org.apache.hadoop.hive.ql.optimizer.unionproc
Class UnionProcFactory.MapUnion

java.lang.Object
  org.apache.hadoop.hive.ql.optimizer.unionproc.UnionProcFactory.MapUnion

All Implemented Interfaces:

NodeProcessor

Enclosing class:

UnionProcFactory

public static class UnionProcFactory.MapUnion
extends Object
implements NodeProcessor

Map-only subquery followed by Union.

Constructor Summary

UnionProcFactory.MapUnion()

Method Summary

Object

process(Node nd, Stack<Node> stack, NodeProcessorCtx procCtx, Object... nodeOutputs) Generic process for all ops that don't have specific implementations.

Methods inherited from class java.lang.Object

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

Constructor Detail

UnionProcFactory.MapUnion

public UnionProcFactory.MapUnion()

Method Detail

process

public Object process(Node nd,
                      Stack<Node> stack,
                      NodeProcessorCtx procCtx,
                      Object... nodeOutputs)
               throws SemanticException

Description copied from interface: NodeProcessor

Generic process for all ops that don't have specific implementations.

Specified by:

process in interface NodeProcessor

Parameters:

nd - operator to process

procCtx - operator processor context

nodeOutputs - A variable argument list of outputs from other nodes in the walk

Returns:

Object to be returned by the process call

Throws:

SemanticException