fix: Calling count on a pyarrow dataset results in an error
#843
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Michael-J-Ward
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Which issue does this PR close?
Closes #800.
Rationale for this change
This PR includes a test to demonstrate the issue, which was resolved with an upstream PR: apache/arrow-rs#6318.
I have now rebased the PR against latest on main, which includes that upstream PR and thus the tests pass.
What changes are included in this PR?
Are there any user-facing changes?
df.count()succeeds on arrow datasets.