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https://issues.apache.org/jira/browse/ARROW-18405?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kouhei Sutou reassigned ARROW-18405:
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Assignee: Kouhei Sutou
> [Ruby] Raw table converter rebuilds chunked arrays
> --------------------------------------------------
>
> Key: ARROW-18405
> URL: https://issues.apache.org/jira/browse/ARROW-18405
> Project: Apache Arrow
> Issue Type: Bug
> Components: Ruby
> Affects Versions: 10.0.0
> Reporter: Sten Larsson
> Assignee: Kouhei Sutou
> Priority: Minor
>
> Consider the following Ruby script:
> {code:ruby}
> require 'arrow'
> data = Arrow::ChunkedArray.new([Arrow::Int64Array.new([1])])
> table = Arrow::Table.new('column' => data)
> puts table['column'].data_type
> {code}
> This prints "int64" with red-arrow 9.0.0 and "uint8" in 10.0.0.
> From my understanding it is due to this commit:
> [https://github.com/apache/arrow/commit/913d9c0a9a1a4398ed5f56d713d586770b4f702c#diff-f7f19bbc3945ea30ba06d851705f2d58f7666507bb101c4e151014ca398bd635R42]
> The old version would not call ArrayBuilder.build on a ChunkedArray, but the
> new version does. This is a problem for us, because we need the column to
> stay int64.
> A workaround is to specify a schema and list of arrays instead to bypass the
> raw table converter:
> {code:ruby}
> table = Arrow::Table.new([{name: 'column', type: 'int64'}], [data])
> {code}
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