Rust

Update datafusion/physical-plan/src/joins/sort_merge_join.rs #708

Job	Run time
build with wasm-pack	2m 19s
cargo check	3m 26s
cargo test (macos)	30m 42s
cargo test (win64)	41m 41s
Check cargo fmt	41s
Verify MSRV (Min Supported Rust Version)	7m 17s
Verify Vendored Code	46s
check Cargo.toml formatting	1m 20s
check configs.md is up-to-date	2m 25s
clippy	4m 55s
cargo test hash collisions (amd64)	8m 49s
cargo doc	4m 2s
cargo test (amd64)	9m 26s
cargo test datafusion-cli (amd64)	3m 47s
cargo examples (amd64)	7m 56s
cargo test doc (amd64)	10m 17s
cargo test pyarrow (amd64)	2m 24s
Run sqllogictest with Postgres runner	3m 10s
verify benchmark results (amd64)	10m 24s
	2h 35m 47s

Provide feedback