[FLINK-6725] make requiresOver as a contracted method in udagg

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: Table SQL / API
• Assignee: Shaoxuan Wang
• Reporter: Shaoxuan Wang
• Created: 26/May/17 02:32
• Updated: 17/Jul/17 12:14
• Resolved: 17/Jul/17 07:32

Description

I realized requiresOver is defined in the udagg interface when I wrote up the udagg doc. I would like to put requiresOver as a contract method. This makes the entire udagg interface consistently and clean.

Issue Links

• links to: GitHub Pull Request #3993