Commits
Jorge C. Leitao authored and Neville Dipale committed c4b0d0e6cdb
ARROW-10019: [Rust] Add substring kernel This PR adds a new function to kernels called `substring` that yields a substring of a StringArray starting at a given index, and with a given optional length. `fn substring(array: &Array, start: i32, length: &Option<u32>) -> Result<ArrayRef>` This operation is common in strings, and it is useful for string-based transformations. The API is inspired by Spark's API. Closes #8199 from jorgecarleitao/substring Authored-by: Jorge C. Leitao <jorgecarleitao@gmail.com> Signed-off-by: Neville Dipale <nevilledips@gmail.com>