3622
MariaDBERRORNotableAccess ControlHIGH confidence
Duplicate key in partial revoke grant table
Production Risk
Medium — Privilege change fails; retry after serializing operations.
How to reproduce
trigger — this will error
trigger — this will error
-- Concurrent REVOKE operations on same user
expected output
ERROR 3622 (HY000): Duplicate key detected in partial revoke grant table.
Fix
Serialize privilege changes
Serialize privilege changes
-- Use application-level locking or serialized migration scripts for privilege changes
Why this works
Prevents concurrent GRANT/REVOKE conflicts.
What not to do
✕
Version notes
Sources
Official documentation ↗
MySQL 8.0 — 3622 ER_DA_DUPLICATE_KEY_FOR_PARTIAL_REVOKE
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