Re: [I] What is the highest compression level in gzip? [arrow-rs]

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

ByteBaker commented on issue #6282:
URL: https://github.com/apache/arrow-rs/issues/6282#issuecomment-2367173293

   It seems flate2 documentation is wrong.
   
   ```rust
   /// Returns an integer representing the compression level, typically on a
   /// scale of 0-9
   pub fn level(&self) -> u32 {
       self.0
   }
   ```
   
   But internally, inside `DeflateBackend::make` they have `debug_assert!(level.level() <= 10);`. Using compression level up to 10 works fine but panics for bigger values.


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