Increased precision for status variables Rows_sent and Rows_read from long to longlong

Fixed that status variables 'empty_queries', 'access_denied_errors' and 'lost_connections' are propageted to global status.
This should also remove some warnings with VC++



sql/mysqld.cc:
  Increased precision for status variables Rows_sent and Rows_read from long to longlong
sql/sql_class.cc:
  Increased precision for status variables Rows_sent and Rows_read from long to longlong
sql/sql_class.h:
  Increased precision for status variables Rows_sent and Rows_read from long to longlong
  Fixed that status variables 'empty_queries', 'access_denied_errors' and 'lost_connections' are propageted to global status.

sql/mysqld.cc

@@ -8052,8 +8052,8 @@ SHOW_VAR status_vars[]= {
   {"Opened_tables",            (char*) offsetof(STATUS_VAR, opened_tables), SHOW_LONG_STATUS},
   {"Opened_table_definitions", (char*) offsetof(STATUS_VAR, opened_shares), SHOW_LONG_STATUS},
   {"Prepared_stmt_count",      (char*) &show_prepared_stmt_count, SHOW_FUNC},
-  {"Rows_sent",                (char*) offsetof(STATUS_VAR, rows_sent), SHOW_LONG_STATUS},
-  {"Rows_read",                (char*) offsetof(STATUS_VAR, rows_read), SHOW_LONG_STATUS},
+  {"Rows_sent",                (char*) offsetof(STATUS_VAR, rows_sent), SHOW_LONGLONG_STATUS},
+  {"Rows_read",                (char*) offsetof(STATUS_VAR, rows_read), SHOW_LONGLONG_STATUS},
 #ifdef HAVE_QUERY_CACHE
   {"Qcache_free_blocks",       (char*) &query_cache.free_memory_blocks, SHOW_LONG_NOFLUSH},
   {"Qcache_free_memory",       (char*) &query_cache.free_memory, SHOW_LONG_NOFLUSH},

sql/sql_class.cc

@@ -1190,6 +1190,8 @@ void add_to_status(STATUS_VAR *to_var, STATUS_VAR *from_var)
   /* Handle the not ulong variables. See end of system_status_var */
   to_var->bytes_received=       from_var->bytes_received;
   to_var->bytes_sent+=          from_var->bytes_sent;
+  to_var->rows_read+=           from_var->rows_read;
+  to_var->rows_sent+=           from_var->rows_sent;
   to_var->binlog_bytes_written= from_var->binlog_bytes_written;
   to_var->cpu_time+=            from_var->cpu_time;
   to_var->busy_time+=           from_var->busy_time;
@@ -1223,6 +1225,8 @@ void add_diff_to_status(STATUS_VAR *to_var, STATUS_VAR *from_var,
   to_var->bytes_received+=       from_var->bytes_received -
                                  dec_var->bytes_received;
   to_var->bytes_sent+=           from_var->bytes_sent - dec_var->bytes_sent;
+  to_var->rows_read+=            from_var->rows_read - dec_var->rows_read;
+  to_var->rows_sent+=            from_var->rows_sent - dec_var->rows_sent;
   to_var->binlog_bytes_written+= from_var->binlog_bytes_written -
                                  dec_var->binlog_bytes_written;
   to_var->cpu_time+=             from_var->cpu_time - dec_var->cpu_time;

sql/sql_class.h

@@ -468,8 +468,6 @@ typedef struct system_status_var
   ulong select_range_count;
   ulong select_range_check_count;
   ulong select_scan_count;
-  ulong rows_read;
-  ulong rows_sent;
   ulong long_query_count;
   ulong filesort_merge_passes;
   ulong filesort_range_count;
@@ -483,6 +481,9 @@ typedef struct system_status_var
   ulong com_stmt_fetch;
   ulong com_stmt_reset;
   ulong com_stmt_close;
+  ulong empty_queries;
+  ulong access_denied_errors;
+  ulong lost_connections;
   /*
     Number of statements sent from the client
   */
@@ -493,11 +494,10 @@ typedef struct system_status_var
     Below 'last_system_status_var' are all variables that cannot be handled
     automatically by add_to_status()/add_diff_to_status().
   */
-  ulong empty_queries;
-  ulong access_denied_errors;                   /* Can only be 0 or 1 */
-  ulong lost_connections;
   ulonglong bytes_received;
   ulonglong bytes_sent;
+  ulonglong rows_read;
+  ulonglong rows_sent;
   ulonglong binlog_bytes_written;
   double last_query_cost;
   double cpu_time, busy_time;