pepijnve commented on code in PR #16398:
URL: https://github.com/apache/datafusion/pull/16398#discussion_r2152379108
##########
datafusion/datasource/src/source.rs:
##########
@@ -261,11 +261,7 @@ impl ExecutionPlan for DataSourceExec {
) -> Result<SendableRecordBatchStream> {
self.data_source
.open(partition, Arc::clone(&context))
- .map(|stream| wrap_yield_stream(stream, &context,
self.cooperative))
- }
-
- fn with_cooperative_yields(self: Arc<Self>) -> Option<Arc<dyn
ExecutionPlan>> {
- self.cooperative.then_some(self)
+ .map(|stream| make_cooperative(stream))
Review Comment:
We could avoid a virtual call here by pushing the cooperative wrapper down
to `FileScanConfig::open`. That does lose the benefit of `DataSourceExec` being
cooperative for any `DataSource`. Is it worth shaving off one virtual call per
record batch?
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