How does storage work in AFJ?

[ksanjaykumar1]

In Agent configuration, there is an option to configure wallet storage. It says there are two options SQLite database and Postgres database.

Documentation says Aries Askar provides storage service. I am assuming agent configuration provides configuration values to the askar instance. And askar instance creates a database and stores all the crypto keys. keys, connection records, credential records, messages, schema, credential definitions etc. Is my assumption correct?

I have the following questions

1. Where and when is the database instance created and where does it physically live?
2. How persistent is the data and how to delete the data?
3. Can we configure to use an external database?