I believe that dictionary encoding in-memory was very recently implemented (February 28) in https://github.com/apache/arrow/commit/c7a7d2dcc46ed06593b994cb54c5eaf9ccd1d21d#diff-72812e30873455dcee2ce2d1ee26e4ab. Not sure about the other questions
On Mon, Mar 9, 2020 at 11:07 PM Evan Chan <evan_c...@apple.com.invalid> wrote: > > Hi, > > Does the Rust implementation support dictionary encoded strings? It is not > in the documentation anywhere, but there seem to be some variable-sized > dictionary structs in the code base. > If not, is there a plan to support it? > Does DataFusion support reading from dictionary strings? > > It seems all the examples in DataFusion and the Rust part are focused on > numbers. How robust is the string support, and how robust is the string > functionality overall? > > Thanks, > Evan