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https://issues.apache.org/jira/browse/CALCITE-5388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17635724#comment-17635724
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Benchao Li commented on CALCITE-5388:
-------------------------------------
The plan seems correct:
{code:java}
EnumerableHashJoin(condition=[=($1, $3)], joinType=[inner])
EnumerableSort(sort0=[$1], dir0=[ASC])
EnumerableCalc(expr#0..1=[{inputs}], EXPR$0=[$t1], ID=[$t0])
EnumerableWindow(window#0=[window(order by [0] rows between UNBOUNDED
PRECEDING and CURRENT ROW aggs [ROW_NUMBER()])])
EnumerableValues(tuples=[[{ 1 }, { 2 }]])
EnumerableSort(sort0=[$1], dir0=[ASC])
EnumerableCalc(expr#0..1=[{inputs}], EXPR$0=[$t1], ID=[$t0])
EnumerableWindow(window#0=[window(order by [0] rows between UNBOUNDED
PRECEDING and CURRENT ROW aggs [ROW_NUMBER()])])
EnumerableValues(tuples=[[{ 1 }, { 2 }]])
{code}
Need more investigation into the execution.
> No result when using ROW_NUMBER in two common table expressions
> ---------------------------------------------------------------
>
> Key: CALCITE-5388
> URL: https://issues.apache.org/jira/browse/CALCITE-5388
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.32.0
> Reporter: Magnus Mogren
> Priority: Major
>
> This SQL produces no result.
>
> {code:java}
> with
> CTE1(rownr1, val1) as ( select ROW_NUMBER() OVER(ORDER BY id ASC), id
> from (values (1), (2)) as Vals1(id) ),
> CTE2(rownr2, val2) as ( select ROW_NUMBER() OVER(ORDER BY id ASC), id
> from (values (1), (2)) as Vals2(id) )
> select
> CTE1.rownr1,
> CTE1.val1,
> CTE2.rownr2,
> CTE2.val2
> from
> CTE1,
> CTE2
> where
> CTE1.val1 = CTE2.val2{code}
>
> However, if you remove CTE.rownr2 from the selected columns it produces the 2
> rows as expected:
> |ROWNR1|VAL1|VAL2|
> |1|1|1|
> |2|2|2|
>
> Same type of problem occurs of you try to compare the two rownr columns. No
> result for this:
> {code:java}
> with
> CTE1(rownr1, val1) as ( select ROW_NUMBER() OVER(ORDER BY id ASC), id
> from (values (1), (2)) as Vals1(id) ),
> CTE2(rownr2, val2) as ( select ROW_NUMBER() OVER(ORDER BY id ASC), id
> from (values (1), (2)) as Vals2(id) )
> select
> CTE1.val1,
> CTE2.val2
> from
> CTE1,
> CTE2
> where
> CTE1.rownr1 = CTE2.rownr2{code}
>
> Does calcite get confused over the fact that two ROW_NUMBER functions are
> used among the common table expressions?
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