obs or long scripts of SQL. It's in alpha state; I am looking for
users to work with.
Regards,
Harish.
From: Igor Tatarinov [mailto:i...@decide.com]
Sent: Monday, January 23, 2012 11:27 PM
To: user@hive.apache.org
Subject: Re: Performance problems with Hive script
To compute moving aver
To compute moving averages, you should implement a custom reducer instead
of doing a big join. That will work *much* faster.
Also, Hive already has date_add(). Why did you have to implement your own?
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-DateFunction
I wrote, separately, a Hadoop job to calculate running averages of about
2000 stock tickers over a 180 day period as well as a Hive script which
performs equivalent functionality. I have been using Amazon Elastic
MapReduce as my platform for running these jobs. I have been trying for a
while to
