* Adds nicer errors to remote SDK, that expose useful properties like
`request_id` and `status_code`.
* Makes sure the Python tracebacks print nicely by mapping the `source`
field from a Rust error to the `__cause__` field.
The fact that we convert errors to strings makes them really hard to
work with. For example, in SaaS we want to know whether the underlying
`lance::Error` was the `InvalidInput` variant, so we can return a 400
instead of a 500.
This changes `lancedb` from a "pure python" setuptools project to a
maturin project and adds a rust lancedb dependency.
The async python client is extremely minimal (only `connect` and
`Connection.table_names` are supported). The purpose of this PR is to
get the infrastructure in place for building out the rest of the async
client.
Although this is not technically a breaking change (no APIs are
changing) it is still a considerable change in the way the wheels are
built because they now include the native shared library.
