liwei li created FLINK-24247: -------------------------------- Summary: Uniformly limit the value of ABS(offset) in all window Key: FLINK-24247 URL: https://issues.apache.org/jira/browse/FLINK-24247 Project: Flink Issue Type: Improvement Components: API / DataStream Reporter: liwei li
when i test Window TVF offset([FLINK-23747|https://issues.apache.org/jira/browse/FLINK-23747?focusedCommentId=17410923&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17410923]), i found that TUMBLE WINDOW limit the value of ABS (offset) to be less than window size, but HOP\CUMULATE Windows does not have this limit. Do we uniformly add this restriction to all of them? If add limit is appropriate, give me the ticket and I'll create a pr. {code:java} checkArgument( Math.abs(offset) < size, String.format( "Tumbling Window parameters must satisfy abs(offset) < size, bot got size %dms and offset %dms.", size, offset)); {code} [https://github.com/apache/flink/blob/c13b749782d0d72647ec6d73ce1eb22b57f2be7d/flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/operators/window/slicing/SliceAssigners.java#L154] -- This message was sent by Atlassian Jira (v8.3.4#803005)