alamb commented on a change in pull request #707:
URL: https://github.com/apache/arrow-rs/pull/707#discussion_r694768683
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File path: parquet/src/util/io.rs
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@@ -36,6 +36,9 @@ pub trait TryClone: Sized {
pub trait ParquetReader: Read + Seek + Length + TryClone {}
impl<T: Read + Seek + Length + TryClone> ParquetReader for T {}
+pub trait ThreadSafeParquetReader: ParquetReader + Send + Sync + 'static {}
Review comment:
An alternative approach, that we could use in DataFusion, would be to
implement something like `ThreadSafeFileSource`
I think the core change that is needed to work with remote s3-like object
storages is to make / allow for an `async` api in the parquet reader.
e.g. https://github.com/apache/arrow-rs/issues/111
Here is one potential way of doing it from @jorgecarleitao 's arrow2 crate:
https://github.com/jorgecarleitao/arrow2/pull/260
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