Uses of Class
org.apache.iotdb.db.mpp.aggregation.Aggregator

Packages that use Aggregator

Package	Description
org.apache.iotdb.db.mpp.aggregation.slidingwindow
org.apache.iotdb.db.mpp.execution.operator
org.apache.iotdb.db.mpp.execution.operator.process
org.apache.iotdb.db.mpp.execution.operator.process.last
org.apache.iotdb.db.mpp.execution.operator.source

Uses of Aggregator in org.apache.iotdb.db.mpp.aggregation.slidingwindow

Subclasses of Aggregator in org.apache.iotdb.db.mpp.aggregation.slidingwindow

Modifier and Type	Class	Description
class	EmptyQueueSlidingWindowAggregator	When calculating MAX_TIME and LAST_VALUE (the MIN_TIME and FIRST_VALUE in descending order), the aggregation result always appears in the most recent pre-aggregation result.
class	MonotonicQueueSlidingWindowAggregator	When computing MAX_VALUE, MIN_VALUE, EXTREME, we only add partial aggregation results that maintain monotonicity to queue.
class	NormalQueueSlidingWindowAggregator	When calculating MIN_TIME and FIRST_VALUE (MAX_TIME and LAST_VALUE in descending order), the aggregated result always appears at the head of the queue.
class	SlidingWindowAggregator
class	SmoothQueueSlidingWindowAggregator	The aggregation result is calculated from all pre-aggregation results in the currently maintained queue when calculating the COUNT, SUM, and AVG.

Uses of Aggregator in org.apache.iotdb.db.mpp.execution.operator

Method parameters in org.apache.iotdb.db.mpp.execution.operator with type arguments of type Aggregator

Modifier and Type	Method	Description
static void	AggregationUtil.appendAggregationResult(org.apache.iotdb.tsfile.read.common.block.TsBlockBuilder tsBlockBuilder, java.util.List<? extends Aggregator> aggregators, ITimeRangeIterator timeRangeIterator)	Append a row of aggregation results to the result tsBlock.
static org.apache.iotdb.tsfile.utils.Pair<java.lang.Boolean,org.apache.iotdb.tsfile.read.common.block.TsBlock>	AggregationUtil.calculateAggregationFromRawData(org.apache.iotdb.tsfile.read.common.block.TsBlock inputTsBlock, java.util.List<Aggregator> aggregators, org.apache.iotdb.tsfile.read.common.TimeRange curTimeRange, boolean ascending)	Calculate aggregation value on the time range from the tsBlock containing raw data.
static long	AggregationUtil.calculateMaxAggregationResultSizeForLastQuery(java.util.List<Aggregator> aggregators, org.apache.iotdb.commons.path.PartialPath inputSeriesPath)
static boolean	AggregationUtil.isAllAggregatorsHasFinalResult(java.util.List<Aggregator> aggregators)

Uses of Aggregator in org.apache.iotdb.db.mpp.execution.operator.process

Fields in org.apache.iotdb.db.mpp.execution.operator.process with type parameters of type Aggregator

Modifier and Type	Field	Description
protected java.util.List<Aggregator>	SingleInputAggregationOperator.aggregators

Constructor parameters in org.apache.iotdb.db.mpp.execution.operator.process with type arguments of type Aggregator

Constructor	Description
AggregationOperator(OperatorContext operatorContext, java.util.List<Aggregator> aggregators, ITimeRangeIterator timeRangeIterator, java.util.List<Operator> children, long maxReturnSize)
RawDataAggregationOperator(OperatorContext operatorContext, java.util.List<Aggregator> aggregators, ITimeRangeIterator timeRangeIterator, Operator child, boolean ascending, long maxReturnSize)
SingleInputAggregationOperator(OperatorContext operatorContext, java.util.List<Aggregator> aggregators, Operator child, boolean ascending, ITimeRangeIterator timeRangeIterator, long maxReturnSize)
SlidingWindowAggregationOperator(OperatorContext operatorContext, java.util.List<Aggregator> aggregators, ITimeRangeIterator timeRangeIterator, Operator child, boolean ascending, GroupByTimeParameter groupByTimeParameter, long maxReturnSize)

Uses of Aggregator in org.apache.iotdb.db.mpp.execution.operator.process.last

Methods in org.apache.iotdb.db.mpp.execution.operator.process.last that return types with arguments of type Aggregator

Modifier and Type	Method	Description
static java.util.List<Aggregator>	LastQueryUtil.createAggregators(org.apache.iotdb.tsfile.file.metadata.enums.TSDataType dataType)

Uses of Aggregator in org.apache.iotdb.db.mpp.execution.operator.source

Fields in org.apache.iotdb.db.mpp.execution.operator.source with type parameters of type Aggregator

Modifier and Type	Field	Description
protected java.util.List<Aggregator>	AbstractSeriesAggregationScanOperator.aggregators

Constructor parameters in org.apache.iotdb.db.mpp.execution.operator.source with type arguments of type Aggregator

Constructor	Description
AbstractSeriesAggregationScanOperator(PlanNodeId sourceId, OperatorContext context, SeriesScanUtil seriesScanUtil, int subSensorSize, java.util.List<Aggregator> aggregators, ITimeRangeIterator timeRangeIterator, boolean ascending, GroupByTimeParameter groupByTimeParameter, long maxReturnSize)
AlignedSeriesAggregationScanOperator(PlanNodeId sourceId, AlignedPath seriesPath, OperatorContext context, java.util.List<Aggregator> aggregators, ITimeRangeIterator timeRangeIterator, org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter, boolean ascending, GroupByTimeParameter groupByTimeParameter, long maxReturnSize)
SeriesAggregationScanOperator(PlanNodeId sourceId, org.apache.iotdb.commons.path.PartialPath seriesPath, java.util.Set<java.lang.String> allSensors, OperatorContext context, java.util.List<Aggregator> aggregators, ITimeRangeIterator timeRangeIterator, org.apache.iotdb.tsfile.read.filter.basic.Filter timeFilter, boolean ascending, GroupByTimeParameter groupByTimeParameter, long maxReturnSize)