[
https://issues.apache.org/jira/browse/ARROW-3511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16650280#comment-16650280
]
Wes McKinney commented on ARROW-3511:
-------------------------------------
Selection integer vectors and boolean vectors are complementary; they are
frequently used in pandas, and useful since you don't have to scan the boolean
vector in order to determine the size of a filtered array. Others can comment
further
> [Gandiva] support input selection vectors for both projector and filter
> -----------------------------------------------------------------------
>
> Key: ARROW-3511
> URL: https://issues.apache.org/jira/browse/ARROW-3511
> Project: Apache Arrow
> Issue Type: Task
> Components: Gandiva
> Reporter: Pindikura Ravindra
> Assignee: Praveen Krishna
> Priority: Major
>
> The Gandiva filter module returns a selection vector representing the indices
> of records (in the batch) that matched the filter. We can connect this to
> other modules, by passing along this selection vector as an input argument to
> the downstream projector/filter.
>
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
