# Performance

- search functions of *index objects* with a "pagination" system: ask entries with a limit on the number of elements and an offset.

# Memory and file-system management

- When a value is removed, the related partitions (and tags) may be empty, leaving both an empty array
  in memory and a directory on the file-system. Should they be removed?

# Documentation

- Finish the PDF to explain *why DODB*.
- Change *index* by *key* in `DODB::Storage` and inherited classes.