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[HIVE-3402] user should not specify mapjoin to perform bucketed join - Hive - [issue]
...Currently, in order to perform a bucketed join, the user needs to set hive.optimize.bucketmapjoin to true, and also specify the mapjoin hint.The user should not specify any hints....
http://issues.apache.org/jira/browse/HIVE-3402    Author: Namit Jain, 2012-10-02, 04:12
[HIVE-1003] optimize metadata only queries - Hive - [issue]
...Queries like:select max(ds) from T where ds is a partitioning column should be optimized....
http://issues.apache.org/jira/browse/HIVE-1003    Author: Namit Jain, 2012-09-28, 23:50
[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, 2012-09-27, 11:05
[HIVE-3507] Some of the tests are not deterministic - Hive - [issue]
...skewjoinopt* tests are not deterministic...
http://issues.apache.org/jira/browse/HIVE-3507    Author: Namit Jain, 2012-09-26, 14:24
[HIVE-3502] design efficient bucketing techniques - Hive - [issue]
...Currently, the bucketing techniques are fairly expensive - The bucketing keys have to be the same as the reduction keys and the process of bucketization requiresa fully blown map-reduce job....
http://issues.apache.org/jira/browse/HIVE-3502    Author: Namit Jain, 2012-09-25, 04:44
[HIVE-2847] Add support for query rewrite from the metadata - Hive - [issue]
...A simple query like: select count(1) from Tshould be able to get the results from the metadata instead of scanning the complete input table T.2. the metadata only queries today does not scal...
http://issues.apache.org/jira/browse/HIVE-2847    Author: Namit Jain, 2012-09-23, 16:36
[HIVE-3477] Duplicate data possible with speculative execution for dynamic partitions - Hive - [issue]
...Consider a query like:insert overwrite T partition (ds)select * from(mapreduce-subq1  union allmapreduce-subq2)x;Once, mapreduce-subq1 and mapreduce-subq2 are done, the task for th...
http://issues.apache.org/jira/browse/HIVE-3477    Author: Namit Jain, 2012-09-20, 02:03
[HIVE-3476] Change bucketGroup in GroupByDesc to noHash - Hive - [issue]
...That's what the variable is doing.The problem with such a change is that it will change ~200 test output files....
http://issues.apache.org/jira/browse/HIVE-3476    Author: Namit Jain, 2012-09-18, 05:11
[HIVE-3283] bucket information should be used from the partition instead of the table - Hive - [issue]
...Currently Hive uses the number of buckets from the table object.Ideally, the number of buckets from the partition should be used...
http://issues.apache.org/jira/browse/HIVE-3283    Author: Namit Jain, 2012-09-15, 23:24
[HIVE-2595] add a table level property which does not let the table or any of its partitions to be dropped - Hive - [issue]
...The current approach:alter table <TBL> enable no_drop;does not prevent the partitions from being dropped.This new property should prevent both the table and any of its partitions (curr...
http://issues.apache.org/jira/browse/HIVE-2595    Author: Namit Jain, 2012-09-14, 19:24
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