The following is a partial wish list for a multi-tenant DBMS:
- Distribute data across multiple nodes for scalability
- Restrict user access by account/tenant
- Backup multiple accounts/tenants at once
- Restore data for a single account/tenant
- Allow multiple schema versions
- Maintain multiple replicas for durability
- Meter and limit activities by account/tenant. NOTE: They should be measured in CPU cycles not in clock time (the query clock time limit as in SalesForce depends on the overall database load and adds unnecessary limitations)
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