You are viewing a plain text version of this content. The canonical link for it is here.

Posted to jira@arrow.apache.org by "Neville Dipale (Jira)" <ji...@apache.org> on 2020/12/29 07:00:00 UTC

[jira] [Created] (ARROW-11060) [Rust] Logical equality for list arrays

Neville Dipale created ARROW-11060:
--------------------------------------

             Summary: [Rust] Logical equality for list arrays
                 Key: ARROW-11060
                 URL: https://issues.apache.org/jira/browse/ARROW-11060
             Project: Apache Arrow
          Issue Type: Improvement
    Affects Versions: 2.0.0
            Reporter: Neville Dipale


Apply logical equality to lists. This requires computing the merged nulls of a list and its child based on list offsets.

For example, a list having 3 slots, and 5 values (0, 1, 3, 5) needs to be expanded to 5 null masks. If the list is validity is [true, false, true], and the values are [t, f, t, f, t] we would get:

[t, f, f, t, t] AND [t, f, t, f, t] = [t, f, f, f, t]



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