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From Bhavesh Shah <>
Subject Does Hive supports EXISTS keyword in select query?
Date Wed, 11 Apr 2012 12:59:52 GMT
Hello all,
I want to query like below in Hive:
Select a.* FROM tblA a JOIN tblB b ON a.field1 = b.field1
where (a.field2 is null or not exists(select field2 from tblB where filed2
is not null)

But I think Hive doesn't supports EXISTS keyword so how can I overcome this
Pls suggest me some solution to this. I just got this kind of situation
where I need to implement some thing like EXISTS/NOT EXISTS

Thanks and Regards,
Bhavesh Shah

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