小编Pra*_*wal的帖子

我有一个用例,我需要计算两个字段的不同数量.

样品:

x = LOAD 'testdata' using PigStorage('^A') as (a,b,c,d);

y = GROUP x BY a;

z = FOREACH y {

        **bc = DISTINCT x.b,x.c;**
        dd = DISTINCT x.d;
        GENERATE FLATTEN(group) as (a), COUNT(bc), COUNT(dd);
};