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Hive >> mail # user >> doubt with LEFT OUTER JOIN


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kumar mr 2013-03-01, 20:13
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Dean Wampler 2013-03-01, 20:23
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kumar mr 2013-03-05, 00:35
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Re: doubt with LEFT OUTER JOIN

Hi dean,
Are there any known issues if we do LEFT OUTER JOIN between different table formats like Text and RCfile? Here the tables are of different format types.

Regards,
Kumar

-----Original Message-----
From: Dean Wampler <[EMAIL PROTECTED]>
To: user <[EMAIL PROTECTED]>
Sent: Fri, Mar 1, 2013 12:23 pm
Subject: Re: doubt with LEFT OUTER JOIN
I just tried an experiment where the right-hand table was empty. It worked fine. Could you post more details, like the query, create table statements, etc? What version of Hive?

On Fri, Mar 1, 2013 at 2:13 PM, kumar mr <[EMAIL PROTECTED]> wrote:

Hi,
Does LEFT OUTER JOIN returns zero rows when RIGHT SIDE table doesn't have at least one record that matches JOIN condition in Hive?
Regards,
Kumar
--
Dean Wampler, Ph.D.
thinkbiganalytics.com
+1-312-339-1330

 
 
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Dean Wampler 2013-03-05, 00:44