Add finish to AsyncArrowWriter::finish
#6543
Merged
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Which issue does this PR close?
Closes #6530.
Rationale for this change
Mirror other writers and add a
finish
method that is aclose
that doesn't consume self. This allows state like bytes written to be queried after writing is complete.What changes are included in this PR?
Add
finish
as well as a test provided by @alamb in #6530Are there any user-facing changes?