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From "Mark Grey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AVRO-1582) Json serialization of nullable fileds and fields with default values improvement.
Date Tue, 20 Jun 2017 18:32:00 GMT

    [ https://issues.apache.org/jira/browse/AVRO-1582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16056249#comment-16056249
] 

Mark Grey commented on AVRO-1582:
---------------------------------

[~busbey] I am more than willing to volunteer, but it may take me some time to get familiarized
with the internals.  Right now we're using [~zolyfarkas]'s forked encoder/decoder and I've
been digging into the development process on avro to help contribute.

> Json serialization of nullable fileds and fields with default values 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
>         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"
> Also fields that equal the the default value can be omitted from the serialized data.
This is possible because the reader will have the writer's schema and can infer the field
values. This reduces the size of the json messages.



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