Class VariantUnshredder

Namespace

Apache.Arrow.Operations.Shredding

Assembly

Apache.Arrow.Operations.dll

Reconstructs VariantValues from shredded (value, typed_value) pairs according to a ShredSchema. The residual Value bytes are interpreted against the column-level variant metadata supplied to Reconstruct(ShredResult, ShredSchema, ReadOnlySpan<byte>).

public static class VariantUnshredder

Inheritance

object

VariantUnshredder

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

Reconstruct(ShredResult, ShredSchema, ReadOnlySpan<byte>)

Reconstructs a variant value from a shredded result.

public static VariantValue? Reconstruct(ShredResult shredded, ShredSchema schema, ReadOnlySpan<byte> metadata)

Parameters

shredded ShredResult

The shredded (value, typed_value) pair, or null for a SQL-NULL row as produced by Shred(IEnumerable<VariantValue?>, ShredSchema).

schema ShredSchema

The shredding schema that was used to produce the result.

metadata ReadOnlySpan<byte>

The column-level variant metadata bytes.

Returns

VariantValue?

The reconstructed VariantValue, or null if shredded is null (a SQL-NULL row) or the field is missing (both value and typed_value are null).