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[HIVE-6922] NullPointerException in collect_set() UDAF - Hive - [issue]
...Steps to reproduce the bug:create table temp(key int, value string);-- leave the table emptyselect collect_set(key) from temp where key=0;Error: java.lang.RuntimeException: Hive Runtime Erro...
http://issues.apache.org/jira/browse/HIVE-6922    Author: Sun Rui, 2014-04-19, 11:31
[HIVE-4055] add Date data type - Hive - [issue]
...Add Date data type, a new primitive data type which supports the standard SQL date type.Basically, the implementation can take HIVE-2272 and HIVE-2957 as references....
http://issues.apache.org/jira/browse/HIVE-4055    Author: Sun Rui, 2014-02-28, 14:39
[HIVE-6120] Add GroupBy optimization to eliminate un-needed partial distinct aggregations - Hive - [issue]
...In most cases, partial distinct aggregation is not needed in map-side groupby. The exception is that with sorted bucketized tables partial distinct aggregation can be done by the mappers in ...
http://issues.apache.org/jira/browse/HIVE-6120    Author: Sun Rui, 2013-12-30, 03:57
[HIVE-5891] Alias conflict when merging multiple mapjoin tasks into their common child mapred task - Hive - [issue]
...Use the following test case with HIVE 0.12:create table src(key int, value string);load data local inpath 'src/data/files/kv1.txt' overwrite into table src;select * from (  select ...
http://issues.apache.org/jira/browse/HIVE-5891    Author: Sun Rui, 2013-12-25, 23:09
[HIVE-6021] Problem in GroupByOperator for handling distinct aggrgations - Hive - [issue]
...Use the following test case with HIVE 0.12:create table src(key int, value string);load data local inpath 'src/data/files/kv1.txt' overwrite into table src;set hive.map.aggr=false; select co...
http://issues.apache.org/jira/browse/HIVE-6021    Author: Sun Rui, 2013-12-18, 18:50
[HIVE-5256] A map join operator may have in-consistent output row schema with the common join operator which it will replace - Hive - [issue]
...When generating a common join operator, Semantic Analyzer gets the input RowResolver of each parent operators. It then uses the following piece of code to interate the tables from the RowRes...
http://issues.apache.org/jira/browse/HIVE-5256    Author: Sun Rui, 2013-09-12, 06:09
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