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https://issues.apache.org/jira/browse/CALCITE-4499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez resolved CALCITE-4499.
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Fix Version/s: 1.28.0
Resolution: Fixed
Fixed in
[de48e55|https://github.com/apache/calcite/commit/de48e55783a140e6927f88a445d9cbdf2e7623b5].
> FilterJoinRule misses opportunity to push filter to semijoin input
> ------------------------------------------------------------------
>
> Key: CALCITE-4499
> URL: https://issues.apache.org/jira/browse/CALCITE-4499
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.28.0
>
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> Consider the following plan:
> {code}
> LogicalProject(DNAME=[$1])
> LogicalJoin(condition=[AND(=($0, $10), =($8, 100))], joinType=[semi])
> LogicalTableScan(table=[[scott, DEPT]])
> LogicalTableScan(table=[[scott, EMP]])
> {code}
> The second conjunct only refers to columns from the right input, thus it
> could be pushed to the right input. However, {{FilterJoinRule}} misses this
> opportunity.
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