How to re-open existing database?

[ghost]

Creating the database works fine using the example given at https://sophy.readthedocs.io/en/latest/api.html#Database , and it's stored to disk. And i can read values to and from it, at that moment.

But, when using get_database only, commenting out the add_database line, wanting to just reopen the stored existing database afterwards without overwriting it with a new (and then empty) one, i get this:

kv_db = env.get_database('kv') File "sophy.pyx", line 251, in sophy.Sophia.get_database KeyError: 'kv'

Is there something i'm doing incorrectly or have misunderstood?

My 'env' folder looks like this:

test/kv
test/kv/00000000000000000001.db
test/kv/scheme

Any help or tips are appreciated.

[coleifer]

The database schema configuration is not stored in the database, so you have to add the database schema / configure it every time you open the environment. Kinda sucks, not sure if the sophia maintainer has any plans on changing that.

[ghost]

@coleifer Ah ok. Though, unless there's something i've overlooked, it seems to me that add_database will then simply overwrite/replace the pre-existing database, with an empty one.

EDIT: I was mistaken. Not sure how i previously managed to destroy my databases. But add_database does indeed NOT do what i stated above, using the documentation example.