- Add comments explaining unique key composition:
- CDC events: (source_topic, offset) = Kafka topic + message offset
- Outbox events: (source_service, event_id) = service name + outbox ID
- Fix contribution-service migration:
- Extend source_service column from VARCHAR(50) to VARCHAR(100)
- Set source_service as NOT NULL to match schema
- Use snake_case for index name consistency
- Clarify that offset/event_id are NOT database auto-increment IDs
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
hailin
e00c81153b
