lidavidm commented on a change in pull request #10074:
URL: https://github.com/apache/arrow/pull/10074#discussion_r615814433
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File path: python/pyarrow/parquet.py
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@@ -1674,6 +1686,12 @@ def pieces(self):
keys and only a hive-style directory structure is supported. When
setting `use_legacy_dataset` to False, also within-file level filtering
and different partitioning schemes are supported.
+pre_buffer : bool, default True
+ Coalesce and issue file reads in parallel to improve performance on
Review comment:
Yes, you'd need to set both to False to get true single-threading. I
added a short note about the use of threads to the docstring.
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