sample.txt文件

2017-01-01 10:21:59 THURSDAY    -39 3 Pick up a bus - Travel for two hours
2017-02-01 12:45:19 FRIDAY  -55 8 Pick up a train - Travel for one hour
2017-03-01 11:35:49 SUNDAY  -55 8 Pick up a train - Travel for one hour
I
.
.

当我执行建议的命令时，它被分为三个字段。
当我做下面的操作时，它没有按预期工作。

A = LOAD 'Sample.txt' USING PigStorage() as (line:chararray);
B = foreach A generate STRSPLIT(line, ' ', 3);
c = foreach B generate $2;
split C into buslog if $0 matches '.*bus*.', trainlog if $0 matches '.*train*.';

note:- dump 结果如下。

THURSDAY    -39 3 Pick up a bus - Travel for two hours
FRIDAY  -55 8 Pick up a train - Travel for one hour
SUNDAY  -55 8 Pick up a train - Travel for one hour

要求：在上面的结果中，我想把火车和公共汽车分成两个关系，但它没有按预期发生