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https://issues.apache.org/jira/browse/ARROW-6691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17032035#comment-17032035
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Andy Grove commented on ARROW-6691:
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[~sd2k] You might be right, but given that we now have a flight server example
using tokio, it seems ideal to use tokio all the way through to query execution
to have a complete async implementation? I agree that this is perhaps not an
ideal issue to try to take on for a new contributor though!
> [Rust] [DataFusion] Use tokio and Futures instead of spawning threads
> ---------------------------------------------------------------------
>
> Key: ARROW-6691
> URL: https://issues.apache.org/jira/browse/ARROW-6691
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: Rust, Rust - DataFusion
> Reporter: Andy Grove
> Priority: Major
> Fix For: 1.0.0
>
> Attachments: image-2019-12-07-17-54-57-862.png
>
>
> The current implementation of the physical query plan uses "thread::spawn"
> which is expensive. We should switch to using Futures, async!/await!, and
> tokio so that we are launching tasks in a thread pool instead and writing
> idiomatic Rust code with futures combinators to chain actions together.
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