kou commented on code in PR #45550:
URL: https://github.com/apache/arrow/pull/45550#discussion_r1969553978
##########
python/pyarrow/tests/parquet/test_parquet_file.py:
##########
@@ -334,3 +334,18 @@ def test_parquet_file_with_filesystem(s3_example_fs,
use_uri):
assert f.read() == table
assert not f.closed
assert f.closed
+
+
+def test_read_statistics():
+ table = pa.table({"value": pa.array([-1, None, 3])})
+ buf = io.BytesIO()
+ _write_table(table, buf)
+ buf.seek(0)
+
+ statistics = pq.ParquetFile(buf).read().columns[0].chunks[0].statistics
+ assert statistics.null_count == 1
+ assert statistics.distinct_count is None
+ assert statistics.min == -1
+ assert statistics.is_min_exact
+ assert statistics.max == 3
+ assert statistics.is_max_exact
Review Comment:
It's a good idea. I've added it.
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