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https://issues.apache.org/jira/browse/ARROW-10930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joris Van den Bossche resolved ARROW-10930.
-------------------------------------------
Resolution: Fixed
Issue resolved by pull request 8979
[https://github.com/apache/arrow/pull/8979]
> [Python] LargeListType doesn't have a value_field
> -------------------------------------------------
>
> Key: ARROW-10930
> URL: https://issues.apache.org/jira/browse/ARROW-10930
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 2.0.0
> Reporter: Jim Pivarski
> Assignee: Joris Van den Bossche
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.0.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> This one is easy: it looks like the LargeListType is just missing this field.
> Here it is for a 32-bit list (the reason I want this is to get at the
> "nullable" field, although the "metadata" would be nice, too):
> {code:java}
> >>> import pyarrow as pa
> >>> small_array = pa.ListArray.from_arrays(pa.array([0, 3, 3, 5]),
> >>> pa.array([1.1, 2.2, 3.3, 4.4, 5.5]))
> >>> small_array.type.value_field
> pyarrow.Field<item: double>
> >>> small_array.type.value_field.nullable
> True{code}
> Now with a large list:
> {code:java}
> >>> large_array = pa.LargeListArray.from_arrays(pa.array([0, 3, 3, 5]),
> >>> pa.array([1.1, 2.2, 3.3, 4.4, 5.5]))
> >>> large_array.type.value_field
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> AttributeError: 'pyarrow.lib.LargeListType' object has no attribute
> 'value_field'{code}
> Verifying version:
> {code:java}
> >>> pa.__version__
> '2.0.0'{code}
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