PIG逻辑，过滤，组，嵌套FOREACH，未知错误

Question

美好的一天，大家好，如果你有空的时候，你介意帮我找错吗？

错误是ERROR 1200：@ gruu_500​​ = GROUP * prio_500 all，其中*表示错误的确切行和列。

它说'prio_500'或其附近存在语法错误，未预料到的符号

DESCRIBE data_
data_:{a: chararray, b: int, c:int, d: int, e: int, f: int, g: int, h: int, i: int
 ,j: int, k: chararray, l: chararray, m: chararray, n: chararray, o: chararray}

data_500 = FILTER data_ BY ($8 == 500);
grop_500 = GROUP data_500 ALL;

bich_500 = FOREACH grop_500{
prio_500 = FILTER data_ BY (e <= data_500.e) AND (a MATCHES data_500.a);
gruu_500 = GROUP prio_500 ALL;
GENERATE gruu_500;}

Answer 1

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中最高投票的答案

Can I generate nested bags using nested FOREACH statements in Pig Latin?

谢谢你的时间！