to the amount of service data
> it could keep, that's why we introduced the Custom TOAST pointers in the
> Pluggable TOAST. But keep in mind that changing the TOAST pointer
> structure requires a lot of quite heavy modifications in the core - along with
> some obvious places like insert/update/delete datum there is very serious
> issue with logical replication.
> The Pluggable TOAST was rejected, but we have a lot of improvements
> based on changing the TOAST pointer structure.
Now I see what you meant [1]. I agree that we should focus on
refactoring TOAST pointers first. So I suggest we continue discussing
this in a corresponding thread and return to this one later.
[1]: https://www.postgresql.org/message-id/CAJ7c6TPSvR2rKpoVX5TSXo_kMxXF%2B-SxLtrpPaMf907tX%3DnVCw%40mail.gmail.com
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Best regards,
Aleksander Alekseev