[GitHub] [arrow] westonpace opened a new issue, #34059: [C++] Create a fetch node based on a batch index property

["westonpace (via GitHub)" <gi...@apache.org>]

westonpace opened a new issue, #34059:
URL: https://github.com/apache/arrow/issues/34059

   ### Describe the enhancement requested
   
   This node will eventually be usable mid-plan allowing us to get rid of the concept of a TopKSink and also to add Substrait consumer support for fetch.
   
   This feature introduces the idea of an "ExecBatch::index" which is described more fully in https://docs.google.com/document/d/1MfVE9td9D4n5y-PTn66kk4-9xG7feXs1zSFf-qxQgPs/edit
   
   This feature is part of a larger set of features and this node will not be very useful on its own until some of those features are added (currently, all nodes except table_source will either fail to set the index or will reset it back to -1 and the fetch node will fail).  See #32991 for the larger roadmap.
   
   ### Component(s)
   
   C++


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[GitHub] [arrow] westonpace closed issue #34059: [C++] Create a fetch node based on a batch index property

["westonpace (via GitHub)" <gi...@apache.org>]

westonpace closed issue #34059: [C++] Create a fetch node based on a batch index property
URL: https://github.com/apache/arrow/issues/34059


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