Function pgx_pg_sys::SPI_modifytuple

pub unsafe fn SPI_modifytuple(
    arg_rel: Relation, 
    arg_tuple: HeapTuple, 
    arg_natts: c_int, 
    arg_attnum: *mut c_int, 
    arg_Values: *mut Datum, 
    arg_Nulls: *const c_char
) -> HeapTuple