[GitHub] [arrow] maartenbreddels commented on pull request #8271: ARROW-9991: [C++] split kernels for strings/binary

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maartenbreddels commented on pull request #8271:
URL: https://github.com/apache/arrow/pull/8271#issuecomment-704888455


   @pitrou @jorisvandenbossche I think this is ready for review, provided the points below are not an issue.
   
   Open questions
    * kernel name: string_split_pattern vs split_pattern. I can imagine that we also want to support binary_split_pattern, so should we have to separate kernel names for this, or keep it split_pattern and implement support for binary in the future?
    * API docs: I'm not sure the compute.rst docs I added should follow some standard, or if that table can be produce using some tool, I've done it by hand for now.
    * Should split_pattern be a binary kernel, where pattern is the second argument? As @jorisvandenbossche  suggested we could start by only implementing only the second argument being a scalar. I tried to implement this, but I had to change the testing framework/tools for this a lot. So I think the should be a separate issue, otherwise this PR will never end. OTOH, this will mean a breaking change.


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