GitHub user chitralverma added a comment to the discussion: (rust) How to use 
opendal to load data into DuckDB or Polars LazyFrame?

@Xuanwo @reswqa please see one of the comments from a collaborator on the issue 
above, might need your support as im not very familiar with the internals of 
opendal

> That is unfortunately not possible. Our internal API is based on memory maps, 
> this does allow non-eager reading. AsyncRead and Streams are very hard for us 
> to support efficiently, since many file formats rely on seeking across the 
> file or would require significant buffering anyway.

GitHub link: 
https://github.com/apache/opendal/discussions/5972#discussioncomment-12764885

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