Uses of Interface
org.apache.druid.segment.ColumnSelector

Packages that use ColumnSelector

Package	Description
org.apache.druid.query.filter
org.apache.druid.segment
org.apache.druid.segment.filter

Uses of ColumnSelector in org.apache.druid.query.filter

Methods in org.apache.druid.query.filter with parameters of type ColumnSelector

Modifier and Type	Method and Description
boolean	Filter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector) Indicates whether this filter supports selectivity estimation.
default boolean	BooleanFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	InDimFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)

Uses of ColumnSelector in org.apache.druid.segment

Subinterfaces of ColumnSelector in org.apache.druid.segment

Modifier and Type	Interface and Description
interface	QueryableIndex Direct interface to memory mapped segments.

Classes in org.apache.druid.segment that implement ColumnSelector

Modifier and Type	Class and Description
class	SimpleQueryableIndex

Methods in org.apache.druid.segment with parameters of type ColumnSelector

Modifier and Type	Method and Description
default BitmapIndex	VirtualColumn.getBitmapIndex(String columnName, ColumnSelector selector) Returns the BitmapIndex for efficient filtering on columns that support it.
BitmapIndex	VirtualColumns.getBitmapIndex(String columnName, ColumnSelector columnSelector)
static ColumnCapabilities	QueryableIndexStorageAdapter.getColumnCapabilities(ColumnSelector index, String columnName)
static ColumnInspector	QueryableIndexStorageAdapter.getColumnInspectorForIndex(ColumnSelector index)
default ColumnValueSelector<?>	VirtualColumn.makeColumnValueSelector(String columnName, ColumnSelector columnSelector, ReadableOffset offset) Returns similar ColumnValueSelector object as returned by VirtualColumn.makeColumnValueSelector(String, ColumnSelectorFactory) except this method has full access to the underlying column and can potentially provide a more efficient implementation.
ColumnValueSelector<?>	VirtualColumns.makeColumnValueSelector(String columnName, ColumnSelector columnSelector, ReadableOffset offset) Try to create an optimized value selector directly from a ColumnSelector.
default DimensionSelector	VirtualColumn.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelector columnSelector, ReadableOffset offset) Returns similar DimensionSelector object as returned by VirtualColumn.makeDimensionSelector(DimensionSpec, ColumnSelectorFactory) except this method has full access to the underlying column and can potentially provide a more efficient implementation.
DimensionSelector	VirtualColumns.makeDimensionSelector(DimensionSpec dimensionSpec, ColumnSelector columnSelector, ReadableOffset offset) Try to create an optimized dimension (string) selector directly from a ColumnSelector.
MultiValueDimensionVectorSelector	VirtualColumns.makeMultiValueDimensionVectorSelector(DimensionSpec dimensionSpec, ColumnSelector columnSelector, ReadableVectorOffset offset) Try to create an optimized multi value dimension (string) vector selector, directly from a ColumnSelector.
default MultiValueDimensionVectorSelector	VirtualColumn.makeMultiValueVectorDimensionSelector(DimensionSpec dimensionSpec, ColumnSelector columnSelector, ReadableVectorOffset offset) Returns similar SingleValueDimensionVectorSelector object as returned by VirtualColumn.makeSingleValueVectorDimensionSelector(DimensionSpec, ColumnSelector, ReadableVectorOffset) except this method has full access to the underlying column and can potentially provide a more efficient implementation.
SingleValueDimensionVectorSelector	VirtualColumns.makeSingleValueDimensionVectorSelector(DimensionSpec dimensionSpec, ColumnSelector columnSelector, ReadableVectorOffset offset) Try to create an optimized single value dimension (string) vector selector, directly from a ColumnSelector.
default SingleValueDimensionVectorSelector	VirtualColumn.makeSingleValueVectorDimensionSelector(DimensionSpec dimensionSpec, ColumnSelector columnSelector, ReadableVectorOffset offset) Returns similar SingleValueDimensionVectorSelector object as returned by VirtualColumn.makeSingleValueVectorDimensionSelector(DimensionSpec, ColumnSelector, ReadableVectorOffset) except this method has full access to the underlying column and can potentially provide a more efficient implementation.
default VectorObjectSelector	VirtualColumn.makeVectorObjectSelector(String columnName, ColumnSelector columnSelector, ReadableVectorOffset offset) Returns similar VectorObjectSelector object as returned by VirtualColumn.makeVectorObjectSelector(String, VectorColumnSelectorFactory) except this method has full access to the underlying column and can potentially provide a more efficient implementation.
VectorObjectSelector	VirtualColumns.makeVectorObjectSelector(String columnName, ColumnSelector columnSelector, ReadableVectorOffset offset) Try to create an optimized vector object selector directly from a ColumnSelector.If this method returns null, callers should try to fallback to VirtualColumns.makeVectorObjectSelector(String, VectorColumnSelectorFactory) instead.
default VectorValueSelector	VirtualColumn.makeVectorValueSelector(String columnName, ColumnSelector columnSelector, ReadableVectorOffset offset) Returns similar VectorValueSelector object as returned by VirtualColumn.makeVectorValueSelector(String, VectorColumnSelectorFactory) except this method has full access to the underlying column and can potentially provide a more efficient implementation.
VectorValueSelector	VirtualColumns.makeVectorValueSelector(String columnName, ColumnSelector columnSelector, ReadableVectorOffset offset) Try to create an optimized vector value selector directly from a ColumnSelector.

Constructors in org.apache.druid.segment with parameters of type ColumnSelector

Constructor and Description
ColumnSelectorBitmapIndexSelector(BitmapFactory bitmapFactory, VirtualColumns virtualColumns, ColumnSelector index)

Uses of ColumnSelector in org.apache.druid.segment.filter

Methods in org.apache.druid.segment.filter with parameters of type ColumnSelector

Modifier and Type	Method and Description
boolean	DimensionPredicateFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	ExpressionFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	ColumnComparisonFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	NotFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	SelectorFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	JavaScriptFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	LikeFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	TrueFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	FalseFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	BoundFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
boolean	SpatialFilter.supportsSelectivityEstimation(ColumnSelector columnSelector, BitmapIndexSelector indexSelector)
static boolean	Filters.supportsSelectivityEstimation(Filter filter, String dimension, ColumnSelector columnSelector, BitmapIndexSelector indexSelector)