[jira] [Updated] (ATLAS-528) support drop table, view

["Suma Shivaprasad (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ATLAS-528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Suma Shivaprasad updated ATLAS-528:
-----------------------------------
    Attachment: ATLAS-528.patch

> support drop table, view
> ------------------------
>
>                 Key: ATLAS-528
>                 URL: https://issues.apache.org/jira/browse/ATLAS-528
>             Project: Atlas
>          Issue Type: Sub-task
>            Reporter: Suma Shivaprasad
>             Fix For: 0.7-incubating
>
>         Attachments: ATLAS-528.patch
>
>
> Drop table and view requires soft deletes. The reason is whenever a table is dropped , it also may have an associated lineage which consists of a hive_process which N input tables and an output table. If the table is dropped, the lineage edge is also dropped resulting in incorrect lineage history. 
> With soft deletes, the expected behaviour is to changes the table status to "deleted" and when the table is recreated through a create table statement, then create another vertex/entity for that table with the new state. Also,  the lineage for this newly recreated table should be a new hive_process and should not reuse the existing entity/vertex even though the hive statement for that process is the same.



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