@Override
  public boolean isKeyDestroyed(Object key) {
    if (!serverCQResultsCache.contains(key)) {
      return false;
    }
    return serverCQResultsCache.isKeyDestroyed(key);
  }
Returns the size of the CQ Result key cache.

@return size of CQ Result key cache.
geode-cq/src/main/java/org/apache/geode/cache/query/cq/internal/ServerCQImpl.java