Using bincode makes it quite tricky to debug the workspaces table, as it contains leading null bytes (which sqlite doesn't handle well). JSON is much easier to use, and more space-efficient to boot.
Building Queries
First, craft your test data. The examples folder shows a template for building a test-db, and can be ran with cargo run --example [your-example].
To actually use and test your queries, import the generated DB file into https://sqliteonline.com/