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[HIVE-6873] DISTINCT clause in aggregates is handled incorrectly by vectorized execution - Hive - [issue]
...The vectorized aggregates ignore the DISTINCT clause. This cause incorrect results. Due to how GroupByOperatorDesc adds the DISTINCT keys to the overall aggregate keys the vectorized aggrega...
http://issues.apache.org/jira/browse/HIVE-6873    Author: Remus Rusanu, 2014-04-11, 18:19
[HIVE-5998] Add vectorized reader for Parquet files - Hive - [issue]
...HIVE-5783 is adding native Parquet support in Hive. As Parquet is a columnar format, it makes sense to provide a vectorized reader, similar to how RC and ORC formats have, to benefit from ve...
http://issues.apache.org/jira/browse/HIVE-5998    Author: Remus Rusanu, 2014-04-06, 12:59
[HIVE-4596] Fix serialization exceptions in VectorGroupByOperator - Hive - [issue]
...Going down the vectorization pathjava.lang.InstantiationException: org.apache.hadoop.hive.serde2.objectinspector.StandardStructObjectInspectorContinuing ...java.lang.RuntimeException: failed...
http://issues.apache.org/jira/browse/HIVE-4596    Author: Remus Rusanu, 2014-03-24, 20:39
[HIVE-6222] Make Vector Group By operator abandon grouping if too many distinct keys - Hive - [issue]
...Row mode GBY is becoming a pass-through if not enough aggregation occurs on the map side, relying on the shuffle+reduce side to do the work. Have VGBY do the same....
http://issues.apache.org/jira/browse/HIVE-6222    Author: Remus Rusanu, 2014-03-23, 18:35
[HIVE-4607] Support DISTINCT in vectorized aggregates - Hive - [issue]
...As the title says...
http://issues.apache.org/jira/browse/HIVE-4607    Author: Remus Rusanu, 2014-03-22, 09:23
Re: Review Request 18943: Make Vector Group By operator abandon grouping if too many distinct keys - Hive - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/18943/(Updated March 18, 2014, 10:09 a.m.)Review request for hive, Eric Hanson and Jitendra Pandey.Cha...
   Author: Remus Rusanu, 2014-03-18, 10:10
[HIVE-6594] UnsignedInt128 addition does not increase internal int array count resulting in corrupted values during serialization - Hive - [issue]
...Discovered this while investigating why my fix for HIVE-6222 produced diffs. I discovered that Decimal128.addDestructive does not adjust the internal count when an the number of relevant int...
http://issues.apache.org/jira/browse/HIVE-6594    Author: Remus Rusanu, 2014-03-11, 18:26
[HIVE-6614] Vectorized aggregates computed on map side diffe (hash mode) from values computed on reduce side (streaming mode) - Hive - [issue]
...HIVE-6222 allows vectorized aggregates to operate on streaming mode, ie. flush after each key change and let the shuffle+reduce side to compute the final aggregate values. An error in patch ...
http://issues.apache.org/jira/browse/HIVE-6614    Author: Remus Rusanu, 2014-03-11, 15:25
[HIVE-6600] Add Remus to Hive people list on credits page - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-6600    Author: Remus Rusanu, 2014-03-11, 12:01
[HIVE-6414] ParquetInputFormat provides data values that do not match the object inspectors - Hive - [issue]
...While working on HIVE-5998 I noticed that the ParquetRecordReader returns IntWritable for all 'int like' types, in disaccord with the row object inspectors. I though fine, and I worked my wa...
http://issues.apache.org/jira/browse/HIVE-6414    Author: Remus Rusanu, 2014-03-10, 18:22
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