deamontg opened a new issue #9160:
URL: https://github.com/apache/arrow/issues/9160
I'm trying to read a parquet file using pyarrow read_table(), and I would
like to filter columns using None. I've tried something like the following:
```
import pyarrow as pa
import pyarrow.parquet as pq
table = pa.Table.from_arrays([[None, None, 'a', 'b', 'a', 'c']],
names=['column'])
pq.write_table(table, 'data.parquet')
table = pq.read_table('data.parquet', filters=[[('column', '=', None)]])
```
This example does not work, as the read-in table contains no records. How
can I properly filter a column for None values when reading a table?
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