[
https://issues.apache.org/jira/browse/CALCITE-1583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
xiong duan resolved CALCITE-1583.
---------------------------------
Fix Version/s: 1.41.0
Resolution: Fixed
> Wrong results for query with correlated subqueries with aggregate subquery
> expression
> -------------------------------------------------------------------------------------
>
> Key: CALCITE-1583
> URL: https://issues.apache.org/jira/browse/CALCITE-1583
> Project: Calcite
> Issue Type: Bug
> Reporter: Vineet Garg
> Assignee: xiong duan
> Priority: Major
> Labels: pull-request-available, sub-query
> Fix For: 1.41.0
>
>
> Following query produces wrong result:
> {code} select * from depts where exists (select sum(empno) from emps where
> depts.deptno = emps.deptno and 1=2) {code}
> Expected Result:
> {noformat}
> deptno | name
> --------+-----------
> 10 | Sales
> 20 | Marketing
> 30 | Accounts
> (3 rows)
> {noformat}
> Actual results
> {noformat} zero rows {noformat}
> Calcite rewrites such queries into JOIN which ignores the fact that aggregate
> functions such as {{sum}} always produce one row, effectively making
> {{EXISTS}} predicate always true.
> Same is the case with {{Scalar}} and {{IN}} sub-queries.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
