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  1. Apache Arrow
  2. ARROW-1734

C++/Python: Add cast function on Column-level

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Details

    • New Feature
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 0.8.0
    • C++, Python
    • None

    Description

      Add a Cast function on a column level that casts all underlying arrays.

      There are three possible options we could implement:

      • Make a special cast implementation that takes a ChunkedArray and returns a simple Array
      • Make a universal implementation that takes a ChunkedArray and applies a Kernel on each Array, returning a ChunkedArray with the same chunking
      • Make a universal implementation that takes a ChunkedArray and applies a Kernel on each Array, returning a plain Array with no chunking

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              wesm Wes McKinney
              uwe Uwe Korn
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                Updated:
                Resolved: