Interface PlanNode.ChildLinkOrBuilder (6.25.0)

Version 6.25.0

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public static interface PlanNode.ChildLinkOrBuilder extends MessageOrBuilder

Implements

MessageOrBuilder

Methods

getChildIndex()

public abstract int getChildIndex()

The node to which the link points.

int32 child_index = 1;

Returns

Type	Description
int	The childIndex.

getType()

public abstract String getType()

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.

string type = 2;

Returns

Type	Description
String	The type.

getTypeBytes()

public abstract ByteString getTypeBytes()

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.

string type = 2;

Returns

Type	Description
ByteString	The bytes for type.

getVariable()

public abstract String getVariable()

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.

string variable = 3;

Returns

Type	Description
String	The variable.

getVariableBytes()

public abstract ByteString getVariableBytes()

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.

string variable = 3;

Returns

Type	Description
ByteString	The bytes for variable.