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## Bug Fix ### What is the bug? Namespace-backed `LanceTable.to_arrow()` full-table reads bypassed the existing `QueryTable` server-side query path and called the lower-level table `to_arrow()` implementation directly. In Geneva/Sophon this could fail while parsing the Arrow IPC response for `hist.get_table().to_arrow()` / `to_pandas()`, even though `hist.get_table().search().to_arrow()` worked. ### What issues or incorrect behavior does the bug cause? Full-table reads on namespace-backed tables with `QueryTable` pushdown could fail with Arrow IPC parse errors, while query/search reads on the same table succeeded. Since `to_pandas()` delegates through `to_arrow()` for non-blob/native cases, pandas export was affected too. ### How does this PR fix the problem? When `QueryTable` pushdown is enabled, sync and async table `to_arrow()` now construct a plain no-filter, no-limit, all-columns query and execute it through the table-level `_execute_query()` path. `AsyncTable` now preserves namespace context from async namespace connections so async full reads can make the same pushdown decision. Non-namespace tables and namespace tables without `QueryTable` pushdown keep their existing behavior. ### Tests - `uv run --extra tests --extra dev --no-sync ruff check python/lancedb/table.py python/lancedb/namespace.py python/tests/test_namespace.py` - `uv run --extra tests --extra dev --no-sync ruff format python/lancedb/table.py python/lancedb/namespace.py python/tests/test_namespace.py` - `uv run --extra tests --extra dev --no-sync pytest python/tests/test_namespace.py::TestPushdownOperations::test_lance_table_to_arrow_uses_query_pushdown python/tests/test_namespace.py::TestAsyncPushdownOperations::test_async_table_to_arrow_uses_query_pushdown python/tests/test_namespace.py::test_local_table_to_arrow_and_to_pandas_are_unchanged -q` - `uv run --extra tests --extra dev --no-sync pytest python/tests/test_namespace.py -q`
LanceDB Python SDK
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.