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首先我有数据并分组
A = LOAD './test.txt' USING PigStorage(' ') AS (id:int, time:int, value:float);
B = GROUP A BY time;
例如结果我有这样的结构。
1001 {(1,1001,0.2),(3,1001,0.3),(2,1001,0.3),(4,1001,0.6)}
1002 {(2,1002,0.5),(1,1002,0.3),(3,1002,0.1),(4,1002,0.6)}
1003 {(4,1003,0.2),(1,1003,0.8),(2,1003,0.4),(3,1003,0.5)}
但是我想要
1001 {(1,1001,0.2),(2,1001,0.3),(3,1001,0.3),(4,1001,0.6)}
1002 {(1,1002,0.3),(2,1002,0.5),(3,1002,0.1),(4,1002,0.6)}
1003 {(1,1003,0.8),(2,1003,0.4),(3,1003,0.5),(4,1003,0.2)}