Hive should escape fields terminator when use textfile format

create table test_1(id int,name string) row format delimited fields terminated by ',' stored as textfile;
insert into table test_1 values (1,'a,b,c')；

select * from test_1;
+------------+--------------+--+
| test_1.id  | test_1.name  |
+------------+--------------+--+
| 1          | a            |
+------------+--------------+--+
4 rows selected (0.363 seconds)