[jira] [Commented] (FLINK-15339) Correct the terminology of "Time-windowed Join" to "Interval Join" in Table API & SQL

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

    [ https://issues.apache.org/jira/browse/FLINK-15339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17026482#comment-17026482 ] 

Timo Walther commented on FLINK-15339:
--------------------------------------

Actually, the interval joins in DataStream API came after Table API but could not named like Table API because of legacy reasons. I don't have a strong opinion here. But we can do it for consistency.

> Correct the terminology of "Time-windowed Join" to "Interval Join" in Table API & SQL
> -------------------------------------------------------------------------------------
>
>                 Key: FLINK-15339
>                 URL: https://issues.apache.org/jira/browse/FLINK-15339
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Documentation
>            Reporter: Jark Wu
>            Priority: Major
>             Fix For: 1.10.0
>
>
> Currently, in the docuementation, we call the joins with time conditions as "Time-windowed Join". However, it is called "Interval Join" in DataStream. We should align the terminology in Flink project. 
> From my point of view, "Interval Join" is more suitable, because it joins a time interval range of right stream[1]. And "Windowed Join" should be joins data in the same window, this is also described in DataStream API. 
> For Table API & SQL, the "Time-windowed Join" is the "Interval Join" in DataStream. And we miss the new feature "Windowed Join" in Table API & SQL.
> I propose to correct the terminology in docs before 1.10 is release. 
> [1]: https://ci.apache.org/projects/flink/flink-docs-master/dev/stream/operators/joining.html#interval-join
> [2]: https://ci.apache.org/projects/flink/flink-docs-master/dev/stream/operators/joining.html#window-join



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