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Posted to issues@arrow.apache.org by "Ben Kietzman (Jira)" <ji...@apache.org> on 2019/09/26 14:24:00 UTC

[jira] [Created] (ARROW-6711) [C++] Consolidate Filter and Expression classes

Ben Kietzman created ARROW-6711:
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             Summary: [C++] Consolidate Filter and Expression classes
                 Key: ARROW-6711
                 URL: https://issues.apache.org/jira/browse/ARROW-6711
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Ben Kietzman
            Assignee: Ben Kietzman
             Fix For: 1.0.0


There is unnecessary boilerplate required when using the Filter/Expression classes. Filter is no longer necessary; it (and FilterVector) can be replaced with Expression. Expression is sufficiently general that it can be subclassed to provide any custom functionality which would have been added through a GenericFilter (add some tests for this).

Additionally rows within RecordBatches yielded from a scan are not currently filtered using Expression::Evaluate(). (Add tests ensuring both row filtering and pruning obey Kleene logic)



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