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Posted to jira@arrow.apache.org by "David Li (Jira)" <ji...@apache.org> on 2021/05/05 18:52:00 UTC

[jira] [Updated] (ARROW-12659) [C++][Compute] Support SimplifyWithGuarantee(is_null(foo), is_valid(foo))

     [ https://issues.apache.org/jira/browse/ARROW-12659?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Li updated ARROW-12659:
-----------------------------
    Summary: [C++][Compute] Support SimplifyWithGuarantee(is_null(foo), is_valid(foo))  (was: [C++][Compute] Support SimplifyWithGuarantee(is_null(foo), invert(is_null(foo))))

> [C++][Compute] Support SimplifyWithGuarantee(is_null(foo), is_valid(foo))
> -------------------------------------------------------------------------
>
>                 Key: ARROW-12659
>                 URL: https://issues.apache.org/jira/browse/ARROW-12659
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: David Li
>            Priority: Major
>              Labels: dataset, datasets, expression, expressions
>
> Simplifying a predicate using is_null with a guarantee using invert(is_null()) doesn't lead to any simplification.
> Once supported, tests should be added for Datasets to exercise row group filtering (and to generate the necessary clauses from statistics).



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