| From: | Aleksander Alekseev <aleksander(at)timescale(dot)com> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Cc: | Nikhil Kumar Veldanda <veldanda(dot)nikhilkumar17(at)gmail(dot)com> |
| Subject: | Re: ZStandard (with dictionaries) compression support for TOAST compression |
| Date: | 2025-03-06 13:35:16 |
| Message-ID: | CAJ7c6TOz_1gH4ekPaMcfKtYxG86wUvvmU-_RRHrh=zNRcB+Gdw@mail.gmail.com |
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| Lists: | pgsql-hackers |
Hi Nikhil,
Many thanks for working on this. I proposed a similar patch some time
ago [1] but the overall feedback was somewhat mixed so I choose to
focus on something else. Thanks for peeking this up.
> test=# select build_zstd_dict_for_attribute('"public"."zstd"', 1);
> build_zstd_dict_for_attribute
> -------------------------------
> t
> (1 row)
Did you have a chance to familiarize yourself with the corresponding
discussion [1] and probably the previous threads? Particularly it was
pointed out that dictionaries should be built automatically during
VACUUM. We also discussed a special syntax for the feature, besides
other things.
--
Best regards,
Aleksander Alekseev
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