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From "Nigel Jones (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ATLAS-520) Temporal / Versioning support for types, traits, entites ....
Date Thu, 25 Feb 2016 14:59:18 GMT

    [ https://issues.apache.org/jira/browse/ATLAS-520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15167283#comment-15167283
] 

Nigel Jones commented on ATLAS-520:
-----------------------------------

I just noticed ATLAS-493 ( https://issues.apache.org/jira/browse/ATLAS-493 ) is open to track
versioning of entities.

These two are related, though not quite the same.

> Temporal / Versioning support for types, traits, entites ....
> -------------------------------------------------------------
>
>                 Key: ATLAS-520
>                 URL: https://issues.apache.org/jira/browse/ATLAS-520
>             Project: Atlas
>          Issue Type: Wish
>    Affects Versions: trunk
>            Reporter: Nigel Jones
>
> With Atlas storing metadata & lineage data , from a governance perspective we would
like to ask questons such as
> - what different data sources were used to produce this report last year compared to
this year?
>  - how was this salary column in the employee table classified on 6 Apr 2015?
> These queries are needed to support audit, and to aid in process improvement + root cause
analysis
> To do so we need temporal support in atlas. A query should be able to indicate the point
in time that it applies to. This means keeping track of times, versions within atlas. Potentially
this means not just the nodes in the graph, but the edges too, however this can mean an ever
increasing graph which can get out of control.
> opening up this JIRA to enable an evaluation/ discussion of what we might be able to
do



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