Hi, > From above observation, we find that it is better to disable LEB128 encoding > while zstd is used.
You can enable file size optimizations (automatically recommend better layouts for compression) when "orc.encoding.strategy"="COMPRESSION" There are a bunch of bitpacking loops that's controlled by that flag already. > https://github.com/facebook/zstd/issues/1325. If I understand that correctly, a DIRECT_V2 would also work fine for the numeric sequences in Zstd instead? Cheers, Gopal