Merge bodhi.(none):/opt/local/work/mysql-5.0-runtime

into  bodhi.(none):/opt/local/work/mysql-5.1-runtime


mysql-test/r/trigger.result:
  Auto merged
mysql-test/t/query_cache.test:
  Auto merged
mysql-test/t/sp.test:
  Auto merged
mysql-test/t/trigger.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sp_head.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_db.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_trigger.h:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/table.cc:
  Auto merged
storage/myisam/ha_myisam.h:
  Auto merged
mysql-test/include/mix1.inc:
  Manual merge.
mysql-test/r/information_schema.result:
  Manual merge.
mysql-test/r/innodb_mysql.result:
  Manual merge.
mysql-test/r/query_cache.result:
  Manual merge.
mysql-test/r/sp.result:
  Manual merge.
mysql-test/t/information_schema.test:
  Manual merge.
sql/handler.h:
  Manual merge.
sql/sp.cc:
  Manual merge.
sql/sp_head.cc:
  Manual merge.
sql/sql_prepare.cc:
  Manual merge.
sql/sql_trigger.cc:
  Manual merge.
sql/sql_yacc.yy:
  Manual merge.
sql/table.h:
  Manual merge.
storage/myisam/ha_myisam.cc:
  Manual merge.

sql/sql_db.cc

@@ -1397,10 +1397,10 @@ bool mysql_change_db(THD *thd, const LEX_STRING *new_db_name, bool force_switch)
   {
     if (force_switch)
     {
-      push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_NOTE,
-                          ER_NO_DB_ERROR, ER(ER_NO_DB_ERROR));
-
-      /* Change db to NULL. */
+      /*
+        This can only happen when we restore the old db in THD after
+        execution of a routine is complete. Change db to NULL.
+      */
 
       mysql_change_db_impl(thd, NULL, 0, thd->variables.collation_server);