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https://issues.apache.org/jira/browse/ARROW-9480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17256417#comment-17256417
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Ben Sully commented on ARROW-9480:
----------------------------------
(note that adding `Send + Sync` to the `DataFrame` and `TableProvider` traits
fixes this).
> [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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