Closes #3059. `io::object_store::test::test_e2e` has been `#[ignore]`d since Lance started writing local tables through `LocalWriter`. For a `file://` store, `ObjectStore::create()` returns a `LocalWriter` that writes straight to disk, so `MirroringObjectStoreWrapper` never sees the writes and the secondary stays empty. Lance's `file-object-store://` scheme uses the same local provider, but `create()` only takes the `LocalWriter` path for `file`, so every other scheme writes through the wrapped store. This connects the test to `file-object-store://<dir1>` and drops the `#[ignore]`. The table files still land in `dir1`, so the existing file-list comparison covers the mirroring wrapper on real files again. The two relative file lists are sorted before comparison so the assertion detects missing and extra files independently of `WalkDir` traversal order. The row and vector-query assertions remain unchanged. Validation: - Rust object-store module at `b11f7a9684d94100f40818d1249479c726b2b006`: 3 passed, with the focused `test_e2e` included. - Hosted Linux test merge: `test_e2e` passed and the library reported 2046 passed. - Complete applicable CI at the final head: 8 workflows and 39 successful checks passed; 2 conditional jobs were skipped. Co-authored-by: Bilal Atique <bilalbinatique@gmail.com>
The Multimodal Lakehouse for AI
How to Install ✦ Detailed Documentation ✦ Tutorials and Recipes ✦ Contributors
The ultimate multimodal data platform for AI/ML applications.
LanceDB is designed for fast, scalable, and production-ready vector search. It is built on top of the Lance columnar format. You can store, index, and search over petabytes of multimodal data and vectors with ease. LanceDB is a central location where developers can build, train and analyze their AI workloads.
Demo: Multimodal Search by Keyword, Vector or with SQL
Star LanceDB to get updates!
Key Features:
- Fast Vector Search: Search billions of vectors in milliseconds with state-of-the-art indexing.
- Comprehensive Search: Support for vector similarity search, full-text search and SQL.
- Multimodal Support: Store, query and filter vectors, metadata and multimodal data (text, images, videos, point clouds, and more).
- Advanced Features: Zero-copy, automatic versioning, manage versions of your data without needing extra infrastructure. GPU support in building vector index.
Products:
- LanceDB Embedded (open source): 100% open source, runs in your application's process; your data can live on local disk or in object storage. No vendor lock-in.
- LanceDB Enterprise: Production-scale distributed search, indexing, and maintenance. Plus, complete data sovereignty and security.
Ecosystem:
- Columnar Storage: Built on the Lance columnar format for efficient storage and analytics.
- Seamless Integration: Python, Node.js, Rust, and REST APIs for easy integration. Native Python and Javascript/Typescript support.
- Rich Ecosystem: Integrations with LangChain 🦜️🔗, LlamaIndex 🦙, Apache-Arrow, Pandas, Polars, DuckDB and more on the way.
How to Install:
Follow the Quickstart doc to set up LanceDB locally.
API & SDK: We also support Python, Typescript and Rust SDKs
| Interface | Documentation |
|---|---|
| Python SDK | https://lancedb.github.io/lancedb/python/python/ |
| Typescript SDK | https://lancedb.github.io/lancedb/js/globals/ |
| Rust SDK | https://docs.rs/lancedb/latest/lancedb/index.html |
| REST API | https://docs.lancedb.com/api-reference/rest |
Join Us and Contribute
We welcome contributions from everyone! Whether you're a developer, researcher, or just someone who wants to help out.
If you have any suggestions or feature requests, please feel free to open an issue on GitHub or discuss it on our Discord server.
Check out the GitHub Issues if you would like to work on the features that are planned for the future. If you have any suggestions or feature requests, please feel free to open an issue on GitHub.

