Justin Miller c8d654db37 feat: add ADBC/Flight SQL interface with search table functions (OSS-738)
Add Arrow Flight SQL server and SQL table functions for vector/hybrid search,
enabling standard SQL workbench tools to connect to LanceDB via ADBC.

Phase 1 - Search Table Functions:
- vector_search(table, vector_json, top_k) UDTF for vector similarity search
- hybrid_search(table, vector_json, fts_json, top_k) UDTF combining both
- Generalized TableResolver with SearchQuery enum (Fts/Vector/Hybrid)
- Extended BaseTableAdapter with VectorSearchParams support

Phase 2 - Arrow Flight SQL Server:
- FlightSqlService implementation with SQL query execution
- Catalog introspection (tables, schemas, catalogs, table types)
- All three UDTFs auto-registered in session context
- Feature-gated behind "flight" flag (arrow-flight + tonic + prost)

Phase 3 - Example & Tests:
- flight_sql example: creates sample DB, starts Flight SQL server
- Tests for vector_search and hybrid_search UDTFs
- Flight SQL integration tests (basic query, table listing, session)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-07 01:48:35 -07:00
2023-03-17 18:15:19 -07:00
2025-03-10 09:01:23 -07:00

LanceDB Cloud Public Beta

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LanceDB

The Multimodal AI Lakehouse

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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

LanceDB Multimodal Search

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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:

  • Open Source & Local: 100% open source, runs locally or in your cloud. No vendor lock-in.
  • Cloud and Enterprise: Production-scale vector search with no servers to manage. 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

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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.

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