Class LeafColumn

Namespace

Plank.Schema

Assembly

Plank.dll

Identifies a flattened leaf column owned by a ParquetSchema.

public sealed class LeafColumn

Inheritance

object

LeafColumn

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

Leaf columns are derived from the schema definition tree and are used to select columns for column-oriented reads and writes. Obtain them from LeafColumns.

Properties

Converter

Gets the custom CLR value converter, if one is declared.

public ParquetValueConverter? Converter { get; }

Property Value

ParquetValueConverter

FieldId

Gets the schema field ID, if one is declared.

public int? FieldId { get; }

Property Value

int?

LogicalType

Gets the leaf's logical type, if one is declared.

public LogicalType? LogicalType { get; }

Property Value

LogicalType

MaxDefinitionLevel

Gets the maximum definition level encoded for this leaf.

public int MaxDefinitionLevel { get; }

Property Value

int

MaxRepetitionLevel

Gets the maximum repetition level encoded for this leaf.

public int MaxRepetitionLevel { get; }

Property Value

int

Options

Gets the leaf's encoding and physical storage options.

public ColumnOptions Options { get; }

Property Value

ColumnOptions

Ordinal

Gets the leaf's ordinal in the flattened schema.

public int Ordinal { get; }

Property Value

int

PageStrategy

Gets the writer page strategy declared for this leaf, if any.

public IPageStrategy? PageStrategy { get; }

Property Value

IPageStrategy

Path

Gets the complete dot-separated path to the leaf.

public string Path { get; }

Property Value

string

PhysicalType

Gets the leaf's physical Parquet type.

public ParquetPhysicalType PhysicalType { get; }

Property Value

ParquetPhysicalType