假设我有一个数据文件:
abc,def,ghi
jkl,mno,pqr
stu,vwx,yz
我怎样才能只输出一列,这样就可以得到下面的结果?
abc
jkl
stu
这是我的主意:
A = load 'data' AS (c1,c2,c3);
dump A.c1
我得到这个错误:
2014-12-06 17:14:19,424 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1000: Error during parsing. Encountered " <PATH> "data.c1 "" at line 2, column 6.
Was expecting one of:
<EOF>
"cat" ...
"clear" ...
"fs" ...
"sh" ...
"cd" ...
"cp" ...
"copyFromLocal" ...
1条答案
按热度按时间mum43rcc1#
你能这样试试吗?
输出: