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Cascading is one of the best framework to deal with hadood jobs by using simple data flows.

Has anyone tried and performed joins usings 3 tables in cascading, if so can u please share ur ideas regarding joins in cascading and how to perform join on 3 tables?.

Nagendra kumar
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1 Answers1

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cascading supports mutliple joins we can do this by using 

CoGroup(pipes[],fieldnames[],DeclaredFields[],mixedjoin(boolean[]));

boolean is a set of arrays which indicate the whether the is innerjoin(true) or outerjoin(false).

Lalit Kumar B
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Nagendra kumar
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