ozankabak commented on code in PR #15030:
URL: https://github.com/apache/datafusion/pull/15030#discussion_r1987518808
##########
datafusion/physical-plan/src/execution_plan.rs:
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@@ -260,13 +260,30 @@ pub trait ExecutionPlan: Debug + DisplayAs + Send + Sync {
/// used.
/// Thus, [`spawn`] is disallowed, and instead use [`SpawnedTask`].
///
+ /// To enable timely cancellation, the [`Stream`] that is returned must not
+ /// pin the CPU and must yield back to the tokio runtime regularly. This
can
Review Comment:
Touche. I only checked what was on `main` and not unmerged PRs. BTW the
verdict is still out on #14028 whether the approach within is the right
solution for the problem (it may well be, or not).
Anyway, I don't think there is a disagreement on how to proceed w.r.t. to
the documentation.
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