Rust

perf: Improve performance of `split_part` #55370

Job	Run time
build and run with wasm-pack	5m 4s
linux build test	3m 26s
Verify MSRV (Min Supported Rust Version)	4m 46s
Check cargo fmt	1m 14s
cargo test (macos-aarch64)	14m 46s
Verify Vendored Code	1m 18s
cargo check datafusion features	10m 57s
cargo check datafusion-functions features	2m 29s
cargo check datafusion-proto features	4m 25s
clippy	3m 55s
cargo check datafusion-common features	1m 53s
Run sqllogictest with Postgres runner	6m 1s
cargo check datafusion-substrait features	10m 14s
cargo test (amd64)	9m 26s
check example README is up-to-date	34s
check configs.md and ***_functions.md is up-to-date	4m 34s
cargo test doc (amd64)	7m 42s
cargo doc	4m 44s
cargo test datafusion-cli (amd64)	4m 8s
cargo examples (amd64)	8m 55s
verify benchmark results (amd64)	9m 41s
Run sqllogictest in Substrait round-trip mode	6m 18s
check Cargo.toml formatting	3m 24s
	2h 9m 54s

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