thisisnic commented on PR #46431:
URL: https://github.com/apache/arrow/pull/46431#issuecomment-2906981308
I'm also wondering if instead of supporting this we should just stop the
segfault and then error appropriately and recommend folks do something like:
```
open_dataset(whatever) %>%
mutate(col = cast(col, int32()) %>%
write_dataset(newlocation)
open_dataset(newlocation) %>%
filter(col > 3) %>%
collect()
```
Otherwise we're getting into the territory of supporting compute functions
on extension types, which we don't actually do and if implemented should be
done lower down the stack anyway.
More discussion on computing on extension types here:
https://lists.apache.org/thread/2j61nrod7x0s5vjhc6q9tlj898drz7rn
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