Package org.apache.drill.exec.physical.impl.join

Interface Summary

Interface	Description
BatchSizePredictor	This class predicts the sizes of batches given an input batch.
BatchSizePredictor.Factory	A factory for creating BatchSizePredictors.
HashJoinHelperSizeCalculator
HashJoinMemoryCalculator	This class is responsible for managing the memory calculations for the HashJoin operator.
HashJoinMemoryCalculator.BuildSidePartitioning	The interface representing the HashJoinStateCalculator corresponding to the HashJoinState.BUILD_SIDE_PARTITIONING state.
HashJoinMemoryCalculator.PartitionStat
HashJoinMemoryCalculator.PostBuildCalculations	The interface representing the HashJoinStateCalculator corresponding to the HashJoinState.POST_BUILD_CALCULATIONS state.
HashJoinProbe
HashJoinStateCalculator<T extends HashJoinStateCalculator<?>>	A HashJoinStateCalculator is a piece of code that compute the memory requirements for one of the states in the HashJoinState enum.
HashTableSizeCalculator
JoinWorker
NestedLoopJoin	Interface for the nested loop join operator.
RowKeyJoin	Interface for a row key join

Class Summary

Class	Description
BatchSizePredictorImpl
BatchSizePredictorImpl.Factory
HashJoinBatch	Implements the runtime execution for the Hash-Join operator supporting INNER, LEFT OUTER, RIGHT OUTER, and FULL OUTER joins
HashJoinBatch.HashJoinSpilledPartition	This holds information about the spilled partitions for the build and probe side.
HashJoinBatchCreator
HashJoinHelper
HashJoinHelperSizeCalculatorImpl
HashJoinHelperUnusedSizeImpl	This calculator class is used when the Hash-Join_helper is not used (i.e., return size of zero)
HashJoinMechanicalMemoryCalculator
HashJoinMechanicalMemoryCalculator.MechanicalBuildSidePartitioning
HashJoinMechanicalMemoryCalculator.MechanicalPostBuildCalculations
HashJoinMemoryCalculator.BatchStat
HashJoinMemoryCalculator.PartitionStatSet	This class represents the memory size statistics for an entire set of partitions.
HashJoinMemoryCalculatorImpl
HashJoinMemoryCalculatorImpl.BuildSidePartitioningImpl	At this point we need to reserve memory for the following: An incoming batch An incomplete batch for each partition If there is available memory we keep the batches for each partition in memory.
HashJoinMemoryCalculatorImpl.NoopBuildSidePartitioningImpl
HashJoinMemoryCalculatorImpl.NoopPostBuildCalculationsImpl
HashJoinMemoryCalculatorImpl.PostBuildCalculationsImpl	In this state, we need to make sure there is enough room to spill probe side batches, if spilling is necessary.
HashJoinProbeTemplate
HashTableSizeCalculatorConservativeImpl
HashTableSizeCalculatorLeanImpl
JoinStatus	Maintain join state.
JoinTemplate	Merge Join implementation using RecordIterator.
JoinUtils
LateralJoinBatch	RecordBatch implementation for the lateral join operator.
LateralJoinBatchCreator
MergeJoinBatch	A join operator that merges two sorted streams using a record iterator.
MergeJoinCreator
NestedLoopJoinBatch
NestedLoopJoinBatchCreator
NestedLoopJoinTemplate
RowKeyJoinBatch
RowKeyJoinBatchCreator

Enum Summary

Enum	Description
HashJoinBatch.Metric
HashJoinProbe.ProbeState
HashJoinState
JoinUtils.JoinCategory
JoinWorker.JoinOutcome
RowKeyJoin.RowKeyJoinState	Enum for RowKeyJoin internal state.