sdf-jkl opened a new issue, #10646:
URL: https://github.com/apache/arrow-rs/issues/10646

   ### Is your feature request related to a problem or challenge?\n\nThe ALP 
encoder samples input values to select candidate exponent and factor pairs. We 
should verify that this heuristic produces compression reasonably close to 
evaluating every valid pair.\n\nPathological inputs where sampling selects 
significantly worse parameters should become deterministic regression 
cases.\n\nThis depends on #9372 and should be worked on after that PR is merged.


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