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The Avro specification details a Single Object Encoding using a header to associate a schema ID with an Avro payload. The ID is defined as the CRC64 fingerprint in little-endian encoding. The pkg/crc64 module only provides big-endian CRC64, and the CRC64-AVRO fingerprint type is implemented as such. The specification does not detail endianness of the CRC64-AVRO fingerprint itself (only when embedded in an SOE header). To avoid breaking existing CRC64-AVRO fingerprints, add a new fingerprint type CRC64-AVRO-LE, identical to CRC64-AVRO except little-endian. Add an additional crc64.SumLittleEndian function to distrurb existing code as little as possible. Add tests and benchmarks for the Sum functions. Fixes hamba#489.
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See also #491 |
This was referenced Jan 20, 2025
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Closed, seems like everyone prefers #491. |
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The Avro specification details a Single Object Encoding using a header to associate a schema ID with an Avro payload. The ID is defined as the CRC64 fingerprint in little-endian encoding.
The pkg/crc64 module only provides big-endian CRC64, and the CRC64-AVRO fingerprint type is implemented as such. The specification does not detail endianness of the CRC64-AVRO fingerprint itself (only when embedded in an SOE header).
To avoid breaking existing CRC64-AVRO fingerprints, add a new fingerprint type CRC64-AVRO-LE, identical to CRC64-AVRO except little-endian.
Add an additional crc64.SumLittleEndian function to distrurb existing code as little as possible.
Add tests and benchmarks for the Sum functions.
Fixes #489.