Enum mz_storage_controller::collection_mgmt::CollectionManagerKind

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pub enum CollectionManagerKind {
    AppendOnly,
    Differential,
}
Expand description

Types of storage-managed/introspection collections:

Append-only: Only accepts blind writes, writes that can be applied at any timestamp and don’t depend on current collection contents.

Pseudo append-only: We treat them largely as append-only collections but periodically (currently on bootstrap) retract old updates from them.

Differential: at any given time t , collection contents mirrors some (small cardinality) state. The cardinality of the collection stays constant if the thing that is mirrored doesn’t change in cardinality. At steady state, updates always come in pairs of retractions/additions.

Variants§

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AppendOnly

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Differential

Trait Implementations§

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impl From<&IntrospectionType> for CollectionManagerKind

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fn from(value: &IntrospectionType) -> Self

Converts to this type from the input type.

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