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[HIVE-2145] NPE during parsing order-by expression - Hive - [issue]
...The following query throws NPE, where it should have throw parsing exception. hive> select key, count(1) cnt from src group by key order by count(1) limit 10;select key, count(1) cnt from...
http://issues.apache.org/jira/browse/HIVE-2145    Author: Ning Zhang, 2011-12-16, 23:56
[HIVE-2569] Too much debugging info on console if a job failed - Hive - [issue]
...When a job failed and Hive client tries to get the error message from failed task, it printed the following info on console for each task:Examining task ID: task_201110112120_773499_m_000037...
http://issues.apache.org/jira/browse/HIVE-2569    Author: Ning Zhang, 2011-12-16, 23:56
[HIVE-2519] Dynamic partition insert should enforce the order of the partition spec is the same as the one in schema - Hive - [issue]
...Suppose the table schema is (a string, b string) partitioned by (p1 string, p2 string), a dynamic partition insert is allowed to:insert overwrite ... partition (p2="...", p1);which will crea...
http://issues.apache.org/jira/browse/HIVE-2519    Author: Ning Zhang, 2011-12-16, 23:56
[HIVE-1343] add an interface in RCFile to support concatenation of two files without (de)compression - Hive - [issue]
...If two files are concatenated, we need to read each record in these files and write them back to the destination file. The IO cost is mostly unavoidable due to the lack of append functionali...
http://issues.apache.org/jira/browse/HIVE-1343    Author: Ning Zhang, 2011-12-16, 23:56
[HIVE-1980] Merging using mapreduce rather than map-only job failed in case of dynamic partition inserts - Hive - [issue]
...In dynamic partition insert and if merge is set to true and hive.mergejob.maponly=false, the merge MapReduce job will fail....
http://issues.apache.org/jira/browse/HIVE-1980    Author: Ning Zhang, 2011-12-16, 23:56
[HIVE-2556] upgrade script 008-HIVE-2246.mysql.sql contains syntax errors - Hive - [issue]
...source <script_name> gives syntax errors....
http://issues.apache.org/jira/browse/HIVE-2556    Author: Ning Zhang, 2011-12-16, 23:56
[HIVE-2028] Performance instruments for client side execution - Hive - [issue]
...Hive client side execution could sometimes takes a long time. This task is to instrument the client side code to measure the time spent in the most likely expensive components....
http://issues.apache.org/jira/browse/HIVE-2028    Author: Ning Zhang, 2011-12-16, 23:56
[HIVE-2082] Reduce memory consumption in preparing MapReduce job - Hive - [issue]
...Hive client side consume a lot of memory when the number of input partitions is large. One reason is that each partition maintains a list of FieldSchema which are intended to deal with schem...
http://issues.apache.org/jira/browse/HIVE-2082    Author: Ning Zhang, 2011-12-16, 23:56
[HIVE-2000] adding comments to Hive Stats JDBC queries - Hive - [issue]
...Stats gathering could issue a large number of JDBC queries to stats publisher and aggregator. In a shared DB environment, it's hard to tell which SQL statements are contributed by Hive stats...
http://issues.apache.org/jira/browse/HIVE-2000    Author: Ning Zhang, 2011-12-16, 23:56
[HIVE-1310] Partitioning columns should be of primitive types only - Hive - [issue]
...If the user specify the partitioning column as complex type (e.g., array, map) we should throw an error in semantic analyzer....
http://issues.apache.org/jira/browse/HIVE-1310    Author: Ning Zhang, 2011-12-16, 23:56
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