Rust

Simplify `EXPR LIKE 'constant'` to `expr = 'constant'` #348

Job	Run time
cargo check	8m 28s
Check License Header	2m 12s
build with wasm-pack	2m 40s
Check cargo fmt	47s
cargo test (macos)	9m 10s
Verify MSRV (Min Supported Rust Version)	8m 51s
cargo test (macos-aarch64)	11m 54s
Verify Vendored Code	44s
cargo test (win64)	1h 6m 38s
check configs.md and ***_functions.md is up-to-date	3m 11s
cargo test hash collisions (amd64)	17m 39s
clippy	6m 31s
check Cargo.toml formatting	2m 47s
cargo doc	4m 34s
cargo test (amd64)	11m 23s
cargo test datafusion-cli (amd64)	4m 12s
cargo examples (amd64)	14m 21s
cargo test doc (amd64)	16m 10s
Run sqllogictest with Postgres runner	3m 44s
cargo test pyarrow (amd64)	3m 10s
verify benchmark results (amd64)	13m 11s
	3h 32m 17s

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