lancedb

rust/lancedb

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Jonathan HsiehandClaude Opus 5.5 82d39485a4 feat(functions): address Functions by namespace path (#4341 )

Adds namespace addressing to Functions, matching what Secrets already
have (#4150).

## API

`create_function` / `create_function_async`, `get_function`,
`list_functions`, `drop_function` / `drop_function_async` take
`namespace_path` — keyword-only in Python (sync, async and remote
connections) and a trailing `&[String]` in Rust — defaulting to the
root. The namespace is addressed in the route identifier
(`/v1/function/analytics$features$embed/describe`,
`/v1/namespace/analytics$features/function/list`); no body carries it.

`FunctionVersion` and `FunctionVersionRef` name their Function **by
parts** — a short `name` plus `namespace_path` — the same shape as
`SecretReference`, so a returned version reopens from its own fields:

```python
fv = db.create_function(embed, namespace_path=["analytics", "features"])
fv.name, fv.namespace_path          # "embed", ("analytics", "features")
db.get_function(fv.name, version=fv.version, namespace_path=list(fv.namespace_path))
```

An empty path is omitted from the wire, so root documents keep their
shape. `namespace_path` is passed straight to the binding, so a bare
string (`namespace_path="prod"`) is a `TypeError` rather than four
one-character segments; segments are checked for addressability before a
request is built.

The binding and application allow-lists now share one field list,
`FUNCTION_VERSION_REF_FIELDS`, which admits `namespace_path` — without
it a namespaced binding or application read as coming from a newer
contract.

## Service side

The Sophon half serves and persists FunctionVersion / FunctionVersionRef
documents in this split form, keeping the joined id as its internal
catalog key. It lands in sophon with the submodule bump.

## Tests

- Rust: every Function verb addresses a namespace in the path; an
unaddressable segment never reaches the transport; `FunctionVersion`
round-trips a namespace and `reference()` carries it; a namespaced
binding and application are known shapes.
- Python: sync and async verbs address the namespace; a created Function
reopens from its own `name`/`namespace_path`; a bare-string path is
refused before any request.

Draft: compiles, `cargo fmt --check` and clippy `-D warnings` clean;
lancedb lib Function tests (116) and `first_class_function_slice2` pass
on this base.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

2026-09-29 14:07:14 -07:00

table

chore: update lance dependency to v6.0.0-beta.7 (#3334 )

2026-04-29 10:52:25 -07:00

arrow.rs

feat(python): make Permutation fork-safe for PyTorch DataLoader workers (#3339 )

2026-05-05 13:44:10 -07:00

catalog.rs

feat: add remote catalogs and Python and TypeScript bindings (#4195 )

2026-09-17 01:51:10 +08:00

connection.rs

feat(functions): address Functions by namespace path (#4341 )