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Re: difference between add jar in hive session and hive --auxpath - Hive - [mail # user]
...copies jars around the cluster and adds them to the task classpath, so the jars you add aren't visible to hive itself. Annoying, but...  On Fri, Mar 8, 2013 at 11:53 AM, java8964 java89...
   Author: Dean Wampler, 2013-03-08, 18:01
Re: Find current db we r using in Hive - Hive - [mail # user]
...It's odd that there is no such command. The trick Ramki mentioned is the only one I know of. Two points about it, though:  1. It only works on Hive v0.8+. 2. I've seen a few cases where...
   Author: Dean Wampler, 2013-03-08, 13:25
Re: java.lang.NoClassDefFoundError: com/jayway/jsonpath/PathUtil - Hive - [mail # user]
...Unfortunately, you have to also add the json jars to Hive's class path before it starts, e.g.,  env HADOOP_CLASSPATH=/path/to/lib/*.jar hive  Use the appropriate path to your lib d...
   Author: Dean Wampler, 2013-03-08, 13:22
Re: Accessing sub column in hive - Hive - [mail # user]
...I recognize this example ;)  You reference struct elements with the dot notation, as Bejoy said, map elements with what you tried, deductions['Federal taxes'], and arrays by index, star...
   Author: Dean Wampler, 2013-03-08, 13:19
Re: Rename external table, including HDFS directory - Hive - [mail # user]
...You can rename the LOCATION with an ALTER TABLE command. I don't believe there's a single, "atomic" statement to rename both the table and the directory.  On Thu, Mar 7, 2013 at 5:29 PM...
   Author: Dean Wampler, 2013-03-08, 00:02
Re: Variable Substitution - Hive - [mail # user]
...Even newer versions of Hive do this. Any reason you don't want to provide a definition for all of them? You could argue that an undefined variable is a bug and leaving the literal text in pl...
   Author: Dean Wampler, 2013-03-06, 21:30
Re: Combine two overlapping schema? - Hive - [mail # user]
...Of the top of my head, I think UNION ALL should work if you explicitly project out the missing columns with NULL or other values, e.g. using nested SELECTs, something like  SELECT * FRO...
   Author: Dean Wampler, 2013-03-06, 18:11
Re: Where is the location of hive queries - Hive - [mail # user]
...Or use a variant of the INSERT statement to write to a directory or a table.  On Wed, Mar 6, 2013 at 10:05 AM, Nitin Pawar wrote:     *Dean Wampler, Ph.D.* thinkbiganalytics.c...
   Author: Dean Wampler, 2013-03-06, 16:28
[expand - 1 more] - Re: Best table storage for analytical use case - Hive - [mail # user]
...MapReduce is very course-grained. It might seem that more cores is better, but once the data sizes get well below the block threshold in size, the overhead of starting JVM processes and all ...
   Author: Dean Wampler, 2013-03-06, 16:02
[expand - 1 more] - Re: Hive sample test - Hive - [mail # user]
...NIce, yea that would do it.  On Tue, Mar 5, 2013 at 1:26 PM, Mark Grover wrote:     *Dean Wampler, Ph.D.* thinkbiganalytics.com +1-312-339-1330...
   Author: Dean Wampler, 2013-03-05, 19:44
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