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[HIVE-2048] Expedite Partition Pruning - Hive - [issue]
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...Partition pruning is a large part of Hive client side overhead. Partition filter has been introduced by HIVE-1609, but it is enabled due to JDO issues (HIVE-1853, HIVE-1862). This JIRA is cr...
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http://issues.apache.org/jira/browse/HIVE-2048
Author: Ning Zhang,
2012-08-21, 09:59
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[HIVE-2050] batch processing partition pruning process - Hive - [issue]
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...For partition predicates that cannot be pushed down to JDO filtering (HIVE-2049), we should fall back to the old approach of listing all partition names first and use Hive's expression evalu...
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http://issues.apache.org/jira/browse/HIVE-2050
Author: Ning Zhang,
2012-08-21, 08:48
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[HIVE-2049] Push down partition pruning to JDO filtering for a subset of partition predicates - Hive - [issue]
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...Several tasks: expose HiveMetaStoreClient.listPartitionsByFilter() to Hive.java so that PartitionPruner can use that for certain partition predicates. figure out a safe subset of partition p...
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http://issues.apache.org/jira/browse/HIVE-2049
Author: Ning Zhang,
2012-08-21, 08:48
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[HIVE-2187] Mappers across multiple partitions with different SerDe failed - Hive - [issue]
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...If 2 partitions have the same input file format, but different serde, we should not combine them into the same mapper. Otherwise the mapper will fail....
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http://issues.apache.org/jira/browse/HIVE-2187
Author: Ning Zhang,
2012-08-03, 06:39
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[HIVE-1901] ColumnPruner bug in case of LATERAL VIEW and UDTF - Hive - [issue]
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...The following query EXPLAIN SELECT stat FROM (SELECT nt.value AS n, dt.value AS d_evt, nt.hr as hrFROM srcpart ntJOIN srcpart dtON (nt.ds='2008-04-08' AND dt.ds='2008-04-08' AND nt.key=dt.ke...
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http://issues.apache.org/jira/browse/HIVE-1901
Author: Ning Zhang,
2012-07-25, 04:17
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[HIVE-2035] Use block-level merge for RCFile if merging intermediate results are needed - Hive - [issue]
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...Currently if hive.merge.mapredfiles and/or hive.merge.mapfile is set to true the intermediate data could be merged using an additional MapReduce job. This could be quite expensive if the dat...
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http://issues.apache.org/jira/browse/HIVE-2035
Author: Ning Zhang,
2012-07-17, 01:16
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[HIVE-1101] Extend Hive ODBC to support more functions - Hive - [issue]
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...Currently Hive ODBC driver only support a a minimum list of functions to ensure some application work. Some other applications require more function support. These functions include:*SQLCanc...
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http://issues.apache.org/jira/browse/HIVE-1101
Author: Ning Zhang,
2012-06-29, 21:41
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[HIVE-1603] support CSV text file format - Hive - [issue]
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...Comma Separated Values (CSV) text format are commonly used in exchanging relational data between heterogeneous systems. Currently Hive uses TextFile format when displaying query results. Thi...
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http://issues.apache.org/jira/browse/HIVE-1603
Author: Ning Zhang,
2012-04-24, 13:32
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[HIVE-1885] Extended Read/WriteEntity to include Database and Index - Hive - [issue]
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...Currently all DDLs on indexes and databases do not have Read/WriteEntities registered. This prevents pre/post execution hooks on databases and indexes. We should extende Read/WriteEntity for...
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http://issues.apache.org/jira/browse/HIVE-1885
Author: Ning Zhang,
2012-02-24, 23:03
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[HIVE-741] NULL is not handled correctly in join - Hive - [issue]
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...With the following data in table input4_cb:Key Value------ --------NULL 32518 NULLThe followin...
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http://issues.apache.org/jira/browse/HIVE-741
Author: Ning Zhang,
2012-02-16, 23:42
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