[GitHub] [arrow-rs] alamb commented on pull request #4434: fix: Allow reading of arrow files with more than one million columns

["alamb (via GitHub)" <gi...@apache.org>]

alamb commented on PR #4434:
URL: https://github.com/apache/arrow-rs/pull/4434#issuecomment-1602767380

   Thanks @olwmc  -- I kicked off the CI tests for this PR. 
   
   I wonder if we have any testcase we can use / create? Maybe we can write a test that creates a file with 1M columns and then tries to read it?


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