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[DRILL-1102] Use same set of keys to distribute rows when planner generates exchange for a join operator. - Drill - [issue]
...Today, planner might use a different key sets when generate hash-to-random exchange operator for a join's left and right side.For instance, if we have join condition :     L1 ...
http://issues.apache.org/jira/browse/DRILL-1102    Author: Jinfeng Ni, 2014-07-03, 18:50
[DRILL-698] Register scan-specific optimization rules using register() in RelNode interface. - Drill - [issue]
...Currently, drill will get all the storage-engine-specific rules in StoragePluginRegistry, and register all the rules (HBase, Hive, etc) with the optimizer planner.  This means even the ...
http://issues.apache.org/jira/browse/DRILL-698    Author: Jinfeng Ni, 2014-07-03, 18:50
Re: [jira] [Created] (DRILL-1100) Returning NULL instead of array-index-out-of-bound error - Drill - [mail # dev]
...Seems to me that returning null makes sense, when Drill is dealing withschema-less input.Some rows may have the 12-th column, while some rows do not. In such case,user might expect Drill to ...
   Author: Jinfeng Ni, 2014-07-03, 01:52
[DRILL-1006] Fix case expression when conditions are nullable type. - Drill - [issue]
...There are two issues in case expressions:1.  ExpressionValidator enforces that the conditions in a case expression have to be non-nullable type.  This is not true ; a condition cou...
http://issues.apache.org/jira/browse/DRILL-1006    Author: Jinfeng Ni, 2014-06-20, 21:28
[DRILL-1044] Optimize logical boolean operator evaluation using fast-success/fast-fail approach. - Drill - [issue]
...With short circuit evaluation supported for boolean and/or operators (DRILL-937), we could further optimize boolean and/or operators by re-ordering the evaluation sequence and choose to eval...
http://issues.apache.org/jira/browse/DRILL-1044    Author: Jinfeng Ni, 2014-06-20, 21:28
[DRILL-937] Boolean operators should use short-circuit evaluation. - Drill - [issue]
...When Drill evaluate a boolean operator ('and', 'or'), it should use the short-circuit evaluation approach : when one branch is sufficient enough to decide the final result, Drill should stop...
http://issues.apache.org/jira/browse/DRILL-937    Author: Jinfeng Ni, 2014-06-16, 22:33
[DRILL-636] Push Limit operator past project, left outer join, union all operator and down into scan operator - Drill - [issue]
...When we have a limit operator on top of project, left outer join, union all operator, we should push the limit operator, until the limit is put into scan operator. Doing so, it will reduce t...
http://issues.apache.org/jira/browse/DRILL-636    Author: Jinfeng Ni, 2014-06-16, 21:44
[DRILL-927] Run-time code generation support when a function parameter is complex nested type. - Drill - [issue]
...In this JIRA, we will enhance the run-time code generation component, in the following ways:1. Allow generate the run-time code for function whose parameter is FieldReader.  A parameter...
http://issues.apache.org/jira/browse/DRILL-927    Author: Jinfeng Ni, 2014-06-11, 16:52
[DRILL-847] Merging Receiver requires to canonicalize schemas of input batches - Drill - [issue]
...The Merge Receivers assumes all the incoming batches have the same schemas. If the incoming batches happen to have different schemas, the run-time generated code for merge receiver would not...
http://issues.apache.org/jira/browse/DRILL-847    Author: Jinfeng Ni, 2014-05-28, 23:15
[DRILL-665] Drill throw NPE or UnsupportedOperationException when case expression contains null value - Drill - [issue]
...Hi Tim,Per discussion yesterday,  we found Drill will throw NPE or UnsupportedOperationException when case expression contains null value.  (null value is added for the optional 'e...
http://issues.apache.org/jira/browse/DRILL-665    Author: Jinfeng Ni, 2014-05-28, 23:15
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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