ARROW-9177: Add Hadoop-produced LZ4-compressed file with several frames #16
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It seems than when the decompressed size exceeds 128 kiB, Hadoop compresses the data in several concatenated "frames". Data in this file: ``` Version: 1.0 Created By: parquet-mr version 1.11.1 (build 765bd5cd7fdef2af1cecd0755000694b992bfadd) Total rows: 10000 Number of RowGroups: 1 Number of Real Columns: 1 Number of Columns: 1 Number of Selected Columns: 1 Column 0: a (BYTE_ARRAY/UTF8) --- Row Group: 0 --- --- Total Bytes: 400029 --- --- Rows: 10000 --- Column 0 Values: 10000, Null Values: 0, Distinct Values: 0 Max: ffffe6a0-e0c0-4e65-a9d4-f7f4c176aea2, Min: 00087de7-10df-4979-94cf-79279f9745ce Compression: LZ4_HADOOP, Encodings: BIT_PACKED PLAIN Uncompressed Size: 400029, Compressed Size: 358351 --- Values --- a | [ ... ] ```
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It seems than when the decompressed size exceeds 128 kiB, Hadoop compresses the data in several concatenated "frames".
Data in this file: