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From "Yan Cui (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AVRO-1836) avro schema compatibility checking does not work for records.
Date Wed, 27 Apr 2016 18:19:12 GMT
Yan Cui created AVRO-1836:
-----------------------------

             Summary: avro schema compatibility checking does not work for records.
                 Key: AVRO-1836
                 URL: https://issues.apache.org/jira/browse/AVRO-1836
             Project: Avro
          Issue Type: Bug
    Affects Versions: 1.8.0
            Reporter: Yan Cui
            Priority: Blocker


Hi Guys, 

We found a problem when calling avro's compatibility checking. 
Specifically, we used the function checkReaderWriterCompatibility, 
it works with no problem when we provides simple schema, like oldschema={"type":"int"} schema={"type":"long"},
but when we use complicated schema, like 
oldschema={"type":"record","name":"twitter","fields":[{"name":"username","type":"string"}]}

schema={"type":"record","name":"twitter","fields":[{"name":"username","type":"string"}]}

it reports that record name(twitter in this case) cannot be redefined. 
When one rename the second schema, it told me the two schema are not compatible. Actually,
for the completed case, oldschema and schema are exactly the same, the output is expected
to be compatible.

Do you guys have any ideas about this?

Thanks, Yan



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