Schemas compatiblity - open with different / updated schema.

[Paulie14]

using .read_df()

• when opening a storage with incompatible schema (e.g. accidentally) - it automatically creates new empty key nodes - this results in error when opening with correct schema later

  • I suppose that when opening for reading, nothing should be created in the storage

• updating (adding new nodes) to schema - how is this suppose to work?

  • I have my compatible schema and I add new node
  • with this schema I want to open a storage created before (without the new node) - what should be the result?
  • currently it automatically creates a new empty node in the storage