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

[yzandrew]

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.  


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