Don't start profiling too soon. Begin timing when the packet is

read.

Do not store profiling information when there is no query text.  We
don't wish to capture non-COM_QUERY packets.


sql/sql_parse.cc:
  Start profiling immediately after a command packet is read from 
  the network.
sql/sql_profile.cc:
  Do not store items for which there is no query, i.e., protocol API 
  calls (non-COM_QUERY) and such.

sql/sql_parse.cc

@@ -668,9 +668,6 @@ bool do_command(THD *thd)
   enum enum_server_command command;
   DBUG_ENTER("do_command");
 
-#if defined(ENABLED_PROFILING) && defined(COMMUNITY_SERVER)
-  thd->profiling.start_new_query();
-#endif
   /*
     indicator of uninitialized lex => normal flow of errors handling
     (see my_message_sql)
@@ -688,7 +685,12 @@ bool do_command(THD *thd)
   thd->clear_error();				// Clear error message
 
   net_new_transaction(net);
-  if ((packet_length=my_net_read(net)) == packet_error)
+
+  packet_length= my_net_read(net);
+#if defined(ENABLED_PROFILING) && defined(COMMUNITY_SERVER)
+  thd->profiling.start_new_query();
+#endif
+  if (packet_length == packet_error)
   {
     DBUG_PRINT("info",("Got error %d reading command from socket %s",
 		       net->error,

sql/sql_profile.cc

@@ -378,6 +378,7 @@ void PROFILING::finish_current_query()
 
     if ((enabled) &&                                    /* ON at start? */
         ((thd->options & OPTION_PROFILING) != 0) &&   /* and ON at end? */
+        (current->query_source != NULL) &&
         (! current->entries.is_empty()))
     {
       current->profiling_query_id= next_profile_id();   /* assign an id */