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Re: Running commands at hive cli or hive thirft startup - Hive - [mail # user]
...What about using "hive -i ~/.hiverc -f script"? I haven't tried it, but I assume it reads the specified "rc" file in the batch mode case. True?  On Fri, Dec 14, 2012 at 3:41 AM, Mark Gr...
   Author: Dean Wampler, 2012-12-14, 14:31
Re: Storing data in TSV with changing headers - Hive - [mail # user]
...You'll have to define separate tables for the different schemas. You can "unify" them in a query with the union feature. You should also remove the header lines in the files, if you still ha...
   Author: Dean Wampler, 2012-11-30, 13:40
Re: Starting with Hive - writing custom SerDe - Hive - [mail # user]
...Similarly, Pig is pretty nice for this type of data cleansing and it's a little more flexible  However, for completeness, I'll mention an alternative to writing a UDF; use the Hive stre...
   Author: Dean Wampler, 2012-11-29, 15:09
Re: Effecient partitions usage in join - Hive - [mail # user]
...A quick suggestion. If the format never changes, you might as well make the string and SimpleDateFormat object static to eliminate the overhead of creating them in every call to evaluate. &n...
   Author: Dean Wampler, 2012-11-23, 13:40
"Subject" etiquette - Hive - [mail # user]
...As a service to everyone on this list, please fill in the "Subject" field when you post to the list, especially if you want the rest of us to read your message. Thank you.  dean  *...
   Author: Dean Wampler, 2012-11-22, 14:17
Re: Multiuser setup on Hive - Hive - [mail # user]
...If you go the route of locking down permissions at the HDFS level, then it will help if everyone works in his or her own database, since all the tables will be rooted at a directory for each...
   Author: Dean Wampler, 2012-11-22, 14:14
Re: Hive JOINs not working as expected (returns 0 rows) - Hive - [mail # user]
...Did you install v0.9.0 on your MapR cluster? I suspect there's a bug in the interaction between the two. I'm not sure which version of Hive is the latest shipped with MapR.  I just trie...
   Author: Dean Wampler, 2012-11-20, 16:22
[expand - 1 more] - Re: Run Shark on Windows? - Hive - [mail # user]
...Good point. When I used Windows and Cygwin years ago, I sometimes had problems with unix-like paths confusing the windows JVM. If that happens, hopefully the fix is to use windows paths in t...
   Author: Dean Wampler, 2012-11-15, 00:02
[expand - 1 more] - Re: Alter table is giving error - Hive - [mail # user]
...Writing a script to add the external partitions individually is the only way I know of.   Sent from my rotary phone.    On Nov 5, 2012, at 8:19 AM, Chunky Gupta  wrote: &...
   Author: Dean Wampler, 2012-11-05, 14:33
[expand - 4 more] - Re: Creating Indexes - Hive - [mail # user]
...Hit send too soon...  I'm glad the ADD JAR hack appeared to work. You might verify if the temporary files mentioned are still there and also verify that you have write permissions for t...
   Author: Dean Wampler, 2012-11-03, 00:03
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