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https://issues.apache.org/jira/browse/FLINK-19824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jark Wu reassigned FLINK-19824:
-------------------------------
Assignee: Jark Wu
> Refactor and merge SupportsComputedColumnPushDown and
> SupportsWatermarkPushDown interfaces
> ------------------------------------------------------------------------------------------
>
> Key: FLINK-19824
> URL: https://issues.apache.org/jira/browse/FLINK-19824
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: Jark Wu
> Assignee: Jark Wu
> Priority: Major
> Labels: pull-request-available
>
> As discussed in mailing list [1], the existing SupportsComputedColumnPushDown
> and SupportsWatermarkPushDown are confusing and hard to implement for
> connectors. The
> {{SupportsComputedColumnPushDown}} only used for watermark push down.
> Therefore,
> combining them into a single interface {{SupportsWatermarkPushDown}} would
> be better and also work. The proposed interface looks like this:
> {code:java}
> public interface SupportsWatermarkPushDown {
>
> void
> applyWatermark(org.apache.flink.table.sources.wmstrategies.WatermarkStrategy<RowData>
> watermarkStrategy);
>
> }
> {code}
> [1]:
> http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/Merge-SupportsComputedColumnPushDown-and-SupportsWatermarkPushDown-td44387.html
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