hadoop - Pig:单个语句中有多个联接语句

请帮我把 pig 做完

Input:
record1: ("Ammit", 123, 234, 345)
record2: (map : [
    "123" : ("accountNo": 123, "bank": "ICICI Bank", "branch" : "Delhi"),
    "234" : ("accountNo": 234, "bank": "HDFC Bank", "branch" : "Mumbai"),
    "345" : ("accountNo": 345, "bank": "SBI", "branch" : "Bangalore"),
    ])

上面的数据代表Amit的银行帐户，其中包含accountNo，银行和分行的详细信息。 Record1包含名称，后跟3个帐号ID(按顺序排列)(即，它们代表Amit开户的顺序)

output: ("Amit",
    "123" : ("accountNo": 123, "bank": "ICICI Bank", "branch" : "Delhi"),
    "234" : ("accountNo": 234, "bank": "HDFC Bank", "branch" : "Mumbai"),
    "345" : ("accountNo": 345, "bank": "SBI", "branch" : "Bangalore"),
    )

我该如何实现？

最佳答案

您可以展平 map ，然后合并联接将保持顺序

https://wiki.apache.org/pig/PigMergeJoin

关于hadoop - Pig:单个语句中有多个联接语句，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/23512907/