Currently RelDecorrelator doesn't support a decorrelateRel(Collect), that's why decorrelate failed
Zoltan Farkas <zolyfar...@yahoo.com.invalid> 于2019年11月9日周六 上午5:46写道： > 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 > >
