Weston Pace created ARROW-17757:
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Summary: [C++] Support type promotion in basic evolution strategy
Key: ARROW-17757
URL: https://issues.apache.org/jira/browse/ARROW-17757
Project: Apache Arrow
Issue Type: Sub-task
Components: C++
Reporter: Weston Pace
Most of the pieces are in place for this. If a fragment has int32 and the
dataset schema is int64 for example then the basic evolution strategy should be
able to safely cast.
We might even consider supporting unsafe casts like int64 -> int32 if we can
detect overflow and raise an error.
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