Vibhatha Lakmal Abeykoon created ARROW-17196:
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Summary: [C++] Optimize Fetch Node to avoid collecting all records
for non-sort setting
Key: ARROW-17196
URL: https://issues.apache.org/jira/browse/ARROW-17196
Project: Apache Arrow
Issue Type: Sub-task
Reporter: Vibhatha Lakmal Abeykoon
The current/initial implementation of Fetch node collects all the records and
then do a fetch. Without doing it while watching the input stream, only collect
the required amount of records with an offset. Also it is important to evaluate
if the order can be retained.
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