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[expand - 1 more] - Re: how to avoid scan the same table multi times? - Hive - [mail # user]
...Xiaobin, I would assume that's what Martin meant. You can always add dashes to make  it more readable:-)  Mark Grover, Business Intelligence Analyst OANDA Corporation  www: oa...
   Author: Mark Grover, 2012-01-13, 15:41
Re: Lag & Lead - Hive - [mail # user]
...Dave, I had a similar need for the "first" function but since the Hive ticket Ed mentioned is still unresolved, I ended up writing a reducer (pluggable into Hive via the "transform" function...
   Author: Mark Grover, 2012-01-11, 19:49
Re: drop table -> java.lang.OutOfMemoryError: Java heap space - Hive - [mail # user]
...Hi Matt, You might want to try using s3://elasticmapreduce/bootstrap-actions/configurations/latest/memory-intensive in your bootstrap action and see if that helps. I would also suggest that ...
   Author: Mark Grover, 2012-01-05, 15:04
Exception related to adding a jar in Hive - Hive - [mail # user]
...Hi all, I would really appreciate your thoughts and comments on this.  I am using Hive 0.7.1 and Hadoop 0.20.203 on Amazon Elastic MapReduce.  My .hiverc file looks like: add jar /...
   Author: Mark Grover, 2011-12-23, 18:58
Re: Efficient ways to parse xml from hive column(for selection/filters based on xml node values) - Hive - [mail # user]
...You might want to take a look at this: https://cwiki.apache.org/Hive/languagemanual-xpathudf.html   Mark Grover, Business Intelligence Analyst OANDA Corporation   www: oanda.com ww...
   Author: Mark Grover, 2011-12-23, 15:50
Re: Regex and serde with hive - Hive - [mail # user]
...Hi Ranjith, Like Loren, I don't think the regex you are using is correct.  If you use a create table command like the following, it should work: create external table my_table(a STRING,...
   Author: Mark Grover, 2011-12-23, 15:28
Re: LEFT OUTER JOIN and partition - Hive - [mail # user]
...Hi Michael, Thank you for the detailed explanation.  I wouldn't have expected SELECT count(A.id) FROM a LEFT OUTER JOIN b ON (A.id=B.id AND A.dt=X AN D B.dt=X) WHERE B.id IS NULL; to gi...
   Author: Mark Grover, 2011-12-22, 18:36
[expand - 1 more] - Re: Help with a table located on s3n - Hive - [mail # user]
...Hi Ranjan, I agree with Igor. I consider it a good practice to point the location to the directory containing the file instead of the file itself.  It's probably some config option that...
   Author: Mark Grover, 2011-12-16, 18:55
Re: Getting a NULL from a MAP operation - Hive - [mail # user]
...Hi Michael, Try returning "\\N" instead.  Mark Grover, Business Intelligence Analyst OANDA Corporation  www: oanda.com www: fxtrade.com e: [EMAIL PROTECTED]  "Best Trading Pla...
   Author: Mark Grover, 2011-12-12, 14:28
[expand - 1 more] - Re: Hive Reducers hanging - interesting problem - skew ? - Hive - [mail # user]
...Hi jS, Sorry about the delayed response. Did you make any progress?  Based on my understanding, you are right. If you have 2 big collections of records being processed in Stage 2, map j...
   Author: Mark Grover, 2011-12-11, 21:53
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