@Override
  public void afterMergeJoinOfDoubleIndexResults(Collection finalResult) {}
Asif :Invoked after merging the results of the two indexes, identified for evaluation of a
filter evalua table equi join condition across two regions ( Composite Condition). During this
merging the appropriate expansion & cutdown of the individual index results to the final query
level or CompositeGroupJunction level also occurs. Also for AND conditions, the cartesian with
the intermediate resultset will also occur.

@param finalResult A SelectResults object created after expansion cutdown of two index results
       for a filter evaluatable CompositeCondition ( which may have been cartesianed with the
       intermediate Results. The Results obtained may or may not be to the Top Level/
       CompositeGroupJunction level. The number & positions of iterators present will depend on
       whether it is invoked for an OR Junction or if Complete Expansion is true or not & the
       stage of evaluation it is in for an AND junction.
geode-core/src/main/java/org/apache/geode/cache/query/internal/QueryObserverAdapter.java