1996fanrui opened a new pull request, #22496:
URL: https://github.com/apache/flink/pull/22496

   ## What is the purpose of the change
   
   If UC and AC-timeout is enabled and the checkpoint is completed as aligned 
checkpoint. The checkpoint type at Checkpoint history should show the aligned 
checkpoint instead of unaligned checkpoint.
   
   ## Brief change log
   
   The unalignedCheckpoint of PendingCheckpointStats will be updated to true 
when the unalignedCheckpoint of any SubtaskStateStats is true.
   
   ## Verifying this change
   
   This change improved some tests and can be verified as follows:
   
   - All tests of PendingCheckpointStatsTest
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): no
     - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: no
     - The serializers: no
     - The runtime per-record code paths (performance sensitive): no
     - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
     - The S3 file system connector: no
   
   ## Documentation
   
     - Does this pull request introduce a new feature? no
     - If yes, how is the feature documented? not documented
   


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