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This topic created in 2815 days ago, the information mentioned may be changed or developed.
JOIN_SHOW_CLK = join SHOW by (query,wid,csid) LEFT,CLK by (query,wid,csid);
tmp = foreach JOIN_SHOW_CLK GENERATE (CLK::csid is null? 0:1) as cs;
Grpd = group tmp by cs;
Smmd = foreach Grpd generate group, COUNT(tmp) as number,1,1,1;
Srtd = order Smmd by number desc;
dump Srtd;
SHOW_CLK = foreach JOIN_SHOW_CLK generate
SHOW::openid..SHOW::t2_csid,
(CLK::csid is null? 0:1) as is_clk;
Grpd = group SHOW_CLK by is_clk;
Smmd = foreach Grpd generate group, COUNT(SHOW_CLK) as number,1,1,1;
Srtd = order Smmd by number desc;
dump Srtd;
RT，我是想分组统计 CLK::csid 的数量，讲道理两个的输出结果应该是一样的啊，可是输出却不一样，请问是为什么呢？
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AllOfMe Aug 24, 2018
no data, no result , who 可以 answer 这个问题？
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DongDongXie OP @AllOfMe 我的意思是单从语法上分析，我感觉是不应该出现前后两次统计结果不一致的情况，可他还是发生了，所以很不解
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cm5168 Aug 25, 2018
cs 和 is_clk 不一样，group 出来的数据也不一样吧，第一个是根据一个数据 group，第二个是根据三个数据 group
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