[FLINK-34049] Refactor classes related to window TVF aggregation to prepare for non-aligned windows

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Implemented
• Affects Version/s: 1.19.0
• Component/s: Table SQL / Runtime
• Labels: pull-request-available
• Assignee: xuyang
• Reporter: xuyang
• Created: 10/Jan/24 08:24
• Updated: 22/Jan/24 02:17
• Resolved: 22/Jan/24 02:17

Description

Refactor classes related to window TVF aggregation such as AbstractWindowAggProcessor to prepare for the implementation of non-aligned windows like session window

Issue Links

• blocks: FLINK-34048 Support session window agg in table runtime instead of using legacy group window agg op
• links to: GitHub Pull Request #24068