[jira] [Commented] (AVRO-1394) Better error information when new record field has no default

["Doug Cutting (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AVRO-1394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13814386#comment-13814386 ] 

Doug Cutting commented on AVRO-1394:
------------------------------------

Thanks for the patch!  A unit test would be good to have.  This should not be too hard to create using the generic data representation.

> Better error information when new record field has no default
> -------------------------------------------------------------
>
>                 Key: AVRO-1394
>                 URL: https://issues.apache.org/jira/browse/AVRO-1394
>             Project: Avro
>          Issue Type: Improvement
>            Reporter: David Carr
>            Priority: Minor
>         Attachments: AVRO-1394.patch
>
>
> Currently, if you add a field to a schema without a default, and attempt to read a record with the new schema that was written with the old (pre-field-creation) schema, you get an error like this:
> org.apache.avro.AvroTypeException: Found mypackage.MyRecordType, expecting mypackage.MyRecordType
> This message is accurate, but doesn't help the user recognize the real problem: there's a required field that isn't present in the written data.  Please enhance the error message to make it more informative.



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