Done: https://issues.apache.org/jira/browse/CALCITE-3488 
<https://issues.apache.org/jira/browse/CALCITE-3488> 
let me know if you need any more info.

thank you

—Z

> On Nov 8, 2019, at 2:17 PM, Julian Hyde <jh...@apache.org> wrote:
> 
> As I said, I think you should log a bug.
> 
> On Fri, Nov 8, 2019 at 10:23 AM Haisheng Yuan <h.y...@alibaba-inc.com> wrote:
>> 
>> I am afraid this query can't be easily decorrelated.
>> 
>> - Haisheng
>> 
>> ------------------------------------------------------------------
>> 发件人:Zoltan Farkas<zolyfar...@yahoo.com.INVALID>
>> 日 期:2019年11月08日 22:46:53
>> 收件人:<dev@calcite.apache.org>
>> 主 题:Re: Question about Interpreter and Corelations
>> 
>> Thanks Julian,
>> 
>> Any idea how could I de-corelate the query?
>> RelDecorrelator.decorrelateQuery does not seem to alter the plan.
>> 
>> Will log a jira for the interpreter issue.
>> 
>> thank you
>> 
>> —Z
>> 
>> 
>> 
>>> On Nov 7, 2019, at 5:08 PM, Julian Hyde <jhyde.apa...@gmail.com> wrote:
>>> 
>>> I don’t recall what the interpreter is currently capable of, but you should 
>>> log a bug.
>>> 
>>> I wonder whether if you could get the query to work in the interpreter if 
>>> you decorrelated the query first.
>>> 
>>> Julian
>>> 
>>>> On Nov 7, 2019, at 11:16, Zoltan Farkas <zolyfar...@yahoo.com.invalid> 
>>>> wrote:
>>>> 
>>>> for a test query with the following plan:
>>>> 
>>>> LogicalProject(name=[$1], friends=[$4])
>>>> LogicalCorrelate(correlation=[$cor0], joinType=[inner], 
>>>> requiredColumns=[{0}])
>>>>  LogicalTableScan(table=[[characters]])
>>>>  Collect(field=[EXPR$0])
>>>>    LogicalProject(name=[$2])
>>>>      LogicalJoin(condition=[=($0, $1)], joinType=[inner])
>>>>        LogicalProject(characterId2=[$1])
>>>>          LogicalFilter(condition=[=($0, $cor0.characterId)])
>>>>           LogicalTableScan(table=[[friendships]])
>>>>        LogicalProject(characterId=[$0], name=[$1])
>>>>          LogicalTableScan(table=[[characters]])
>>>> 
>>>> I get :
>>>> 
>>>> java.lang.nsupportedOperationException
>>>>  at 
>>>> o.a.c.i.JaninoRexCompiler.lambda$compile$0(JaninoRexCompiler.java:94)[calcite-core-1.21.0.jar:1.21.0]
>>>>  at o.a.c.a.e.RexToLixTranslator.translate0(RexToLixTranslator.java:714)[^]
>>>>  at ^.translate(^:199)[^]
>>>>  at ^.translate0(^:684)[^]
>>>>  at ^.translate(^:199)[^]
>>>>  at ^.translate(^:194)[^]
>>>>  ...
>>>> 
>>>> when trying to use the Interpreter.
>>>> 
>>>> Is this a current limitation?
>>>> 
>>>> the query is :
>>>> 
>>>> select name,
>>>>        ARRAY(select c2.name from friendships f, characters c2
>>>>                           where f.characterId1 = c.characterId and 
>>>> f.characterId2 = c2.characterId) as friends
>>>> from characters c
>>>> 
>>>> let me know
>>>> 
>>>> thank you
>>>> 
>>>> —Z

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