Rust

Add support for nested types to nullif. (#21764) #532

Job	Run time
cargo test (macos-aarch64)	17m 29s
Verify Vendored Code	1m 38s
linux build test	6m 4s
build and run with wasm-pack	5m 16s
Check cargo fmt	1m 4s
Verify MSRV (Min Supported Rust Version)	4m 52s
cargo check datafusion-substrait features	10m 54s
cargo check datafusion-proto features	4m 41s
cargo check datafusion-functions features	2m 36s
cargo test (amd64)	14m 37s
cargo check datafusion features	11m 0s
cargo check datafusion-common features	2m 4s
cargo examples (amd64)	16m 6s
cargo test datafusion-cli (amd64)	5m 54s
cargo doc	4m 48s
Run sqllogictest with Postgres runner	8m 30s
Run sqllogictest in Substrait round-trip mode	7m 16s
clippy	7m 34s
verify benchmark results (amd64)	11m 28s
check example README is up-to-date	5m 36s
check configs.md and ***_functions.md is up-to-date	7m 7s
cargo test doc (amd64)	9m 4s
check Cargo.toml formatting	5m 3s
	2h 50m 41s

Provide feedback