Method get_stat_values

sql/sql_statistics.cc:906–921

  */

  bool get_stat_values(Table_statistics *read_stats)
  {
    bool res;
    read_stats->cardinality_is_null= TRUE;
    read_stats->cardinality= 0;
    if ((res= find_stat()))
    {
      Field *stat_field= stat_table->field[TABLE_STAT_CARDINALITY];
      if (!stat_field->is_null())
      {
        read_stats->cardinality_is_null= FALSE;
        read_stats->cardinality= stat_field->val_int();
      }
    }
    return res;
  } 
};