[jira] [Updated] (CALCITE-5675) Infer predicates for anti-join

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-5675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated CALCITE-5675:
------------------------------------
    Labels: pull-request-available  (was: )

> Infer predicates for anti-join
> ------------------------------
>
>                 Key: CALCITE-5675
>                 URL: https://issues.apache.org/jira/browse/CALCITE-5675
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>            Reporter: Stamatis Zampetakis
>            Assignee: Stamatis Zampetakis
>            Priority: Major
>              Labels: pull-request-available
>
> Enhance {{RelMdPredicates}} to be able to infer predicates for anti-joins. 
> Consider the following plans with an anti join between EMP and DEPT tables.
> +PulledUpPredicates+
> {noformat}
> LogicalJoin(condition=[=($7, $8)], joinType=[anti])
>   LogicalFilter(condition=[=($1, 'Victor')])
>     LogicalTableScan(table=[[scott, EMP]])
>   LogicalFilter(condition=[=($1, 'CSD')])
>     LogicalTableScan(table=[[scott, DEPT]])
> {noformat}
> We can infer that the {{>($1, 'Victor')}} predicate holds on the result of the join.
> +RightInferredPredicates+
> {noformat}
> LogicalJoin(condition=[=($7, $8)], joinType=[anti])
>   LogicalFilter(condition=[>($7, 10)])
>     LogicalTableScan(table=[[scott, EMP]])
>   LogicalTableScan(table=[[scott, DEPT]])
> {noformat}
> We can infer that the {{>($0, 10)}} predicate holds on the right relation (DEPT).



--
This message was sent by Atlassian Jira
(v8.20.10#820010)