pub unsafe fn tuplesort_begin_heap(
arg_tupDesc: TupleDesc,
arg_nkeys: c_int,
arg_attNums: *mut AttrNumber,
arg_sortOperators: *mut Oid,
arg_sortCollations: *mut Oid,
arg_nullsFirstFlags: *mut bool,
arg_workMem: c_int,
arg_coordinate: SortCoordinate,
arg_randomAccess: bool,
) -> *mut Tuplesortstate