Rust

move push_down_aggregation code to cnosdb #39

Job	Run time
cargo check	3m 57s
cargo test (mac)	4m 35s
cargo test (win64)	11m 3s
Check cargo fmt	56s
Verify Vendored Code	52s
cargo test hash collisions (amd64)	0s
check configs.md is up-to-date	0s
check Cargo.toml formatting	0s
clippy	0s
cargo doc	0s
cargo test (amd64)	0s
cargo test datafusion-cli (amd64)	0s
cargo test doc (amd64)	0s
cargo examples (amd64)	0s
Run sqllogictest with Postgres runner	0s
cargo test pyarrow (amd64)	0s
verify benchmark results (amd64)	0s
	21m 23s

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