v.20.7Improvement
Exceptions Forwarded to Client on ALTER or Mutation Errors
Now exceptions forwarded to the client if an error happened during ALTER or mutation. Closes #11329. #12666 (alesapin).
Why it matters
Previously, errors duringALTER or mutation queries might not have been properly reported to the client, making troubleshooting difficult. This feature ensures that any exceptions raised during these operations are immediately communicated to the client, improving error visibility and debugging efficiency.How to use it
No special configuration is needed. When performingALTER or mutation queries, any errors will automatically be forwarded and displayed to the client.