Weston Pace created ARROW-15589:
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Summary: [C++] Add support for sliced Substrait reads
Key: ARROW-15589
URL: https://issues.apache.org/jira/browse/ARROW-15589
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Weston Pace
The Substrait format allows for "sliced reads" which only read a part of the
file and would most likely be used if a read operation were distributed across
multiple files.
For each file a start byte and length is specified. For files that contain
indivisible "groups" (e.g. Parquet row groups) this is handled by picking some
heuristic. For example, read all row groups whose midpoint is contained in the
interval.
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