pub unsafe fn construct_md_array( arg_elems: *mut Datum, arg_nulls: *mut bool, arg_ndims: c_int, arg_dims: *mut c_int, arg_lbs: *mut c_int, arg_elmtype: Oid, arg_elmlen: c_int, arg_elmbyval: bool, arg_elmalign: c_char) -> *mut ArrayType