Re: [PATCH] Compression dictionaries for JSONB

Hi,

I think I should open a new thread related to TOAST pointer refactoring

based on Pluggable TOAST, COPY and looping in retrieving new TOAST

value OID issues.

On Wed, Apr 26, 2023 at 4:00 PM Aleksander Alekseev <aleksander@timescale.com> wrote:

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

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Regards,

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Nikita Malakhov

Postgres Professional

The Russian Postgres Company

https://postgrespro.ru/