[FLINK-12401] Support incremental emit under AccRetract mode for non-window streaming FlatAggregate on Table API

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.9.0
• Component/s: Table SQL / API
• Labels: pull-request-available
• Assignee: Hequn Cheng
• Reporter: Hequn Cheng
• Created: 05/May/19 01:30
• Updated: 12/Jun/19 09:49
• Resolved: 12/Jun/19 09:48

Description

As described in Flip-29, there are two output modes for non-window streaming flatAggregate. One is emitting with full values, the other is emitting with incremental values. FLINK-10977 supports the former one, this jira is going to support the latter one.

Issue Links

• links to: GitHub Pull Request #8550