[
https://issues.apache.org/jira/browse/FLINK-19612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17250797#comment-17250797
]
Suhan Mao edited comment on FLINK-19612 at 12/17/20, 4:18 AM:
--------------------------------------------------------------
[~jark] Hi, I'm interested in how we implement this.
Do you plan to set CUMULATE a new keyword in SQL syntax or some reserved enum
window name in planner?
In our company, we have a lot of customized window count/sum logic and window
fire/purge management. Sometimes it may be complicated that official window
function cannot satisfy our requirement in SQL. Then we have to write
DataStream API to handle this.
Is there a way that we can develop customized window table function as a new
type of UDF basing on this feature?
Is there a way we can implement it in a more generic way especially for SQL?
was (Author: maosuhan):
[~jark] Hi, I'm interested in how we implement this.
Do you plan to set CUMULATE a new keyword in SQL syntax or some reserved enum
window name in planner?
In our company, we have a lot of customized window count/sum logic and window
fire/purge management. Sometimes it may be complicated that official window
function cannot satisfy our requirement in SQL. Then we have to write
DataStream API to handle this.
Is there a way that we can develop customized window table function basing on
this feature?
Is there a way we can implement it in a more generic way especially for SQL?
> Support CUMULATE window table function in planner
> -------------------------------------------------
>
> Key: FLINK-19612
> URL: https://issues.apache.org/jira/browse/FLINK-19612
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: Jark Wu
> Assignee: Jark Wu
> Priority: Major
> Fix For: 1.13.0
>
>
> Introduce the CUMULATE customized window table function in planner. And
> support cumulative windows in window aggregate, etc.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
