sunjincheng created FLINK-6392: ---------------------------------- Summary: Change the alias of Window from optional to essential. Key: FLINK-6392 URL: https://issues.apache.org/jira/browse/FLINK-6392 Project: Flink Issue Type: Improvement Components: Table API & SQL Affects Versions: 1.3.0 Reporter: sunjincheng Assignee: sunjincheng Fix For: 1.3.0
Currently, The window clause use case looks like: {code} tab //Table('a,'b,'c) .window( Slide over 10.milli every 5.milli as 'w) .groupBy('w,'a,'b) // WindowGroupedTable .select('a, 'b, 'c.sum, 'w.start, 'w.end) {code} As we see the alias of window is essential. But the current implementation of the TableAPI does not have the constraint for the alias,So we must refactoring the API definition using TYPE SYSTEM lead to constraint for the alias. -- This message was sent by Atlassian JIRA (v6.3.15#6346)