Artem KOZHEVNIKOV created ARROW-6857:
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Summary: Segfault for dictionary_encode on empty chunked_array
(edge case)
Key: ARROW-6857
URL: https://issues.apache.org/jira/browse/ARROW-6857
Project: Apache Arrow
Issue Type: Bug
Components: Python
Affects Versions: 0.15.0
Reporter: Artem KOZHEVNIKOV
a reproducer is here :
{code:python}
import pyarrow as pa
aa = pa.chunked_array([pa.array(['a', 'b', 'c'])])
aa[:0].dictionary_encode()
# Segmentation fault: 11
{code}
For pyarrow=0.14, I could not reproduce.
I use a conda version : "pyarrow 0.15.0 py37hdca360a_0 conda-forge"
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