Function pgrx_pg_sys::add_enum_reloption

pub unsafe fn add_enum_reloption(
    arg_kinds: bits32,
    arg_name: *const c_char,
    arg_desc: *const c_char,
    arg_members: *mut relopt_enum_elt_def,
    arg_default_val: c_int,
    arg_detailmsg: *const c_char,
    arg_lockmode: LOCKMODE
)