Package org.apache.druid.segment.nested

Interface NestedColumnTypeInspector

All Known Implementing Classes:

CompressedNestedDataComplexColumn, NestedDataColumnV3, NestedDataColumnV4, NestedDataColumnV5, NestedDataComplexColumn

public interface NestedColumnTypeInspector

Method Summary

Modifier and Type	Method	Description
ColumnType	getFieldLogicalType(List<NestedPathPart> path)	Reduces getFieldTypes(List) for the nested field column using ColumnType.leastRestrictiveType(ColumnType, ColumnType)
Set<ColumnType>	getFieldTypes(List<NestedPathPart> path)	Get all ColumnType for the nested field column
List<List<NestedPathPart>>	getNestedFields()	Get list of fields represented as a sequence of NestedPathPart
boolean	isNumeric(List<NestedPathPart> path)	Shortcut to check if a nested field column is TypeSignature.isNumeric(), useful when broadly choosing the type of vector selector to be used when dealing with the path

Method Details

getNestedFields

List<List<NestedPathPart>> getNestedFields()

Get list of fields represented as a sequence of NestedPathPart

getFieldTypes

@Nullable
Set<ColumnType> getFieldTypes(List<NestedPathPart> path)

Get all ColumnType for the nested field column

getFieldLogicalType

@Nullable
ColumnType getFieldLogicalType(List<NestedPathPart> path)

Reduces getFieldTypes(List) for the nested field column using ColumnType.leastRestrictiveType(ColumnType, ColumnType)

isNumeric

boolean isNumeric(List<NestedPathPart> path)

Shortcut to check if a nested field column is TypeSignature.isNumeric(), useful when broadly choosing the type of vector selector to be used when dealing with the path