Hello,

http://cvs.haskell.org/Hugs/pages/libraries/base/Data-ByteString.html

but

vigalchin@ubuntu:~$ ghci
GHCi, version 6.8.2: http://www.haskell.org/ghc/ :? for help
Loading package base ... linking ... done.
Prelude> :m +Data.ByteString
Prelude Data.ByteString> :t join

<interactive>:1:0: Not in scope: `join'
Prelude Data.ByteString>

Why no "join" function?

Regards, Vasili