04480c274a
## Summary Closes #3406 Add a regression matrix in `python/python/tests/test_nested_fields.py` that exercises the full nested field index lifecycle for both the sync and async Python table APIs. The tests will fail if any implementation regresses to leaf-only field names in `list_indices`, `index_stats`, search, or filter results. ## Test scenarios covered **Index types:** BTree scalar, IvfPq vector, FTS **Field-name edge cases (per acceptance criteria):** - `rowId` — camelCase top-level field - `` `row-id` `` — hyphenated top-level field (escaped) - `parent.`\``leaf.name`\`` ` — struct leaf whose name contains a literal dot - `MetaData.userId` — mixed-case nested path - `` `meta-data`.`user-id` `` — hyphenated struct with hyphenated leaf **Lifecycle operations per index type:** - `create_index` / `create_scalar_index` / `create_fts_index` - `list_indices` → verify canonical full dotted path (not leaf name) - `index_stats` → verify row count and index type - Filtered scan (`WHERE nested.field = value`) - Vector search via nested embedding column - FTS search via nested text column - `add` (append) then re-check index listing - `optimize` then re-check index listing **Both sync and async APIs** are covered in parallel test classes. ## Notes Lance forbids top-level field names that contain a literal `.`, so the `` `a.b` `` acceptance-criterion variant is exercised as a *struct leaf* field (`parent.`\``leaf.name`\``) rather than a top-level column.
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.
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- Fast Vector Search: Search billions of vectors in milliseconds with state-of-the-art indexing.
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| 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 |
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