Klaus Aschenbrenner @sqlpassion.at · Jan 29 Having some "fun" with low-level programming against #PostgreSQL: written a custom asynchronous query firewall (with the tokio crate) in #Rust that intercepts incoming PostgreSQL queries, and only forwards them to the real PostgreSQL cluster, if they are not on a denied list.
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I have already learned a lot about the Simple and Extended Query Protocol in #PostgreSQL. The approach even works with traditional query tools like DBeaver.