Module snapshot 

Structs

EntityTreeSnapshot

Recursive snapshot of an entity and all its strong-relationship children. Used for delete undo/redo: snapshot before delete, restore on undo.

JunctionSnapshot

Snapshot of entries from a single junction table.

TableLevelSnapshot

Complete snapshot of a single entity table level: the entity rows plus all forward and backward junction tables that reference them.

TableSnapshot

Snapshot of rows from a single entity table, stored as postcard-serialized bytes.