Rust

Implement `PhysicalExpr` CSE #360

Job	Run time
Check License Header	2m 28s
Check cargo fmt	34s
build with wasm-pack	2m 48s
cargo check	13m 22s
cargo test (macos)	14m 29s
cargo test (macos-aarch64)	15m 20s
Verify Vendored Code	40s
cargo test (win64)	1h 10m 42s
Verify MSRV (Min Supported Rust Version)	8m 52s
clippy	6m 19s
check configs.md and ***_functions.md is up-to-date	3m 2s
cargo test hash collisions (amd64)	29m 33s
check Cargo.toml formatting	3m 8s
cargo doc	4m 47s
cargo test (amd64)	11m 49s
cargo test datafusion-cli (amd64)	4m 11s
cargo test doc (amd64)	16m 40s
cargo examples (amd64)	14m 3s
Run sqllogictest with Postgres runner	3m 53s
cargo test pyarrow (amd64)	3m 11s
verify benchmark results (amd64)	13m 26s
	4h 3m 17s

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