[FLINK-21327] Support window TVF in batch mode

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.15.0
• Component/s: Table SQL / Planner
• Labels: pull-request-available
• Release Note: Windowing table-valued functions can now also be used in batch execution mode and no longer only in streaming execution mode.
• Assignee: Jing Zhang
• Reporter: Jark Wu
• Created: 09/Feb/21 07:05
• Updated: 29/Nov/21 08:51
• Resolved: 29/Nov/21 08:27

Description

As a batch and streaming unified engine, we should also support to run window TVF in batch mode. Then users can use one query with streaming mode to produce data in real-time and use the same query with batch mode to backfill data for a specific day.

The implementation for batch should be straightforward and simple. We can just introduce a physical and exec node for window TVF.

Issue Links

• links to: GitHub Pull Request #17666