hive中leftouterjoin的问题

hive中leftouterjoin的问题，where过滤条件写的地方不对，得出的结果不一样，请看下面的代码过程，不用多解释。 Hive Hadoop hive desc t1; OKid int name string p_id int Time taken: 0.118 seconds, Fetched: 3 row(s)hive desc t2;OKid int name string T

hive> desc t1; 
OK
id int 
name string 
p_id int 
Time taken: 0.118 seconds, Fetched: 3 row(s)
hive> desc t2;
OK
id int 
name string 
Time taken: 0.051 seconds, Fetched: 2 row(s)
hive> select * from t1;
OK
1 aaa 2
2 bbb 2
3 ccc 3
4 ddd 4
5 fff 3
6 ooo 23
Time taken: 0.418 seconds, Fetched: 6 row(s)
hive> select * from t2;
OK
4 jjj
4 jjj
4 jjj
2 abc
3 hhh
4 jjj
3 ii
2 fuck
7 shit
Time taken: 0.068 seconds, Fetched: 9 row(s)
hive> select * from t1 left outer join t2 on (t1.p_id=t2.id) where t2.name='abc';

OK
1 aaa 2 2 abc
2 bbb 2 2 abc
Time taken: 21.53 seconds, Fetched: 2 row(s)
hive> select * from t1 left outer join t2 on (t1.p_id=t2.id and t2.name='abc'); 

OK
1 aaa 2 2 abc
2 bbb 2 2 abc
3 ccc 3 NULL NULL
4 ddd 4 NULL NULL
5 fff 3 NULL NULL
6 ooo 23 NULL NULL
Time taken: 17.676 seconds, Fetched: 6 row(s)

hive left outer join 要过滤右表的数据应该是第二种写法，第一种是mysql的写法，但是在hive中会存在问题。