Type Alias PGFunction 

pub type PGFunction = Option<unsafe extern "C-unwind" fn(fcinfo: FunctionCallInfo) -> Datum>;

Aliased Type

pub enum PGFunction {
    None,
    Some(unsafe extern "C-unwind" fn(*mut FunctionCallInfoBaseData) -> Datum),
}

Variants

None

No value.

Some(unsafe extern "C-unwind" fn(*mut FunctionCallInfoBaseData) -> Datum)

Some value of type T.