sset = resultSetClone(zh, output_setname, sset);
sset->sortSpec = copy_SortKeySpecList(sort_sequence, sset->nmem);
return resultSetSortSingle (zh, nmem, sset, rset, sort_sequence,
sset = resultSetClone(zh, output_setname, sset);
sset->sortSpec = copy_SortKeySpecList(sort_sequence, sset->nmem);
return resultSetSortSingle (zh, nmem, sset, rset, sort_sequence,