cxzl25 commented on PR #1760: URL: https://github.com/apache/orc/pull/1760#issuecomment-1898569247
Thanks @dongjoon-hyun . The default compression levels of aircompressor used by ORC and zstd-jni used by parquet are both level 3. I verified in the online environment that zstd-jni level 3 is not worse than aircompressor level 3. https://github.com/airlift/aircompressor/blob/ca561c8214100b1e646a395c2683212419719dc8/src/main/java/io/airlift/compress/zstd/CompressionParameters.java#L26 https://github.com/apache/parquet-mr/blob/c82d5b471a558124b03e67759038661a046f5938/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/codec/ZstandardCodec.java#L52 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
