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[HIVE-1283] map join does not stream the big tables - Hive - [issue]
...Currently, all the keys from the big table are read before the join is performed.It might be very slow if there is a hue skew, it might be a good optimization to stream the larger table...
http://issues.apache.org/jira/browse/HIVE-1283    Author: Namit Jain, 2013-01-14, 22:46
[HIVE-2555] Make the hashmap in map-side group by pluggable - Hive - [issue]
...There are a couple of implementations available (other than java.util.HashMap) - COLT, TROVE etc. to name a few.If the hashmap was pluggable, it would be easy to play around with different h...
http://issues.apache.org/jira/browse/HIVE-2555    Author: Namit Jain, 2013-01-14, 22:33
[HIVE-2846] Enhance bucketing and sorting support in hive - Hive - [issue]
...This task consists of a couple of sub-tasks.1. Removing the map-join hint completely. Moving all processing to runtime. Currently, bucketed map joins and sort merge joins are completelydrive...
http://issues.apache.org/jira/browse/HIVE-2846    Author: Namit Jain, 2013-01-14, 22:19
[HIVE-3426] union with same source should be optimized - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-3426    Author: Namit Jain, 2013-01-14, 22:09
[HIVE-3824] bug if different serdes are used for different partitions - Hive - [issue]
...Consider the following testcase:create table tst5 (key string, value string) partitioned by (ds string) stored as rcfile;insert overwrite table tst5 partition (ds='1') select * from src; &nb...
http://issues.apache.org/jira/browse/HIVE-3824    Author: Namit Jain, 2013-01-14, 22:05
[HIVE-3042] Thrift classes do not need to be passed to the mappers and reducers - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-3042    Author: Namit Jain, 2013-01-13, 23:36
[HIVE-3803] explain dependency should show the dependencies hierarchically in presence of views - Hive - [issue]
...It should also include tables whose partitions are being accessed...
http://issues.apache.org/jira/browse/HIVE-3803    Author: Namit Jain, 2013-01-13, 12:56
[HIVE-942] use bucketing for group by - Hive - [issue]
...Group by on a bucketed column can be completely performed on the mapper if the split can be adjusted to span the key boundary....
http://issues.apache.org/jira/browse/HIVE-942    Author: Namit Jain, 2013-01-11, 23:27
[HIVE-3888] wrong mapside groupby if no partition is being selected - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-3888    Author: Namit Jain, 2013-01-11, 20:34
[HIVE-3882] config for enabling HIVE-2723 - Hive - [issue]
...Since it a backward incompatible change, it might be a good idea to make itconfigurable....
http://issues.apache.org/jira/browse/HIVE-3882    Author: Namit Jain, 2013-01-11, 06:38
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB