Phoenix 180

First revision for review.  There are some open points here.  Still no test case added to consume the stats.  Will do the performance test once the system is available with me.
You mean the empty line or the 
    @Override
     public UpdateStatisticsStatement updateStatistics(NamedTableNode table) {
          return new ExecutableUpdateStatisticsStatement(table, 0);
        }
This is just an implementation in the ParseNodeFactory