After-merge fixes.

mysql-test/r/trigger-grant.result

@@ -135,6 +135,7 @@ SET @new_sum = 0;
 Warnings:
 Note	1449	There is no 'mysqltest_nonexs'@'localhost' registered
 INSERT INTO t1 VALUES(6);
+ERROR HY000: There is no 'mysqltest_nonexs'@'localhost' registered
 SHOW TRIGGERS;
 Trigger	Event	Table	Statement	Timing	Created	sql_mode	Definer
 trg1	INSERT	t1	SET @new_sum = 0	BEFORE	NULL		mysqltest_inv@localhost

mysql-test/r/view_grant.result

@@ -522,11 +522,16 @@ use test;
 drop user mysqltest_1@localhost;
 drop database mysqltest;
 create definer=some_user@`` sql security invoker view v1 as select 1;
-ERROR HY000: Definer is not fully qualified
-create definer=some_user@localhost sql security invoker view v1 as select 1;
+Warnings:
+Note	1449	There is no 'some_user'@'' registered
+create definer=some_user@localhost sql security invoker view v2 as select 1;
 Warnings:
 Note	1449	There is no 'some_user'@'localhost' registered
 show create view v1;
 View	Create View
-v1	CREATE ALGORITHM=UNDEFINED DEFINER=`some_user`@`localhost` SQL SECURITY INVOKER VIEW `v1` AS select 1 AS `1`
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`some_user`@`` SQL SECURITY INVOKER VIEW `v1` AS select 1 AS `1`
+show create view v2;
+View	Create View
+v2	CREATE ALGORITHM=UNDEFINED DEFINER=`some_user`@`localhost` SQL SECURITY INVOKER VIEW `v2` AS select 1 AS `1`
 drop view v1;
+drop view v2;

mysql-test/t/trigger-grant.test

@@ -317,10 +317,7 @@ CREATE DEFINER='mysqltest_nonexs'@'localhost'
 
 # Check that trg2 will not be activated.
 
-# --error ER_SPECIFIC_ACCESS_DENIED_ERROR
-#
-# TODO: Due to the BUG#13198(SP executes if definer does not exist) the
-# following statement does not fail as it should.
+--error ER_NO_SUCH_USER
 INSERT INTO t1 VALUES(6);
 
 #

mysql-test/t/view_grant.test

@@ -712,10 +712,11 @@ connection default;
 #
 # DEFINER information check
 #
--- error ER_MALFORMED_DEFINER
 create definer=some_user@`` sql security invoker view v1 as select 1;
-create definer=some_user@localhost sql security invoker view v1 as select 1;
+create definer=some_user@localhost sql security invoker view v2 as select 1;
 show create view v1;
+show create view v2;
 drop view v1;
+drop view v2;
 
 

sql/sql_parse.cc

@@ -7475,8 +7475,7 @@ LEX_USER *create_default_definer(THD *thd)
 
 
 /*
-  Create definer with the given user and host names. Also check that the user
-  and host names satisfy definers requirements.
+  Create definer with the given user and host names.
 
   SYNOPSIS
     create_definer()
@@ -7494,14 +7493,6 @@ LEX_USER *create_definer(THD *thd, LEX_STRING *user_name, LEX_STRING *host_name)
 {
   LEX_USER *definer;
 
-  /* Check that specified host name is valid. */
-
-  if (host_name->length == 0)
-  {
-    my_error(ER_MALFORMED_DEFINER, MYF(0));
-    return 0;
-  }
-
   /* Create and initialize. */
 
   if (! (definer= (LEX_USER*) thd->alloc(sizeof(LEX_USER))))

sql/sql_show.cc

@@ -831,7 +831,7 @@ append_identifier(THD *thd, String *packet, const char *name, uint length)
 
 int get_quote_char_for_identifier(THD *thd, const char *name, uint length)
 {
-  if (!length ||
+  if (length &&
       !is_keyword(name,length) &&
       !require_quotes(name, length) &&
       !(thd->options & OPTION_QUOTE_SHOW_CREATE))