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[HIVE-2512] After HIVE-2145, Hive disallow any use of function in cluster-by clause - Hive - [issue]
...After HIVE-2145, the following query returns a semantic analysis error: FROM src SELECT * cluster by rand();FAILED: Error in semantic analysis: functions are not supported in order byLooking...
http://issues.apache.org/jira/browse/HIVE-2512    Author: Ning Zhang, 2013-07-07, 17:01
[HIVE-747] void type (null column) cannot be UNIONed with other type - Hive - [issue]
...hive> select * from (select NULL from zshao_tt union all select 1 from zshao_tt)x;select * from (select NULL from zshao_tt union all select 1 from zshao_tt)x;FAILED: Error in semantic ana...
http://issues.apache.org/jira/browse/HIVE-747    Author: Ning Zhang, 2013-05-14, 09:07
[HIVE-1309] let user specify "bad file" rather than HIVE_DEFAULT_PARTITION in dynamic partition insert - Hive - [issue]
...Currently if the dynamic partition column value is "bad" – null, empty string, etc., the row will be put into the _HIVE_DEFAULT_PARTITION_ where the bad column value will be lost (repl...
http://issues.apache.org/jira/browse/HIVE-1309    Author: Ning Zhang, 2013-04-20, 23:16
[HIVE-948] more query plan optimization rules - Hive - [issue]
...Many query plans are not optimal in that they contain redundant operators. Some examples are unnecessary select operators (select followed by select, select output being the same as input et...
http://issues.apache.org/jira/browse/HIVE-948    Author: Ning Zhang, 2013-02-26, 05:24
[HIVE-2017] Driver.execute() should maintaining SessionState in case of runtime errors - Hive - [issue]
...Here's a snippet from Driver.execute():            // TODO: This error messaging is not very informative. Fix that.          ...
http://issues.apache.org/jira/browse/HIVE-2017    Author: Ning Zhang, 2013-02-25, 21:39
[HIVE-1361] table/partition level statistics - Hive - [issue]
...At the first step, we gather table-level stats for non-partitioned table and partition-level stats for partitioned table. Future work could extend the table level stats to partitioned table ...
http://issues.apache.org/jira/browse/HIVE-1361    Author: Ning Zhang, 2013-01-19, 02:14
[HIVE-3586] External partition - Hive - [issue]
...External tables are extremely useful when two or more tables share the same data but would like to avoid the data copy and ownership conflicts. We found it useful to extend the "external" co...
http://issues.apache.org/jira/browse/HIVE-3586    Author: Ning Zhang, 2012-10-16, 19:07
[HIVE-2050] batch processing partition pruning process - Hive - [issue]
...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...
http://issues.apache.org/jira/browse/HIVE-2050    Author: Ning Zhang, 2012-08-21, 08:48
[HIVE-2049] Push down partition pruning to JDO filtering for a subset of partition predicates - Hive - [issue]
...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...
http://issues.apache.org/jira/browse/HIVE-2049    Author: Ning Zhang, 2012-08-21, 08:48
[HIVE-2187] Mappers across multiple partitions with different SerDe failed - Hive - [issue]
...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....
http://issues.apache.org/jira/browse/HIVE-2187    Author: Ning Zhang, 2012-08-03, 06:39
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