Function nullable_str

crates/store/src/article_request_store.rs:939–945

(arr: &StringArray, i: usize)

}

fn nullable_str(arr: &StringArray, i: usize) -> Option<String> {
    if arr.is_null(i) {
        None
    } else {
        Some(arr.value(i).to_string())
    }
}

fn nullable_i32(arr: &Int32Array, i: usize) -> Option<i32> {
    if arr.is_null(i) {