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https://issues.apache.org/jira/browse/ARROW-14999?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17578528#comment-17578528
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Will Jones commented on ARROW-14999:
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Do you expect to be able to roundtrip that from Parquet? It seems like the
conclusion of discussion in ARROW-11497 was that we should transition in the
long term towards always using "element", but maybe we would still be able to
roundtrip by casting back based on the Arrow schema saved in the metadata?
> [C++] List types with different field names are not equal
> ---------------------------------------------------------
>
> Key: ARROW-14999
> URL: https://issues.apache.org/jira/browse/ARROW-14999
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Affects Versions: 6.0.0
> Reporter: Will Jones
> Assignee: Will Jones
> Priority: Major
> Labels: pull-request-available
> Fix For: 10.0.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When comparing map types, the names of the fields are ignored. This was
> introduced in ARROW-7173.
> However for list types, they are not ignored. For example,
> {code:python}
> In [6]: l1 = pa.list_(pa.field("val", pa.int64()))
> In [7]: l2 = pa.list_(pa.int64())
> In [8]: l1
> Out[8]: ListType(list<val: int64>)
> In [9]: l2
> Out[9]: ListType(list<item: int64>)
> In [10]: l1 == l2
> Out[10]: False
> {code}
> Should we make list type comparison ignore field names too?
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