[
https://issues.apache.org/jira/browse/AVRO-2918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17178413#comment-17178413
]
Micah Kornfield edited comment on AVRO-2918 at 8/16/20, 3:48 AM:
-----------------------------------------------------------------
[~jonirap] its not entirely clear to me what this is proposing, could you maybe
illustrate with some examples?
was (Author: [email protected]):
@Jonathan Rapoport its not entirely clear to me what this is proposing, could
you maybe illustrate with some examples?
> Schema polymorphism
> -------------------
>
> Key: AVRO-2918
> URL: https://issues.apache.org/jira/browse/AVRO-2918
> Project: Apache Avro
> Issue Type: New Feature
> Components: logical types, misc, spec
> Reporter: Jonathan Rapoport
> Priority: Major
> Labels: features
> Original Estimate: 96h
> Remaining Estimate: 96h
>
> Include the option to use named types as base types for a new schema. Allow
> for MRO generation. Field inheritance.
> The benefits of this approach include:
> * Defining a schema as validation for a certain wire, and so allowing the
> receiver to be certain of the structure of the data (this works today).
> However, defining an extension of this schema, or certain schemas which can
> be normalized to the original schema, but contain additional information,
> will not allow it to be sent over the same wire.
> * Backwards compatibility through inheritance - you never break the old
> schema, thus allowing a long integration period, with no need to recode all
> processes familiar with the schema. The new schema will simply inherit the
> old one, and only add information.
> * Allow for full data control through polymorphism, and the ability to
> replace structures within any supported language.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
