Compressed dataset with index or primary key confuses dataset reader

[rvasil]

I get out-of-bounds error when reading SAS dataset with:

• BINARY compression
• and either:
  • composite index or
  • primary key defined
• dataset has at least 3 pages = in SAS log e. g. :
  Compressed is 3 pages; un-compressed would require 4 pages

This is on current SASLib v1.3.1, SAS is 9.4 on Windows.
I didn't find this issue with CHAR compression.
I wonder if have access to SAS and can replicate this.

data work.test_comp_pk(compress=binary);
length rowno 8 text text2 $50;
do rowno = 1 to 2000;
   text = catt("text", put(rowno, z8.));
   text2 = "anything";
   output;
end;
run;

/* either this */
proc sql;
create index ix on work.test_comp_pk (rowno, text)
;
quit;

/* or this */
proc sql;
alter table work.test_comp_pk
add constraint pk primary key (rowno)
;
quit;

When either composite index or primary key is created on this sample dataset, I get error like this:

julia> s = readsas(raw"E:\temp\test_comp_pk.sas7bdat")                                         
ERROR: BoundsError: attempt to access 33-element Vector{UInt8} at index [34]                                 
Stacktrace:                                                                                                  
  [1] getindex                                                                                               
    @ .\array.jl:861 [inlined]                                                                               
  [2] rle_decompress(output_len::Int64, input::Vector{UInt8})                                                
    @ SASLib D:\lang\julia_packages\packages\SASLib\AkuJe\src\SASLib.jl:1424                                 
  [3] process_byte_array_with_data(handler::SASLib.Handler, offset::Int64, length::Int64, compression::UInt8)
    @ SASLib D:\lang\julia_packages\packages\SASLib\AkuJe\src\SASLib.jl:1198                                 
  [4] readline(handler::SASLib.Handler)                                                                      
    @ SASLib D:\lang\julia_packages\packages\SASLib\AkuJe\src\SASLib.jl:1119                                 

The presence of index or primary key is contained in SAS dataset metadata and it seems to confuse the reading logic.

EDIT: originally I reported messed-up results, but this was because I messed-up with the code when trying to find out what's going on there :-( .
Sorry for confusion and thank you for all of the effort.