AmatyaAvadhanula commented on code in PR #12404:
URL: https://github.com/apache/druid/pull/12404#discussion_r860306124


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server/src/test/java/org/apache/druid/metadata/SQLMetadataStorageActionHandlerTest.java:
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@@ -450,4 +465,149 @@ public void testRemoveTasksOlderThan() throws Exception
     Assert.assertEquals(1, handler.getLogs(entryId2).size());
     Assert.assertEquals(1, handler.getLogs(entryId3).size());
   }
+
+  @Test
+  public void testGetTaskStatusPlusList()
+  {
+    // SETUP
+    TaskInfo<Map<String, Object>, Map<String, Object>> activeUnaltered = 
getRandomTaskInfo(true);
+    insertTaskInfo(activeUnaltered, false);
+
+    TaskInfo<Map<String, Object>, Map<String, Object>> completedUnaltered = 
getRandomTaskInfo(false);
+    insertTaskInfo(completedUnaltered, false);
+
+    TaskInfo<Map<String, Object>, Map<String, Object>> activeAltered = 
getRandomTaskInfo(true);
+    insertTaskInfo(activeAltered, true);
+
+    TaskInfo<Map<String, Object>, Map<String, Object>> completedAltered = 
getRandomTaskInfo(false);
+    insertTaskInfo(completedAltered, true);
+
+    Map<TaskLookup.TaskLookupType, TaskLookup> taskLookups = new HashMap<>();
+    taskLookups.put(TaskLookup.TaskLookupType.ACTIVE, 
ActiveTaskLookup.getInstance());
+    taskLookups.put(TaskLookup.TaskLookupType.COMPLETE, 
CompleteTaskLookup.of(null, Duration.millis(86400000)));
+
+    List<TaskStatusPlus> taskStatusPlusList;
+
+    // BEFORE MIGRATION
+
+    // Payload based fetch. task type and groupid will be populated
+    taskStatusPlusList = handler.getTaskStatusPlusList(taskLookups, null, 
true);
+    Assert.assertEquals(4, taskStatusPlusList.size());
+    verify(completedUnaltered, taskStatusPlusList, false, false, true);
+    verify(completedAltered, taskStatusPlusList, false, true, false);
+    verify(activeUnaltered, taskStatusPlusList, true, false, false);
+    verify(activeAltered, taskStatusPlusList, true, true, false);
+
+    // New columns based fetch before migration is complete. type and payload 
are null when altered = false
+    taskStatusPlusList = handler.getTaskStatusPlusList(taskLookups, null, 
false);
+    Assert.assertEquals(4, taskStatusPlusList.size());
+    verify(completedUnaltered, taskStatusPlusList, false, false, true);
+    verify(completedAltered, taskStatusPlusList, false, true, true);
+    verify(activeUnaltered, taskStatusPlusList, true, false, true);
+    verify(activeAltered, taskStatusPlusList, true, true, true);
+
+    // MIGRATION
+    derbyConnectorRule.getConnector().migrateTaskTable(entryTable);
+
+    // Payload based fetch. task type and groupid will still be populated
+    taskStatusPlusList = handler.getTaskStatusPlusList(taskLookups, null, 
true);
+    Assert.assertEquals(4, taskStatusPlusList.size());
+    verify(completedUnaltered, taskStatusPlusList, false, false, false);
+    verify(completedAltered, taskStatusPlusList, false, true, false);
+    verify(activeUnaltered, taskStatusPlusList, true, false, false);
+    verify(activeAltered, taskStatusPlusList, true, true, false);
+
+    // New columns based fetch before migration is complete.
+    // type and payload are not null for completed task but are still null for 
active ones since they aren't migrated
+    // An active task will be eventually updated on its own due to insertion

Review Comment:
   There seems to be a state update called modifyState during which the type 
and groupId need to be altered.
   If there are any other state update operations, type / groupId update has to 
happen alongside each of them



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