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[HIVE-5321] Join filters do not work correctly with outer joins again - Hive - [issue]
...select * from tt1 left outer join tt2 on (tt1.c1 = tt2.c1 and tt1.c1 <= 2);does not give correct results.to reproduce:hive> create table tt1 (c1 int);hive> create table tt2 (c1 int)...
http://issues.apache.org/jira/browse/HIVE-5321    Author: Alexander Pivovarov, 2013-09-20, 03:37
hive-0.11 hiveserver add jar create temporary function - Hive - [mail # dev]
...I noticed that hive-0.11 hiveserver works differently from hive-0.9 for temporary functions  In hive-0.9 I need to run "add jar" and "create tmp function" only once in one connection. A...
   Author: Alexander Pivovarov, 2013-09-12, 02:30
Re: Enhancing Query Join to speed up Query - Hive - [mail # user]
...Basically 1. if you join table try to filter out as much as possible in WHERE (to reduce amount of data sent form map to reduce step) 2. if you join big table with small table ( wrote:  ...
   Author: Alexander Pivovarov, 2013-06-14, 05:45
Re: Sequence file compression in Hive - Hive - [mail # user]
...Sachin, it works  SET hive.exec.compress.output=true; SET mapred.output.compression.codec=org.apache.hadoop.io.compress.GzipCodec; SET mapred.output.compression.type=BLOCK; create table...
   Author: Alexander Pivovarov, 2013-06-10, 18:37
Re: Need rank(), can't build m6d's version - Hive - [mail # user]
...http://ragrawal.wordpress.com/2011/11/18/extract-top-n-records-in-each-group-in-hadoophive/   On Mon, Apr 1, 2013 at 3:45 PM, Keith Wiley  wrote:  ...
   Author: Alexander Pivovarov, 2013-04-01, 23:12
Re: Function definition in hive - Hive - [mail # user]
...https://cwiki.apache.org/Hive/hiveplugins.html  Creating Custom UDFs  First, you need to create a new class that extends UDF, with one or more methods named evaluate.  package...
   Author: Alexander Pivovarov, 2013-02-23, 01:19
Re: Join not working in HIVE - Hive - [mail # user]
...Hive supports only equi-join  I recommend you to read some hive manual before use it. (e.g. http://hive.apache.org/docs/r0.9.0/language_manual/joins.html https://cwiki.apache.org/Hive/l...
   Author: Alexander Pivovarov, 2012-12-17, 20:45
Re: best way to load millions of gzip files in hdfs to one table in hive? - Hive - [mail # user]
...Options 1. create table and put files under the table dir  2. create external table and point it to files dir  3. if files are small then I recomend to create new set of files usin...
   Author: Alexander Pivovarov, 2012-10-02, 20:16
where is hive mapreduce output directory - Hive - [mail # user]
...I want to run hadoop "job -history " command to get hive job statistics I can not find where is hive mapred output folder...
   Author: Alexander Pivovarov, 2012-09-14, 03:01
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