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[DRILL-2579] JDBC unit tests will time out after one testcase fails with unexpected results.   - Drill - [issue]
...In unit testcase such as TestJdbcQuery, if there is one failing unit testcase  due to unexpected results, then the rest of unit test cases will hit timeout issue. See following stack tr...
http://issues.apache.org/jira/browse/DRILL-2579    Author: Jinfeng Ni, 2015-04-08, 18:20
Re: Counting large numbers of unique values - Drill - [mail # user]
...ASAIK, Drill's planner currently does not expose the sort-ness ofunderlying data; if the data is pre-sorted, Drill planner would notrecognize that, and still would require a sort operator fo...
   Author: Jinfeng Ni, 2015-04-07, 22:45
Re: TSV with a JSON column? - Drill - [mail # user]
...That's right.  columns[1] from tsv file is regarded as a VARCHAR column.You have to use convert_from function.0: jdbc:drill:zk=local> select t.colA.v from (selectconvert_from(columns...
   Author: Jinfeng Ni, 2015-04-03, 14:07
Re: [VOTE] Release Apache Drill 0.8.0 (rc1) - Drill - [mail # dev]
...+1* Download src tar ball and run full build on Mac OS twice.  Run severalsample queries. All are good.* Verified md5 / sha1 checksumFor DRILL-2458, I feel this is not a show stopper, s...
   Author: Jinfeng Ni, 2015-03-28, 18:14
[DRILL-2236] Optimize hash inner join by swapping inputs based on row count comparison. - Drill - [issue]
...Currently, Drill's planner does not consider all the possible join order sequence during the planning phase, because one particular optimizer rule (SwapJoinrule) is not enabled.  The re...
http://issues.apache.org/jira/browse/DRILL-2236    Author: Jinfeng Ni, 2015-03-28, 00:34
[DRILL-1499] Different column order could appear in the result set for a schema-less select * query, even there are no changing schemas. - Drill - [issue]
...For a select * query referring to a schema-less table, Drill could return different column, depending on the physical operators the query involves:Q1:select * from cp.`employee.json` limit 3...
http://issues.apache.org/jira/browse/DRILL-1499    Author: Jinfeng Ni, 2015-03-27, 22:52
Re: mongodb query all return with * problem - Drill - [mail # user]
...This seems to have been fixed in Drill's master branch, inhttps://issues.apache.org/jira/browse/DRILL-1692#Which version of Drill are you using?On Thu, Mar 26, 2015 at 1:46 AM, Wang Darrell ...
   Author: Jinfeng Ni, 2015-03-26, 11:55
[DRILL-1911] Querying same field multiple times with different case would hit memory leak and return incorrect result. - Drill - [issue]
...git.commit.id.abbrev=309e1beIf query the same field twice, with different case, Drill will throw memory assertion error.  select employee_id, Employee_id from cp.`employee.json` limit 2...
http://issues.apache.org/jira/browse/DRILL-1911    Author: Jinfeng Ni, 2015-03-17, 20:26
[DRILL-2400] Drill's query planner did not merge multiple filters into one. - Drill - [issue]
...Let's say we have a view defined with a WHERE clause as the following:"create or replace view MyViewWithFilter as " +        " SELECT  first_name, " + &nbs...
http://issues.apache.org/jira/browse/DRILL-2400    Author: Jinfeng Ni, 2015-03-07, 21:35
[DRILL-2269] Provide default implementation for getting cost of evaluating an expression in base class of LogicalExpression, in stead of throw Exception - Drill - [issue]
...Today, the abstract class of LogicalExpression will throw Exception for two methods related to estimate the cost of evaluating an expression, in the hope that sub classes will override those...
http://issues.apache.org/jira/browse/DRILL-2269    Author: Jinfeng Ni, 2015-02-24, 23:20
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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