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https://issues.apache.org/jira/browse/ARROW-11044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou closed ARROW-11044.
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Assignee: (was: Bruno LE HYARIC)
Resolution: Duplicate
This was fixed by adding the "if_else" function in ARROW-10640.
> [C++] Add "replace" kernel
> --------------------------
>
> Key: ARROW-11044
> URL: https://issues.apache.org/jira/browse/ARROW-11044
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Bruno LE HYARIC
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> Purpose a "replace" compute kernel which could fulfil -ARROW-10641 - [C++] A
> "replace" or "map" kernel to replace values in array based on mapping
> (@jorisvandenbossche)-
> [ARROW-9430](https://issues.apache.org/jira/browse/ARROW-9430) - [C++/Python]
> Kernel for SetItem(BooleanArray, values) (@xhochy). The implementation
> started on the basis of "fill_null" kernel. But it takes an additional
> BooleanArray parameter which is used as a mask to trigger value replacement.
> With following "null handling" logic:
> {noformat}
> Values Mask Replacement Output
> 1 v 1 false 1 r 1 v
> 1 v 1 true 1 r 1 r
> 1 v 0 null 1 r 1 v
> 1 v 1 false 0 null 1 v
> 1 v 1 true 0 null 1 v
> 1 v 0 null 0 null 1 v
> 0 null 1 false 1 r 0 null
> 0 null 1 true 1 r 1 r
> 0 null 0 null 1 r 0 null
> 0 null 1 false 0 null 0 null
> 0 null 1 true 0 null 0 null
> 0 null 0 null 0 null 0 null
> {noformat}
> (each column indicates the validity bit and the corresponding value. "v" for
> current value, "r" for replacement value).
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