shuke987 opened a new pull request, #65463:
URL: https://github.com/apache/doris/pull/65463

   ### What problem does this PR solve?
   
   Issue Number: close #xxx
   
   Related PR: #61290
   
   Problem Summary:
   
   `test_alter_job_mtmv` can create the initial `SYSTEM` task and the later 
`COMMIT` task within the same second. The `tasks()` TVF exposes `CreateTime` at 
second precision, so `order by CreateTime desc limit 1` can select the canceled 
`SYSTEM` task even when the intended `COMMIT` task is running and subsequently 
succeeds.
   
   Pass the expected trigger mode to 
`waitingMTMVTaskFinishedByMvNameAllowCancel` and filter `TaskContext` so this 
case waits specifically for the `COMMIT` task triggered by the insert. The 
existing `same table` compatibility behavior is unchanged.
   
   ### Release note
   
   None
   
   ### Check List (For Author)
   
   - Test
       - [ ] Regression test
       - [ ] Unit Test
       - [x] Manual test
           - `mvn -f regression-test/framework/pom.xml -DskipTests compile` 
(`BUILD SUCCESS`, 448 Groovy files compiled)
           - Targeted runtime regression was not run because no test cluster 
was allocated.
       - [ ] No need to test or manual test. Explain why:
   
   - Behavior changed:
       - [x] No.
       - [ ] Yes.
   
   - Does this need documentation?
       - [x] No.
       - [ ] Yes.
   
   ### Check List (For Reviewer who merge this PR)
   
   - [ ] Confirm the release note
   - [ ] Confirm test cases
   - [ ] Confirm document
   - [ ] Add branch pick label
   


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