org.apache.hadoop.hive.ql.optimizer.optiq
Class JoinUtil

java.lang.Object
  org.apache.hadoop.hive.ql.optimizer.optiq.JoinUtil

public class JoinUtil
extends Object

Utility for inspecting Join Conditions.

Main Elements:
1. JoinPredicateInfo - represents Join Condition.
2. JoinLeafPredicateInfo - represents leaf predicates with in join condition. TODO: Move this to Optiq Framework

Nested Class Summary

static class	JoinUtil.JoinLeafPredicateInfo JoinLeafPredicateInfo represents leaf predicate in Join condition (conjuctive lement).
static class	JoinUtil.JoinPredicateInfo JoinPredicateInfo represents Join condition; JoinPredicate Info uses JoinLeafPredicateInfo to represent individual conjunctive elements in the predicate. JoinPredicateInfo = JoinLeafPredicateInfo1 and JoinLeafPredicateInfo2...

Constructor Summary

JoinUtil()

Method Summary

static void

todo(String s) Deprecated.

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinUtil

public JoinUtil()

Method Detail

todo

@Deprecated
public static void todo(String s)

Deprecated.