[ https://issues.apache.org/jira/browse/FLINK-16844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Benchao Li closed FLINK-16844. ------------------------------ Resolution: Duplicate > Support retract message for StreamExecGroupWindowAggregate in blink planner > --------------------------------------------------------------------------- > > Key: FLINK-16844 > URL: https://issues.apache.org/jira/browse/FLINK-16844 > Project: Flink > Issue Type: Improvement > Components: Table SQL / Planner > Reporter: Benchao Li > Priority: Major > > Currently the `WindowOperator` in blink planner actually supports retract > messages, however in StreamExecGroupWindowAggregate, we throws exception if > input is retract. IMO, we can remove this check and let > `StreamExecGroupWindowAggregate` support retract messages. This will enhance > the ability of blink planner very much. >  > cc [~jark] -- This message was sent by Atlassian Jira (v8.3.4#803005)