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https://issues.apache.org/jira/browse/ARROW-1652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brian Hulette updated ARROW-1652:
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Description: CompositeVector should have a {{batch(i)}} function that
returns a BatchVector (was: The {{Vector.get}} function just accepts an index,
and looks up the appropriate record batch on every call. This can lead to a lot
of additional lookups when iterating by index. It would be nice if
{{Vector.get}} accepted an optional batch hint, similar to
[{{Vector.range}}|https://github.com/apache/arrow/blob/master/js/src/vector/typed.ts#L51]
Additionally, if {{Table}} had some knowledge of the batches in its Vectors, it
could use this batch hint to improve performance when iterating over rows.)
> [JS] Separate Vector into BatchVector and CompositeVector
> ---------------------------------------------------------
>
> Key: ARROW-1652
> URL: https://issues.apache.org/jira/browse/ARROW-1652
> Project: Apache Arrow
> Issue Type: Improvement
> Components: JavaScript
> Reporter: Brian Hulette
> Assignee: Paul Taylor
> Labels: Performance
>
> CompositeVector should have a {{batch(i)}} function that returns a BatchVector
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