TheNeuralBit commented on a change in pull request #11699:
URL: https://github.com/apache/beam/pull/11699#discussion_r424788208
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File path: sdks/python/apache_beam/io/parquetio.py
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@@ -567,5 +567,6 @@ def _flush_buffer(self):
size = 0
for x in arrays:
for b in x.buffers():
- size = size + b.size
+ if b is not None:
+ size = size + b.size
Review comment:
Thanks for tracking this down!
I wonder what changed in 0.17 to reveal this. Maybe the parquet writer
(which we use to generate test data) wasn't eliding the null buffer before?
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