Re: adding 'zstd' as a compression algorithm

> 15 февр. 2022 г., в 23:20, Robert Haas <robertmhaas@gmail.com> написал(а):
>
> Anyway, those are my thoughts. What are yours?

+1 for adding Zstd everywhere. Quite similar patches are already a part of "libpq compression" and "zstd for pg_dump"
commitfestentries, so pushing this will simplify those entries IMV. 

Also I like the idea of defaulting FPI compression to lz4 and adding Zstd as wal_compression option.
I don't think Zstd is obvious choice for default FPI compression: there are HW setups when disks are almost as fast as
RAM.In this case lz4 can improve performance, while Zstd might make things slower. 

Thanks!

Best regards, Andrey Borodin.