fix: preserve primary error across join map cancellation - #27614

• ✅ Entered queue — 2026-08-28 09:05 UTC · Rule: main · triggered by rule Automatic queue on approval for main
• 🟠 Checks running · in-place
• 🚫 Left the queue — 2026-08-28 09:31 UTC · at 53af8c26ef2c8b18c4993764bfd0a7ccbce64a62

This pull request spent 26 minutes 19 seconds in the queue, with no time running CI.

Reason

Pull request #27614 has been dequeued

Pull request from fork cannot be queued. This pull request comes from a fork, and Mergify needs the author's permission to update its branch.

The author needs to enable "Allow edits from maintainers" on this pull request.

Failing checks:

• 🟠 Matrixone CI / SCA Test on Linux/arm64 (job log)
• 🟠 Matrixone CI / UT Test on Ubuntu/x86 (job log)
• 🟠 Matrixone Compose CI / multi cn e2e bvt test docker compose(PROXY) (job log)
• 🟠 Matrixone Standlone CI / multi CN e2e BVT Test on Linux/x64(COMPOSE, PESSIMISTIC) (job log)
• 🟠 Matrixone UT Coverage / UT Coverage on Ubuntu/x86 (job log)

Hint

You should look at the reason for the failure and decide if the pull request needs to be fixed or if you want to requeue it.
If you do update this pull request, it will automatically be requeued once the queue conditions match again.
If you think this was a flaky issue instead, you can requeue the pull request, without updating it, by posting a @mergifyio queue comment.

Tick the box to put this pull request back in the merge queue (same as @mergifyio queue).

• Requeue this pull request