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https://issues.apache.org/jira/browse/SPARK-25390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan updated SPARK-25390:
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Description:
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
was:
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}
> 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: 2.5.0
> Reporter: Wenchen Fan
> Priority: Major
>
> 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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