[jira] [Updated] (CRUNCH-312) Correctly determine the right DatumReader/Writer to use for Avro derived types

["Josh Wills (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CRUNCH-312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh Wills updated CRUNCH-312:
------------------------------

    Attachment: CRUNCH-312.patch

Patch for this, along with an integration test that demonstrates the issue w/the StringWrapper reflection type.

> Correctly determine the right DatumReader/Writer to use for Avro derived types
> ------------------------------------------------------------------------------
>
>                 Key: CRUNCH-312
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-312
>             Project: Crunch
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.9.0
>            Reporter: Josh Wills
>            Assignee: Josh Wills
>         Attachments: CRUNCH-312.patch
>
>
> Derived AvroTypes are only linked to their base AvroTypes by their schema, and so any information about how the base type needs to be read (e.g., using reflect/specific/generic datumreader/writer) is lost when the derived type is created. We need to provide a link between the record type of the base AvroType and its derived type so that derived types can be read properly.



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