[
https://issues.apache.org/jira/browse/CALCITE-7000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mihai Budiu resolved CALCITE-7000.
----------------------------------
Fix Version/s: 1.40.0
Resolution: Fixed
Fixed in
[https://github.com/apache/calcite/commit/fcbbea2676d485c370255325cdfcb8a93694f06e]
Thank you for the fix [~jensen]
Thank you for the review [~caicancai]
> Extend IntersectToSemiJoinRule to support n-way inputs
> ------------------------------------------------------
>
> Key: CALCITE-7000
> URL: https://issues.apache.org/jira/browse/CALCITE-7000
> Project: Calcite
> Issue Type: Improvement
> Reporter: Zhen Chen
> Assignee: Zhen Chen
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.40.0
>
>
> SQL:
> {code:java}
> select ename from emp where deptno = 10
> intersect
> select ename from emp where deptno = 20
> intersect
> select ename from emp where deptno = 30 {code}
> Plan before:
> {code:java}
> LogicalIntersect(all=[false])
> LogicalProject(ENAME=[$1])
> LogicalFilter(condition=[=($7, 10)])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> LogicalProject(ENAME=[$1])
> LogicalFilter(condition=[=($7, 20)])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> LogicalProject(ENAME=[$1])
> LogicalFilter(condition=[=($7, 30)])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]]) {code}
> Plan after:
> {code:java}
> LogicalAggregate(group=[{0}])
> LogicalJoin(condition=[IS NOT DISTINCT FROM($0, $1)], joinType=[semi])
> LogicalJoin(condition=[IS NOT DISTINCT FROM($0, $1)], joinType=[semi])
> LogicalProject(ENAME=[$1])
> LogicalFilter(condition=[=($7, 10)])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> LogicalProject(ENAME=[$1])
> LogicalFilter(condition=[=($7, 20)])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]])
> LogicalProject(ENAME=[$1])
> LogicalFilter(condition=[=($7, 30)])
> LogicalTableScan(table=[[CATALOG, SALES, EMP]]) {code}
> The number of inputs needs to be greater than 1.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
