Merge mysql.com:/home/ram/work/b27515/b27515.4.1

into  mysql.com:/home/ram/work/b27515/b27515.5.0

mysql-test/t/grant.test

@@ -540,7 +540,28 @@ delete from mysql.tables_priv where user='mysqltest1';
 flush privileges;
 drop database mysqltest;
 
-# End of 4.1 tests
+#
+# Bug #27515: DROP previlege is not required for RENAME TABLE
+#
+connection master;
+create database db27515;
+use db27515;
+create table t1 (a int);
+grant alter on db27515.t1 to user27515@localhost;
+grant insert, create on db27515.t2 to user27515@localhost;
+
+connect (conn27515, localhost, user27515, , db27515);
+connection conn27515;
+--error 1142
+rename table t1 to t2;
+disconnect conn27515;
+
+connection master;
+revoke all privileges, grant option from user27515@localhost;
+drop user user27515@localhost;
+drop database db27515;
+
+--echo End of 4.1 tests
 
 #
 # Bug #16297 In memory grant tables not flushed when users's hostname is ""

sql/sql_parse.cc

@@ -3272,7 +3272,7 @@ mysql_execute_command(THD *thd)
 	*/
 	old_list= table[0];
 	new_list= table->next_local[0];
-	if (check_grant(thd, ALTER_ACL, &old_list, 0, 1, 0) ||
+	if (check_grant(thd, ALTER_ACL | DROP_ACL, &old_list, 0, 1, 0) ||
 	    (!test_all_bits(table->next_local->grant.privilege,
 			    INSERT_ACL | CREATE_ACL) &&
 	     check_grant(thd, INSERT_ACL | CREATE_ACL, &new_list, 0, 1, 0)))