Bug#24795: Add SHOW PROFILE

Patch contributed by Jeremy Cole.  CLA received Oct 2006 by Kaj Arnö

Add rudimentary query profiling support.


libmysqld/Makefile.am:
  Add profile file to source list.
sql/Makefile.am:
  Add profiling files to source and header lists.
sql/ha_archive.cc:
  Macro-ized other discovered instances of setting proc_info.
sql/ha_myisam.cc:
  Macroize setting thread-state info
sql/item_func.cc:
  Macro-ized other discovered instances of setting proc_info.
sql/lex.h:
  Add lexer info for profiling.
sql/lock.cc:
  Macroize setting thread-state info
sql/log_event.cc:
  Macro-ized other discovered instances of setting proc_info.
sql/mysql_priv.h:
  Set constants for profiling.
sql/repl_failsafe.cc:
  Macro-ized other discovered instances of setting proc_info.
sql/slave.cc:
  Macro-ized other discovered instances of setting proc_info.
sql/sp_head.cc:
  Macro-ized other discovered instances of setting proc_info.
sql/sql_base.cc:
  Macroize setting thread-state info
  ---
  Macro-ized other discovered instances of setting proc_info.
sql/sql_cache.cc:
  Macroize setting thread-state info
sql/sql_class.cc:
  Integrate profiling.
sql/sql_class.h:
  Instantiate profiling object.
sql/sql_delete.cc:
  Macroize setting thread-state info
sql/sql_insert.cc:
  Macroize setting thread-state info
  ---
  Macro-ized other discovered instances of setting proc_info.
sql/sql_lex.cc:
  Initialize profiling.
sql/sql_lex.h:
  Define lex tokens and allocate space for profiling options.
sql/sql_parse.cc:
  Integrate profiling.
  ---
  Macro-ized other discovered instances of setting proc_info.
sql/sql_repl.cc:
  Macro-ized other discovered instances of setting proc_info.
sql/sql_select.cc:
  Macroize setting thread-state info.
  
  Clean up some lines.
sql/sql_show.cc:
  Macro-ized other discovered instances of setting proc_info.
  ---
  Revert bad use of macro.
sql/sql_table.cc:
  Macroize setting thread-state info
sql/sql_update.cc:
  Macroize setting thread-state info
sql/sql_view.cc:
  Macro-ized other discovered instances of setting proc_info.
sql/sql_yacc.yy:
  Add parser info for profiling.
  ---
  Fix new YACC shift/reduce conflict.  (Now at 249.)
mysql-test/r/profile.result:
  Test profiling code.
  ---
  A not-very-useful result.
mysql-test/t/profile.test:
  Test profiling code.
  ---
  Test syntax, but not values of profiles code.
sql/sql_profile.cc:
  Add profiling code.
  ---
  Add wishlist comment.
sql/sql_profile.h:
  Add profiling code.
  ---
  Changed the value of the macro so that it's syntactically equivalent to a
  single statement.

sql/sql_delete.cc

@@ -55,7 +55,7 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
     table->file->print_error(error, MYF(0));
     DBUG_RETURN(error);
   }
-  thd->proc_info="init";
+  THD_PROC_INFO(thd, "init");
   table->map=1;
 
   if (mysql_prepare_delete(thd, table_list, &conds))
@@ -206,7 +206,7 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
 
   deleted=0L;
   init_ftfuncs(thd, select_lex, 1);
-  thd->proc_info="updating";
+  THD_PROC_INFO(thd, "updating");
 
   if (table->triggers)
     table->triggers->mark_fields_used(thd, TRG_EVENT_DELETE);
@@ -262,7 +262,7 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
   }
   if (thd->killed && !error)
     error= 1;					// Aborted
-  thd->proc_info="end";
+  THD_PROC_INFO(thd,  "end");
   end_read_record(&info);
   free_io_cache(table);				// Will not do any harm
   if (options & OPTION_QUICK)
@@ -486,7 +486,7 @@ multi_delete::prepare(List<Item> &values, SELECT_LEX_UNIT *u)
   DBUG_ENTER("multi_delete::prepare");
   unit= u;
   do_delete= 1;
-  thd->proc_info="deleting from main table";
+  THD_PROC_INFO(thd, "deleting from main table");
   DBUG_RETURN(0);
 }
 
@@ -750,7 +750,7 @@ int multi_delete::do_deletes()
 
 bool multi_delete::send_eof()
 {
-  thd->proc_info="deleting from reference tables";
+  THD_PROC_INFO(thd, "deleting from reference tables");
 
   /* Does deletes for the last n - 1 tables, returns 0 if ok */
   int local_error= do_deletes();		// returns 0 if success
@@ -759,7 +759,7 @@ bool multi_delete::send_eof()
   local_error= local_error || error;
 
   /* reset used flags */
-  thd->proc_info="end";
+  THD_PROC_INFO(thd, "end");
 
   /*
     We must invalidate the query cache before binlog writing and