Use slices instead of Vectors

[nyovaya]

No description provided.

[nyovaya]

How do I format it with the projects coding style? cargo fmt seems to use my own preset.

[sanpii]

How do I format it with the projects coding style? cargo fmt seems to use my own preset.

I use the default configurarion, normally nothing special. Maybe you have a global configuration (in a parent directory) ?

[nyovaya]

I doubt the valgrind error is caused by my changes 🤔

[sanpii]

I doubt the valgrind error is caused by my changes 🤔

You probably right, on my PC, the result is almost the same.

[nyovaya]

Is something missing here? @sanpii

[sanpii]

I fixed the CI, can you base your PR on my main branch?

I also tried to understand the complicated syntax for param_values in examples/testlibpq3.rs.

Maybe this form is clearer:

let param_values = [Some(b"joe's place\0".as_ref())];

In any cases, a vector is useless here.

[sanpii]

Please rebase, don't merge.