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https://issues.apache.org/jira/browse/FLINK-3507?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Fabian Hueske resolved FLINK-3507.
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Resolution: Fixed
Fix Version/s: 1.1.0
Fixed after updating to Calcite 1.7.
> PruneEmptyRules does not prune empty node as expected.
> -------------------------------------------------------
>
> Key: FLINK-3507
> URL: https://issues.apache.org/jira/browse/FLINK-3507
> Project: Flink
> Issue Type: Improvement
> Components: Table API
> Reporter: Chengxiang Li
> Priority: Minor
> Fix For: 1.1.0
>
>
> {noformat}
> val t = CollectionDataSets.get3TupleDataSet(env).as('a, 'b, 'c)
> .where(Literal(false))
> .groupBy('b)
> .select('a.sum)
> {noformat}
> With PruneEmptyRules instances enabled, we expect the empty Aggregate and
> Project should be removed, while it's not removed after logical optimization.
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