public static int populateJoinKeyValue(List<ExprNodeEvaluator>[] outMap,
      Map<Byte, List<ExprNodeDesc>> inputMap, int posBigTableAlias, Configuration conf) throws HiveException {
    return populateJoinKeyValue(outMap, inputMap, null, posBigTableAlias, conf);
  }
Represents the join result between two tables
ql/src/java/org/apache/hadoop/hive/ql/exec/JoinUtil.java