Rust

fix: Specify row count in sort_batch for empty batch #747

Job	Run time
Check cargo fmt	43s
cargo check	3m 46s
build with wasm-pack	2m 12s
cargo test (macos)	15m 48s
cargo test (macos-aarch64)	8m 52s
Verify MSRV (Min Supported Rust Version)	6m 38s
Verify Vendored Code	51s
cargo test (win64)	40m 46s
cargo doc	3m 27s
Run sqllogictest with Postgres runner	3m 12s
verify benchmark results (amd64)	10m 7s
clippy	4m 46s
circular dependency check	2m 40s
cargo test hash collisions (amd64)	8m 54s
cargo test (amd64)	8m 58s
cargo test datafusion-cli (amd64)	3m 39s
cargo test doc (amd64)	11m 18s
cargo examples (amd64)	10m 29s
cargo test pyarrow (amd64)	2m 28s
check Cargo.toml formatting	2m 56s
check configs.md is up-to-date	2m 42s
	2h 35m 12s

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