Hi,

Happy new year 👍

After having installed per the instructions (https://postgresml.org/docs/resources/developer-docs/installation) I ran into this:

Error

error[E0412]: cannot find type _Tp in this scope
<full_path>/postgresml/pgml-extension/target/debug/build/xgboost-sys-fa51aa703434d75f/out/bindings.rs:452:27

Offending lines (line 452 mentioned in the error is 'pub static std_value: _Tp;'):

pub type std_integral_constant_value_type<_Tp> = _Tp;
pub type std_integral_constant_type = u8;
extern "C" {
    #[link_name = "\u{1}value"]
    pub static std_value: _Tp;
}

Amendments

I had to amend the installation instructions as follows:

change 'cargo-pgrx --version 0.9.8' to ' cargo install cargo-pgrx --version 0.11.2' (toml mentions 0.11.2 not 0.9.8)
git submodule update --init --recursive (to get linfa dependencies)

I'm a bit 'rusty' on 'Rust' so I have no idea on how to proceed ...