milenkovicm commented on issue #3941:
URL:
https://github.com/apache/arrow-datafusion/issues/3941#issuecomment-1290489703
One thing I cant really wrap my head around is use of `async` with
`try_grow`.
Issue I have is with use of `try_grow` within struct `impl Stream` e.g
`GroupedHashAggregateStreamV2` which actually handles `RecordBatch`
```rust
impl Stream for GroupedHashAggregateStreamV2 {
type Item = ArrowResult<RecordBatch>;
fn poll_next(
mut self: std::pin::Pin<&mut Self>,
cx: &mut Context<'_>,
) -> Poll<Option<Self::Item>> {
let this = &mut *self;
// await` is only allowed inside `async` functions and blocks only
allowed inside `async` functions and blocks
this.mem_manager.try_grow(200).await;
}
}
```
anybody has any better idea how to integrate it?
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