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[HIVE-9015] Constant Folding optimizer doesn't handle expressions involving null - Hive - [issue]
...Expressions which are guaranteed to evaluate to null aren't folded by optimizer yet....
http://issues.apache.org/jira/browse/HIVE-9015    Author: Ashutosh Chauhan, 2014-12-04, 00:56
[HIVE-6617] Reduce ambiguity in grammar - Hive - [issue]
...As of today, antlr reports 214 warnings. Need to bring down this number, ideally to 0....
http://issues.apache.org/jira/browse/HIVE-6617    Author: Ashutosh Chauhan, 2014-12-04, 00:41
[HIVE-8907] Partition Condition Remover doesn't remove conditions involving cast on partition column - Hive - [issue]
...e.g,create table partition_test_partitioned(key string, value string) partitioned by (dt string) explain select * from partition_test_partitioned where cast(dt as double) >=100.0 and...
http://issues.apache.org/jira/browse/HIVE-8907    Author: Ashutosh Chauhan, 2014-12-04, 00:30
[HIVE-8979] Merge shims/common-secure into shims/common - Hive - [issue]
...After HIVE-8828 there is no reason to keep both. HIVE-8828 already migrated many of classes from common-secure into common. We should move rest as well and delete common-secure....
http://issues.apache.org/jira/browse/HIVE-8979    Author: Ashutosh Chauhan, 2014-11-28, 08:09
[HIVE-8828] Remove hadoop 20 shims - Hive - [issue]
...CLEAR LIBRARY CACHESee : mailing list discussion...
http://issues.apache.org/jira/browse/HIVE-8828    Author: Ashutosh Chauhan, 2014-11-27, 01:19
[HIVE-8980] Remove shimming of CombineHiveInputFormat - Hive - [issue]
...No longer needed post HIVE-8828...
http://issues.apache.org/jira/browse/HIVE-8980    Author: Ashutosh Chauhan, 2014-11-27, 01:19
[HIVE-8929] incorrect error message for cbo path - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-8929    Author: Ashutosh Chauhan, 2014-11-22, 17:41
[HIVE-8435] Add identity project remover optimization - Hive - [issue]
...In some cases there is an identity project in plan which is useless. Better to optimize it away to avoid evaluating it without any benefit at runtime....
http://issues.apache.org/jira/browse/HIVE-8435    Author: Ashutosh Chauhan, 2014-11-21, 19:11
[HIVE-8025] [CBO] Handle null-safe joins - Hive - [issue]
...We will not optimize query containing NS join expression because our join reordering algo cant optimize such joins....
http://issues.apache.org/jira/browse/HIVE-8025    Author: Ashutosh Chauhan, 2014-11-20, 16:20
[HIVE-8925] Move semantic correctness check to parser for having by queries - Hive - [issue]
...For invalid queries likeselect * from t1 having c1 > 0;Currently semantic correctness check is done in semantic analyzer, but this can be caught right at parse time by tightening up our g...
http://issues.apache.org/jira/browse/HIVE-8925    Author: Ashutosh Chauhan, 2014-11-20, 15:59
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NEW: Monitor These Apps!
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