Rust

Expand set_metric_names comment #72060

Job	Run time
cargo test (macos-aarch64)	8m 24s
Verify Vendored Code	1m 56s
Check GitHub Actions install tooling	7s
build and run with wasm-pack	6m 59s
linux build test	2m 25s
Check cargo fmt	1m 18s
Verify MSRV (Min Supported Rust Version)	7m 38s
cargo check datafusion-ffi features	1m 29s
cargo check datafusion-common features	2m 7s
cargo check datafusion-proto features	4m 6s
cargo check datafusion-substrait features	7m 52s
cargo check datafusion features	10m 21s
cargo examples (amd64)	5m 27s
cargo test doc (amd64)	7m 5s
Run sqllogictest in Substrait round-trip mode	4m 54s
cargo check datafusion-functions features	2m 53s
check configs.md and ***_functions.md is up-to-date	5m 27s
check example README is up-to-date	6m 19s
cargo test (amd64)	9m 32s
cargo test datafusion-cli (amd64)	3m 30s
check Cargo.toml formatting	1m 22s
clippy	4m 48s
Run sqllogictest with Postgres runner	4m 45s
cargo doc	3m 33s
verify benchmark results (amd64)	9m 51s
	2h 4m 8s

Provide feedback