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Posted to issues@flink.apache.org by "Chesnay Schepler (JIRA)" <ji...@apache.org> on 2016/03/03 17:25:18 UTC

[jira] [Updated] (FLINK-3507) PruneEmptyRules does not prune empty node as expected.

     [ https://issues.apache.org/jira/browse/FLINK-3507?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chesnay Schepler updated FLINK-3507:
------------------------------------
    Component/s: Table API

> 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
>
> {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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