BUG#13310 incorrect user parsing by SP

 - Strip surrounding ''s from username when a new user connects. There
   is no user 'a@', it should be a@


mysql-test/r/grant2.result:
  Update test result
mysql-test/t/grant2.test:
  Add tests for bug 13310
sql/sql_parse.cc:
  Strip surrounding ''s from username when a new user connects. There 
  is no user 'a@', it should be a@

1 files changed, 13 insertions, 0 deletions

diff --git a/mysql-test/r/grant2.result b/mysql-test/r/grant2.result
index a42ad0d79a5..fa25df3203f 100644
--- a/mysql-test/r/grant2.result
+++ b/mysql-test/r/grant2.result
@@ -356,3 +356,16 @@ insert into mysql.user select * from t1;
 drop table t1, t2;
 drop database TESTDB;
 flush privileges;
+grant all privileges on test.* to `a@`@localhost;
+grant execute on * to `a@`@localhost;
+create table t2 (s1 int);
+insert into t2 values (1);
+drop function if exists f2;
+create function f2 () returns int begin declare v int; select s1 from t2
+into v; return v; end//
+select f2();
+f2()
+1
+drop function f2;
+drop table t2;
+REVOKE ALL PRIVILEGES, GRANT OPTION FROM `a@`@localhost;