pub(super) struct CorrectionV2<D: Data> {
chains: Vec<Chain<D>>,
stage: Stage<D>,
since: Antichain<Timestamp>,
total_size: LengthAndCapacity,
metrics: SinkMetrics,
worker_metrics: SinkWorkerMetrics,
}
Expand description
A data structure used to store corrections in the MV sink implementation.
In contrast to CorrectionV1
, this implementation stores updates in columnation regions,
allowing their memory to be transparently spilled to disk.
Fields§
§chains: Vec<Chain<D>>
Chains containing sorted updates.
stage: Stage<D>
A staging area for updates, to speed up small inserts.
since: Antichain<Timestamp>
The frontier by which all contained times are advanced.
total_size: LengthAndCapacity
Total length and capacity of chunks in chains
.
Tracked to maintain metrics.
metrics: SinkMetrics
Global persist sink metrics.
worker_metrics: SinkWorkerMetrics
Per-worker persist sink metrics.
Implementations§
Source§impl<D: Data> CorrectionV2<D>
impl<D: Data> CorrectionV2<D>
Sourcepub fn new(metrics: SinkMetrics, worker_metrics: SinkWorkerMetrics) -> Self
pub fn new(metrics: SinkMetrics, worker_metrics: SinkWorkerMetrics) -> Self
Construct a new CorrectionV2
instance.
Sourcepub fn insert_negated(&mut self, updates: &mut Vec<(D, Timestamp, Diff)>)
pub fn insert_negated(&mut self, updates: &mut Vec<(D, Timestamp, Diff)>)
Insert a batch of updates, after negating their diffs.
Sourcefn insert_inner(&mut self, updates: &mut Vec<(D, Timestamp, Diff)>)
fn insert_inner(&mut self, updates: &mut Vec<(D, Timestamp, Diff)>)
Insert a batch of updates.
All times are expected to be >= the since
.
Sourcepub fn updates_before<'a>(
&'a mut self,
upper: &Antichain<Timestamp>,
) -> impl Iterator<Item = (D, Timestamp, Diff)> + 'a
pub fn updates_before<'a>( &'a mut self, upper: &Antichain<Timestamp>, ) -> impl Iterator<Item = (D, Timestamp, Diff)> + 'a
Return consolidated updates before the given upper
.
Sourcefn consolidate_before(&mut self, upper: &Antichain<Timestamp>)
fn consolidate_before(&mut self, upper: &Antichain<Timestamp>)
Consolidate all updates before the given upper
.
Once this method returns, all remaining updates before upper
are contained in a single
chain. Note that this chain might also contain updates beyond upper
though!
Sourcepub fn advance_since(&mut self, since: Antichain<Timestamp>)
pub fn advance_since(&mut self, since: Antichain<Timestamp>)
Advance the since frontier.
§Panics
Panics if the given since
is less than the current since frontier.
Sourcepub fn consolidate_at_since(&mut self)
pub fn consolidate_at_since(&mut self)
Consolidate all updates at the current since
.
Sourcefn update_metrics(&mut self)
fn update_metrics(&mut self)
Update persist sink metrics.
Trait Implementations§
Auto Trait Implementations§
impl<D> Freeze for CorrectionV2<D>
impl<D> !RefUnwindSafe for CorrectionV2<D>
impl<D> Send for CorrectionV2<D>
impl<D> Sync for CorrectionV2<D>
impl<D> Unpin for CorrectionV2<D>
impl<D> !UnwindSafe for CorrectionV2<D>
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