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[DRILL-1061] Add or modify Optiq rule such that two projects involving complex JSON objects should not be collapsed into one.   - Drill - [issue]
...Currently, Drill could not nest a function whose output is a complex JSON object into another function directly.  For instance,select foo.mycol.x from (        ...
http://issues.apache.org/jira/browse/DRILL-1061    Author: Jinfeng Ni, 2014-07-27, 19:50
[DRILL-1108] Fix run-time code Generator Mapping when join condition is a compound expression containing constants. - Drill - [issue]
...If a join operator in physical plan uses an expression as the join condition, like:  t1.column1 + 100 = t2.column2, then the run-time generated code currently will hit a compilation err...
http://issues.apache.org/jira/browse/DRILL-1108    Author: Jinfeng Ni, 2014-07-27, 19:50
[DRILL-697] A physical plan containing DirectGroupScan should execute in single node mode only. - Drill - [issue]
...If a physical plan contains DirectGroupScan, we should execute such plan in single node mode only. DirectGroupScan could not be serialized properly, preventing it from being sent to other fr...
http://issues.apache.org/jira/browse/DRILL-697    Author: Jinfeng Ni, 2014-07-25, 18:06
Re: Let's roll a release (0.4) and move to monthly releases - Drill - [mail # dev]
...+1 for monthly release. It's a good idea to use the similar approach as theother open source projects, and releasing monthly will make it easier forpeople in the community to try out Drill.O...
   Author: Jinfeng Ni, 2014-07-24, 18:40
[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
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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