jorisvandenbossche commented on a change in pull request #10060:
URL: https://github.com/apache/arrow/pull/10060#discussion_r623122752
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File path: python/pyarrow/_dataset.pyx
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@@ -2838,6 +2838,13 @@ cdef class Scanner(_Weakrefable):
result = self.scanner.Head(num_rows)
return pyarrow_wrap_table(GetResultValue(result))
+ def count_rows(self):
+ """Count rows matching the scanner filter."""
Review comment:
I was going to comment that adding a similar function to `Fragment`
might also be nice, but I assume the user can now just do
`fragment.scanner().count_rows()` instead of `fragment.count_rows()` ?
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