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https://issues.apache.org/jira/browse/AVRO-2075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nandor Kollar reassigned AVRO-2075:
-----------------------------------
Assignee: Anders Sundelin
> Allow SchemaCompatibility to report possibly lossy conversions
> --------------------------------------------------------------
>
> Key: AVRO-2075
> URL: https://issues.apache.org/jira/browse/AVRO-2075
> Project: Avro
> Issue Type: Improvement
> Affects Versions: 1.7.7, 1.8.2
> Environment: Java
> Reporter: Anders Sundelin
> Assignee: Anders Sundelin
> Priority: Minor
> Attachments:
> 0001-AVRO-2075-Add-option-to-report-possible-data-loss-in.patch
>
>
> It is stated in the Avro spec that int and long values are promotable to
> floats and doubles.
> However, numeric promotions to floats are lossy (losing precision), as is
> long promotion to double.
> It is suggested that the SchemaCompatibility class is updated to be able to
> flag conversions that have the possibility to be lossy as errors. The
> attached patch does just that, by adding a new boolean flag (allowDataLoss),
> preserving backwards compatibility by defaulting this flag to true.
> Testcases illustrating the problem has been added to the unit test class
> TestReadingWritingDataInEvolvedSchemas
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