Uwe Korn created ARROW-8282:
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Summary: [C++/Python][Dataset] Support schema evolution for
integer columns
Key: ARROW-8282
URL: https://issues.apache.org/jira/browse/ARROW-8282
Project: Apache Arrow
Issue Type: Improvement
Components: C++ - Dataset
Reporter: Uwe Korn
When reading in a dataset where the schema specifies that column X is of type
{{int64}} but the partition actually contains the data stored in that columns
as {{int32}}, an upcast should be done.
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