cmsxbc created ARROW-9040:
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Summary: [Python][Parquet]"_ParquetDatasetV2" fail to read with
columns and use_pandas_metadata=True
Key: ARROW-9040
URL: https://issues.apache.org/jira/browse/ARROW-9040
Project: Apache Arrow
Issue Type: Bug
Components: Python
Affects Versions: 0.17.1
Reporter: cmsxbc
When call _ParquetDatasetV2.read(columns=['column'], use_pandas_metadata=True),
"TypeError: unhashable type 'dict'" will be raised from
{code:java}
index_columns = set(_get_pandas_index_columns(metadata))
{code}
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