[jira] [Closed] (ARROW-9480) [Rust] [DataFusion] All DataFusion execution plan traits should require Send + Sync

["Andy Grove (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-9480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Grove closed ARROW-9480.
-----------------------------
    Resolution: Won't Fix

Based on recent experience testing query execution with async, I no longer feel that this makes sense. Async is good for network io but not for file io. It is better to have a dedicated thread per partition when executing queries. 

Also, we can't use async with Parquet currently without launching a dedicated thread per partition which pretty much defeats the point of using async in the first place.

> [Rust] [DataFusion] All DataFusion execution plan traits should require Send + Sync
> -----------------------------------------------------------------------------------
>
>                 Key: ARROW-9480
>                 URL: https://issues.apache.org/jira/browse/ARROW-9480
>             Project: Apache Arrow
>          Issue Type: Sub-task
>          Components: Rust, Rust - DataFusion
>            Reporter: Andy Grove
>            Assignee: Andy Grove
>            Priority: Major
>
> All DataFusion execution plan traits should require Send + Sync, to prepare for async support.



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