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https://issues.apache.org/jira/browse/ARROW-15589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weston Pace reassigned ARROW-15589:
-----------------------------------
Assignee: Ariana Villegas
> [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
> Assignee: Ariana Villegas
> Priority: Major
> Labels: substrait
>
> 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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