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https://issues.apache.org/jira/browse/DRILL-8209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17533295#comment-17533295
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ASF GitHub Bot commented on DRILL-8209:
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vvysotskyi opened a new pull request, #2533:
URL: https://github.com/apache/drill/pull/2533
# [DRILL-8209](https://issues.apache.org/jira/browse/DRILL-8209): Introduce
rule for converting join with distinct input to semi-join
## Description
Newer Calcite changed the order of applying rules. AggregateRemoveRule is
applied before SemiJoinRule, so SemiJoinRule cannot be applied later, since
aggregate is pruned from planning.
Adding rule that converts join to semi-join if the right side has distinct
columns.
Fixed cost and row count computation for semi-join.
## Documentation
NA
## Testing
Unit tests pass
> Introduce rule for converting join with distinct input to semi-join
> -------------------------------------------------------------------
>
> Key: DRILL-8209
> URL: https://issues.apache.org/jira/browse/DRILL-8209
> Project: Apache Drill
> Issue Type: Sub-task
> Reporter: Vova Vysotskyi
> Assignee: Vova Vysotskyi
> Priority: Major
>
> Newer Calcite changed the order of applying rules. AggregateRemoveRule is
> applied before SemiJoinRule, so SemiJoinRule cannot be applied later, since
> aggregate is pruned from planning.
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