[jira] [Resolved] (DRILL-658) Add support for multiple distinct counts without a grouping key.

["Aman Sinha (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-658?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aman Sinha resolved DRILL-658.
------------------------------
    Resolution: Fixed

This is fixed by the NLJ changes in commit #: 3a232d81e
Here's the test result:  
{code}
0: jdbc:drill:zk=local> select count(distinct l_partkey), count(distinct l_suppkey), count(distinct l_orderkey) from lineitem;
+------------+------------+------------+
|   EXPR$0   |   EXPR$1   |   EXPR$2   |
+------------+------------+------------+
| 200000     | 10000      | 1500000    |
+------------+------------+------------+
{code}

> Add support for multiple distinct counts without a grouping key.
> ----------------------------------------------------------------
>
>                 Key: DRILL-658
>                 URL: https://issues.apache.org/jira/browse/DRILL-658
>             Project: Apache Drill
>          Issue Type: New Feature
>          Components: Query Planning & Optimization
>            Reporter: Chun Chang
>            Assignee: Aman Sinha
>             Fix For: 0.9.0
>
>
> postgres:
> foodmart=# select count(distinct(c_int)), count(distinct(c_bigint)), count(distinct(c_float4)), count(distinct(c_float8)) from data;
>  count | count | count | count
> -------+-------+-------+-------
>     21 |    23 |    22 |    20
> (1 row)
> drill:
> 0: jdbc:drill:schema=dfs> select count(distinct(c_int)), count(distinct(c_bigint)), count(distinct(c_float4)), count(distinct(c_float8)) from data;
> Query failed: org.apache.drill.exec.rpc.RpcException: Remote failure while running query.[error_id: "658d1c88-3968-457f-82e1-26c76ff7b54b"
> endpoint {
>   address: "qa-node120.qa.lab"
>   user_port: 31010
>   control_port: 31011
>   data_port: 31012
> }
> error_type: 0
> message: "Failure while parsing sql. < CannotPlanException:[ Node [rel#5852:Subset#33.PHYSICAL.SINGLETON([]).[]] could not be implemented;



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