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https://issues.apache.org/jira/browse/ARROW-8391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17080601#comment-17080601
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Radu Teodorescu commented on ARROW-8391:
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Fair point
I guess I was doing two things at once:
# Trying to understand the scope of the ticket - based on your comments it
sound like the preferred approach would be something along the lines of binary
searching the recordBatches from the file footer.
# Exploring the notion of adding broader support for efficiently identifying a
row range within the arrow API in general (as in ChunkedArray and beyond) -
this might fall out of the scope of this ticket but I am intrigued wrt the
current state of the conversation on the topic.
> [C++] Implement row range read API for IPC file (and Feather)
> -------------------------------------------------------------
>
> Key: ARROW-8391
> URL: https://issues.apache.org/jira/browse/ARROW-8391
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Wes McKinney
> Priority: Major
>
> The objective would be able to read a range of rows from the middle of a
> file. It's not as easy as it might sound since all the record batch metadata
> must be examined to determine the start and end point of the row range
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