Uses of Interface
org.apache.druid.query.groupby.epinephelinae.GroupingSelector

Packages that use GroupingSelector

Package	Description
org.apache.druid.query.groupby
org.apache.druid.query.groupby.epinephelinae.column
org.apache.druid.query.groupby.epinephelinae.vector
org.apache.druid.segment.virtual

Uses of GroupingSelector in org.apache.druid.query.groupby

Method parameters in org.apache.druid.query.groupby with type arguments of type GroupingSelector

Modifier and Type	Method	Description
static int	GroupingEngine.getCardinalityForArrayAggregation(GroupByQueryConfig querySpecificConfig, GroupByQuery query, ColumnInspector columnInspector, List<? extends GroupingSelector> groupingSelectors, ByteBuffer buffer)	Returns the cardinality of array needed to do array-based aggregation, or -1 if array-based aggregation is impossible.

Uses of GroupingSelector in org.apache.druid.query.groupby.epinephelinae.column

Classes in org.apache.druid.query.groupby.epinephelinae.column that implement GroupingSelector

Modifier and Type	Class	Description
class	GroupByColumnSelectorPlus

Uses of GroupingSelector in org.apache.druid.query.groupby.epinephelinae.vector

Subinterfaces of GroupingSelector in org.apache.druid.query.groupby.epinephelinae.vector

Modifier and Type	Interface	Description
interface	GroupByVectorColumnSelector	Column processor for groupBy dimensions.

Classes in org.apache.druid.query.groupby.epinephelinae.vector that implement GroupingSelector

Modifier and Type	Class	Description
class	DictionaryBuildingComplexGroupByVectorColumnSelector	Selector that groups complex columns using a dictionary.
class	DictionaryBuildingGroupByVectorColumnSelector<T>	Base class for GroupByVectorColumnSelector that build dictionaries for values that are not natively dictionary-encoded.
class	DictionaryBuildingSingleValueStringGroupByVectorColumnSelector	A GroupByVectorColumnSelector that builds an internal String<->Integer dictionary, used for grouping single-valued STRING columns which are not natively dictionary encoded, e.g.
class	DoubleGroupByVectorColumnSelector
class	FloatGroupByVectorColumnSelector
class	LongGroupByVectorColumnSelector
class	NilGroupByVectorColumnSelector	Treats all rows as null.
class	NullableDoubleGroupByVectorColumnSelector
class	NullableFloatGroupByVectorColumnSelector
class	NullableLongGroupByVectorColumnSelector
class	SingleValueStringGroupByVectorColumnSelector

Uses of GroupingSelector in org.apache.druid.segment.virtual

Classes in org.apache.druid.segment.virtual that implement GroupingSelector

Modifier and Type	Class	Description
class	ExpressionDeferredGroupByVectorColumnSelector	Implementation of GroupByVectorColumnSelector that uses a wide key representing all expression inputs to enable deferring expression evaluation to ExpressionDeferredGroupByVectorColumnSelector.writeKeyToResultRow(MemoryPointer, int, ResultRow, int).