Update quarterly_roadmap.md

[yahoNanJing]

Which issue does this PR close?

Closes #.

Rationale for this change

What changes are included in this PR?

Are there any user-facing changes?

[codecov-commenter]

Codecov Report

Merging #3493 (79be257) into master (84bee89) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3493   +/-   ##
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  Coverage   85.75%   85.75%           
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  Files         299      299           
  Lines       55287    55287           
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  Hits        47411    47411           
  Misses       7876     7876           

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[yjshen]

We have implemented file-based shuffle with memory management in Blaze. I could have that PRed if it aligns with the goal of Ballista. https://github.com/blaze-init/blaze/blob/master/native-engine/datafusion-ext/src/shuffle_writer_exec.rs

[yahoNanJing]

Thanks very much @yjshen. Could you help raise a PR for that? 😄

[andygrove]

I think it might be better to move the Ballista roadmap to the Ballista project now

[yahoNanJing]

@andygrove, agree.

[andygrove]

I created a PR https://github.com/apache/arrow-ballista/pull/318 to add the Ballista roadmap to the Ballista repo

[andygrove]

Closing this since the ballista roadmap is now maintained in ballista