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https://issues.apache.org/jira/browse/ARROW-14056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou resolved ARROW-14056.
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Resolution: Fixed
Issue resolved by pull request 11201
[https://github.com/apache/arrow/pull/11201]
> [C++][Doc] Mention ArrayData
> ----------------------------
>
> Key: ARROW-14056
> URL: https://issues.apache.org/jira/browse/ARROW-14056
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, Documentation
> Reporter: Antoine Pitrou
> Assignee: Antoine Pitrou
> Priority: Major
> Labels: pull-request-available
> Fix For: 6.0.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> See user question at
> https://lists.apache.org/thread.html/r6930101262ae26400bdcd78fccdf1a62ced1da8ba4b5cb4b028c392a%40%3Cuser.arrow.apache.org%3E
> {quote}I've gone through the documentation but I'm still unclear about the
> usage of buffers with respect to arrays.
> "A Buffer encapsulates a pointer and data size .... Buffers are untyped: they
> simply denote a physical memory area"
> "The central type in Arrow is the class arrow::Array. An array represents a
> known-length sequence of values all having the same type. Internally, those
> values are represented by one or several buffers ...."
> The Array section then goes on to explain how to build Arrays with the
> ArrayBuilder base class, and concrete subclasses. There doesn't appear to be
> any need to allocate buffer space first. There is also a BufferBuilder class.
> But since there does not appear to be a way associate a created buffer with
> an array, I don't understand when explicit buffer creation would be used?
> {quote}
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