@Override
  public void invalidateCqResultKeys() {
    serverCQResultsCache.invalidate();
  }
Returns if the passed key is part of the CQs result set. This method needs to be called once
the CQ result key caching is completed (cqResultsCacheInitialized is true).

@return true if key is in the Results Cache.
geode-cq/src/main/java/org/apache/geode/cache/query/cq/internal/ServerCQImpl.java