[GitHub] [arrow] felipecrv commented on issue #34382: [C++] Run-end encoding and decoding: Add support for more types

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

felipecrv commented on issue #34382:
URL: https://github.com/apache/arrow/issues/34382#issuecomment-1474033910

   To add more types we need more specializations of `ReadValueImpl` and `WriteValueImpl` similaryly to how `visit_data_inline.h` does. The current specialization only works on types that have a `::c_type`. There needs to be one for `Binary, String` and another for fixed-size byte-string types like `FixedSizeBinary, Decimal256`.
   
   If we can make equality of values a template parameter, `RunEndEncodingLoop` could also be re-used for these specializations.


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