David Li created ARROW-12487:
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Summary: [C++][Dataset] ScanBatches() hangs if there's an error
during scanning
Key: ARROW-12487
URL: https://issues.apache.org/jira/browse/ARROW-12487
Project: Apache Arrow
Issue Type: Bug
Components: C++
Affects Versions: 4.0.0
Reporter: David Li
Assignee: David Li
Errors during scanning aren't properly reported, causing the iterator to hang
forever.
This affects ScanBatches() and anything built on top of it (Python to_batches,
TakeRows, etc)
Verified on the 4.0.0 RC
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