Class ChildLink

Metadata associated with a parent-child relationship appearing in a PlanNode.

Inheritance

object

ChildLink

Implements

IDirectResponseSchema

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Google.Apis.Spanner.v1.Data

Assembly: Google.Apis.Spanner.v1.dll

Syntax

public class ChildLink : IDirectResponseSchema

Properties

ChildIndex

The node to which the link points.

Declaration

[JsonProperty("childIndex")]
public virtual int? ChildIndex { get; set; }

Property Value

Type	Description
int?

ETag

The ETag of the item.

Declaration

public virtual string ETag { get; set; }

Property Value

Type	Description
string

Type

The type of the link. For example, in Hash Joins this could be used to distinguish between the build child and the probe child, or in the case of the child being an output variable, to represent the tag associated with the output variable.

Declaration

[JsonProperty("type")]
public virtual string Type { get; set; }

Property Value

Type	Description
string

Variable

Only present if the child node is SCALAR and corresponds to an output variable of the parent node. The field carries the name of the output variable. For example, a TableScan operator that reads rows from a table will have child links to the SCALAR nodes representing the output variables created for each column that is read by the operator. The corresponding variable fields will be set to the variable names assigned to the columns.

Declaration

[JsonProperty("variable")]
public virtual string Variable { get; set; }

Property Value

Type	Description
string

Implements

IDirectResponseSchema