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[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, 2014-08-12, 17:28
[HIVE-5692] Make VectorGroupByOperator parameters configurable - Hive - [issue]
...The FLUSH_CHECK_THRESHOLD and PERCENT_ENTRIES_TO_FLUSH should be configurable....
http://issues.apache.org/jira/browse/HIVE-5692    Author: Remus Rusanu, 2014-07-04, 08:47
[HIVE-5595] Implement vectorized SMB JOIN - Hive - [issue]
...Vectorized implementation of SMB Map Join....
http://issues.apache.org/jira/browse/HIVE-5595    Author: Remus Rusanu, 2014-06-11, 21:01
[HIVE-7082] Vectorized parquet reader should create assigners only for the columns it assigns, not for scratch columns - Hive - [issue]
...The code in VectorizedParquetRecordReader.next and in VectorColumnAssignFactory.buildAssigners iterates for all columns in the vectorization context trying to build an assigner for it. Scrat...
http://issues.apache.org/jira/browse/HIVE-7082    Author: Remus Rusanu, 2014-05-19, 19:10
[HIVE-6949] VectorHashKeyWrapper hashCode() should use Murmur hash - Hive - [issue]
...HIVE-6924 replaced the hash of MapJoinKeyBytes with MurmurHash algorithm. Vectorized hash should do the same....
http://issues.apache.org/jira/browse/HIVE-6949    Author: Remus Rusanu, 2014-04-22, 06:24
[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-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
[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
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