org.apache.hadoop.hive.ql.optimizer

Class NonBlockingOpDeDupProc

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.Transform

org.apache.hadoop.hive.ql.optimizer.NonBlockingOpDeDupProc

public class NonBlockingOpDeDupProc
extends Transform

merges SEL-SEL or FIL-FIL into single operator

Constructor Summary

Constructors

Constructor and Description
NonBlockingOpDeDupProc()

Method Summary

Modifier and Type	Method and Description
ParseContext	transform(ParseContext pctx) All transformation steps implement this interface.
static <K,V> Map<K,V>	zipToMap(List<K> keys, List<V> values)

Methods inherited from class org.apache.hadoop.hive.ql.optimizer.Transform

beginPerfLogging, endPerfLogging, endPerfLogging

Methods inherited from class java.lang.Object

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

Constructor Detail

NonBlockingOpDeDupProc

public NonBlockingOpDeDupProc()

Method Detail

transform

public ParseContext transform(ParseContext pctx)
                       throws SemanticException

Description copied from class: Transform

All transformation steps implement this interface.

Specified by:

transform in class Transform

Parameters:

pctx - input parse context

Returns:

ParseContext

Throws:

SemanticException

zipToMap

public static <K,V> Map<K,V> zipToMap(List<K> keys,
                                      List<V> values)