[
https://issues.apache.org/jira/browse/ARROW-9431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17346939#comment-17346939
]
Joris Van den Bossche commented on ARROW-9431:
----------------------------------------------
I think one difference in your example is that I expect the {{arr2}} to be of
the same length as {{to_replace}}
bq. Can we assume that 'to_replace' is a non-null Int64Array?
That might be the easiest for now. Or otherwise we can say nulls in
{{to_replace}} give nulls in the output. The question is then how to interpret
{{arr2}}, though (should it be of the same length as {{to_replace}}, or as the
non-null values of {{to_replace}} ?)
bq. And should we enforce 'to_replace' being sorted (IMO this would be more
efficient)?
Hmm, not sure. Also for {{Take}} we generally don't require sortedness of the
indices, I think?
bq. What is the arity of this kernel? Unary or binary?
Ternary?
> [C++/Python] Kernel for SetItem(IntegerArray, values)
> -----------------------------------------------------
>
> Key: ARROW-9431
> URL: https://issues.apache.org/jira/browse/ARROW-9431
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++, Python
> Affects Versions: 2.0.0
> Reporter: Uwe Korn
> Priority: Major
>
> We should have a kernel that allows overriding the values of an array using
> an integer array as the indexer and a scalar or array of equal length as the
> values.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
