begin of s_list_aggr,
fieldname type string,
rel_fieldname type string,
aggregation_type type salv_bs_constant,
r_aggr_rule type ref to object,
type_kind(1) type c,
end of s_list_aggr
begin of s_list_sort,
fieldname type string,
text_fieldname type string,
value_fieldname type string,
sort_position type i,
r_sort_rule type ref to object,
flavour type salv_bs_constant,
end of s_list_sort
begin of s_sid_key,
row_index(12) type n,
treelevel(3) type n,
* hierarchy(3) type n,
nodekey(12) type n,
position(2) type n,
id type i,
line_index(12) type n,
end of s_sid_key