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[HIVE-2750] Hive multi group by single reducer optimization causes invalid column reference error - Hive - [issue]
...After the optimization, if two query blocks have the same distinct clause and the same group by keys, but the first query block does not reference all the rows the second query block does, a...
http://issues.apache.org/jira/browse/HIVE-2750    Author: Kevin Wilfong, 2015-11-19, 18:38
[HIVE-2848] Add validation to HiveConf ConfVars - Hive - [issue]
...It would be good if we could add some validation to ConfVars in the HiveConf when they are set.At least if a variable is supposed to be boolean, numeric, or strict/nonstrict, it shouldn't be...
http://issues.apache.org/jira/browse/HIVE-2848    Author: Kevin Wilfong, 2014-11-14, 02:34
[HIVE-2758] Metastore is caching too aggressively - Hive - [issue]
...The metastore is caching values, like table names and locations too aggressively, leading to inconsistencies across Hive clients and metastore Thrift servers.For example, open two Hive clien...
http://issues.apache.org/jira/browse/HIVE-2758    Author: Kevin Wilfong, 2014-10-31, 12:28
[HIVE-4324] ORC Turn off dictionary encoding when number of distinct keys is greater than threshold - Hive - [issue]
...Add a configurable threshold so that if the number of distinct values in a string column is greater than that fraction of non-null values, dictionary encoding is turned off....
http://issues.apache.org/jira/browse/HIVE-4324    Author: Kevin Wilfong, 2014-08-09, 20:34
[HIVE-3527] Allow CREATE TABLE LIKE command to take TBLPROPERTIES - Hive - [issue]
...CREATE TABLE ... LIKE ... commands currently don't take TBLPROPERTIES.  I think it would be a useful feature....
http://issues.apache.org/jira/browse/HIVE-3527    Author: Kevin Wilfong, 2014-06-15, 06:16
[HIVE-3903] Allow updating bucketing/sorting metadata of a partition through the CLI - Hive - [issue]
...Right now users can update the bucketing/sorting metadata of a table through the CLI, but not a partition.  Use case:Need to merge a partition's files, but it's bucketed/sorted, so want...
http://issues.apache.org/jira/browse/HIVE-3903    Author: Kevin Wilfong, 2014-06-15, 06:12
[HIVE-2397] Support with rollup option for group by - Hive - [issue]
...We should support the ROLLUP operator similar to the way MySQL is implemented. Exerted from MySQL documents:mysql> SELECT year, country, product, SUM(profit)    -> FROM sales...
http://issues.apache.org/jira/browse/HIVE-2397    Author: Kevin Wilfong, 2014-06-15, 05:38
[HIVE-2853] Add pre event listeners to metastore - Hive - [issue]
...Currently there are event listeners in the metastore which run after the completion of a method.  It would be useful to have similar hooks which run before the metastore method is execu...
http://issues.apache.org/jira/browse/HIVE-2853    Author: Kevin Wilfong, 2014-04-27, 22:38
[HIVE-2621] Allow multiple group bys with the same input data and spray keys to be run on the same reducer. - Hive - [issue]
...Currently, when a user runs a query, such as a multi-insert, where each insertion subclause consists of a simple query followed by a group by, the group bys for each clause are run on a sepa...
http://issues.apache.org/jira/browse/HIVE-2621    Author: Kevin Wilfong, 2014-04-23, 22:08
[HIVE-3272] RetryingRawStore will perform partial transaction on retry - Hive - [issue]
...By the time the RetryingRawStore retries a command the transaction encompassing it has already been rolled back.  This means that it will perform the remainder of the raw store commands...
http://issues.apache.org/jira/browse/HIVE-3272    Author: Kevin Wilfong, 2014-03-27, 20:01
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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