猪压扁并全部分组

Posted 2023-04-18

【中文标题】猪压扁并全部分组

【英文标题】：Pig flatten and group all

【发布时间】：2015-04-06 18:32:03

【问题描述】：

我有两个文件，我想合并这些文件以生成单个文件作为输出。

file1 = "Hello world"
file2 = "I am x";
c = union file1,file2;
group = group c all;
group = (all,(Hello world),(I am x));

我希望输出为 (Hello world I am x);

如何实现呢？我试过了：

res = foreach group generate flatten(all);

但它不起作用..

【参考方案1】：

试试这个..

x = load 'pigin1.txt' as (str1:chararray);

y = load 'pigin.txt' as (str2:chararray);

z = rank x;

z1 = rank y;

z2 = join z by rank_x,z1 by rank_y;

z3 = foreach z2 generate  CONCAT(z::str1,z1::str2);

dump z3;