org.apache.hadoop.hive.ql.optimizer

Class NestedColumnFieldPruningUtils

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.NestedColumnFieldPruningUtils

public class NestedColumnFieldPruningUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
NestedColumnFieldPruningUtils()

Method Summary

Modifier and Type	Method and Description
static FieldNode	addNodeByPath(FieldNode fieldNode, String path) Add a leaf node to the field tree if the specified path is not contained by current tree specified by the passed parameter field node.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NestedColumnFieldPruningUtils

public NestedColumnFieldPruningUtils()

Method Detail

addNodeByPath

public static FieldNode addNodeByPath(FieldNode fieldNode,
                                      String path)

Add a leaf node to the field tree if the specified path is not contained by current tree specified by the passed parameter field node.

Parameters:

fieldNode - the root of the column tree

path - contains the path from root to leaf

Returns:

the root of the newly built tree