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  1. Apache Arrow
  2. ARROW-1734

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

    Details

    • Type: New Feature
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.8.0
    • Component/s: C++, Python
    • Labels:
      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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              • Assignee:
                wesmckinn Wes McKinney
                Reporter:
                xhochy Uwe L. Korn
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                • Created:
                  Updated:
                  Resolved: