Function regexp_split_to_array

src/expr/src/scalar/func/variadic.rs:1254–1263

(
    text: &str,
    regexp_str: &str,
    flags: OptionalArg<&str>,
    temp_storage: &'a RowArena,
)

    introduces_nulls = false
)]
fn regexp_split_to_array<'a>(
    text: &str,
    regexp_str: &str,
    flags: OptionalArg<&str>,
    temp_storage: &'a RowArena,
) -> Result<Datum<'a>, EvalError> {
    let flags = flags.unwrap_or("");
    let regexp = build_regex(regexp_str, flags)?;
    regexp_split_to_array_re(text, &regexp, temp_storage)
}

#[sqlfunc]
fn regexp_replace<'a>(