Function window_functions

crates/gitql-std/src/window.rs:15–25

()

use crate::meta_types::first_element_type;

pub fn window_functions() -> &'static HashMap<&'static str, WindowFunction> {
    static HASHMAP: OnceLock<HashMap<&'static str, WindowFunction>> = OnceLock::new();
    HASHMAP.get_or_init(|| {
        let mut map: HashMap<&'static str, WindowFunction> = HashMap::new();
        map.insert("first_value", window_first_value);
        map.insert("nth_value", window_nth_value);
        map.insert("last_value", window_last_value);
        map.insert("row_number", window_row_number);
        map
    })
}

pub fn window_function_signatures() -> HashMap<&'static str, Signature> {
    let mut map: HashMap<&'static str, Signature> = HashMap::new();