houqp commented on pull request #68:
URL: https://github.com/apache/arrow-datafusion/pull/68#issuecomment-917882040


   @yjshen thanks for offering the help. Really appreciate it! I have pushed my 
WIP commit to https://github.com/houqp/arrow-datafusion/tree/arrow2-merge. This 
branch merged with a relatively new commit 
7932cb9373192ce2754b39c1f82f22c8a56b7266. I am still working to get it to 
build. My branch also requires a patched version of arrow2 at 
https://github.com/houqp/arrow2/tree/qp_ord (pending PR 
https://github.com/jorgecarleitao/arrow2/pull/398). I currently have arrow2 
patched to point to my local check out in Cargo.toml.
   
   My current goal is to get `cargo test --lib` to compile and run.
   
   I think perhaps the best way for us to collaborate on this is to work on the 
[arrow2-merge](https://github.com/houqp/arrow-datafusion/tree/arrow2-merge) 
together. To reduce potential merge conflicts, I can start from the bottom of 
the build error output and you can start from the beginning. I have granted you 
write access to my datafusion fork, so you can push directly to the 
arrow2-merge branch if you want. Or you can send PRs to my branch if you want 
to get things reviewed. Once it's building again, I can squash the commit and 
push to this PR. I will try to push any work in progress commit to the 
arrow2-merge branch at the end of my day if you will have access to the latest 
fixes from my end when you wake up.
   
   To set the right expectation, we might not be able to merge this PR when we 
have it all caught up to the latest master and get all tests to pass, etc. 
@jorgecarleitao still need to restart the process to donate arrow2 to ASF first 
before we can merge it to master. If you only need access to async parquet IO 
in the short term, @alamb 's comment in 
https://github.com/apache/arrow-rs/issues/111#issuecomment-917611415 would be a 
much faster route.


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