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