Rust

fix: Avoid panicing when stats are not available for a file group spl… #665

Job	Run time
Check cargo fmt	1m 8s
Verify Vendored Code	1m 23s
Verify MSRV (Min Supported Rust Version)	5m 33s
cargo test (macos-aarch64)	7m 23s
build and run with wasm-pack	6m 20s
linux build test	6m 39s
cargo check datafusion features	10m 44s
cargo check datafusion-common features	2m 7s
cargo examples (amd64)	17m 44s
cargo test datafusion-cli (amd64)	5m 35s
cargo check datafusion-proto features	4m 46s
cargo test (amd64)	13m 59s
cargo check datafusion-substrait features	12m 15s
cargo test doc (amd64)	9m 35s
Run sqllogictest with Postgres runner	6m 58s
cargo check datafusion-functions features	2m 47s
Run sqllogictest in Substrait round-trip mode	7m 38s
clippy	7m 49s
check Cargo.toml formatting	3m 21s
cargo doc	5m 35s
check example README is up-to-date	5m 21s
verify benchmark results (amd64)	13m 45s
check configs.md and ***_functions.md is up-to-date	5m 28s
	2h 43m 53s

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