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[HIVE-2728] fix some problems when enable automatic index - Hive - [issue]
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...while adding a new testcase in HIVE-2727, i found that the current auto index can be more aggressive. And also i doubt that there is count(1) query which should not go to index, but actually...
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http://issues.apache.org/jira/browse/HIVE-2728
Author: He Yongqiang,
2012-01-25, 00:34
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[HIVE-472] HiveFileFormatUtils's checkInputFormat does not include RCFile - Hive - [issue]
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http://issues.apache.org/jira/browse/HIVE-472
Author: He Yongqiang,
2011-12-17, 00:07
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[HIVE-502] Optimize RCFile's performance by removeing all synchronized modifiers - Hive - [issue]
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...Tests by Zheng and me both show that removing all synchronized modifiers can improve RCFile's performance by about 15+%.This will make RCFile's reader and writer not thread safe any lo...
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http://issues.apache.org/jira/browse/HIVE-502
Author: He Yongqiang,
2011-12-17, 00:07
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[HIVE-479] Change RCFileOutputFormat's generic signatute to be <WritableComparable, ..> - Hive - [issue]
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...In one test for hive-477, i found that the below command can not sucessfully pass:$HADOOP_HOME/bin/hadoop jar $HADOOP_HOME/contrib/streaming/hadoop-0.19.0-streaming.jar -input /user/hive/war...
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http://issues.apache.org/jira/browse/HIVE-479
Author: He Yongqiang,
2011-12-17, 00:07
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[HIVE-582] "SELECT count(1) as cnt from src x" not working for column pruning - Hive - [issue]
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...The query "SELECT count(1) as cnt from src x" has some problems, even though nullgroup*.q passed in tests. Will check and solve it in this jira.A wrong plan sometimes can be generated ...
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http://issues.apache.org/jira/browse/HIVE-582
Author: He Yongqiang,
2011-12-17, 00:07
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[HIVE-773] remove lzocodec import from FileSinkOperator - Hive - [issue]
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http://issues.apache.org/jira/browse/HIVE-773
Author: He Yongqiang,
2011-12-17, 00:06
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[HIVE-957] Partition Metadata and Table Metadata - Hive - [issue]
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...Right now, we choose to use partition lever metadata. All metadata (column names, column types, fileformat, serde class, serde properties) right now are from partition level metadata. But hi...
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http://issues.apache.org/jira/browse/HIVE-957
Author: He Yongqiang,
2011-12-17, 00:06
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[HIVE-819] Add lazy decompress ability to RCFile - Hive - [issue]
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...This is especially useful for a filter scanning. For example, for query 'select a, b, c from table_rc_lazydecompress where a>1;' we only need to decompress the block data of b,c columns w...
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http://issues.apache.org/jira/browse/HIVE-819
Author: He Yongqiang,
2011-12-17, 00:06
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[HIVE-1088] RCFile RecordReader's first split will read duplicate rows if the split end is < the first SYNC mark - Hive - [issue]
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http://issues.apache.org/jira/browse/HIVE-1088
Author: He Yongqiang,
2011-12-17, 00:06
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[HIVE-909] NULL value is not correctly handled by ColumnarStruct - Hive - [issue]
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http://issues.apache.org/jira/browse/HIVE-909
Author: He Yongqiang,
2011-12-17, 00:05
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