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[HIVE-3776] support PIVOT in hive - Hive - [issue]
...It is a fairly well understood feature in databases....
http://issues.apache.org/jira/browse/HIVE-3776    Author: Namit Jain, 2012-12-06, 08:59
[HIVE-3639] join order across mutiple joins - Hive - [issue]
...This came up during a discussion with Sambavi - please add any details I mayhave missed.For a query of the form:select ..fromA join B on A.c1 = B.c1join C on B.c2=C.c2;A,B are joined first a...
http://issues.apache.org/jira/browse/HIVE-3639    Author: Namit Jain, 2012-12-05, 09:06
[HIVE-2641] SkewJoin should report progress while writing skew keys to HDFS - Hive - [issue]
...RowContainer.copyToDFSDirectory is used to write the skew keys to HDFS. But this can take a long time, and while it is happening, the MR framework does not see progress from the reducer. The...
http://issues.apache.org/jira/browse/HIVE-2641    Author: Namit Jain, 2012-12-05, 07:18
[HIVE-3328] add thrift APIs to create/drop views - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-3328    Author: Namit Jain, 2012-12-05, 07:12
[HIVE-3316] The order of the joined tables should be based on the sizes of the tables/partitions being joined - Hive - [issue]
...Currently, the join order is based on the order in which the user specified the tables....
http://issues.apache.org/jira/browse/HIVE-3316    Author: Namit Jain, 2012-12-05, 07:11
[HIVE-3575] maintain dependency between views/view partitions and tables/partitions - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-3575    Author: Namit Jain, 2012-12-05, 07:04
[HIVE-3471] Implement grouping sets in hive - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-3471    Author: Namit Jain, 2012-11-22, 10:34
[HIVE-609] optimize multi-group by - Hive - [issue]
...For query like:from srcinsert overwrite table dest1 select col1, count(distinct colx) group by col1insert overwrite table dest2 select col2, count(distinct colx) group by col2;If map side ag...
http://issues.apache.org/jira/browse/HIVE-609    Author: Namit Jain, 2012-11-21, 04:45
[HIVE-3432] perform a map-only group by if grouping key matches the sorting properties of the table - Hive - [issue]
...There should be an option to use bucketizedinputformat and use map-only group by. There would be no need to perform a map-side aggregation....
http://issues.apache.org/jira/browse/HIVE-3432    Author: Namit Jain, 2012-11-20, 02:09
Re: Top-K optimization - Hive - [mail # dev]
...Hi Siva,   Take a look at https://issues.apache.org/jira/browse/HIVE-3562.  It is in my todo list, but I have not been able to review this.  I think, this addresses a very sim...
   Author: Namit Jain, 2012-11-19, 09:46
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