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

• Type: Improvement
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 1.11.0
• Component/s: Documentation, Table SQL / API
• Labels: pull-request-available
• Assignee: Jark Wu
• Reporter: Jark Wu
• Created: 20/Dec/19 06:21
• Updated: 27/Apr/21 18:05
• Resolved: 05/Jun/20 11:20

Description

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

Discussion thread: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/DISCUSS-Correct-the-terminology-of-quot-Time-windowed-Join-quot-to-quot-Interval-Join-quot-in-Table-L-td36202.html#a36208
Voting thread: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/VOTE-Rename-terminology-quot-Time-windowed-Join-quot-to-quot-Interval-Join-quot-in-Table-API-amp-SQL-td36370.html

Issue Links

• links to: GitHub Pull Request #12483