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https://issues.apache.org/jira/browse/DRILL-658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14264993#comment-14264993
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Victoria Markman commented on DRILL-658:
----------------------------------------
It's not just multiple distinct counts without grouping, also cases where you
mix distinct and non distinct aggregates, like query below:
{code}
0: jdbc:drill:schema=dfs> select avg(o_totalprice) + avg(distinct o_totalprice)
from cp.`tpch/orders.parquet`;
Query failed: Query failed: Unexpected exception during fragment
initialization: Node [rel#6320:Subset#3.LOGICAL.ANY([]).[]] could not be
implemented; planner state:
{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: Jinfeng Ni
> Fix For: Future
>
>
> 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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