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[HIVE-796] RCFile results missing columns from UNION ALL - Hive - [issue]
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...create table tt(a int, b string, c string) row format serde "org.apache.hadoop.hive.serde2.column.ColumnarSerDe" stored as RCFile;load data: 1 b c 2 e f 3 i ...
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http://issues.apache.org/jira/browse/HIVE-796
Author: Ning Zhang,
2011-12-17, 00:05
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[HIVE-1158] Introducing a new parameter for Map-side join bucket size - Hive - [issue]
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...Map-side join cache the small table in memory and join with the split of the large table at the mapper side. If the small table is too large, it uses RowContainer to cache a number of rows i...
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http://issues.apache.org/jira/browse/HIVE-1158
Author: Ning Zhang,
2011-12-17, 00:05
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[HIVE-776] make div as infix operator - Hive - [issue]
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http://issues.apache.org/jira/browse/HIVE-776
Author: Ning Zhang,
2011-12-17, 00:05
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[HIVE-875] Hive server does not work with standalone mode - Hive - [issue]
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...The TestHiveServer unittest failed with standalone=true....
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http://issues.apache.org/jira/browse/HIVE-875
Author: Ning Zhang,
2011-12-17, 00:05
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[HIVE-870] Implement LEFT SEMI JOIN - Hive - [issue]
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...Semi-join is an efficient way to unnest an IN/EXISTS subquery. For example,select * from Awhere A.id IN (select id from B where B.date> '2...
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http://issues.apache.org/jira/browse/HIVE-870
Author: Ning Zhang,
2011-12-17, 00:05
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[HIVE-912] table name in CTAS should be case-insensitive - Hive - [issue]
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...Table created in CTAS should be case sensitive. Currently the moveTask at the end of CTAS doesn't convert table name to lower case. This makes subsequent accessing to the table impossible si...
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http://issues.apache.org/jira/browse/HIVE-912
Author: Ning Zhang,
2011-12-17, 00:05
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[HIVE-949] Object deepCopy in GroupBy Operator - Hive - [issue]
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...In GroupByOperator, objects are first deep copied and then check whether or not the object is in the hash table (in hash-mode aggregation). In fact, object deep copy could be very expensive ...
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http://issues.apache.org/jira/browse/HIVE-949
Author: Ning Zhang,
2011-12-17, 00:05
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[HIVE-881] CTAS does not work on with fields terminator - Hive - [issue]
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...This query got wrong results: create table tmp row format fields terminated by ',' stored as textfile as select * from nzhang_tt;The result is the same as no "fields terminated by"....
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http://issues.apache.org/jira/browse/HIVE-881
Author: Ning Zhang,
2011-12-17, 00:05
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[HIVE-1307] More generic and efficient merge method - Hive - [issue]
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...Currently if hive.merge.mapfiles/mapredfiles=true, a new mapreduce job is create to read the input files and output to one reducer for merging. This MR job is created at compile time and one...
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http://issues.apache.org/jira/browse/HIVE-1307
Author: Ning Zhang,
2011-12-17, 00:04
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[HIVE-1341] Filter Operator Column Pruning should preserve the column order - Hive - [issue]
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...The column pruning process for the filter operator should preserve the order of input columns, otherwise it could result in miss match in columns in the down stream operators....
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http://issues.apache.org/jira/browse/HIVE-1341
Author: Ning Zhang,
2011-12-17, 00:04
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