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Jack YeandClaude Sonnet 5
de95ed3f6d
A broad documentation pass across the areas LanceDB Enterprise and Embedded diverge on most: **Data Curation** -- GPU Function execution, Slurm scheduling (and what Slurm is, for readers new to it), blob late materialization as its own page, joins, aggregation/profiling, sampling, near-duplicate detection, chunking, distributed shuffle, and IVF-partition clustering. **Feature Engineering** -- computed columns and materialized views, restructured to lead with the Function-based path and show the SQL form side by side with Python throughout; a single Auto Refresh page instead of duplicating scheduling details on every refresh page; adaptive execution; checkpointing; GPU and Slurm placement for refresh workers; a Training Cache page for the PyTorch data loader's automatic cache benefit. **Security & Governance** -- an Audit Log reference (schema, access, grants), Secrets promoted to an ordinary catalog object with their own SQL DDL and a vending/rotation guide, and privilege-table fixes verified against the authorization source. **Deployment & Maintenance** -- Horizontal Scaling and OpenTelemetry moved into a real Deployment area; Automated Cleanup folded into Intelligent Auto-Maintenance (every other maintenance decision already lived there); RTE Compaction and Advanced Conflict Resolution documented in depth. **Landing page** -- the Enterprise feature comparison table reorganized (several redundant or stale rows removed, several new areas added), and the "why Enterprise" bullets replaced with ones tied to a concrete page (Performance, Scale, Fault tolerance, Multicloud deployment, Simplify operations) instead of vague promises. Plus a full pass addressing lancedb-gatekeeper's review: a real test-safety bug (a quickstart test could silently overwrite and delete a deployment's own `frames` table), a fabricated SQL statement with no backing implementation, an actual dedup-guarantee bug in `take_row_ids`, and dozens of documentation-accuracy fixes verified against source rather than taken on faith -- each either fixed, or left with an explicit note on why it needs a feature or deployment owner's sign-off instead of being guessed at. 🤖 Generated with [Claude Code](https://claude.com/claude-code) https://claude.ai/code/session_018PXMCbRH6i5w47TsjeEUMT --------- Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
65 lines
2.1 KiB
Plaintext
65 lines
2.1 KiB
Plaintext
---
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title: "Index"
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sidebarTitle: "Index"
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description: "CREATE INDEX and DROP INDEX: one column, with the algorithm chosen by USING."
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icon: bolt
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keywords: ["create index", "drop index", "sql"]
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availability:
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embedded: unavailable
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enterprise: available
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---
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## CREATE INDEX {#create}
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<CodeGroup>
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```sql SQL icon="database"
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CREATE INDEX ON documents USING btree (title)
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CREATE INDEX text_search ON documents USING fts (text)
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```
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</CodeGroup>
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`USING` is required: it names the algorithm. The scalar algorithms are `btree`,
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`bitmap` and `label_list`; `fts` builds a full-text index; and the vector
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algorithms are `ivf_pq`, `ivf_rq`, `ivf_flat`, `ivf_hnsw_sq` and `ivf_hnsw_pq`,
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where the deployment supports them. Index options go in a `WITH (...)` clause.
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<Note>
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In LanceDB Enterprise, SQL `CREATE INDEX` covers **one column**. A name between
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`INDEX` and `ON` names the index, where the deployment's configuration allows
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it; without one, the server names it after the column, as in `title_idx`. For a
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multi-column index, use the SDK's [`create_index`](/indexing).
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</Note>
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<Note>
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**Enterprise job type:** `reindex_` followed by the algorithm, such as
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`reindex_btree` or `reindex_ivf_pq`; the name says which algorithm is building,
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not a different feature. An SDK build that must not replace an existing index
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runs as `create_` followed by the algorithm instead. See
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[Incremental Indexing](/indexing/incremental-indexing).
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</Note>
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## DROP INDEX {#drop}
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<CodeGroup>
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```sql SQL icon="database"
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DROP INDEX documents.title_idx
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```
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</CodeGroup>
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Takes the qualified `table.index` name. Find it with the SDK's
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[`list_indices`](/indexing) if you created the index without
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naming it yourself. A deployment builds the index in the background after
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`CREATE INDEX` returns; until that build finishes, the index is not listed and
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`DROP INDEX` reports it as not found.
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## What to read next {#next}
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<CardGroup cols={2}>
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<Card title="Indexing" icon="bolt" href="/indexing">
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Choosing an index type from the SDK.
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</Card>
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<Card title="Incremental Indexing" icon="refresh" href="/indexing/incremental-indexing">
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Keeping an index current as data arrives.
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</Card>
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</CardGroup>
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