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[HIVE-964] handle skewed keys for a join in a separate job - Hive - [issue]
...The skewed keys can be written to a temporary table or file, and a followup conditional task can be used to perform the join on those keys.As a first step, JDBM can be used for those keys...
http://issues.apache.org/jira/browse/HIVE-964    Author: Namit Jain, 2014-07-22, 09:25
[HIVE-4095] Add exchange partition in Hive - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-4095    Author: Namit Jain, 2014-07-21, 05:57
[HIVE-707] add group_concat - Hive - [issue]
...Moving the discussion to a new jira:I've implemented group_cat() in a rush, and found something difficult to slove:1. function group_cat() has a internal order by clause, currently, we can't...
http://issues.apache.org/jira/browse/HIVE-707    Author: Namit Jain, 2014-07-04, 10:32
[HIVE-4281] add hive.map.groupby.sorted.testmode - Hive - [issue]
...The idea behind this would be to test hive.map.groupby.sorted.Since this is a new feature, it might be a good idea to run it in test mode,where a query property would denote that this query ...
http://issues.apache.org/jira/browse/HIVE-4281    Author: Namit Jain, 2014-06-15, 06:08
[HIVE-3508] create cube and rollup operators in hive without mapside aggregation - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-3508    Author: Namit Jain, 2014-06-10, 19:40
[HIVE-3925] dependencies of fetch task are not shown by explain - Hive - [issue]
...A simple query like:hive> explain select * from src order by key;OKABSTRACT SYNTAX TREE:  (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_...
http://issues.apache.org/jira/browse/HIVE-3925    Author: Namit Jain, 2014-05-27, 19:24
[HIVE-3297] change hive.auto.convert.join's default value to true - Hive - [issue]
...For unit tests also, this parameter should be set to true....
http://issues.apache.org/jira/browse/HIVE-3297    Author: Namit Jain, 2014-05-20, 08:24
[HIVE-3276] optimize union sub-queries - Hive - [issue]
...It might be a good idea to optimize simple union queries containing map-reduce jobs in at least one of the sub-qeuries.For eg:a query like:insert overwrite table T1 partition P1select * from...
http://issues.apache.org/jira/browse/HIVE-3276    Author: Namit Jain, 2014-05-13, 11:17
[HIVE-3833] object inspectors should be initialized based on partition metadata - Hive - [issue]
...Currently, different partitions can be picked up for the same input split based on theserdes' etc. And, we dont allow to change the schema for LazyColumnarBinarySerDe.Instead of that, differ...
http://issues.apache.org/jira/browse/HIVE-3833    Author: Namit Jain, 2014-05-12, 16:47
[HIVE-1608] use sequencefile as the default for storing intermediate results - Hive - [issue]
...The only argument for having a text file for storing intermediate results seems to be better debuggability.But, tailing a sequence file is possible, and it should be more space efficient...
http://issues.apache.org/jira/browse/HIVE-1608    Author: Namit Jain, 2014-04-18, 22:25
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