[jira] [Created] (CALCITE-7008) Extend MinusToAntiJoinRule to support n-way inputs

["Zhen Chen (Jira)" <ji...@apache.org>]

Zhen Chen created CALCITE-7008:
----------------------------------

             Summary: 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


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. 



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