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Re: '\N' is displayed in case of null column values in exporting hive query results to CSV file - Hive - [mail # user]
...Hi Rinku, That's the expected behaviour to differentiate between NULL, "NULL" (string ) and "" (empty string).  If you would like something else to be serialized, you can use coalesce U...
   Author: Mark Grover, 2012-05-05, 22:14
Re: Hive supports scheduling? - Hive - [mail # user]
...Hi Chandan, None that I know of. If I were you, I would schedule my client code to issue a query on Hive at a particular time.  Mark  Mark Grover, Business Intelligence Analyst OAN...
   Author: Mark Grover, 2012-05-05, 21:53
[expand - 1 more] - Re: When/how to use partitions and buckets usefully? - Hive - [mail # user]
...I am hoping that other people who have used Map Join can pitch in here...  When the smaller table gets loaded into mapper's memory, the data is loaded  in its uncompressed form, ri...
   Author: Mark Grover, 2012-04-26, 00:59
Re: Get current date in hive - Hive - [mail # user]
...Hi Saurabh, You might want to consider populating the right hand side of this expressio n  local_dt >= date_sub(to_date(unix_timestamp()), 3)   in the Hive client code that is i...
   Author: Mark Grover, 2012-04-26, 00:54
Re: subquery + lateral view fails without count - Hive - [mail # user]
...Hi Ruben, Looks like pastie is down (http://pastie.org/) because of recent DDOS attac ks. Can you please post your queries elsewhere?  Mark  Mark Grover, Business Intelligence Anal...
   Author: Mark Grover, 2012-04-24, 23:39
[expand - 1 more] - Re: Doubts related to Amazon EMR - Hive - [mail # user]
...Hi Bhavesh, If you copy your jar over to master node of your EMR cluster and install Sqoop like Kyle suggested, you can run your jar on the master node, just like you did on your local clust...
   Author: Mark Grover, 2012-04-24, 17:26
[expand - 1 more] - Re: Lifecycle and Configuration of a hive UDF - Hive - [mail # user]
...Added a tiny blurb here: https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-UDFinternals Comments/suggestions welcome!  Thanks for bringing it up, Jus...
   Author: Mark Grover, 2012-04-24, 03:55
Re: Can we define external table Fields enclosed in " - Hive - [mail # user]
...Gopi, I was thinking something very similar to Tim's suggestion:  CREATE EXTERNAL TABLE table_stg(ip STRING, id1 STRING,                   &...
   Author: Mark Grover, 2012-04-18, 20:01
Re: WITH clause support in HIVE - Hive - [mail # user]
...Sukhendu, Perhaps you can use a view or derived table to accomplish the same.  What's  your use case?  Mark Grover, Business Intelligence Analyst OANDA Corporation   www:...
   Author: Mark Grover, 2012-04-17, 18:46
Re: Lag function in Hive - Hive - [mail # user]
...Hi Karan, The error you mentioned you get on creating the temporary function typically happens when there is a typo in the class name (com.example.hive.udf.Lag, in this case).  Can you ...
   Author: Mark Grover, 2012-04-11, 13:31
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