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

Packages that use VirtualColumn

Package	Description
org.apache.druid.frame.util
org.apache.druid.query
org.apache.druid.query.groupby
org.apache.druid.query.topn
org.apache.druid.segment
org.apache.druid.segment.join
org.apache.druid.segment.join.filter
org.apache.druid.segment.virtual

Uses of VirtualColumn in org.apache.druid.frame.util

Classes in org.apache.druid.frame.util that implement VirtualColumn

Modifier and Type	Class	Description
class	SettableLongVirtualColumn	Virtual column that returns a changeable value, via SettableLongVirtualColumn.setValue(long).

Uses of VirtualColumn in org.apache.druid.query

Methods in org.apache.druid.query that return VirtualColumn

Modifier and Type	Method	Description
VirtualColumn	UnnestDataSource.getVirtualColumn()

Methods in org.apache.druid.query with parameters of type VirtualColumn

Modifier and Type	Method	Description
static UnnestDataSource	UnnestDataSource.create(DataSource base, VirtualColumn virtualColumn, DimFilter unnestFilter)
Druids.ScanQueryBuilder	Druids.ScanQueryBuilder.virtualColumns(VirtualColumn... virtualColumns)
Druids.SearchQueryBuilder	Druids.SearchQueryBuilder.virtualColumns(VirtualColumn... vc)
Druids.TimeseriesQueryBuilder	Druids.TimeseriesQueryBuilder.virtualColumns(VirtualColumn... virtualColumns)

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

Methods in org.apache.druid.query.groupby with parameters of type VirtualColumn

Modifier and Type	Method	Description
GroupByQuery.Builder	GroupByQuery.Builder.setVirtualColumns(VirtualColumn... virtualColumns)

Uses of VirtualColumn in org.apache.druid.query.topn

Methods in org.apache.druid.query.topn with parameters of type VirtualColumn

Modifier and Type	Method	Description
TopNQueryBuilder	TopNQueryBuilder.virtualColumns(VirtualColumn... virtualColumns)

Uses of VirtualColumn in org.apache.druid.segment

Methods in org.apache.druid.segment that return VirtualColumn

Modifier and Type	Method	Description
VirtualColumn	UnnestStorageAdapter.getUnnestColumn()
VirtualColumn	VirtualColumns.getVirtualColumn(String columnName)
VirtualColumn[]	VirtualColumns.getVirtualColumns()

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

Modifier and Type	Method	Description
static VirtualColumns	VirtualColumns.create(VirtualColumn... virtualColumns)
String	UnnestStorageAdapter.getUnnestInputIfDirectAccess(VirtualColumn unnestColumn)	Returns the input of UnnestStorageAdapter.unnestColumn, if it's a direct access; otherwise returns null.

Method parameters in org.apache.druid.segment with type arguments of type VirtualColumn

Modifier and Type	Method	Description
static VirtualColumns	VirtualColumns.create(List<VirtualColumn> virtualColumns)

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

Constructor	Description
UnnestColumnValueSelectorCursor(Cursor cursor, ColumnSelectorFactory baseColumnSelectorFactory, VirtualColumn unnestColumn, String outputColumnName)
UnnestDimensionCursor(Cursor cursor, ColumnSelectorFactory baseColumnSelectorFactory, VirtualColumn unnestColumn, String outputColumnName)
UnnestStorageAdapter(StorageAdapter baseAdapter, VirtualColumn unnestColumn, DimFilter unnestFilter)

Uses of VirtualColumn in org.apache.druid.segment.join

Method parameters in org.apache.druid.segment.join with type arguments of type VirtualColumn

Modifier and Type	Method	Description
Set<String>	HashJoinSegmentStorageAdapter.determineBaseColumnsWithPreAndPostJoinVirtualColumns(VirtualColumns virtualColumns, List<VirtualColumn> preJoinVirtualColumns, List<VirtualColumn> postJoinVirtualColumns)	Return a String set containing the name of columns that belong to the base table (including any pre-join virtual columns as well).

Uses of VirtualColumn in org.apache.druid.segment.join.filter

Methods in org.apache.druid.segment.join.filter that return types with arguments of type VirtualColumn

Modifier and Type	Method	Description
List<VirtualColumn>	JoinFilterPreAnalysis.getPostJoinVirtualColumns()
Set<VirtualColumn>	JoinFilterSplit.getPushDownVirtualColumns()

Method parameters in org.apache.druid.segment.join.filter with type arguments of type VirtualColumn

Modifier and Type	Method	Description
void	JoinableClauses.splitVirtualColumns(VirtualColumns virtualColumns, List<VirtualColumn> preJoinVirtualColumns, List<VirtualColumn> postJoinVirtualColumns)

Constructor parameters in org.apache.druid.segment.join.filter with type arguments of type VirtualColumn

Constructor	Description
Builder(JoinFilterPreAnalysisKey key, List<VirtualColumn> postJoinVirtualColumns)
JoinFilterSplit(Filter baseTableFilter, Filter joinTableFilter, Set<VirtualColumn> pushDownVirtualColumns)

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

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

Modifier and Type	Class	Description
class	ExpressionVirtualColumn
class	FallbackVirtualColumn	A virtual column that picks one column or another based on whether they exist.
class	ListFilteredVirtualColumn	VirtualColumn form of ListFilteredDimensionSpec, powered by ForwardingFilteredDimensionSelector
class	NestedFieldVirtualColumn	Optimized virtual column that can make direct selectors into a NestedDataComplexColumn or any associated nested fields (NestedFieldDictionaryEncodedColumn) including using their indexes.