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Xinli Shang updated PARQUET-1872: --------------------------------- Description: When ZSTD becomes more popular, there is a need to translate existing data to ZSTD compressed which can achieve a higher compression ratio. It would be useful if we can have a tool to convert a Parquet file directly by just decompressing/compressing each page without decoding/encoding or assembling the record because it is much faster. The initial result shows it is ~5 times faster. was: When ZSTD becomes more popular, there is a need to translate existing data ZSTD compressed which can achieve a higher compression ratio. It would be useful if we can have a tool to convert a Parquet file directly by just decompressing/compressing each page without decoding/encoding or assembling the record because it is much faster. The initial result shows it is ~5 times faster. > Add TransCompression command > ----------------------------- > > Key: PARQUET-1872 > URL: https://issues.apache.org/jira/browse/PARQUET-1872 > Project: Parquet > Issue Type: Improvement > Components: parquet-mr > Affects Versions: 1.12.0 > Reporter: Xinli Shang > Assignee: Xinli Shang > Priority: Major > > When ZSTD becomes more popular, there is a need to translate existing data to > ZSTD compressed which can achieve a higher compression ratio. It would be > useful if we can have a tool to convert a Parquet file directly by just > decompressing/compressing each page without decoding/encoding or assembling > the record because it is much faster. The initial result shows it is ~5 times > faster. -- This message was sent by Atlassian Jira (v8.3.4#803005)