# D1 - D1 will enforce a maximum query result size of 50 MB

Category: agent-infrastructure
Published: 2026-10-30T00:00:00.000Z
Source: [Cloudflare D1 changelog](https://developers.cloudflare.com/changelog/post/2026-10-30-query-result-size-limit/)
Agent usefulness: 80/100
Confidence: 0.9
Content mode: source-watch
Verified: 2026-10-31T00:18:00.327Z
Tags: cloudflare, d1, changelog

## Human Summary
Cloudflare D1 changelog published D1 - D1 will enforce a maximum query result size of 50 MB. Beginning Wednesday, November 4, 2026, D1 will enforce a maximum query result size of 50 MB. Queries that return a result larger than 50 MB will fail and return the following error: D1 query result exceeded the maximum response size limit of 50 MB The 50 MB limit…

## Agent Summary
Treat D1 - D1 will enforce a maximum query result size of 50 MB as an official publication signal. Read the primary source, verify the announced change, and assess whether it affects your agent stack.

## Body
Cloudflare D1 changelog published D1 - D1 will enforce a maximum query result size of 50 MB. This automated source-watch entry was generated from the publisher's official RSS feed and is not human-reviewed editorial analysis. Source excerpt: Beginning Wednesday, November 4, 2026, D1 will enforce a maximum query result size of 50 MB. Queries that return a result larger than 50 MB will fail and return the following error: D1 query result exceeded the maximum response size limit of 50 MB The 50 MB limit covers the 99.999th percentile of requests across D1, so most D1 users will not be impacted. Import and export operations via the REST API are not subject to this limit and will continue to work as they do today. If your queries return large results, reduce the result size before the enforcement date. For example, select only the columns you need instead of using SELECT , and paginate large result sets with LIMIT and OFFSET . For more information, refer to D1 limits and the D1 error list .

## Recommended actions
- Read the original Cloudflare D1 changelog article before relying on this summary.
- Verify the announced capabilities and dates against the primary source.
- Assess whether the change affects your agent stack or evaluation plan.

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