Smallhi edited a comment on issue #1052: KYLIN-4326 KYLIN support ZSTD codec done! URL: https://github.com/apache/kylin/pull/1052#issuecomment-607005489 @shaofengshi Thanks for your reply! I plan to rewrite this feature and solve these problems: 1. use third-party lib licenced under Apache License v2. 2. If we know the original size of bytes array, when we use zstd or lz4 to decompress inputstream, we need't use try catch cluase to extend Bytebuffer size, which I think isn't efficient. so after we serialize bitmap to BytesWritable , and write the long cardinality and int byte lenght at the head the byte array user the BytesWritable
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