Weston Pace created ARROW-18386:
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Summary: [C++] Add support for filename, file index, and batch
index columns to exec plan based scanner
Key: ARROW-18386
URL: https://issues.apache.org/jira/browse/ARROW-18386
Project: Apache Arrow
Issue Type: Sub-task
Components: C++
Reporter: Weston Pace
Assignee: Weston Pace
The old scanner currently appends these three fields to all outgoing batches.
In retrospect, this caused some confusion, so I'd like to handle it slightly
differently, where the user is able to request these fields, but they are not
automatically appended.
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