[jira] [Created] (ARROW-8235) [C++][Compute] Filter out nulls by default

["Ben Kietzman (Jira)" <ji...@apache.org>]

Ben Kietzman created ARROW-8235:
-----------------------------------

             Summary: [C++][Compute] Filter out nulls by default
                 Key: ARROW-8235
                 URL: https://issues.apache.org/jira/browse/ARROW-8235
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++ - Compute
    Affects Versions: 0.16.0
            Reporter: Ben Kietzman
            Assignee: Ben Kietzman
             Fix For: 0.17.0


The filter kernel currently emits null when a slot in the selection mask is null. For compatibility with Kleene logic systems like SQL, this behavior should be configurable. Provide an option enumeration:

{code}
struct FilterOptions {
  enum NullSelectionBehavior {
    /// null slots in the selection mask will drop the filtered value
    DROP,
    /// null slots in the selection mask will keep the filtered value
    KEEP,
    /// null slots in the selection mask will replace the filtered value with null
    EMIT_NULL,
  } null_selection_behavior;
};
{code}



--
This message was sent by Atlassian Jira
(v8.3.4#803005)