XiangpengHao commented on issue #6946:
URL: https://github.com/apache/arrow-rs/issues/6946#issuecomment-2575989488

   I believe we need something like `AsyncChunkReader` 
(https://github.com/apache/arrow-rs/blob/main/parquet/src/file/reader.rs#L63) 
which allows us to read the pages on demand in async, and thus avoiding 
buffering the entire row group in memory before creating the record batch 
stream.
   But that means we need to plague almost the entire crate to be async 
functions.


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