This is impressive - but is a license change, from the PostgresQL license [0] to AGPL [1].

I like the AGPL and think it's the best truly free open source license, but I worry if this is compatible. Ie, if this is rewritten from the original source, should the original apply? (Yes.) There has been a trend to rewrite open source software with a more restrictive license (like coretools in Rust). This looks considerably more ethical by choosing the AGPL - I just wonder, safer with no change at all?

[0] https://www.postgresql.org/about/licence/

[1] https://github.com/malisper/pgrust?tab=AGPL-3.0-1-ov-file