[jira] [Commented] (SPARK-25390) Data source V2 API refactoring

["Rafael (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-25390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17289577#comment-17289577 ] 

Rafael commented on SPARK-25390:
--------------------------------

Sorry for late response, 
I was able to migrate my project on Spark 3.0.0
Here some hints what I did: https://gist.github.com/rafaelkyrdan/2bea8385aadd71be5bf67cddeec59581



> Data source V2 API refactoring
> ------------------------------
>
>                 Key: SPARK-25390
>                 URL: https://issues.apache.org/jira/browse/SPARK-25390
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Wenchen Fan
>            Assignee: Wenchen Fan
>            Priority: Major
>             Fix For: 3.0.0
>
>
> Currently it's not very clear how we should abstract data source v2 API. The abstraction should be unified between batch and streaming, or similar but have a well-defined difference between batch and streaming. And the abstraction should also include catalog/table.
> An example of the abstraction:
> {code}
> batch: catalog -> table -> scan
> streaming: catalog -> table -> stream -> scan
> {code}
> We should refactor the data source v2 API according to the abstraction



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