jorisvandenbossche commented on a change in pull request #7348:
URL: https://github.com/apache/arrow/pull/7348#discussion_r435169769
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File path: docs/source/python/parquet.rst
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@@ -244,6 +277,18 @@ an exception will be raised. This can be suppressed by
passing
pq.write_table(table, where, coerce_timestamps='ms',
allow_truncated_timestamps=True)
+Timestamps with nanoseconds can be stored without casting when using the
+more recent Parquet format version 2.0:
Review comment:
@wesm now that `version="2.0"` and `data_page_version="2.0"` are two
separate options, I think it is OK to actually properly document that you can
use version 2.0 to store nanoseconds? (with of course the proper warning that
this can hurt compatibility with other parquet readers, but it shouldn't
produce invalid files anymore?)
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