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lancedb/docs/web/sql/dml/copy.mdx
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Brendan Clement 06aa526ae1 docs: correct data workflows, SQL and operations (#4534)
This PR is part of the documentation revamp. Once the full set of PRs is
merged, we’ll publish the combined site to staging for review before
updating docs.lancedb.com.

The curation, SQL and operations pages contain outdated claims and
examples that do not reliably work as written.

This corrects those pages against the reviewed SDK and local server
evidence, including prepared statements, background jobs, cleanup and
monitoring. Integration guides are grouped with their examples in #4533.

Function and Secret-object documentation stays unpublished until its
release. The two Function pages are listed in `.mintignore` and left out
of the navigation, and the sections about them on other pages are MDX
comments.

Stacked on #4533. Each MDX file has one PR owner. Rebase onto main after
#4533 is squash-merged.

Local assembly, Mint validation and link checks pass, and the assembled
site shows no Function or Secret-object content. A local release
rehearsal that uncomments the drafts and restores the navigation also
passes. Hold publication until this PR and lancedb/sophon#8688 are on
`main`.
2026-10-15 14:57:20 -07:00

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---
title: "Copy"
sidebarTitle: "Copy"
description: "COPY ... TO — writing a query result to object storage as files."
icon: file-export
keywords: ["copy", "export", "parquet", "sql"]
---
<Warning>
Recent deployment versions refuse `COPY` over the SQL endpoint with "COPY is not
supported". On those, export a result by reading it through a Flight SQL client
or an SDK and writing the files from your application.
</Warning>
```sql
COPY (SELECT id, title FROM documents) TO 's3://bucket/export/' STORED AS PARQUET
```
Writes a query result to object storage. This is the export path when the
consumer is another engine rather than an application -- results land as files
rather than streaming to a client.
## What to read next {#next}
<Card title="Insert" icon="plus" href="/sql/dml/insert">
Bringing rows in, rather than exporting them.
</Card>