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https://issues.apache.org/jira/browse/ATLAS-1859?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sarath Subramanian resolved ATLAS-1859.
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    Resolution: Duplicate

> Add validation checking around relationshipDefs
> -----------------------------------------------
>
>                 Key: ATLAS-1859
>                 URL: https://issues.apache.org/jira/browse/ATLAS-1859
>             Project: Atlas
>          Issue Type: Sub-task
>            Reporter: David Radley
>            Assignee: Sarath Subramanian
>
> When a relationshipDef creation request is attempted, Atlas needs to check:
> - does the endpoint name in the relationship already exist in another active  
> relationshipdef that applies to that type
> -  does the endpoint name in the relationship already exist in another 
> attributedef that applies to that type
> The above needs to account for any attributeDefs and relationshipdefs that 
> apply due to type inheritance. 
> There is also the case that for supplied models like Hive, there may need to 
> be some mechanism to allow the old forms of composition relationships - that 
> Gremlin queries might relay on. The old forms of relationship instances are 
> implemented by 2 edges - the new form is one edge.  
>  



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