Doug Cutting created AVRO-1259:
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Summary: improve Trevni encoding of sparse fields
Key: AVRO-1259
URL: https://issues.apache.org/jira/browse/AVRO-1259
Project: Avro
Issue Type: Improvement
Components: trevni
Reporter: Doug Cutting
If in most records a field is null, Trevni writes a null byte (zero length) for
that record in that column. This might be optimized by instead using a
run-length encoding for lengths. The length is signed, so negative lengths
might be used to indicate the number of zero-lengths before the next non-zero
value. This could thus be back-compatible.
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