Maarten Breddels created ARROW-9456:
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Summary: [Python] Dataset segfault when not importing
pyarrow.parquet
Key: ARROW-9456
URL: https://issues.apache.org/jira/browse/ARROW-9456
Project: Apache Arrow
Issue Type: Bug
Components: Python
Reporter: Maarten Breddels
To reproduce:
# import pyarrow.parquet # if we skip this...
import pyarrow as pa
import pyarrow.dataset as ds
import glob
ds = pa.dataset.dataset('/data/taxi_parquet/data_0.parquet')
ds.to_table() # this will crash
$ python pyarrow/crash.py dev
terminate called after throwing an instance of 'parquet::ParquetException'
what(): The file only has 19 columns, requested metadata for column: 1049198736
[1] 1559395 abort (core dumped) python pyarrow/crash.py
When the import is there, it will work fine.
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