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[HIVE-3784] de-emphasize mapjoin hint - Hive - [issue]
...hive.auto.convert.join has been around for a long time, and is pretty stable.When mapjoin hint was created, the above parameter did not exist.The only reason for the user to specify a mapjoi...
http://issues.apache.org/jira/browse/HIVE-3784    Author: Namit Jain, 2013-02-25, 06:52
[HIVE-3710] HiveConf.ConfVars.HIVE_STATS_COLLECT_RAWDATASIZE should not be checked in FileSinkOperator - Hive - [issue]
...It should be part of the plan instead....
http://issues.apache.org/jira/browse/HIVE-3710    Author: Namit Jain, 2013-02-22, 03:58
[HIVE-3741] Driver.validateConfVariables() should perform more validations - Hive - [issue]
...Like List Bucketing, it should also check for HIVE_OPTIMIZE_UNION_REMOVE....
http://issues.apache.org/jira/browse/HIVE-3741    Author: Namit Jain, 2013-02-21, 21:23
[HIVE-4038] each mapper/reducer should have a plan for itself rather than the global plan - Hive - [issue]
...It is a pretty fundamental change, and will require a lot of cleanup....
http://issues.apache.org/jira/browse/HIVE-4038    Author: Namit Jain, 2013-02-19, 04:39
[HIVE-3571] add a way to run a small unit quickly - Hive - [issue]
...A simple unit test:ant test -Dtestcase=TestCliDriver -Dqfile=groupby2.qtakes a long time.There should be a quick way to achieve that for debugging....
http://issues.apache.org/jira/browse/HIVE-3571    Author: Namit Jain, 2013-02-18, 12:39
[HIVE-1035] limit can be optimized if the limit is happening on the reducer - Hive - [issue]
...A query like:select ... from A join B..  limit 10;where the limit is performed on the reducer can be further optimized.Currently, all the operators on the reduce side will be done, but ...
http://issues.apache.org/jira/browse/HIVE-1035    Author: Namit Jain, 2013-02-15, 06:25
[HIVE-201] fetch task appears as a root task in explain plan - Hive - [issue]
...fetch task appears as a root task in explain plan. that should be changed so that fetch task depends on the execution task appropriately...
http://issues.apache.org/jira/browse/HIVE-201    Author: Namit Jain, 2013-02-15, 06:24
[HIVE-4006] Add local sort operator - Hive - [issue]
...We've seen in the past that sorting data on a specific column can greatly improve the compression of data.  The problem is that sorting data is expensive and requires a reduce phase.One...
http://issues.apache.org/jira/browse/HIVE-4006    Author: Namit Jain, 2013-02-11, 11:54
Re: [VOTE] Graduate HCatalog from the incubator and become part of Hive - Hive - [mail # dev]
...+1   On 2/5/13 2:54 PM, "Alexander Alten-Lorenz"  wrote:  ...
   Author: Namit Jain, 2013-02-07, 04:06
[HIVE-3988] lateral view followed by mapjoin should not be allowed - Hive - [issue]
...Consider the following queries:drop table lazy_array_map;create table lazy_array_map (map_col map<int,string>, array_col array <string> );INSERT OVERWRITE TABLE lazy_array_map se...
http://issues.apache.org/jira/browse/HIVE-3988    Author: Namit Jain, 2013-02-05, 08:33
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