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feat: Support compress UnsafeRow and CompactRow #11497

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@jinchengchenghh jinchengchenghh commented Nov 11, 2024

Flush the buffers to IOBufOutputStream, use folly to compress, and record some stats, skip compression when compressedSize/uncompressedSize exceeds minCompressionRatio with default value 0.8.
Serialization format is:
| uncompressedSize | compressedSize | compressed | serializedData for Iterator[Row] |
Test the RowVector with all types and size is 500, the test output is as following:

row kind compression kind uncompressedSize compressedSize compression ratio
UnsafeRow zlib 519344 227749 44%
UnsafeRow snappy 307936 115012 37%
UnsafeRow zstd 689544 273433 40%
UnsafeRow lz4 622688 205956 33%
UnsafeRow gzip 759608 213922 28%
CompactRow zlib 263474 129241 49%
CompactRow snappy 388313 78297 20%
CompactRow zstd 224144 92744 41%
CompactRow lz4 110043 61615 56%
CompactRow gzip 224631 93989 42%

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@jinchengchenghh jinchengchenghh changed the title Support compress UnsafeRow and CompactRow feat: Support compress UnsafeRow and CompactRow Nov 15, 2024
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