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https://issues.apache.org/jira/browse/AVRO-2072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16156991#comment-16156991
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Nandor Kollar commented on AVRO-2072:
-------------------------------------
Thanks [~epkanol], I uploaded AVRO-2072_2.patch with your additional test
cases, modified the failing ones in {{TestReadingWritingDataInEvolvedSchemas}}
which shouldn't fail after the fix in {{ResolvingGrammarGenerator}}, and
deleted the ignored case from {{TestSchemaCompatibility}}, since we should
support those promotions: changing the specification is not the best idea
according to [~cutting] and [~busbey], so we should allow this promotion, thus
this is a bug in the implementation (see discussion on Avro user's mailing
list). Anders, could you please help with a review?
> ResolvingGrammarGenerator doesn't implement schema resolution correctly for
> unions
> ----------------------------------------------------------------------------------
>
> Key: AVRO-2072
> URL: https://issues.apache.org/jira/browse/AVRO-2072
> Project: Avro
> Issue Type: Bug
> Reporter: Nandor Kollar
> Assignee: Nandor Kollar
> Attachments: 0001-AVRO-1931-Additional-test-cases.patch,
> AVRO-2072_2.patch, AVRO-2072.patch
>
>
> According to
> [specification|https://avro.apache.org/docs/current/spec.html#Schema+Resolution],
> int and long is promotable to float, but when using SchemaValidator, a union
> with a single int or long branch is not readable by an union with a float
> branch.
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