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https://issues.apache.org/jira/browse/AVRO-2689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17025037#comment-17025037
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Hudson commented on AVRO-2689:
------------------------------

SUCCESS: Integrated in Jenkins build AvroJava #811 (See 
[https://builds.apache.org/job/AvroJava/811/])
AVRO-2689:  add reader-schema to DataFileReadTool (#785) (ryan: 
[https://github.com/apache/avro/commit/afbda0798a4fe662bd5379cf535da79800c4e840])
* (edit) 
lang/java/tools/src/test/java/org/apache/avro/tool/TestDataFileTools.java
* (edit) 
lang/java/tools/src/main/java/org/apache/avro/tool/DataFileReadTool.java


> Avro-tools should have a way to test schema evolution.
> ------------------------------------------------------
>
>                 Key: AVRO-2689
>                 URL: https://issues.apache.org/jira/browse/AVRO-2689
>             Project: Apache Avro
>          Issue Type: Improvement
>          Components: java
>            Reporter: Ryan Skraba
>            Assignee: Roger
>            Priority: Major
>             Fix For: 1.10.0, 1.9.2
>
>
> The avro-tools command line should have at least one way to test 
> reading/writing with an evolved schema.  This would be useful for testing 
> schema evolution and reproducing errors or bug reports from the command line.
> A good candidate would be to add a {{--reader-schema}} option to the 
> {{tojson}} tool (where the writer schema comes from the data file).
> Alternatively, the {{fragtojson}} already takes the writer schema and we 
> could add {{--reader-schema-file}}.



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