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https://issues.apache.org/jira/browse/ARROW-6282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou closed ARROW-6282.
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    Resolution: Abandoned

I will close this, as this should certainly be discussed on the Arrow 
development mailing-list first.

> [Format] Support lossy compression
> ----------------------------------
>
>                 Key: ARROW-6282
>                 URL: https://issues.apache.org/jira/browse/ARROW-6282
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: Format
>            Reporter: Dominik Moritz
>            Priority: Major
>             Fix For: 2.0.0
>
>
> Arrow dataframes with large columns of integers or floats can be compressed 
> using gzip or brotli. However, in some cases it will be okay to compress the 
> data lossy to achieve even higher compression ratios. The main use case for 
> this is visualization where small inaccuracies matter less. 



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