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https://issues.apache.org/jira/browse/ARROW-13681?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou resolved ARROW-13681.
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Resolution: Fixed
Issue resolved by pull request 10985
[https://github.com/apache/arrow/pull/10985]
> [C++] list_parent_indices only computes for first chunk
> -------------------------------------------------------
>
> Key: ARROW-13681
> URL: https://issues.apache.org/jira/browse/ARROW-13681
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Tor Eivind McKenzie-Syvertsen
> Assignee: Antoine Pitrou
> Priority: Major
> Labels: pull-request-available
> Fix For: 5.0.1, 6.0.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Pyarrow version: 5.0.0.
> Python version: 3.7.9
> I came across this issue due to very unexpected behaviour from the "explode"
> function obtained here:
> https://issues.apache.org/jira/browse/ARROW-12099
> indices = pc.list_parent_indices(table[col_name])
> if table[column] in this example contains several chunks, the indices will
> look perfectly fine for that chunk, but erratic and unexpected results for
> second chunk.
> No warning or info was given either
> A workaround that solved the problem for me is:
> {code:java}
> indices = pc.list_parent_indices(table.combine_chunks()[col_name])
> {code}
> The behaviour then changes dramatically.
> I'm assuming this isnt expected and should be fixed?
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