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[HIVE-912] table name in CTAS should be case-insensitive - Hive - [issue]
...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...
http://issues.apache.org/jira/browse/HIVE-912    Author: Ning Zhang, 2011-12-17, 00:05
[HIVE-949] Object deepCopy in GroupBy Operator - Hive - [issue]
...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 ...
http://issues.apache.org/jira/browse/HIVE-949    Author: Ning Zhang, 2011-12-17, 00:05
[HIVE-881] CTAS does not work on with fields terminator - Hive - [issue]
...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"....
http://issues.apache.org/jira/browse/HIVE-881    Author: Ning Zhang, 2011-12-17, 00:05
[HIVE-1307] More generic and efficient merge method - Hive - [issue]
...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...
http://issues.apache.org/jira/browse/HIVE-1307    Author: Ning Zhang, 2011-12-17, 00:04
[HIVE-1341] Filter Operator Column Pruning should preserve the column order - Hive - [issue]
...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....
http://issues.apache.org/jira/browse/HIVE-1341    Author: Ning Zhang, 2011-12-17, 00:04
[HIVE-1047] Merge tasks in GenMRUnion1 - Hive - [issue]
...In the following query:from (select * from src  union all select * from src) sinsert overwrite table src_multi1 select * where key < 10insert overwrite table src_multi2 select * wher...
http://issues.apache.org/jira/browse/HIVE-1047    Author: Ning Zhang, 2011-12-17, 00:04
[HIVE-1492] FileSinkOperator should remove duplicated files from the same task based on file sizes - Hive - [issue]
...FileSinkOperator.jobClose() calls Utilities.removeTempOrDuplicateFiles() to retain only one file for each task. A task could produce multiple files due to failed attempts or speculative runs...
http://issues.apache.org/jira/browse/HIVE-1492    Author: Ning Zhang, 2011-12-17, 00:03
[HIVE-1543] set abort in ExecMapper when Hive's record reader got an IOException - Hive - [issue]
...When RecordReader got an IOException, ExecMapper does not know and will close the operators as if there is not error. We should catch this exception and avoid writing partial results to HDFS...
http://issues.apache.org/jira/browse/HIVE-1543    Author: Ning Zhang, 2011-12-17, 00:03
[HIVE-1357] CombineHiveInputSplit should initialize the inputFileFormat once for a single split - Hive - [issue]
...If a split consists of multiple files, the FileFormat should always be the same, whether RCFile or SequenceFile. Currently the CombineHiveInputSplit tries to get the inputFileFormat for each...
http://issues.apache.org/jira/browse/HIVE-1357    Author: Ning Zhang, 2011-12-17, 00:03
[HIVE-1260] from_unixtime should implment a overloading function to accept only bigint type - Hive - [issue]
...hive> select from_unixtime(cast(0 as bigint)) from nzhang_tt_bigint;FAILED: Error in semantic analysis: line 1:7 Wrong Arguments a: No matching method for class org.apache.hadoop.hive.ql....
http://issues.apache.org/jira/browse/HIVE-1260    Author: Ning Zhang, 2011-12-17, 00:03
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