Jonathan Rapoport created AVRO-2918:
---------------------------------------
Summary: 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
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)
