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Posted to jira@arrow.apache.org by "Neal Richardson (Jira)" <ji...@apache.org> on 2021/09/13 19:27:00 UTC

[jira] [Created] (ARROW-13987) [C++] Support nested FieldRefs

Neal Richardson created ARROW-13987:
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             Summary: [C++] Support nested FieldRefs
                 Key: ARROW-13987
                 URL: https://issues.apache.org/jira/browse/ARROW-13987
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Neal Richardson
             Fix For: 7.0.0


While it seems technically possible to construct nested FieldRefs, it doesn't seem that you can use them in practice. And it would also be nice to be able to get a nested FieldRef on an Expression. One solution could be to not handle this within FieldRefs at all and just handle it in Expressions: have a function like {{Expression GetField(Expression, name)}}.



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