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Re: Added support for covar_pop and covar_samp in optiq - Drill - [mail # dev]
...Hi Yash,The drill's custom optiq-core 0.9-drill-r2 is currently located herehttps://github.com/jacques-n/incubator-optiq/tree/0.9-drill-r2.  You mayapply OPTIQ-421 on top of 0.9-rill-r2...
   Author: Jinfeng Ni, 2014-09-25, 05:01
Re: Adding new drill functions to optiq syntax - Drill - [mail # dev]
...There are some differences between Drill simple functions and aggregatefunctions.For Drill simple function, optiq will check Drill function registry whethera function exists. So, all you nee...
   Author: Jinfeng Ni, 2014-09-22, 15:20
Re: Varargs in DrillSimpleFunc - Drill - [mail # dev]
...VarArgs is currently not supported.  To add support of VarArgs, thingsmight require to be changed:1.  In function template, a new annotation would be added to mark parameteras VarA...
   Author: Jinfeng Ni, 2014-09-12, 17:34
[DRILL-1265] Drill incorrectly return null value when evaluates an expression of repeated list. - Drill - [issue]
...This is a follow-up issue after DRILL-1258.  After the compiler error is fixed, the query completes with null value in the repeated list.JSON data: { "a" : [ { "x": [[1], [2, 20], [3, 3...
http://issues.apache.org/jira/browse/DRILL-1265    Author: Jinfeng Ni, 2014-08-31, 18:43
[DRILL-982] Parquet reader should return NULL value for non-exist column in execution phase, in stead of raising ExecutionSetupException - Drill - [issue]
...If query a non-exist column against a parquet file, DRILL currently raises ExecutionSetupException:SELECT  NON_EXIT_COLUMN from cp.`tpch/nation.parquet`;This will cause problem, when we...
http://issues.apache.org/jira/browse/DRILL-982    Author: Jinfeng Ni, 2014-08-29, 18:55
[DRILL-1337] TPCH Q13 may return incorrect rows :  Drill may incorrectly pull up a local right filter in a left outer join condition. - Drill - [issue]
...For TPCH Q13, Drill may discard some qualified rows, since Drill pulls up a local RHS filter in a left outer join, and put it on top of Join. There means the local RHS is treated as a post-j...
http://issues.apache.org/jira/browse/DRILL-1337    Author: Jinfeng Ni, 2014-08-29, 18:55
[DRILL-1258] Drill hit compile error in generated code when it evaluates an expression returning a repeated list. - Drill - [issue]
...If I have the following JSON input:{ "a" : [ { "x": [[1], [2], [3]], "y": "abc"}, { "x": [[5], [6], [7]], "y": "ABC"}] }{ "a" : [ { "x": [[10], [20], [30]], "y": "abc2"}, { "x": [[50], [60],...
http://issues.apache.org/jira/browse/DRILL-1258    Author: Jinfeng Ni, 2014-08-29, 18:55
Re: [jira] [Created] (DRILL-1311) Hash join does not support schema changes error - Drill - [mail # dev]
...If possible, can you post the physical plan for the join query you tried?W/o seeing the plan, all I can guess is that this SchemaChange error mightbe related to Project Pushdown. Currently, ...
   Author: Jinfeng Ni, 2014-08-19, 01:36
Re: I can't use Drill 0.4.0 Release in distributed mode - Drill - [mail # user]
...Setting planner.slice_target, together with the size of your dataset,determines the parallel degree of the execution. The higher this value is,the less likely Drill will execute the query ac...
   Author: Jinfeng Ni, 2014-08-14, 16:04
Re: Apache Drill Installation : select * from sys.drillbits Failing - Drill - [mail # user]
...Janino only compiles small java source code. If the generated code is large(for example, query has thousands of expression in the select clause),Drill will switch to JDK to compile the gener...
   Author: Jinfeng Ni, 2014-08-05, 18:56
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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