[jira] [Resolved] (ARROW-17770) [C++][Gandiva] Fix const correctness of Gandiva projector Evaluate

["Antoine Pitrou (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-17770?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Pitrou resolved ARROW-17770.
------------------------------------
    Resolution: Fixed

Issue resolved by pull request 14165
[https://github.com/apache/arrow/pull/14165]

> [C++][Gandiva] Fix const correctness of Gandiva projector Evaluate
> ------------------------------------------------------------------
>
>                 Key: ARROW-17770
>                 URL: https://issues.apache.org/jira/browse/ARROW-17770
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++ - Gandiva
>    Affects Versions: 9.0.0
>            Reporter: Jin Shang
>            Assignee: Jin Shang
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 10.0.0
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> I was trying to figure out the thread-safeness of Gandiva projector evaluation, i.e., whether I can use a single Projector to evaluate multiple inputs concurrently. I assumed it isn't safe because the Evaluate function is not marked const. However, as far as I understand, the Evaluate function merely executes a compiled function on the input, which doesn't modify a project's internal states and should be const.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)