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Alias Messages
Messages managing collection aliases. All are CChannel-only broadcasts serialized at the database level.
All broadcast messages implicitly carry SharedCluster via the Broadcaster.
| Message | Dispatch | ExclusiveRequired | ResourceKey |
|---|---|---|---|
| AlterAlias | Broadcast: CChannel | No | ExclusiveDBName |
| DropAlias | Broadcast: CChannel | No | ExclusiveDBName |
- AlterAlias: Creates or alters an alias to point to a collection.
- DropAlias: Drops an alias.
Key Invariants
- All alias operations are serialized via ExclusiveDBName.
- ExclusiveDBName conflicts with SharedDBName (used by collection-level DDL), so alias operations block all collection DDL in the same database.
- CreateAlias uses the AlterAlias message type internally.