org.apache.hadoop.hive.ql.optimizer.listbucketingpruner
Class LBProcFactory

java.lang.Object
  org.apache.hadoop.hive.ql.optimizer.PrunerOperatorFactory
      org.apache.hadoop.hive.ql.optimizer.listbucketingpruner.LBProcFactory

public final class LBProcFactory
extends PrunerOperatorFactory

Operator factory for list bucketing pruning processing of operator graph We find all the filter operators that appear just beneath the table scan operators. We then pass the filter to the list bucketing to construct a pruner for that table alias and store a mapping from the table scan operator to that pruner. We call that list bucketing during plan generation.

Nested Class Summary

static class

LBProcFactory.LBPRFilterPruner Determines the list bucketing pruner for the filter.

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.optimizer.PrunerOperatorFactory

PrunerOperatorFactory.DefaultPruner, PrunerOperatorFactory.FilterPruner

Method Summary

static NodeProcessor

getFilterProc()

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

getDefaultProc

Methods inherited from class java.lang.Object

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

Method Detail

getFilterProc

public static NodeProcessor getFilterProc()