Fixed BUG#14719: Views DEFINER grammar is incorrect

  Corrected the syntax for the current_user() case.
  (It's "definer = current_user[()]", not just "current_user[()]".)

mysql-test/r/view.result

@@ -2375,3 +2375,13 @@ Warnings:
 Error	1146	Table 'test.t1' doesn't exist
 Error	1356	View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
 DROP VIEW v1;
+create definer = current_user() sql security invoker view v1 as select 1;
+show create view v1;
+View	Create View
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY INVOKER VIEW `v1` AS select 1 AS `1`
+drop view v1;
+create definer = current_user sql security invoker view v1 as select 1;
+show create view v1;
+View	Create View
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY INVOKER VIEW `v1` AS select 1 AS `1`
+drop view v1;

mysql-test/t/view.test

@@ -2240,3 +2240,16 @@ DROP TABLE t1;
 OPTIMIZE TABLE v1;
 
 DROP VIEW v1;
+
+
+#
+# BUG#14719: Views DEFINER grammar is incorrect
+#
+
+create definer = current_user() sql security invoker view v1 as select 1;
+show create view v1;
+drop view v1;
+
+create definer = current_user sql security invoker view v1 as select 1;
+show create view v1;
+drop view v1;

sql/sql_yacc.yy

@@ -9008,7 +9008,7 @@ view_user:
                                      thd->lex->create_view_definer))
               YYABORT;
           }
-        | CURRENT_USER optional_braces
+        | DEFINER_SYM EQ CURRENT_USER optional_braces
           {
             THD *thd= YYTHD;
             if (!(thd->lex->create_view_definer=