[
https://issues.apache.org/jira/browse/CALCITE-7008?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
ASF GitHub Bot updated CALCITE-7008:
------------------------------------
Labels: pull-request-available (was: )
> Extend MinusToAntiJoinRule to support n-way inputs
> --------------------------------------------------
>
> Key: CALCITE-7008
> URL: https://issues.apache.org/jira/browse/CALCITE-7008
> Project: Calcite
> Issue Type: Improvement
> Reporter: Zhen Chen
> Assignee: Zhen Chen
> Priority: Minor
> Labels: pull-request-available
>
> Similar to this jira: https://issues.apache.org/jira/browse/CALCITE-7000
> SQL:
> {code:java}
> select ename from emp where deptno = 10
> minus
> select ename from emp where deptno = 20
> minus
> select ename from emp where deptno = 30 {code}
> Plan before:
> {code:java}
> LogicalMinus(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=[anti])
> LogicalJoin(condition=[IS NOT DISTINCT FROM($0, $1)], joinType=[anti])
> 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)
