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[HIVE-2603] recreate key and value when switching files in CombineHiveInputFormat - Hive - [issue]
...different files in the same mappers may have different types of key and value. So need to create the key and value object when switching files....
http://issues.apache.org/jira/browse/HIVE-2603    Author: He Yongqiang, 2012-01-25, 03:41
[HIVE-2713] ignore env variables with illegal letters when init ScriptOperator - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-2713    Author: He Yongqiang, 2012-01-25, 00:34
[HIVE-2728] fix some problems when enable automatic index - Hive - [issue]
...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...
http://issues.apache.org/jira/browse/HIVE-2728    Author: He Yongqiang, 2012-01-25, 00:34
[HIVE-472] HiveFileFormatUtils's checkInputFormat does not include RCFile - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-472    Author: He Yongqiang, 2011-12-17, 00:07
[HIVE-502] Optimize RCFile's performance by removeing all synchronized modifiers - Hive - [issue]
...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...
http://issues.apache.org/jira/browse/HIVE-502    Author: He Yongqiang, 2011-12-17, 00:07
[HIVE-479] Change RCFileOutputFormat's generic signatute to be <WritableComparable, ..> - Hive - [issue]
...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...
http://issues.apache.org/jira/browse/HIVE-479    Author: He Yongqiang, 2011-12-17, 00:07
[HIVE-582] "SELECT count(1) as cnt from src x" not working for column pruning - Hive - [issue]
...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 ...
http://issues.apache.org/jira/browse/HIVE-582    Author: He Yongqiang, 2011-12-17, 00:07
[HIVE-773] remove lzocodec import from FileSinkOperator - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-773    Author: He Yongqiang, 2011-12-17, 00:06
[HIVE-957] Partition Metadata and Table Metadata - Hive - [issue]
...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...
http://issues.apache.org/jira/browse/HIVE-957    Author: He Yongqiang, 2011-12-17, 00:06
[HIVE-819] Add lazy decompress ability to RCFile - Hive - [issue]
...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...
http://issues.apache.org/jira/browse/HIVE-819    Author: He Yongqiang, 2011-12-17, 00:06
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elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB