| Package | Description |
|---|---|
| org.apache.druid.query.groupby.epinephelinae |
| Modifier and Type | Method and Description |
|---|---|
static Pair<Grouper<RowBasedGrouperHelper.RowBasedKey>,Accumulator<AggregateResult,ResultRow>> |
RowBasedGrouperHelper.createGrouperAccumulatorPair(GroupByQuery query,
GroupByQuery subquery,
GroupByQueryConfig config,
com.google.common.base.Supplier<ByteBuffer> bufferSupplier,
LimitedTemporaryStorage temporaryStorage,
com.fasterxml.jackson.databind.ObjectMapper spillMapper,
int mergeBufferSize)
Create a single-threaded grouper and accumulator.
|
static Pair<Grouper<RowBasedGrouperHelper.RowBasedKey>,Accumulator<AggregateResult,ResultRow>> |
RowBasedGrouperHelper.createGrouperAccumulatorPair(GroupByQuery query,
GroupByQuery subquery,
GroupByQueryConfig config,
com.google.common.base.Supplier<ByteBuffer> bufferSupplier,
ReferenceCountingResourceHolder<ByteBuffer> combineBufferHolder,
int concurrencyHint,
LimitedTemporaryStorage temporaryStorage,
com.fasterxml.jackson.databind.ObjectMapper spillMapper,
com.google.common.util.concurrent.ListeningExecutorService grouperSorter,
int priority,
boolean hasQueryTimeout,
long queryTimeoutAt,
int mergeBufferSize)
Create a
Grouper that groups according to the dimensions and aggregators in "query", along with
an Accumulator that accepts ResultRows and forwards them to the grouper. |
| Constructor and Description |
|---|
ConcurrentGrouper(GroupByQueryConfig groupByQueryConfig,
com.google.common.base.Supplier<ByteBuffer> bufferSupplier,
ReferenceCountingResourceHolder<ByteBuffer> combineBufferHolder,
Grouper.KeySerdeFactory<KeyType> keySerdeFactory,
Grouper.KeySerdeFactory<KeyType> combineKeySerdeFactory,
ColumnSelectorFactory columnSelectorFactory,
AggregatorFactory[] aggregatorFactories,
LimitedTemporaryStorage temporaryStorage,
com.fasterxml.jackson.databind.ObjectMapper spillMapper,
int concurrencyHint,
DefaultLimitSpec limitSpec,
boolean sortHasNonGroupingFields,
com.google.common.util.concurrent.ListeningExecutorService executor,
int priority,
boolean hasQueryTimeout,
long queryTimeoutAt) |
SpillingGrouper(com.google.common.base.Supplier<ByteBuffer> bufferSupplier,
Grouper.KeySerdeFactory<KeyType> keySerdeFactory,
ColumnSelectorFactory columnSelectorFactory,
AggregatorFactory[] aggregatorFactories,
int bufferGrouperMaxSize,
float bufferGrouperMaxLoadFactor,
int bufferGrouperInitialBuckets,
LimitedTemporaryStorage temporaryStorage,
com.fasterxml.jackson.databind.ObjectMapper spillMapper,
boolean spillingAllowed,
DefaultLimitSpec limitSpec,
boolean sortHasNonGroupingFields,
int mergeBufferSize) |
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