Rust

Implement tree explain for `DataSourceExec` (#15029) #39609

Job	Run time
Check cargo fmt	41s
Check License Header	2m 24s
build with wasm-pack	3m 22s
linux build test	5m 9s
cargo test (macos-aarch64)	11m 28s
Verify Vendored Code	53s
Verify MSRV (Min Supported Rust Version)	8m 14s
cargo check datafusion	5m 12s
cargo check functions	2m 18s
cargo check no default features	8m 13s
cargo test (amd64)	16m 1s
cargo examples (amd64)	16m 54s
check Cargo.toml formatting	4m 4s
clippy	7m 2s
check configs.md and ***_functions.md is up-to-date	5m 4s
cargo doc	4m 12s
cargo test doc (amd64)	18m 50s
Run sqllogictest with Postgres runner	5m 31s
cargo test pyarrow (amd64)	4m 29s
verify benchmark results (amd64)	9m 47s
	2h 19m 48s

Provide feedback