Re: [I] Unable to filter a factor column in a Dataset using `%in%` [arrow]

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

assignUser commented on issue #43440:
URL: https://github.com/apache/arrow/issues/43440#issuecomment-2253698541

   You can solve this by casting the dictionary encoded column to string: `mutate(x = cast(x, string()))` and back to dictionary to get a factor out when collecting: 
   ```r
   d3 <- arrow::open_dataset(temp_file, format = "arrow") |> mutate(x = cast(x, string())) |>
             dplyr::filter(x %in% "a") |> mutate(x = cast(x, dictionary())) |> collect()`
   ```
   I am of two minds, either we are missing a binding or this is your sign that `%in%` is not the right tool for the job (at least for single values) :grinning: 


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