Module schema_registry 

Per-array SchemaDoc registry with durable cold-start snapshots.

Each registered array has one Loro-backed SchemaDoc that tracks the array’s schema and its Hlc version. Snapshots are persisted under Namespace::Meta keys of the form b"array.schema_doc:{name}" so the registry can be reconstructed after process restart without a full sync.

Storage format

Each key maps to a MessagePack-encoded [PersistedSchema] tuple: (replica_id: u64, schema_hlc_bytes: [u8; 18], loro_snapshot: Vec<u8>).

Cold-start scan

SchemaRegistry::load reads every key under the prefix b"array.schema_doc:" with one prefix scan.

Structs

SchemaRegistry

Per-array SchemaDoc registry.