[GitHub] flink issue #6180: [FLINK-9524][Table API & SQL] check whether a clean-up ti...

Github user yzandrew commented on the issue: https://github.com/apache/flink/pull/6180 Hi, I have updated the pull request based on your comments. In order to have fewer lines of changes, I squashed the commits. ---

[GitHub] flink pull request #6180: [FLINK-9524][Table API & SQL] check whether a clea...

GitHub user yzandrew opened a pull request: https://github.com/apache/flink/pull/6180 [FLINK-9524][Table API & SQL] check whether a clean-up timer is expeired in ProcTimeBoundedRangeOver… … to prevent NPE ## What is the purpose of the change This pull request s