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https://issues.apache.org/jira/browse/AVRO-1006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13216630#comment-13216630
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graham sanderson commented on AVRO-1006:
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Note, more succinctly, given that I and other people in this issue have been 
discussing or inferring schema repositories, I think maybe it makes sense in 
general or at least as a separate issue to deal with a digest of the schema in 
its entirety, even if that results in a number of hash values mapping to 
equivalent schemas. Generally I think the use cases don't involve insane 
quantities of schemas in the first place (although I won't say that for 
certain, because the ability to define an anonymous schema on the fly for 
certain applications is rather appealing)
                
> Fingerprints for Avro Schemas
> -----------------------------
>
>                 Key: AVRO-1006
>                 URL: https://issues.apache.org/jira/browse/AVRO-1006
>             Project: Avro
>          Issue Type: New Feature
>          Components: java
>            Reporter: Raymie Stata
>            Assignee: Raymie Stata
>              Labels: features
>         Attachments: AVRO-1006-prelim.patch, AVRO-1006.patch, 
> AVRO-1006.patch, schema-fingerprinting.html, schema-fingerprinting.html, 
> schema-fingerprinting.html
>
>
> Add function that returns a standardized, 64-bit fingerprint for schemas.  
> Fingerprints are designed such that the chances of collisions is very, very 
> low.

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