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Posted to issues@arrow.apache.org by GitBox <gi...@apache.org> on 2022/09/20 08:45:03 UTC

[GitHub] [arrow-julia] bkamins opened a new issue, #337: Support DataAPI.jl metadata API

bkamins opened a new issue, #337:
URL: https://github.com/apache/arrow-julia/issues/337

   Hi @quinnj - could you please add to the release plan of Arrow.jl support for https://github.com/JuliaData/DataAPI.jl/pull/48 for the created Arrow tables.
   Only read methods need to be implemented for Arrow tables:
   * `DataAPI.metadata`
   * `DataAPI.metadatakeys`
   * `DataAPI.colmetadata`
   * `DataAPI.colmetadatakeys`
   


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[GitHub] [arrow-julia] bkamins commented on issue #337: Support DataAPI.jl metadata API

Posted by "bkamins (via GitHub)" <gi...@apache.org>.

bkamins commented on issue #337:
URL: https://github.com/apache/arrow-julia/issues/337#issuecomment-1663814121

   @quinnj - we should get back to it as the issue got forgotten (at least by me).
   In particular we should also add an automatic writing of metadata from objects that support metadata (instead of using `metadata` and `colmetadata` keywords in writer).
   
   Do you have any comments on this (or I should just propose a PR)?


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[GitHub] [arrow-julia] bkamins commented on issue #337: Support DataAPI.jl metadata API

Posted by "bkamins (via GitHub)" <gi...@apache.org>.

bkamins commented on issue #337:
URL: https://github.com/apache/arrow-julia/issues/337#issuecomment-1676406891

   In https://github.com/apache/arrow-julia/pull/481 I have implemented it for `Arrow.Table`.
   
   My follow-up questions are:
   * I was not sure how `Arrow.Stream` should be handled for metadata reading.
   * I was not sure for `Arrow.write` and `Arrow.Writer` and `Arrow.append` how to handle writing metadata. In particular, if one writes to an already existing Arrow file what should be allowed (i.e. if adding/updating metadata should be supported).


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[GitHub] [arrow-julia] quinnj commented on issue #337: Support DataAPI.jl metadata API

Posted by "quinnj (via GitHub)" <gi...@apache.org>.

quinnj commented on issue #337:
URL: https://github.com/apache/arrow-julia/issues/337#issuecomment-1664040686

   Ah yes, just make a PR; I think it should be pretty straightforward.


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