Rust

Restore add_roundrobin_on_top #623

Job	Run time
cargo check	2m 59s
Check cargo fmt	39s
build with wasm-pack	1m 55s
Verify MSRV	6m 17s
cargo test (mac)	7m 56s
Verify Vendored Code	48s
cargo test (win64)	7m 57s
Run sqllogictest with Postgres runner	3m 10s
cargo doc	3m 1s
check Cargo.toml formatting	1m 16s
clippy	4m 8s
check configs.md is up-to-date	2m 8s
cargo test hash collisions (amd64)	5m 35s
cargo test (amd64)	5m 36s
cargo test datafusion-cli (amd64)	2m 59s
cargo test doc (amd64)	9m 19s
cargo examples (amd64)	6m 31s
cargo test pyarrow (amd64)	2m 12s
verify benchmark results (amd64)	9m 13s
	1h 23m 39s

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