Struct mz_compute_client::controller::instance::CollectionIntrospection

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struct CollectionIntrospection<T: ComputeControllerTimestamp> {
    collection_id: GlobalId,
    introspection_tx: Sender<(IntrospectionType, Vec<(Row, Diff)>)>,
    frontiers: Option<FrontiersIntrospectionState<T>>,
    refresh: Option<RefreshIntrospectionState<T>>,
}
Expand description

Manages certain introspection relations associated with a collection. Upon creation, it adds rows to introspection relations. When dropped, it retracts its managed rows.

TODO: ComputeDependencies could be moved under this.

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§collection_id: GlobalId

The ID of the compute collection.

§introspection_tx: Sender<(IntrospectionType, Vec<(Row, Diff)>)>

A channel through which introspection updates are delivered.

§frontiers: Option<FrontiersIntrospectionState<T>>

Introspection state for IntrospectionType::Frontiers.

Some if the collection does not sink into a storage collection (i.e. is not an MV). If the collection sinks into storage, the storage controller reports its frontiers instead.

§refresh: Option<RefreshIntrospectionState<T>>

Introspection state for IntrospectionType::ComputeMaterializedViewRefreshes.

Some if the collection is a REFRESH MV.

Implementations§

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impl<T: ComputeControllerTimestamp> CollectionIntrospection<T>

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fn new( collection_id: GlobalId, introspection_tx: Sender<(IntrospectionType, Vec<(Row, Diff)>)>, as_of: Antichain<T>, storage_sink: bool, initial_as_of: Option<Antichain<T>>, refresh_schedule: Option<RefreshSchedule>, ) -> Self

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fn report_initial_state(&self)

Reports the initial introspection state.

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fn observe_frontiers( &mut self, read_frontier: &Antichain<T>, write_frontier: &Antichain<T>, )

Observe the given current collection frontiers and update the introspection state as necessary.

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fn update_frontier_introspection( &mut self, read_frontier: &Antichain<T>, write_frontier: &Antichain<T>, )

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fn update_refresh_introspection(&mut self, write_frontier: &Antichain<T>)

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fn send(&self, introspection_type: IntrospectionType, updates: Vec<(Row, Diff)>)

Trait Implementations§

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impl<T: Debug + ComputeControllerTimestamp> Debug for CollectionIntrospection<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T: ComputeControllerTimestamp> Drop for CollectionIntrospection<T>

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fn drop(&mut self)

Executes the destructor for this type. Read more

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