code: public List<Row> postReconciliationProcessing(List<IndexExpression> clause, List<Row> rows)
      {
          return rows;
      }
docs: Combines index query results from multiple nodes. This is done by the coordinator node after it has reconciled
  the replica responses.
  
  @param clause A list of {@link IndexExpression}s
  @param rows The index query results to be combined
  @return The combination of the index query results