[ 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)