Hi Matthias,
> > Although there is also a high-level idea (according to the
> > presentations) to share common data between different TOASTed values,
> > similarly to what compression dictionaries do, by looking at the
> > current feedback and considering the overall complexity and the amount
> > of open questions (e.g. interaction with different TableAMs, etc), I
> > seriously doubt that this particular part of "pluggable TOASTer" will
> > end-up in the core.
>
> Yes, and that's why I think that this where this dictionary
> infrastructure could provide value, as an alternative or extension to
> the proposed jsonb toaster in the 'pluggable toaster' thread.
OK, I see your point now. And I think this is a very good point.
Basing "Compression dictionaries" on the API provided by "pluggable
TOASTer" can also be less hacky than what I'm currently doing with
`typmod` argument. I'm going to switch the implementation at some
point, unless anyone will object to the idea.
--
Best regards,
Aleksander Alekseev