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Re: single MR stage for join and group by - Hive - [mail # user]
...We are currently using cloudera's CDH4.2.0 based on Hive 0.10.0. So neither optimizations were incorporated.  Thank you all for the valuable feedback and this is really helpful. I will ...
   Author: Chen Song, 2013-08-02, 17:32
Re: Hive producing difference outputs - Hive - [mail # user]
...resent as no one has replied yet :)  On Thu, Nov 15, 2012 at 11:18 AM, Chen Song  wrote:    Chen Song...
   Author: Chen Song, 2012-12-19, 16:55
Re: map side join with group by - Hive - [mail # user]
...Thanks Nitin. This is all I want to clarify :)  Chen  On Thu, Dec 13, 2012 at 2:30 PM, Nitin Pawar wrote:     Chen Song...
   Author: Chen Song, 2012-12-13, 19:50
Re: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.MoveTask - Hive - [mail # user]
...Is there anything interesting on hive.log?  If you are running Hive shell with root user, by default, the hive.log should be in /tmp/hive.log.  BTW, are you using MySQL as your met...
   Author: Chen Song, 2012-10-29, 17:19
Re: general question on hive client log - Hive - [mail # user]
...Thanks Nitin.  I also found this wiki. But it only documented the hive client log. What about other log files created during a query?  Chen  On Thu, Oct 25, 2012 at 7:30 AM, N...
   Author: Chen Song, 2012-10-25, 14:26
Re: Error in semantic analysis: Unable to fetch table - Hive - [mail # user]
...Hi Keith  Can you get anything when you run "show databases" from php?  Chen  On Fri, Oct 19, 2012 at 2:48 AM, Keith Wiley  wrote:    Chen Song...
   Author: Chen Song, 2012-10-19, 14:16
Re: can i define an udf which can process more than one argument? - Hive - [mail # user]
...UDF can process multiple arguments. You just want to define the function signature in that way.  For example,  evaluate(String s1, String s2, boolean t)   On Thu, Oct 18, 2012...
   Author: Chen Song, 2012-10-19, 14:00
Question on escaped characters in Hive Shell - Hive - [mail # user]
...Hi All  I have a question on quoted hive query when executed with 'hive  -e'. The command I ran looks like:  (col1, '\\d+') from A where col2='some value' limit 5"  When ...
   Author: Chen Song, 2012-03-01, 16:42
Re: question on hive multiple insert - Hive - [mail # user]
...Please disregard my previous email. I figured out that the correct syntax s hould be  FROM a JOIN b on a.col1 = b.col1 INSERT a.col1, a.col2  INSERT ...  Thanks Chen   __...
   Author: Chen Song, 2012-01-20, 15:56
Re: pass entire row as parameter in hive UDF - Hive - [mail # user]
...Can this be only used in regular select statement or also as arguments to U DF? In this case, how shall I define my UDF/GenericUDF method signature to  accept column in this form? Will ...
   Author: Chen Song, 2011-11-02, 02:44
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