mirror of
https://github.com/lancedb/lancedb.git
synced 2026-03-24 17:40:41 +00:00
01c6b9dcb8
Add support for enabling MemWAL (Memory Write-Ahead Log) mode on merge insert operations. This allows streaming writes to route through memory nodes for high-performance buffered writes. Changes: - Add `mem_wal` field to MergeInsertBuilder with validation - Add `x-lancedb-mem-wal-enabled` header for remote requests - Add Python `mem_wal()` method to LanceMergeInsertBuilder - Add validation to ensure only upsert pattern is supported: - when_matched_update_all() without filter - when_not_matched_insert_all() - Throw NotSupported error for native tables - Add mem_wal_enabled to ClientConfig for Python/Node bindings Generated with [Claude Code](https://claude.ai/code) via [Happy](https://happy.engineering) Co-Authored-By: Claude <noreply@anthropic.com> Co-Authored-By: Happy <yesreply@happy.engineering>
LanceDB
A Python library for LanceDB.
Installation
pip install lancedb
Preview Releases
Stable releases are created about every 2 weeks. For the latest features and bug fixes, you can install the preview release. These releases receive the same level of testing as stable releases, but are not guaranteed to be available for more than 6 months after they are released. Once your application is stable, we recommend switching to stable releases.
pip install --pre --extra-index-url https://pypi.fury.io/lancedb/ lancedb
Usage
Basic Example
import lancedb
db = lancedb.connect('<PATH_TO_LANCEDB_DATASET>')
table = db.open_table('my_table')
results = table.search([0.1, 0.3]).limit(20).to_list()
print(results)
Development
See CONTRIBUTING.md for information on how to contribute to LanceDB.