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https://issues.apache.org/jira/browse/AVRO-1582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14246138#comment-14246138
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Sean Busbey commented on AVRO-1582:
-----------------------------------
{quote}
case, and also an optimization to omit at serialization time the fields that
are equal with the default value, and infer them at deserialization time from
the schema....
{quote}
How does this deal with the reader schema having a different default than the
writer schema? It seems like if you want "default of reader's schema" as a
serialized value it's less surprising to implement that as a special case in
the application layer.
> Json serialization of nullable fileds improvement.
> --------------------------------------------------
>
> Key: AVRO-1582
> URL: https://issues.apache.org/jira/browse/AVRO-1582
> Project: Avro
> Issue Type: Improvement
> Components: java
> Affects Versions: 1.8.0
> Reporter: Zoltan Farkas
> Priority: Minor
> Attachments: AVRO-1582-PATCH
>
>
> Currently serializing a nullable field of type union like:
> "type" : ["null","some type"]
> when serialized as JSON results in:
> "field":{"some type":"value"}
> when it could be:
> "field":"value"
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