Type Alias pgrx_pg_sys::amestimateparallelscan_function

pub type amestimateparallelscan_function = Option<unsafe extern "C" fn() -> Size>;

Aliased Type

enum amestimateparallelscan_function {
    None,
    Some(unsafe extern "C" fn() -> usize),
}

Variants

None

No value.

Some(unsafe extern "C" fn() -> usize)

Some value of type T.