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https://issues.apache.org/jira/browse/THRIFT-5340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17269589#comment-17269589
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Juan Cruz Viotti commented on THRIFT-5340:
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Hi [~jensg],
> A schema can evolve as needed and - following a few simple rules - still be
>held compatible with earlier versions of that schema.
Exactly. I was trying to find a list of such simple rules. But I couldn't find
them anywhere (maybe I didn't look in the right place?)
> Unfortunately you did not talk about what those experiments could be, but
>Thrifts transport/protocol stack is highly modular. So in fact the same
>service(s) can be offered by the same server at the same time in a lot of
>ways. In that regard, the compact protocol is just one way to do it, and there
>is nothing that makes it special in any way. Its just a means to an end, not
>different to any of the other protocols.
For example, I'm creating a schema that defines a list of a scalar type. Then,
I transform the schema that has a list of a structure where the scalar is the
first and only element. I then encode data with the old schema and attempt to
decode it with the new schema, and viceversa, to determine if the schema
transformation is forwards, backwards, or fully compatible.
> Document schema evolution features
> ----------------------------------
>
> Key: THRIFT-5340
> URL: https://issues.apache.org/jira/browse/THRIFT-5340
> Project: Thrift
> Issue Type: Improvement
> Components: Documentation
> Reporter: Juan Cruz Viotti
> Priority: Minor
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> I could not find a section in the documentation outlining the schema
> evolution/versioning features that Thrift provides.
> In case there is none, I volunteer to write the first draft, as I've been
> writing a paper involving Apache Thrift as part of my MSc at University of
> Oxford, and ran plenty of schema evolution experiments.
> Please let me know your thoughts and where would this section fit!
>
>
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